was adding -DNOVERSION -DINIT to wrong variable

* The transport between the Maiko client and Nethub server is TCP based and therefore data is buffered by the kernel so it is not necessary to have an additional layer of buffering to capture multiple logical packets before passing them to the Lisp ethernet interrupt handler.

  * Receive packet directly into Lisp’s buffer and byte-swap in place only if necessary.

  * Ethernet packet handling is no longer done directly in the signal handler so it is not necessary to block/unblock signals while a packet is being read from the byte stream in ether_get().

  * Remove references to ETHEREventCount as it is unnecessary and the implementation (xc.c; other ethernet handlers) that attempted to use it to handle missed ethernet interrupts is incorrect, resulting in calls to the Lisp interrupt handler with no new packet data.

  * Style changes - Use early return rather than nesting if statements.  Move variable declarations from inline to beginning of function if they are not local to a small block. Use %p format specifier for printing pointers.

.github/workflows/build.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [macos-11, ubuntu-22.04, ubuntu-18.04]
+        os: [macos-11, macos-12, ubuntu-22.04, ubuntu-20.04]
     steps:
       - uses: actions/checkout@v2
       - name: Install X11 dependencies on MacOS
@@ -37,7 +37,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [macos-11, ubuntu-22.04, ubuntu-20.04, ubuntu-18.04]
+        os: [macos-11, macos-12, ubuntu-22.04, ubuntu-20.04]
     env:
       BUILD_TYPE: Release
     steps:

CMakeLists.txt

@@ -72,10 +72,30 @@ IF(MAIKO_DISPLAY_X11)
   )
 ENDIF()
 
+# according to: https://cmake.org/pipermail/cmake/2016-October/064342.html
+# the following 2 lines should produce a dropdown-box in the cmake-gui
+# but this will happen only after running the command line version of cmake,
+# possibly after "clearing the cache" (i.e. starting with a fresh build directory)
+SET(MAIKO_NETWORK_TYPE NONE CACHE STRING "Type of networking to use: one of: NONE, SUN_DLPI, SUN_NIT, NETHUB")
+SET_PROPERTY(CACHE MAIKO_NETWORK_TYPE PROPERTY STRINGS NONE SUN_DLPI SUN_NIT NETHUB)
+
+# configure networking implementation to use
+IF(MAIKO_NETWORK_TYPE STREQUAL "NETHUB")
+  LIST(APPEND MAIKO_DEFINITIONS "-DMAIKO_ENABLE_NETHUB")
+  MESSAGE("-- Configured for NETHUB network support")
+ELSEIF(MAIKO_NETWORK_TYPE STREQUAL "SUN_DLPI")
+  LIST(APPEND MAIKO_DEFINITIONS "-DMAIKO_ENABLE_ETHERNET -DUSE_DLPI")
+  MESSAGE("-- Configured for (SunOS) DLPI networking")
+ELSEIF(MAIKO_NETWORK_TYPE STREQUAL "SUN_NIT")
+  LIST(APPEND MAIKO_DEFINITIONS "-DMAIKO_ENABLE_ETHERNET -DUSE_NIT")
+  MESSAGE("-- Configured for (SunOS) NIT networking")
+ELSEIF(NOT MAIKO_NETWORK_TYPE STREQUAL "NONE")
+  MESSAGE(WARNING "Invalid option given for MAIKO_NETWORK_TYPE, must be one of:\nNONE, SUN_DLPI, SUN_NIT, NETHUB")
+ENDIF()
+
 IF(CMAKE_SYSTEM_NAME STREQUAL "SunOS")
   LIST(APPEND MAIKO_DEFINITIONS
     "-DOS5"
-    "-DUSE_DLPI"
   )
 ENDIF()
 
@@ -142,7 +162,9 @@ SET(MAIKO_SRCS
     src/dspif.c
     src/dspsubrs.c
     src/eqf.c
-    src/ether.c
+    src/ether_common.c
+    src/ether_sunos.c
+    src/ether_nethub.c
     src/findkey.c
     src/foreign.c
     src/fp.c

bin/compile-flags

@@ -134,6 +134,24 @@ PKTFILTER	True if the ethernet packets are to be filtered before being
 		passed to the Lisp ethernet handler.  Available on Sun systems
 		for both the NIT and DLPI cases.
 
+MAIKO_ENABLE_NETHUB enables the support for Dodo Nethub networking for Dodo
+		XNS services, see documentation: using-dodo-networking-with-maiko.md
+		(implicitely disables USE_DLPI and USE_NIT)
+
+MAIKO_EMULATE_TIMER_INTERRUPTS enables emulation of recurring timer interrupts for
+		platforms where SIGVTALRM/ITIMER_VIRTUAL or SIGALRM/ITIMER_REAL
+		do not work as expected (like cygwin)
+		timer is emulated by signaling an interrupt after a number of
+		executed instructions, by default 20.000 instructions, this can be
+		overriden by defining MAIKO_TIMER_ASYNC_EMULATION_INSNS_COUNTDOWN
+		with the number of instructions between 2 interrupts
+		additionally this adds the command line arguments -intr-emu-insns
+		for overriding the compiled in instruction interval
+		(not working if OPDISP (fast opcode dispatch) is used)
+
+MAIKO_EMULATE_ASYNC_INTERRUPTS same as MAIKO_EMULATE_TIMER_INTERRUPTS, but also
+		signals an I/O interrupt after each instruction interval
+
 
 bitbltsub.c:#ifdef GETBASE
 testdisplay.c:#ifdef NOTUSED

bin/makefile-cygwin.x86_64-x

@@ -1,7 +1,7 @@
-# Options for Linux, Intel x86_64 and X-Window
+# Options for cygwin
 
-#CC = gcc -m64 $(GCC_CFLAGS)
-CC = clang -m64 $(CLANG_CFLAGS)
+CC = gcc -m64 $(GCC_CFLAGS)  -DMAIKO_ENABLE_NETHUB
+# CC = clang -m64 $(CLANG_CFLAGS) -DMAIKO_ENABLE_NETHUB
 
 XFILES = $(OBJECTDIR)xmkicon.o \
 	$(OBJECTDIR)xbbt.o \
@@ -17,7 +17,8 @@ XFILES = $(OBJECTDIR)xmkicon.o \
 XFLAGS = -DXWINDOW
 
 # OPTFLAGS is normally -O2.
-OPTFLAGS =  -O2 -g3
+OPTFLAGS =  -O0 -g
+
 DFLAGS = $(XFLAGS) -DRELEASE=351
 
 LDFLAGS = -L/usr/X11/lib -lX11 -lc -lm

bin/makefile-init-cygwin.x86_64

@@ -0,0 +1,28 @@
+# Options for cygwin
+
+CC = gcc -m64 $(GCC_CFLAGS)  -DMAIKO_ENABLE_NETHUB
+# CC = clang -m64 $(CLANG_CFLAGS) -DMAIKO_ENABLE_NETHUB
+
+XFILES = $(OBJECTDIR)xmkicon.o \
+	$(OBJECTDIR)xbbt.o \
+	$(OBJECTDIR)dspif.o \
+	$(OBJECTDIR)xinit.o \
+	$(OBJECTDIR)xscroll.o \
+	$(OBJECTDIR)xcursor.o \
+	$(OBJECTDIR)xlspwin.o \
+	$(OBJECTDIR)xrdopt.o \
+	$(OBJECTDIR)xwinman.o
+
+XFLAGS = -DXWINDOW
+
+# OPTFLAGS is normally -O2.
+OPTFLAGS =  -O0 -g
+DEBUGFLAGFLAGS =
+DFLAGS = $(DEBUGFLAGS) $(XFLAGS) -DRELEASE=351 -DNOVERSION -DINIT
+
+LDFLAGS = -L/usr/X11/lib -lX11 -lc -lm
+LDELDFLAGS =  -L/usr/X11/lib -lX11 -lc -lm
+
+OBJECTDIR = ../$(RELEASENAME)/
+
+default	: ../$(OSARCHNAME)/ldeinit

bin/makefile-linux.x86_64-x

@@ -1,7 +1,7 @@
 # Options for Linux, Intel x86_64 and X-Window
 
 #CC = gcc -m64 $(GCC_CFLAGS)
-CC = clang -m64 $(CLANG_CFLAGS)
+CC = clang -m64 $(CLANG_CFLAGS) -DMAIKO_ENABLE_NETHUB
 
 XFILES = $(OBJECTDIR)xmkicon.o \
 	$(OBJECTDIR)xbbt.o \

bin/makefile-tail

@@ -115,7 +115,9 @@ DEVICES = $(OBJECTDIR)dspsubrs.o \
 	$(OBJECTDIR)dir.o \
 	$(OBJECTDIR)keyevent.o \
 	$(OBJECTDIR)kbdsubrs.o \
-	$(OBJECTDIR)ether.o \
+	$(OBJECTDIR)ether_common.o \
+	$(OBJECTDIR)ether_sunos.o \
+	$(OBJECTDIR)ether_nethub.o \
 	$(OBJECTDIR)tty.o \
 	$(OBJECTDIR)initkbd.o
 
@@ -472,12 +474,26 @@ $(OBJECTDIR)mouseif.o: $(SRCDIR)mouseif.c $(REQUIRED-INCS) $(INCDIR)lispemul.h \
 	$(INCDIR)dbprint.h $(INCDIR)devif.h
 	$(CC) $(RFLAGS) $(SRCDIR)mouseif.c -o $(OBJECTDIR)mouseif.o
 
-$(OBJECTDIR)ether.o: $(SRCDIR)ether.c $(REQUIRED-INCS) \
+$(OBJECTDIR)ether_common.o: $(SRCDIR)ether_common.c $(REQUIRED-INCS) \
 	$(INCDIR)commondefs.h $(INCDIR)lispemul.h \
 	$(INCDIR)lispmap.h $(INCDIR)emlglob.h $(INCDIR)lsptypes.h $(INCDIR)lspglob.h \
 	$(INCDIR)ifpage.h $(INCDIR)iopage.h $(INCDIR)miscstat.h $(INCDIR)adr68k.h \
 	$(INCDIR)ether.h $(INCDIR)dbprint.h $(INCDIR)etherdefs.h
-	$(CC) $(RFLAGS) $(SRCDIR)ether.c -o $(OBJECTDIR)ether.o
+	$(CC) $(RFLAGS) $(SRCDIR)ether_common.c -o $(OBJECTDIR)ether_common.o
+
+$(OBJECTDIR)ether_sunos.o: $(SRCDIR)ether_sunos.c $(REQUIRED-INCS) \
+	$(INCDIR)commondefs.h $(INCDIR)lispemul.h \
+	$(INCDIR)lispmap.h $(INCDIR)emlglob.h $(INCDIR)lsptypes.h $(INCDIR)lspglob.h \
+	$(INCDIR)ifpage.h $(INCDIR)iopage.h $(INCDIR)miscstat.h $(INCDIR)adr68k.h \
+	$(INCDIR)ether.h $(INCDIR)dbprint.h $(INCDIR)etherdefs.h
+	$(CC) $(RFLAGS) $(SRCDIR)ether_sunos.c -o $(OBJECTDIR)ether_sunos.o
+
+$(OBJECTDIR)ether_nethub.o: $(SRCDIR)ether_nethub.c $(REQUIRED-INCS) \
+	$(INCDIR)commondefs.h $(INCDIR)lispemul.h \
+	$(INCDIR)lispmap.h $(INCDIR)emlglob.h $(INCDIR)lsptypes.h $(INCDIR)lspglob.h \
+	$(INCDIR)ifpage.h $(INCDIR)iopage.h $(INCDIR)miscstat.h $(INCDIR)adr68k.h \
+	$(INCDIR)ether.h $(INCDIR)dbprint.h $(INCDIR)etherdefs.h
+	$(CC) $(RFLAGS) $(SRCDIR)ether_nethub.c -o $(OBJECTDIR)ether_nethub.o
 
 $(OBJECTDIR)findkey.o: $(SRCDIR)findkey.c $(REQUIRED-INCS) \
 	$(INCDIR)lispemul.h $(INCDIR)lispmap.h \

docs/Using-Dodo-networking-with-Maiko.md

@@ -0,0 +1,86 @@
+# Using Dodo-networking with Maiko
+
+The [Dodo XNS services](https://github.com/devhawala/dodo) provide an emulation for a usable
+subset of the Xerox 8000 Network Services from the 1980-ies. Dodo uses its own virtual
+network infrastructure - the Dodo *Nethub* - for avoiding the problems involved with
+implementing the transmission of XNS protocol packets over (real or virtual) network
+adapters of the diverse contemporary operating systems.
+
+The Dodo Nethub provides a simple virtual network, a kind of *XNS-over-TCP/IP*,
+where clients and servers connect with TCP/IP to the central Nethub program, which relays all
+packets ingoing from one connection to the other connections.
+
+The following sections describe the support for Dodo-networking added to
+Maiko. The Dodo Nethub support was implemented and tested with Linux on the x86_64
+architecture. However as only standard system calls for TCP/IP were used, adapting to other
+platforms if necessary should be possible.
+
+This extension allows Medley 3.51 running in a Maiko VM to use the XNS services
+*Clearinghouse*, *Filing* and *Printing* provided by Dodo (using the *Mail* service may
+also be possible, but this was not verified so far)  
+
+## Building Maiko with Dodo-networking support
+
+As long as Dodo-networking support is not merged into the `master`-branch
+of the primary Maiko repository, this networking option is only available in this
+clone of the original Maiko repository in the branch `dodo-nethub-support`.    
+(however: this branch should already be checked out if this file is present)
+
+The Dodo-networking support is enabled by defining `MAIKO_ENABLE_NETHUB`
+when compiling Maiko. This can be done in the Makefile for the relevant platform
+(file `bin/makefile-`*platform*) for example in the line where the compiler-command
+variable is defined.
+
+This is already done in the Makefile for the *Linux-x86_64-X* platform (file
+`bin/makefile-linux.x86_64-x`), where the compiler-command defined as follows:
+
+```
+CC = clang -m64 $(CLANG_CFLAGS) -DMAIKO_ENABLE_NETHUB
+```
+
+After a complete (re-)build, this Maiko VM optionally allows to connect to a Dodo Nethub
+and through this to use Dodo XNS services.
+  
+
+## Running Maiko with Dodo-networking
+
+With Dodo-networking support compiled in, Maiko (i.e. the program `ldex`) accepts the
+following additional commandline options:
+
+- `-nh-host` *dodo-host*    
+  the name or IP-address of the host where the Dodo Nethub program runs; no connection to
+  Dodo services will be opened if this option is not specified    
+  Default: (*none*)
+
+- `-nh-port` *port-number*    
+  the port which the Dodo Nethub is listening to at *dodo-host*    
+  Default: `3333`
+
+- `-nh-mac` *machine-id*    
+  the machine-id (aka. MAC-address) that this Maiko VM instance will use in the Dodo network;
+  the machine-id must be given as 48 bit hexadecimal value with a dash as byte-separator, i.e.
+  in the format *XX-XX-XX-XX-XX-XX* (with *XX* the hexcode for a single byte)     
+  Default: `CA-FF-EE-12-34-56`
+
+- `-nh-loglevel` *log-level*    
+  the detail level of logging to `stdout`, one of:    
+  `0`: log only main events (connect, disconnect or the like)    
+  `1`: log network events each with a single line    
+  `2`: detailled log of network events    
+  Default: `0`
+
+So by default Maiko will not connect to a Dodo nethub and behave like a "standard" version
+without networking support.    
+To use Dodo XNS services, the option `-nh-host` must be given to specify the location
+of the Dodo nethub. In the simplest (and probably most usual) case where Dodo is run on the
+same machine as Maiko/Medley, the value for option `-nh-host` will be *localhost*, so
+adding the option `-nh-host localhost` when starting the Medley Lisp system will allow
+to use the XNS services of a Dodo system running locally.  
+
+Specifying the *machine-id* is optional unless more than one Maiko/Medley instances are to use
+Dodo XNS services concurrently: in this case, each Maiko VM *must* use a *unique* machine-id,
+so at most one Maiko VM may omit the `-nh-mac` option.    
+However, each machine-id used by the Maiko VMs should have an entry in the `machine.cfg`
+file of the Dodo installation, cloning or copying the low-level SPP-configuration of the
+`maiko-Lisp-One` example entry in the `machine.cfg` of the Dodo `dist.zip`
+distribution.

inc/adr68k.h

@@ -86,26 +86,4 @@ static inline LispPTR LPageFromNative(void *NAddr)
   }
   return (((DLword *)NAddr) - Lisp_world) >> 8;
 }
-/*  translate 68k ptr to Lisp DLword address */
-#define LADDR_from_68k(ptr68k)	((LispPTR)(((UNSIGNED)(ptr68k) - (UNSIGNED)Lisp_world) >>1))
-
-
-/*  translate 68k ptr to Lisp Page number   */
-#define LPAGE_from_68k(ptr68k)	(LADDR_from_68k(ptr68k) >> 8)
-
-
-/* Translate Lisp_address to 68K address	*/
-/*	Lisp_addr: word offset		*/
-#define Addr68k_from_LADDR(Lisp_addr)	(Lisp_world + (Lisp_addr))
-
-
-/* translate LispPage to 68k address */
-#define Addr68k_from_LPAGE(Lisp_page)	(Addr68k_from_LADDR(((Lisp_page) << 8) ))
-/* Stack Offset Macros */
-
-#define StkOffset_from_68K(ptr68k)\
-	((LispPTR)(((UNSIGNED)(ptr68k) - (UNSIGNED)Stackspace) >>1))
-
-#define Addr68k_from_StkOffset(stkoffset)\
-	(Stackspace + (stkoffset))
 #endif /* ADR68K_H */

inc/bb.h

@@ -738,7 +738,7 @@ int srcRshift;
 /************************************************************************/
 
 #define  new_bitblt_code			\
-{						\
+do {						\
 variables					\
 some_init					\
 while (num_lines_remaining-- > 0)		\
@@ -778,7 +778,7 @@ next_line:					\
     continue;					\
   }						\
 } /* end line loop */				\
-}
+} while (0)
 
 
 
@@ -791,7 +791,7 @@ next_line:					\
 /************************************************************************/
 
 #define  new_gray_bitblt_code			\
-{						\
+do {						\
 variables					\
 some_init					\
 while (num_lines_remaining-- > 0)		\
@@ -803,7 +803,7 @@ do_fpt:						\
 next_line:					\
   do_gray_advance				\
 } /* end line loop */				\
-}
+} while (0)
 
 
 
@@ -816,7 +816,7 @@ next_line:					\
 /************************************************************************/
 
 #define  new_char_bitblt_code			\
-{						\
+do {						\
 variables					\
 some_init					\
 while (num_lines_remaining-- > 0)		\
@@ -828,7 +828,7 @@ do_fpt:						\
 next_line:					\
   F_do_advance					\
 } /* end line loop */				\
-}
+} while (0)
 
 
 

inc/bitblt.h

@@ -76,13 +76,13 @@ extern DLword *EmCursorX68K,*EmCursorY68K;
 /* Macro for locking and unlocking screen to prevent multiple updates */
 
 #ifdef DOS
-#define LOCKSCREEN currentdsp->device.locked++;
-#define UNLOCKSCREEN currentdsp->device.locked--;
+#define LOCKSCREEN currentdsp->device.locked++
+#define UNLOCKSCREEN currentdsp->device.locked--
 
 #else
 
-#define LOCKSCREEN ScreenLocked = T;
-#define UNLOCKSCREEN ScreenLocked = NIL;
+#define LOCKSCREEN ScreenLocked = T
+#define UNLOCKSCREEN ScreenLocked = NIL
 
 #endif /* DOS */
 #endif /* BITBLT_H */

inc/byteswapdefs.h

@@ -10,16 +10,6 @@ static inline unsigned int swapx(unsigned int word) {
   return (((word >> 16) & 0xffff) | ((word & 0xffff) << 16));
 }
 
-/****************************************************************/
-/*                                                              */
-/*                 Byte-swap a single 2-byte word               */
-/*                                                              */
-/****************************************************************/
-static inline unsigned short byte_swap_word(unsigned short word) {
-  return ((word >> 8) | (unsigned short)((word & 0xff) << 8));
-}
-
-void byte_swap_page(unsigned short *page, int wordcount);
 void word_swap_page(unsigned short *page, int longwordcount);
 void bit_reverse_region(unsigned short *top, int width, int height, int rasterwidth);
 #ifdef RESWAPPEDCODESTREAM

inc/cell.h

@@ -416,11 +416,11 @@ struct cadr_cell {
 /* When cadr() function is called, type check should be done. */
 
 #define S_N_CHECKANDCADR(sour, dest, tos)    \
-  {                                          \
+  do {                                        \
     LispPTR parm = sour;            \
     if (GetTypeNumber(parm) != TYPE_LISTP) { \
       ERROR_EXIT(tos);                       \
     } else                                   \
       (dest) = cadr(parm);                   \
-  }
+  } while (0)
 #endif

inc/etherdefs.h

@@ -14,4 +14,10 @@ LispPTR check_ether(void);
 void init_ifpage_ether(void);
 void init_ether(void);
 LispPTR check_sum(LispPTR *args);
+
+void setNethubHost(char* host);
+void setNethubPort(int port);
+void setNethubMac(int m0, int m1, int m2, int m3, int m4, int m5);
+void setNethubLogLevel(int ll);
+void connectToHub();
 #endif

inc/gcdata.h

@@ -48,23 +48,23 @@
 
    /* IncAllocCnt is called only when *Reclaim_cnt_word != NIL */
 
-#define IncAllocCnt(n) {\
+#define IncAllocCnt(n) do { \
 	if ((*Reclaim_cnt_word -= (n)) <= S_POSITIVE) { \
-		/* time for GC */\
-		Irq_Stk_Check = Irq_Stk_End = 0;\
-		*Reclaim_cnt_word = S_POSITIVE;\
-	};\
-}
+		/* time for GC */ \
+		Irq_Stk_Check = Irq_Stk_End = 0; \
+		*Reclaim_cnt_word = S_POSITIVE; \
+	} \
+  } while (0)
 
    /* DecAllocCnt only called when *Reclaim_cnt_word != NIL */
 
-#define DecAllocCnt(n) { *Reclaim_cnt_word += (n); }
+#define DecAllocCnt(n) do { *Reclaim_cnt_word += (n); } while (0)
 
-#define FreeLink(link) {                        \
+#define FreeLink(link) do {                        \
 	GETGC(link) = 0;                        \
 	GETGC((link)+1) = GETGC(HTcoll);        \
 	GETGC(HTcoll) = ((link) - HTcoll);      \
-}
+  } while (0)
 
 
   /* Given the contents of an HTMAIN or HTCOLL entry,
@@ -72,7 +72,7 @@
 #define GetLinkptr(entry)       ((entry) & 0x0fffffffe)
 
 
-#define DelLink(link, prev, entry) {                                    \
+#define DelLink(link, prev, entry) do {                                    \
   if ((prev) != (GCENTRY *)0)                                           \
     {                                                                   \
       GETGC((GCENTRY *)(prev) + 1) = GETGC((GCENTRY *)(link) + 1);      \
@@ -88,41 +88,41 @@
       GETGC((GCENTRY *)(entry)) = GETGC((GCENTRY *)(link));             \
       FreeLink((GCENTRY *)(link));                                      \
     }                                                                   \
-}
+  } while (0)
 
 #define RefCntP(ptr) (!(GetTypeEntry((ptr)) & TT_NOREF) &&              \
 		      (*GcDisabled_word != ATOM_T))
 
-#define GCLOOKUP(ptr, case) {                                                \
+#define GCLOOKUP(ptr, case) do {                                                \
 	if (RefCntP(ptr)) {                                                  \
 		if (*Reclaim_cnt_word != NIL)                                \
 		  htfind(ptr, case);                                         \
 		else                                                         \
 		  rec_htfind(ptr, case);                                     \
 	}                                                                    \
-}
+  } while (0)
 
-#define GCLOOKUPV(ptr, case, val) {                                          \
+#define GCLOOKUPV(ptr, case, val) do {                                          \
 	if (RefCntP(ptr)) {                                                  \
 		if (*Reclaim_cnt_word != NIL)                                \
                   (val) = htfind((ptr), (case));                             \
 		else                                                         \
                   (val) = rec_htfind((ptr), (case));                         \
 	} else (val) = NIL;                                                  \
-}
+  } while (0)
 
-#define REC_GCLOOKUP(ptr, case) { if (RefCntP(ptr)) rec_htfind(ptr, case); }
-#define REC_GCLOOKUPV(ptr, case, val) {                                      \
+#define REC_GCLOOKUP(ptr, case) do { if (RefCntP(ptr)) rec_htfind(ptr, case); } while (0)
+#define REC_GCLOOKUPV(ptr, case, val) do {                                      \
 	if (RefCntP(ptr))                                                    \
           (val) = rec_htfind((ptr), (case));                                 \
 	else                                                                 \
           (val) = NIL;                                                       \
-}
+  } while (0)
 
-#define FRPLPTR(old , new) { \
+#define FRPLPTR(old , new) do { \
 		GCLOOKUP(new, ADDREF); \
 		GCLOOKUP(old, DELREF); \
-		(old) = (new) ; }
+		(old) = (new) ; } while (0)
 
 
 #ifndef BYTESWAP

inc/lispver1.h

@@ -4,7 +4,7 @@
 
 /* DOS version of LispVersionToUnixVersion */
 #define LispVersionToUnixVersion(pathname, ver)				\
-  {									\
+  do {									\
 									\
     char	*cp;						\
     char	*vp;						\
@@ -43,5 +43,5 @@
 	else ver = -1;							\
       }									\
       else ver = -1;							\
-  }
+    } while (0)
 #endif /* LISPVER1_H */

inc/lispver2.h

@@ -4,7 +4,7 @@
 
 /* non-DOS version of LispVersionToUnixVersion */
 
-#define LispVersionToUnixVersion(pathname){				\
+#define LispVersionToUnixVersion(pathname) do {				\
 									\
 	char	*lv_cp;						\
 	char	*lv_vp;						\
@@ -70,5 +70,5 @@
 			lv_vp--;	/* Just for label */		\
 		}							\
 	}								\
-}
+} while (0)
 #endif /* LISPVER2_H */

inc/locfile.h

@@ -45,24 +45,24 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 			/* For getfileinfo. For WDATE&RDATE */
 			/* 29969152 == (timer.c)LISP_UNIX_TIME_DIFF */
 
-#define StrNCpyFromCToLisp(lispbuf, cbuf ,len)	{	\
+#define StrNCpyFromCToLisp(lispbuf, cbuf ,len)	do {	\
 			char *lf_sptr = (cbuf);		\
                         char *lf_dptr = (lispbuf);                      \
 			for(size_t lf_i=0;lf_i<(len);lf_i++)\
 				GETBYTE(lf_dptr++) = *lf_sptr++;		\
-		}
+  } while (0)
 
-#define StrNCpyFromLispToC(cbuf , lispbuf, len)	{	\
+#define StrNCpyFromLispToC(cbuf , lispbuf, len)	do {	\
 			char *lf_sptr = (lispbuf);                                          \
 			char *lf_dptr = (cbuf);                       \
 			for(size_t lf_i=0;lf_i<(len);lf_i++)\
 				*lf_dptr++ = GETBYTE(lf_sptr++);		\
-		}
+  } while (0)
 
-#define FGetNum(ptr, place) { \
+#define FGetNum(ptr, place) do { \
              if(((ptr) & SEGMASK)== S_POSITIVE) {(place) = ((ptr) & 0xffff);}\
         else if(((ptr) & SEGMASK)== S_NEGATIVE) {(place) = (int)((ptr)| 0xffff0000);}\
-        else {return(NIL);}}
+        else {return(NIL);}} while (0)
 
 
 /************************************************************************/
@@ -81,7 +81,7 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 /************************************************************************/
 #ifndef BYTESWAP
 #define	LispStringToCString(Lisp, C, MaxLen)				\
-  {									\
+  do {									\
     OneDArray	*lf_arrayp;						\
     char	*lf_base, *lf_dp;						\
     short	*lf_sbase;							\
@@ -108,10 +108,10 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 	default:							\
 		error("LispStringToCString: Not a character array.\n");	\
       }									\
-  }
+ } while (0)
 #else  /* BYTESWAP == T CHANGED-BY-TAKE */
 #define	LispStringToCString(Lisp, C, MaxLen)				\
-  {									\
+  do {									\
     OneDArray	*lf_arrayp;						\
     char	*lf_base, *lf_dp;						\
     short	*lf_sbase;							\
@@ -138,7 +138,7 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 	default:							\
 		error("LispStringToCString: Not a character array.\n");	\
       }									\
-  }
+  } while (0)
 
 #endif /* BYTESWAP */
 
@@ -154,7 +154,7 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 /*									*/
 /************************************************************************/
 #define	LispStringLength(LispString, Length, FatP)			\
-  {									\
+  do {									\
     OneDArray	*lf_arrayp;						\
     lf_arrayp = (OneDArray *)(NativeAligned4FromLAddr(LispString));		\
     switch(lf_arrayp->typenumber)					\
@@ -171,7 +171,7 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 	default:							\
 		error("LispStringLength: Not a character array.\n");	\
       }									\
-  }
+    } while (0)
 
 
 
@@ -184,11 +184,11 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 /*									*/
 /************************************************************************/
 #define STRING_BASE(lstringp, cstringp) \
-  {				\
+do  {				\
 	LispPTR	*lf_naddress;				  \
 	lf_naddress = (LispPTR *)(NativeAligned4FromLAddr(lstringp));		  \
 	(cstringp) = (char *)(NativeAligned2FromLAddr(((OneDArray *)lf_naddress)->base)); \
-  }
+ } while (0)
 
 #ifndef min
 #define min(a, b) (((a) <= (b))?(a):(b))
@@ -200,23 +200,23 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 
 #define	UPLOWDIFF	0x20
 
-#define	DOWNCASE(name){						\
+#define	DOWNCASE(name) do {						\
 								\
 	char	*lf_cp;						\
 								\
 	for(lf_cp = (name); *lf_cp!='\0'; ++lf_cp)                      \
 	  if((*lf_cp >= 'A') && (*lf_cp <= 'Z')) *lf_cp += UPLOWDIFF;	\
-}
+  } while (0)
 
-#define	UPCASE(name){						\
+#define	UPCASE(name) do {						\
 								\
 	char	*lf_cp;					\
 								\
 	for(lf_cp = (name); *lf_cp!='\0'; ++lf_cp)                      \
 	  if((*lf_cp >= 'a') && (*lf_cp <= 'z')) *lf_cp -= UPLOWDIFF;	\
-}
+  } while (0)
 
-#define DIR_OR_FILE_P(name, type){				\
+#define DIR_OR_FILE_P(name, type) do {				\
 	int	lf_result;				\
 	struct stat	lf_statbuf;				\
 								\
@@ -244,9 +244,9 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 			break;					\
 		}						\
 	}							\
-}
+  } while (0)
 
-#define	DIRP(path, dir, buf){				\
+#define	DIRP(path, dir, buf) do {				\
 	int lf_rval;					\
 	struct	stat	lf_statbuf;			\
 		strcpy(buf, path);			\
@@ -262,9 +262,9 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 			*Lisp_errno = 60;		\
 			return(0);			\
 		}					\
-		}
+  } while (0)
 
-#define	FILEP(path, file, buf){				\
+#define	FILEP(path, file, buf) do {				\
 	int lf_rval;					\
 		strcpy(buf, path);			\
 		strcat(buf, file);			\
@@ -273,7 +273,7 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 			strcat(path, file);		\
 			return(1);			\
 		}					\
-		}
+  } while (0)
 
 #define	STREQ(name1, name2)(	\
                 (*(name1) == *(name2)) && (strcmp(name1, name2) == 0)   \
@@ -281,7 +281,7 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 
 #define	SPECIALFILEMARK		(-1)
 
-#define NumericStringP(str, truetag, falsetag) {			\
+#define NumericStringP(str, truetag, falsetag) do {			\
 	char	*lfn_cp;						\
 									\
         /* NOLINTNEXTLINE(bugprone-macro-parentheses) */		\
@@ -291,7 +291,7 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 	  if(*lfn_cp < '0' || '9' < *lfn_cp)				\
 	    goto falsetag; /* NOLINT(bugprone-macro-parentheses) */	\
 	goto truetag;	/* NOLINT(bugprone-macro-parentheses) */	\
-}
+  } while (0)
 
 /*		
  * Name:	LispVersionToUnixVersion
@@ -353,7 +353,7 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
  * dealt with as version 1. 
  */
 
-#define UnixVersionToLispVersion(pathname, vlessp){				\
+#define UnixVersionToLispVersion(pathname, vlessp) do {				\
 										\
 	char	*start;							\
 	char	*end;							\
@@ -408,7 +408,7 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 		/* Dealt with as version 1 unless vlessp. */			\
                 if (!(vlessp)) strcat(pathname, ";1");                          \
 	}									\
-}
+  } while (0)
 
 /*		
  * Name:	ConcDirAndName
@@ -428,7 +428,7 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
  *
  */
 
-#define ConcDirAndName(dir, name, fname){					\
+#define ConcDirAndName(dir, name, fname) do {					\
 									\
 	char	*lf_cp1, *lf_cp2;					\
 									\
@@ -464,7 +464,7 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 		strcat(fname, "/");					\
 		strcat(fname, name);					\
 	}								\
-}
+  } while (0)
 
 /*		
  * Name:	ConcNameAndVersion
@@ -483,7 +483,7 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
  *
  */
 
-#define ConcNameAndVersion(name, ver, rname){				\
+#define ConcNameAndVersion(name, ver, rname) do {				\
 	if (*(ver) != '\0') {						\
 		strcpy(rname, name);					\
 		strcat(rname, ".~");					\
@@ -492,7 +492,7 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 	} else {							\
 		strcpy(rname, name);					\
 	}								\
-}
+} while (0)
 
 #define	 VERSIONLEN		16
 
@@ -517,7 +517,7 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 /* Like "foo/fee.fee;3" or "/foo/foo;3" */
 /* AddDotNoExtension must be put after UnixVersionToLispVersion */
 
-#define	AddDotNoExtension(file){			\
+#define	AddDotNoExtension(file) do {			\
 		char	*lf_cp;			\
 		char	*lf_cp1;			\
 		if( (strrchr(file,'.')== 0) && ((lf_cp=strrchr(file,';'))!=0) ){	\
@@ -527,41 +527,41 @@ extern	DLword	*Lisp_world;	/* To access LispSysout area */
 				*lf_cp1 = *(lf_cp1-1);	\
 			*lf_cp = '.';			\
 		}					\
-		}
+  } while (0)
 
 /* An argument of RemoveDotNoExtension must be LispVersion convention */
 /* Like "foo/fee.fee;3" or "/foo/foo.;3" */
 /* RemoveDotNoExtension must be put before LispVersionToUnixVersion */
 
-#define RemoveDotNoExtension(file){					\
+#define RemoveDotNoExtension(file) do {					\
 		char	*lf_cp;					\
 		if( ((lf_cp=strrchr(file, ';'))!=0) && (*(lf_cp-1)=='.') ){	\
 			for(;*lf_cp!='\0';++lf_cp)				\
 				*(lf_cp-1) = *lf_cp;				\
 			*(lf_cp-1) = '\0';					\
 		}							\
-		}
+  } while (0)
 		
 
 extern	int	errno;
 
-#define	ChangeToVersionless(pathname){			\
+#define	ChangeToVersionless(pathname) do {			\
 		char	*lf_cp;			\
 		if( (lf_cp=strrchr(pathname, ';')) != 0)	\
 			*lf_cp = '\0';			\
-		}
+  } while (0)
 
 
-#define	UNLINK(x){					\
+#define	UNLINK(x) do {					\
 		TIMEOUT(lf_rval=unlink(x));		\
 		if(lf_rval == -1){				\
 			err_mess("unlink", errno);	\
 			*Lisp_errno = errno;		\
 			return(0);			\
 		}					\
-		}
+  } while (0)
 
-#define LINK(x,y){					\
+#define LINK(x,y) do {					\
 		TIMEOUT(lf_rval=link(x, y));		\
 		if(lf_rval == -1){				\
 			if(errno == 2)			\
@@ -572,9 +572,9 @@ extern	int	errno;
 				return(0);		\
 			}				\
 		}					\
-		}
+  } while (0)
 
-#define RENAME(x,y){					\
+#define RENAME(x,y) do {					\
 		TIMEOUT(lf_rval=rename(x, y));		\
 		if(lf_rval == -1){				\
 			switch(errno){			\
@@ -589,26 +589,26 @@ extern	int	errno;
 				return(0);		\
 			}				\
 		}					\
-		}
+  } while (0)
 
-#define	STAT(x,y){					\
+#define	STAT(x,y) do {					\
 		TIMEOUT(lf_rval=stat(x, y));		\
 		if(lf_rval != 0){				\
 			err_mess("stat", errno);	\
 			*Lisp_errno = errno;		\
 			return(-1);			\
 		}					\
-		}
+  } while (0)
 
 /*
  * For file name length check
  */
 #define FNAMETOOLONG	200
 
-#define FileNameTooLong(val) {				\
+#define FileNameTooLong(val) do {				\
 	*Lisp_errno = FNAMETOOLONG;			\
 	return((val));					\
-}
+  } while (0)
 
 
 

inc/maiko/platform.h

@@ -17,6 +17,8 @@
 #  define MAIKO_OS_CYGWIN 1
 #  define MAIKO_OS_NAME "Cygwin"
 #  define MAIKO_OS_UNIX_LIKE 1
+#  define MAIKO_EMULATE_TIMER_INTERRUPTS 1
+#  define MAIKO_EMULATE_ASYNC_INTERRUPTS 1
 #  define MAIKO_OS_DETECTED 1
 #endif
 

inc/my.h

@@ -34,7 +34,7 @@
 /*	from SMALLP or FIXP, if necessary.				*/
 /*									*/
 /************************************************************************/
-#define	N_MakeFloat(arg, dest, tos){					\
+#define	N_MakeFloat(arg, dest, tos) do {				\
 	switch (SEGMASK & (LispPTR)(arg)) {				\
 	case S_POSITIVE:						\
 		(dest) = (float)(0xFFFF & (LispPTR)(arg));		\
@@ -53,11 +53,11 @@
 		  default: ERROR_EXIT(tos);				\
 		}							\
 	}								\
-}
+} while (0)
 
 
 
-#define	N_GetPos(arg, dest, tos){					\
+#define	N_GetPos(arg, dest, tos) do {					\
 	if (((arg) & SEGMASK) == S_POSITIVE)				\
 		(dest) = (arg) & 0xFFFF;				\
 	else	{							\
@@ -65,7 +65,7 @@
 	if (((dest) = *((int *)NativeAligned4FromLAddr(arg))) & 0x80000000)	\
 		ERROR_EXIT(tos);					\
 		}							\
-	}
+} while (0)
 
 static inline LispPTR
 aref_switch(unsigned type, LispPTR tos, LispPTR baseL, int index)
@@ -117,7 +117,7 @@ aref_switch(unsigned type, LispPTR tos, LispPTR baseL, int index)
 }
 
 #define aset_switch(type, tos)						\
-{									\
+do {									\
    switch (type) {							\
       case 38: /* pointer : 32 bits */					\
 	GCLOOKUP(*(((int *)NativeAligned4FromLAddr(base)) + index), DELREF); \
@@ -178,5 +178,5 @@ aref_switch(unsigned type, LispPTR tos, LispPTR baseL, int index)
       default: /* Illegal or Unimplemented */				\
         ERROR_EXIT(tos);						\
     }/* end switch typenumber */					\
-}
+} while (0)
 #endif /* MY_H */

inc/osmsg.h

@@ -18,9 +18,9 @@
 #include "osmsgdefs.h"   // for flush_pty
 
 #define	OSMESSAGE_PRINT(print_exp)		\
-  {						\
+  do {						\
     flush_pty();				\
     print_exp;					\
-  }
+  } while (0)
 
 #endif /* OSMSG_H */

inc/return.h

@@ -65,21 +65,22 @@
 /** in CONTEXTSW , for exchanging context **/
 
 #define Midpunt(fxnum) 							\
-  { DLword midpunt; 					\
+  do { DLword midpunt; 					\
     midpunt = LOLOC(LAddrFromNative(CURRENTFX));			\
     PVar=(DLword *)							\
-	    Addr68k_from_StkOffset(					\
+	    NativeAligned2FromStackOffset(					\
                         (GETWORD(((DLword *)InterfacePage) + (fxnum)))) \
 		+ FRAMESIZE; 						\
     GETWORD(((DLword *)InterfacePage) + (fxnum)) = midpunt ;		\
-  }
+  } while (0)
 
 
 #define CHECKFX							\
-  if (((UNSIGNED)PVar -(UNSIGNED)CURRENTFX) != 20)			\
+  do { if (((UNSIGNED)PVar -(UNSIGNED)CURRENTFX) != 20)          \
     { printf("Invalid FX(0x%x) and PV(0x%x) \n",		\
 	     LAddrFromNative(CURRENTFX),LAddrFromNative(PVar));	\
-    }
+    }                                                           \
+  } while (0)
 
 
 
@@ -87,17 +88,17 @@
 	that it is called by CONTEXTSW in original LISP code **/
 
 #define BEFORE_CONTEXTSW						\
-  { CurrentStackPTR += 2; 						\
-    CURRENTFX->nextblock=StkOffset_from_68K(CurrentStackPTR); 		\
+  do { CurrentStackPTR += 2; 						\
+    CURRENTFX->nextblock=StackOffsetFromNative(CurrentStackPTR); 		\
     GETWORD(CurrentStackPTR)=STK_FSB_WORD; 				\
     GETWORD(CurrentStackPTR+1)= (((UNSIGNED)EndSTKP-(UNSIGNED)(CurrentStackPTR))>>1); \
     if (GETWORD(CurrentStackPTR+1) == 0) error("0-long free block."); \
-  }
+  } while (0)
 
 
 #define AFTER_CONTEXTSW							\
-  { DLword *ac_ptr68k,*ac_freeptr;					\
-    ac_ptr68k = (DLword*)Addr68k_from_StkOffset(CURRENTFX->nextblock);	\
+  do { DLword *ac_ptr68k,*ac_freeptr;					\
+    ac_ptr68k = (DLword*)NativeAligned2FromStackOffset(CURRENTFX->nextblock);	\
     if(GETWORD(ac_ptr68k) != STK_FSB_WORD) error("pre_moveframe: MP9316");	\
     CHECK_FX(CURRENTFX);						\
     ac_freeptr=ac_ptr68k;							\
@@ -109,5 +110,5 @@
     CHECK_FX(CURRENTFX);						\
     S_CHECK( EndSTKP > CurrentStackPTR, 				\
 		"End of stack isn't beyond current stk pointer."); 	\
-  }
+  } while (0)
 #endif /* RETURN_H */

inc/stack.h

@@ -305,51 +305,51 @@ typedef struct stackp {
 #define SLOWP(fx) (((FXBLOCK *)(fx))->slowp)
 #define FASTP(fx) (!SLOWP(fx))
 #define SET_FASTP_NIL(fx68k)                                       \
-  {                                                                \
+  do {                                                             \
     if (FASTP(fx68k)) {                                            \
-      ((FX *)(fx68k))->blink = StkOffset_from_68K(DUMMYBF(fx68k)); \
+      ((FX *)(fx68k))->blink = StackOffsetFromNative(DUMMYBF(fx68k)); \
       ((FX *)(fx68k))->clink = ((FX *)(fx68k))->alink;             \
       SLOWP(fx68k) = T;                                            \
     }                                                              \
-  }
+  } while (0)
 
 #define GETALINK(fx) ((((fx)->alink) & 0xfffe) - FRAMESIZE)
 #define SETALINK(fx, val)                                \
-  {                                                      \
+  do {                                                   \
     if (FASTP(fx)) {                                     \
       ((FX *)(fx))->blink = LAddrFromNative(DUMMYBF(fx)); \
       ((FX *)(fx))->clink = ((FX *)(fx))->alink;         \
     }                                                    \
     ((FX *)(fx))->alink = (val) + FRAMESIZE + 1;         \
-  }
+  } while (0)
 
 #define GETBLINK(fx) (SLOWP(fx) ? ((FX *)(fx))->blink : LOLOC(LAddrFromNative(DUMMYBF(fx))))
 #define SETBLINK(fx, val)                        \
-  {                                              \
+  do {                                           \
     ((FX *)(fx))->blink = (val);                 \
     if (FASTP(fx)) {                             \
       ((FX *)(fx))->clink = ((FX *)(fx))->alink; \
       SLOWP(fx) = 1;                             \
     }                                            \
-  }
+  } while (0)
 
 #define GETCLINK(fx) \
   (SLOWP(fx) ? (((FX *)(fx))->clink - FRAMESIZE) : (((FX *)(fx))->alink - FRAMESIZE))
 #define SETCLINK(fx, val)                                \
-  {                                                      \
+  do {                                                   \
     ((FX *)(fx))->clink = (val) + FRAMESIZE;             \
     if (FASTP((fx))) {                                   \
       ((FX *)(fx))->blink = LAddrFromNative(DUMMYBF(fx)); \
       SLOWP(fx) = 1;                                     \
     }                                                    \
-  }
+  } while (0)
 
 #define SETACLINK(fx, val)                                                \
-  {                                                                       \
+  do {                                                                    \
     if (FASTP(fx)) { ((FX *)(fx))->blink = LAddrFromNative(DUMMYBF(fx)); } \
     ((FX *)(fx))->clink = (val) + FRAMESIZE;                              \
     ((FX *)(fx))->alink = ((FX *)(fx))->clink + 1;                        \
-  }
+  } while (0)
 
 #ifdef BIGVM
 #define SWAP_FNHEAD
@@ -364,16 +364,16 @@ typedef struct stackp {
       POINTERMASK))
 
 #define MAKEFREEBLOCK(ptr68k, size)                                   \
-  {                                                                   \
+  do {                                                                \
     if ((size) <= 0) error("creating 0 long FSP");                    \
     *((LispPTR *)(ptr68k)) = (STK_FSB_WORD << 16) | ((DLword)(size)); \
-  }
+  } while (0)
 
 #define SETUPGUARDBLOCK(ptr68k, size)                                     \
-  {                                                                       \
+  do {                                                                    \
     if ((size) <= 0) error("creating 0 long Guard block");                \
     (*((LispPTR *)(ptr68k)) = (STK_GUARD_WORD << 16) | ((DLword)(size))); \
-  }
+  } while (0)
 
 /************************************************************************/
 /*									*/
@@ -389,47 +389,47 @@ typedef struct stackp {
 #include "testtooldefs.h"
 
 #define S_CHECK(condition, msg)                          \
-  {                                                      \
+  do {                                                   \
     if (!(condition)) {                                  \
       printf("\n\nStack check failed:  %s.\n\n", (msg)); \
       error("S_Check..");                                \
     }                                                    \
-  }
+  } while (0)
 
 #define S_WARN(condition, msg, scanptr)                                                       \
-  {                                                                                           \
+  do {                                                                                           \
     if (!(condition)) { printf("\n\nStack check failed at %p:  %s.\n\n", (scanptr), (msg)); } \
-  }
+  } while (0)
 
 #define CHECK_BF(bf68k) check_BF(bf68k)
 
 #define CHECK_FX(fx68k) check_FX(fx68k)
 
 #define PreMoveFrameCheck(fx68k)                                                \
-  {                                                                             \
+  do {                                                                          \
     LispPTR *tos_on_stack;                                                      \
     if (check_stack_rooms(fx68k) > 1000) {                                      \
       warn("moveframe:there is more than 100 words SPACE for FX");              \
       printf("# When calling ");                                                \
-      tos_on_stack = (LispPTR *)Addr68k_from_StkOffset((fx68k)->nextblock - 2); \
+      tos_on_stack = (LispPTR *)NativeAligned4FromStackOffset((fx68k)->nextblock - 2); \
       print_atomname(*tos_on_stack);                                            \
       printf("\n");                                                             \
       stack_check(0);                                                           \
     }                                                                           \
-  }
+    } while (0)
 
 #else /* STACKCHECK */
 
 #define S_CHECK(condition, msg) \
-  {}
+  do {} while (0)
 #define S_WARN(condition, msg, scanptr) \
-  {}
+  do {} while (0)
 #define PreMoveFrameCheck(fx68k) \
-  {}
+  do {} while (0)
 #define CHECK_BF(bf68k) \
-  {}
+  do {} while (0)
 #define CHECK_FX(fx68k) \
-  {}
+  do {} while (0)
 
 #endif /* STACKCHECK */
 

inc/timeout.h

@@ -19,37 +19,37 @@ extern jmp_buf jmpbuf;
 extern	unsigned int TIMEOUT_TIME;
 
 #define	SETJMP(x)	\
-  {				\
+  do {				\
     if(setjmp(jmpbuf) != 0) return(x);		\
-  }
+  } while (0)
 
 #define	TIMEOUT(exp)			\
-  {			\
+  do {			\
     alarm(TIMEOUT_TIME);	\
     INTRSAFE(exp);			\
     alarm(0);		\
-  }
+  } while (0)
 
 #define	TIMEOUT0(exp)			\
-  {			\
+  do {			\
     alarm(TIMEOUT_TIME);	\
     INTRSAFE0(exp);			\
     alarm(0);		\
-  }
+  } while (0)
 
 #define	S_TOUT(exp)	\
-		alarm(TIMEOUT_TIME),\
-		(exp),			\
-		alarm(0)
+  alarm(TIMEOUT_TIME),                  \
+    (exp),                              \
+    alarm(0)
 
 #define	ERRSETJMP(rval)					\
-  {							\
+  do {							\
     if(setjmp(jmpbuf) != 0)				\
       {							\
 	*Lisp_errno = 100;				\
 	return(rval);					\
       }							\
-  }
+  } while (0)
 
 
 /************************************************************************/

inc/tosfns.h

@@ -202,9 +202,8 @@
     BCE_CURRENTFX->pc = ((UNSIGNED)PCMAC - (UNSIGNED)FuncObj) + FN_OPCODE_SIZE;        \
     FN_STACK_CHECK;                                                                    \
     {                                                                                  \
-      UNSIGNED newivar;                                                       \
-      newivar = (UNSIGNED)(IVARL = (DLword *)(CSTKPTR - (argcount) + 1));              \
-      BCE_CURRENTFX->nextblock = NEXTBLOCK = StkOffset_from_68K(newivar);              \
+      IVARL = (DLword *)(CSTKPTR - (argcount) + 1);                                    \
+      BCE_CURRENTFX->nextblock = NEXTBLOCK = StackOffsetFromNative(IVARL);             \
     }                                                                                  \
     HARD_PUSH(TOPOFSTACK); /* save TOS */                                              \
     if (LOCFNCELL->na >= 0) {                                                          \
@@ -218,7 +217,7 @@
     } /* if end */                                                                     \
     /* Set up BF */                                                                    \
     HARD_PUSH(BF_MARK32 | NEXTBLOCK);                                                  \
-    *((LispPTR *)CSTKPTR) = (FX_MARK << 16) | (StkOffset_from_68K(PVAR));              \
+    *((LispPTR *)CSTKPTR) = (FX_MARK << 16) | (StackOffsetFromNative(PVAR));              \
     ((struct frameex2 *)CSTKPTR)->fnheader = SWAP_FNHEAD(defcell_word);                \
     CSTKPTRL = (LispPTR *)(((DLword *)CSTKPTR) + FRAMESIZE);                           \
     PVARL = (DLword *)CSTKPTR;                                                         \
@@ -258,9 +257,8 @@
     BCE_CURRENTFX->pc = ((UNSIGNED)PCMAC - (UNSIGNED)FuncObj) + FNX_OPCODE_SIZE;       \
     FN_STACK_CHECK;                                                                    \
     {                                                                                  \
-      UNSIGNED newivar;                                                       \
-      newivar = (UNSIGNED)(IVARL = (DLword *)(CSTKPTR - num_args + 1));                \
-      BCE_CURRENTFX->nextblock = NEXTBLOCK = StkOffset_from_68K(newivar);              \
+      IVARL = (DLword *)(CSTKPTR - num_args + 1);                                      \
+      BCE_CURRENTFX->nextblock = NEXTBLOCK = StackOffsetFromNative(IVARL);             \
     }                                                                                  \
     HARD_PUSH(TOPOFSTACK); /* save TOS */                                              \
     if (LOCFNCELL->na >= 0) {                                                          \
@@ -274,7 +272,7 @@
     } /* if end */                                                                     \
     /* Set up BF */                                                                    \
     HARD_PUSH(BF_MARK32 | NEXTBLOCK);                                                  \
-    *((LispPTR *)CSTKPTR) = (FX_MARK << 16) | (StkOffset_from_68K(PVAR));              \
+    *((LispPTR *)CSTKPTR) = (FX_MARK << 16) | (StackOffsetFromNative(PVAR));              \
     ((struct frameex2 *)CSTKPTR)->fnheader = SWAP_FNHEAD(defcell->defpointer);         \
     CSTKPTRL = (LispPTR *)(((DLword *)CSTKPTR) + FRAMESIZE);                           \
     PVARL = (DLword *)CSTKPTR;                                                         \
@@ -372,9 +370,8 @@
       FN_STACK_CHECK;                                                                          \
       APPLY_POP_PUSH_TEST;                                                                     \
       {                                                                                        \
-        UNSIGNED newivar;                                                             \
-        newivar = (UNSIGNED)(IVARL = (DLword *)(CSTKPTR + (1 - fn_num_args - needpush)));      \
-        BCE_CURRENTFX->nextblock = NEXTBLOCK = StkOffset_from_68K(newivar);                    \
+        IVARL = (DLword *)(CSTKPTR + (1 - fn_num_args - needpush));                            \
+        BCE_CURRENTFX->nextblock = NEXTBLOCK = StackOffsetFromNative(IVARL);                   \
       }                                                                                        \
       HARD_PUSH(TOPOFSTACK); /* save TOS */                                                    \
       if (LOCFNCELL->na >= 0) {                                                                \
@@ -389,7 +386,7 @@
       /* Set up BF */                                                                          \
       HARD_PUSH(BF_MARK32 | NEXTBLOCK);                                                        \
     } /* NEXTBLOCK BLOCK */                                                                    \
-    *((LispPTR *)CSTKPTR) = (FX_MARK << 16) | (StkOffset_from_68K(PVAR));                      \
+    *((LispPTR *)CSTKPTR) = (FX_MARK << 16) | (StackOffsetFromNative(PVAR));                      \
     ((struct frameex2 *)CSTKPTR)->fnheader = SWAP_FNHEAD(defcell->defpointer);                 \
     CSTKPTRL = (LispPTR *)(((DLword *)CSTKPTR) + FRAMESIZE);                                   \
     PVARL = (DLword *)CSTKPTR;                                                                 \
@@ -441,9 +438,8 @@
     FN_STACK_CHECK;                                                       \
     CSTKPTRL -= 2;                                                        \
     {                                                                     \
-      UNSIGNED newivar;                                          \
-      newivar = (UNSIGNED)(IVARL = (DLword *)(CSTKPTR - num_args));       \
-      BCE_CURRENTFX->nextblock = NEXTBLOCK = StkOffset_from_68K(newivar); \
+      IVARL = (DLword *)(CSTKPTR - num_args);                             \
+      BCE_CURRENTFX->nextblock = NEXTBLOCK = StackOffsetFromNative(IVARL);\
     }                                                                     \
     if (LOCFNCELL->na >= 0) {                                             \
       int RESTARGS;                                              \
@@ -456,7 +452,7 @@
     } /* if end */                                                        \
     /* Set up BF */                                                       \
     HARD_PUSH(BF_MARK32 | NEXTBLOCK);                                     \
-    *((LispPTR *)CSTKPTR) = (FX_MARK << 16) | (StkOffset_from_68K(PVAR)); \
+    *((LispPTR *)CSTKPTR) = (FX_MARK << 16) | (StackOffsetFromNative(PVAR)); \
     ((struct frameex2 *)CSTKPTR)->fnheader = SWAP_FNHEAD(Fn_DefCell);     \
     CSTKPTRL = (LispPTR *)(((DLword *)CSTKPTR) + FRAMESIZE);              \
     PVARL = (DLword *)CSTKPTR;                                            \

inc/version.h

@@ -218,17 +218,6 @@ typedef intptr_t INT;
 
 
 
-	/********************************************************/
-	/*							*/
-	/********************************************************/
-#ifdef OS5
-		/* Solaris, sort of SYSV-ish, but not really */
-#define MAIKO_ENABLE_ETHERNET
-#endif /* OS5 */
-
-
-
-
 	/********************************************************/
 	/*							*/
 	/********************************************************/

src/bbtsub.c

@@ -75,10 +75,12 @@ extern IOPAGE *IOPage68K;
 extern int  kbd_for_makeinit;
 
 #define init_kbd_startup   \
-  if (!kbd_for_makeinit) { \
+  do {			   \
+    if (!kbd_for_makeinit) { \
     init_keyboard(0);      \
     kbd_for_makeinit = 1;  \
-  };
+    }                      \
+  } while (0)
 #endif
 
 #include "devif.h"
@@ -579,7 +581,7 @@ LispPTR n_new_cursorin(DLword *baseaddr, int dx, int dy, int w, int h) {
 
 #define BITBLTBITMAP_argnum 14
 #define PUNT_TO_BITBLTBITMAP                                                                  \
-  {                                                                                           \
+  do {                                                                                           \
     if (BITBLTBITMAP_index == 0xffffffff) {                                                   \
       BITBLTBITMAP_index = get_package_atom("\\PUNT.BITBLT.BITMAP", 19, "INTERLISP", 9, NIL); \
       if (BITBLTBITMAP_index == 0xffffffff) {                                                 \
@@ -590,7 +592,7 @@ LispPTR n_new_cursorin(DLword *baseaddr, int dx, int dy, int w, int h) {
     CurrentStackPTR += (BITBLTBITMAP_argnum - 1) * DLWORDSPER_CELL;                           \
     ccfuncall(BITBLTBITMAP_index, BITBLTBITMAP_argnum, 3);                                    \
     return (ATOM_T);                                                                               \
-  }
+  } while (0)
 
 LispPTR BITBLTBITMAP_index;
 /************************************************************************/
@@ -856,7 +858,7 @@ bad_arg:
 
 #define BLTSHADEBITMAP_argnum 8
 #define PUNT_TO_BLTSHADEBITMAP                                                                    \
-  {                                                                                               \
+  do {                                                                                               \
     if (BLTSHADEBITMAP_index == 0xffffffff) {                                                     \
       BLTSHADEBITMAP_index = get_package_atom("\\PUNT.BLTSHADE.BITMAP", 21, "INTERLISP", 9, NIL); \
       if (BLTSHADEBITMAP_index == 0xffffffff) {                                                   \
@@ -867,7 +869,7 @@ bad_arg:
     CurrentStackPTR += (BLTSHADEBITMAP_argnum - 1) * DLWORDSPER_CELL;                             \
     ccfuncall(BLTSHADEBITMAP_index, BLTSHADEBITMAP_argnum, 3);                                    \
     return (ATOM_T);                                                                                   \
-  }
+  } while (0)
 
 LispPTR BLTSHADEBITMAP_index;
 
@@ -1195,7 +1197,7 @@ void bltchar(LispPTR *args)
   bitblt(srcbase, dstbase, sx, dx, w, h, srcbpl, dstbpl, backwardflg, src_comp, op, gray, num_gray,
          curr_gray_line);
 #else
-  new_char_bitblt_code
+  new_char_bitblt_code;
 #endif
 
 #ifdef DISPLAYBUFFER
@@ -1238,7 +1240,7 @@ void bltchar(LispPTR *args)
 #define BLTCHAR_argnum 3
 #ifndef INIT
 #define PUNT_TO_BLTCHAR                                                                 \
-  {                                                                                     \
+  do {                                                                                     \
     if ((BLTCHAR_index == 0)) {                                                         \
       BLTCHAR_index = get_package_atom("\\MAIKO.PUNTBLTCHAR", 18, "INTERLISP", 9, NIL); \
       if (BLTCHAR_index == 0xffffffff) {                                                \
@@ -1249,10 +1251,10 @@ void bltchar(LispPTR *args)
     CurrentStackPTR += (BLTCHAR_argnum - 1) * DLWORDSPER_CELL;                          \
     ccfuncall(BLTCHAR_index, BLTCHAR_argnum, 3);                                        \
     return;                                                                             \
-  }
+  } while (0)
 #else
 #define PUNT_TO_BLTCHAR                                                                 \
-  { /* Version that is silent instead of erroring for init */                           \
+  do { /* Version that is silent instead of erroring for init */                           \
     if ((BLTCHAR_index == 0)) {                                                         \
       BLTCHAR_index = get_package_atom("\\MAIKO.PUNTBLTCHAR", 18, "INTERLISP", 9, NIL); \
       if (BLTCHAR_index == 0xffffffff) {                                                \
@@ -1263,12 +1265,12 @@ void bltchar(LispPTR *args)
     CurrentStackPTR += (BLTCHAR_argnum - 1) * DLWORDSPER_CELL;                          \
     ccfuncall(BLTCHAR_index, BLTCHAR_argnum, 3);                                        \
     return;                                                                             \
-  }
+  } while (0)
 #endif /* INIT */
 
 #define TEDIT_BLTCHAR_argnum 6
 #define PUNT_TO_TEDIT_BLTCHAR                                                             \
-  {                                                                                       \
+  do {                                                                                       \
     if (TEDIT_BLTCHAR_index == 0xffffffff) {                                              \
       TEDIT_BLTCHAR_index = get_package_atom("\\TEDIT.BLTCHAR", 14, "INTERLISP", 9, NIL); \
       if (TEDIT_BLTCHAR_index == 0xffffffff) {                                            \
@@ -1279,10 +1281,10 @@ void bltchar(LispPTR *args)
     CurrentStackPTR += (TEDIT_BLTCHAR_argnum - 1) * DLWORDSPER_CELL;                      \
     ccfuncall(TEDIT_BLTCHAR_index, TEDIT_BLTCHAR_argnum, 3);                              \
     return;                                                                               \
-  }
+  } while (0)
 
 #define FGetNum(ptr, place)                     \
-  {                                             \
+  do {                                          \
     if (((ptr)&SEGMASK) == S_POSITIVE) {        \
       (place) = ((ptr)&0xffff);                 \
     } else if (((ptr)&SEGMASK) == S_NEGATIVE) { \
@@ -1290,9 +1292,9 @@ void bltchar(LispPTR *args)
     } else {                                    \
       PUNT_TO_BLTCHAR;                          \
     }                                           \
-  }
+  } while (0)
 #define FGetNum2(ptr, place)                    \
-  {                                             \
+  do {                                          \
     if (((ptr)&SEGMASK) == S_POSITIVE) {        \
       (place) = ((ptr)&0xffff);                 \
     } else if (((ptr)&SEGMASK) == S_NEGATIVE) { \
@@ -1300,7 +1302,7 @@ void bltchar(LispPTR *args)
     } else {                                    \
       return (-1);                              \
     }                                           \
-  }
+  } while (0)
 
 LispPTR *TOPWDS68k;          /* Top of window stack's DS */
 LispPTR BLTCHAR_index;       /* Atom # for \PUNTBLTCHAR punt fn */
@@ -1406,7 +1408,7 @@ void newbltchar(LispPTR *args) {
   bitblt(srcbase, dstbase, sx, dx, w, h, srcbpl, dstbpl, backwardflg, src_comp, op, gray, num_gray,
          curr_gray_line);
 #else
-  new_char_bitblt_code
+  new_char_bitblt_code;
 #endif
 
 #ifdef DISPLAYBUFFER

src/bitblt.c

@@ -82,7 +82,7 @@ LispPTR N_OP_pilotbitblt(LispPTR pilot_bt_tbl, LispPTR tos)
   if (!kbd_for_makeinit) {
     init_keyboard(0);
     kbd_for_makeinit = 1;
-  };
+  }
 
 #endif
 
@@ -122,7 +122,7 @@ LispPTR N_OP_pilotbitblt(LispPTR pilot_bt_tbl, LispPTR tos)
   ;
 #endif /* SUNDISPLAY / DOS */
 
-  new_bitblt_code
+  new_bitblt_code;
 
 #if   DOS
       flush_display_lineregion(dx, dstbase, w, h);

src/byteswap.c

@@ -19,33 +19,18 @@
 /*                                                                         */
 /***************************************************************************/
 
+#include <arpa/inet.h>
 #include "byteswapdefs.h"
 #include "lsptypes.h"
 
-/****************************************************************/
-/*                                                              */
-/*            Byte-swap a region wordcount words long           */
-/*            This does NOT swap words in a long-word!          */
-/*                                                              */
-/****************************************************************/
-void byte_swap_page(unsigned short *page, int wordcount) {
-  int i;
-  for (i = 0; i < wordcount; i++) { *(page + i) = byte_swap_word(*(page + i)); }
-}
-
 /****************************************************************/
 /*                                                              */
 /*     Byte- & word-swap a region wordcount long-words long     */
 /*                                                              */
 /****************************************************************/
 void word_swap_page(unsigned short *page, int longwordcount) {
-  int i;
-  unsigned int *longpage;
-  longpage = (unsigned int *)page;
-  for (i = 0; i < (longwordcount + longwordcount); i++) {
-    *(page + i) = byte_swap_word(*(page + i));
-  }
-  for (i = 0; i < longwordcount; i++) { *(longpage + i) = swapx(*(longpage + i)); }
+  unsigned int *longpage = (unsigned int *)page;
+  for (int i = 0; i < longwordcount; i++) { *(longpage + i) = ntohl(*(longpage + i)); }
 }
 
 /****************************************************************/

src/dbgtool.c

@@ -65,23 +65,27 @@ jmp_buf BT_jumpbuf;
 #define BTMAXLINE 24
 /* DOS has a 25-line screen, and getchar discards ESC for some reason */
 #define BT_morep                                              \
-  if ((BT_temp != '!') && (++BT_lines > BTMAXLINE)) {         \
-    printf("Press Return(Esc & Ret to quit, ! don't stop):"); \
-    BT_temp = getch();                                        \
-    fflush(stdin);                                            \
-    BT_lines = 0;                                             \
-    if (BT_temp == 27) longjmp(BT_jumpbuf, 1);                \
-  }
+  do {                                              	      \
+    if ((BT_temp != '!') && (++BT_lines > BTMAXLINE)) {         \
+      printf("Press Return(Esc & Ret to quit, ! don't stop):"); \
+      BT_temp = getch();                                        \
+      fflush(stdin);                                            \
+      BT_lines = 0;                                             \
+      if (BT_temp == 27) longjmp(BT_jumpbuf, 1);                \
+    }                                                           \
+  } while (0)
 #else /* DOS */
 #define BTMAXLINE 30
 #define BT_morep                                  \
-  if (++BT_lines > BTMAXLINE) {                   \
-    printf("Press Return(to quit Esc and Ret):"); \
-    BT_temp = getchar();                          \
-    fflush(stdin);                                \
-    BT_lines = 0;                                 \
-    if (BT_temp == 27) longjmp(BT_jumpbuf, 1);    \
-  }
+  do {                                            \
+    if (++BT_lines > BTMAXLINE) {                   \
+      printf("Press Return(to quit Esc and Ret):"); \
+      BT_temp = getchar();                          \
+      fflush(stdin);                                \
+      BT_lines = 0;                                 \
+      if (BT_temp == 27) longjmp(BT_jumpbuf, 1);    \
+    }                                               \
+  } while (0)
 #endif /* DOS */
 
 /***************************************************************/

src/dir.c

@@ -69,7 +69,7 @@ extern int Dummy_errno;
  */
 
 #define SetupMatch(tname, pname, text, pext, tver)   \
-  {                                                  \
+  do {                                                  \
     char *pp;                               \
                                                      \
     separate_version(tname, tver, 0);                \
@@ -87,10 +87,10 @@ extern int Dummy_errno;
       *pp = '\0';                                    \
       strcpy(pext, pp + 1);                          \
     }                                                \
-  }
+  } while (0)
 
 #define MatchP(target, name, ver, matchtag, unmatchtag)                                       \
-  {                                                                                           \
+  do {                                                                                           \
     char tname[MAXNAMLEN], text[MAXNAMLEN], tver[VERSIONLEN];                                 \
     char pname[MAXNAMLEN], pext[MAXNAMLEN];                                                   \
                                                                                               \
@@ -105,10 +105,10 @@ extern int Dummy_errno;
       goto matchtag; /* NOLINT(bugprone-macro-parentheses) */                                 \
     else                                                                                      \
       goto unmatchtag; /* NOLINT(bugprone-macro-parentheses) */                               \
-  }
+  } while (0)
 
 #define MatchP_Case(target, name, ver, matchtag, unmatchtag)                                  \
-  {                                                                                           \
+  do {                                                                                           \
     char tname[MAXNAMLEN], text[MAXNAMLEN], tver[VERSIONLEN];                                 \
     char pname[MAXNAMLEN], pext[MAXNAMLEN];                                                   \
                                                                                               \
@@ -121,7 +121,7 @@ extern int Dummy_errno;
       goto matchtag; /* NOLINT(bugprone-macro-parentheses) */                                 \
     else                                                                                      \
       goto unmatchtag; /* NOLINT(bugprone-macro-parentheses) */                               \
-  }
+  } while (0)
 
 /*
  * Name:	match_pattern
@@ -232,7 +232,7 @@ int MAXFINFO;
 #define FINFOARRAYRSIZE 16
 
 #define AllocFinfo(fp)                                                   \
-  {                                                                      \
+  do {                                                                      \
     if (FreeFinfoList != (FINFO *)NULL) {                                \
       (fp) = FreeFinfoList;                                                \
       FreeFinfoList = (fp)->next;                                          \
@@ -242,15 +242,15 @@ int MAXFINFO;
       free(fp);                                                          \
       (fp) = (FINFO *)NULL;                                                \
     }                                                                    \
-  }
+  } while (0)
 
 #define FreeFinfo(fp)                                                      \
-  {                                                                        \
+  do {                                                                        \
     FINFO *lastp;                                                 \
     for (lastp = fp; lastp->next != (FINFO *)NULL; lastp = lastp->next) {} \
     lastp->next = FreeFinfoList;                                           \
     FreeFinfoList = fp;                                                    \
-  }
+  } while (0)
 
 
 /*

src/doskbd.c

@@ -85,10 +85,10 @@ extern LispPTR *KEYBUFFERING68k;
 /*  of the handler, so let's do it once, correctly.)  */
 /******************************************************/
 #define ENABLE_KBD                                               \
-  {                                                              \
+  do {                                                              \
     outp(INTA00, ENDOFINTERRUPT);                                \
     outp(KBD_COMMAND_PORT, KBD_ENABLE); /* Turn kbd on again. */ \
-  }
+  } while (0)
 
 /************************************************************************/
 /*                                                                      */

src/dosmouse.c

@@ -302,13 +302,13 @@ dostaking_mouse_up(int newx, int newy)
     currentmouse->Cursor.Last.width = w = currentdsp->Display.width - newx;
   } else {
     currentmouse->Cursor.Last.width = w = 16;
-  };
+  }
 
   if (currentdsp->Display.height < (newy + 16)) {
     currentmouse->Cursor.Last.height = h = currentdsp->Display.height - newy;
   } else {
     currentmouse->Cursor.Last.height = h = 16;
-  };
+  }
 
   srcbpl = currentdsp->Display.width;
   dstbpl = 16;

src/dsk.c

@@ -2811,7 +2811,7 @@ static int make_directory(char *dir)
  */
 #ifdef DOS
 #define FindHighestVersion(varray, mentry, max_no)                                         \
-  {                                                                                        \
+  do {                                                                                        \
     FileName *centry;                                                             \
     for (centry = varray, max_no = -1; centry->version_no != LASTVERSIONARRAY; centry++) { \
       if (centry->version_no > max_no) {                                                   \
@@ -2819,10 +2819,10 @@ static int make_directory(char *dir)
         mentry = centry;                                                                   \
       }                                                                                    \
     }                                                                                      \
-  }
+    } while (0)
 #else
 #define FindHighestVersion(varray, mentry, max_no)                                        \
-  {                                                                                       \
+  do {                                                                                       \
     FileName *centry;                                                            \
     for (centry = (varray), (max_no) = 0; centry->version_no != LASTVERSIONARRAY; centry++) { \
       if (centry->version_no > (max_no)) {                                                  \
@@ -2830,7 +2830,7 @@ static int make_directory(char *dir)
         (mentry) = centry;                                                                  \
       }                                                                                   \
     }                                                                                     \
-  }
+    } while (0)
 #endif /* DOS */
 
 /*
@@ -2859,7 +2859,7 @@ static int make_directory(char *dir)
  */
 #ifdef DOS
 #define FindLowestVersion(varray, mentry, min_no)                                                  \
-  {                                                                                                \
+  do {                                                                                                \
     FileName *centry;                                                                     \
     for (centry = varray, min_no = MAXVERSION; centry->version_no != LASTVERSIONARRAY; centry++) { \
       if (centry->version_no < min_no) {                                                           \
@@ -2867,10 +2867,10 @@ static int make_directory(char *dir)
         mentry = centry;                                                                           \
       }                                                                                            \
     }                                                                                              \
-  }
+    } while (0)
 #else
 #define FindLowestVersion(varray, mentry, min_no)                                                  \
-  {                                                                                                \
+  do {                                                                                                \
     FileName *centry;                                                                     \
     for (centry = (varray), (min_no) = MAXVERSION; centry->version_no != LASTVERSIONARRAY; centry++) { \
       if (centry->version_no < (min_no) && centry->version_no != 0) {                                \
@@ -2878,7 +2878,7 @@ static int make_directory(char *dir)
         (mentry) = centry;                                                                           \
       }                                                                                            \
     }                                                                                              \
-  }
+  } while (0)
 #endif /* DOS */
 
 /*
@@ -2906,7 +2906,7 @@ static int make_directory(char *dir)
  */
 
 #define FindSpecifiedVersion(varray, sentry, ver_no)                        \
-  {                                                                         \
+  do {                                                                         \
     FileName *centry;                                              \
                                                                             \
     (sentry) = (FileName *)NULL;                                              \
@@ -2915,7 +2915,7 @@ static int make_directory(char *dir)
         (sentry) = centry;                                                    \
         break;                                                              \
       }                                                                     \
-  }
+  } while (0)
 
 /************************************************************************/
 /*									*/

src/dspsubrs.c

@@ -165,12 +165,12 @@ void flip_cursor() {
      except those who want to try building loadups.  */
 
   if (!for_makeinit) {
-    for (cnt = CURSORHEIGHT; (cnt--);) { GETWORD(word++) ^= 0xFFFF; };
-  };
+    for (cnt = CURSORHEIGHT; (cnt--);) { GETWORD(word++) ^= 0xFFFF; }
+  }
 
 #else
 
-  for (cnt = CURSORHEIGHT; (cnt--);) { GETWORD(word++) ^= 0xFFFF; };
+  for (cnt = CURSORHEIGHT; (cnt--);) { GETWORD(word++) ^= 0xFFFF; }
 
 #endif
 

src/ejlisp.c

@@ -37,7 +37,7 @@
 #define CHAR_SIZE CHAR_MAXLEN *(sizeof(char) / sizeof(int))
 
 #define LStringToCString(Lisp, C, MaxLen, Len)                                                     \
-  {                                                                                                \
+  do {                                                                                                \
     OneDArray *arrayp;                                                                             \
     char *base;                                                                                    \
     short *sbase;                                                                                  \
@@ -64,10 +64,10 @@
                                                                                                    \
       default: error("LStringToCString can not handle\n");                                         \
     }                                                                                              \
-  }
+  } while (0)
 
 #define CStringToLString(C, Lisp, Len)                                                             \
-  {                                                                                                \
+  do {                                                                                                \
     OneDArray *arrayp;                                                                             \
     char *base;                                                                                    \
     short *sbase;                                                                                  \
@@ -93,18 +93,18 @@
                                                                                                    \
       default: error("CStringToLString can not handle\n");                                         \
     }                                                                                              \
-  }
+  } while (0)
 
 #define IntToFixp(C, Lisp)                                \
-  {                                                       \
+  do {                                                       \
     int *base;                                            \
                                                           \
     base = (int *)NativeAligned4FromLAddr((unsigned int)Lisp); \
     *base = C;                                            \
-  }
+  } while (0)
 
 #define ZeroFix(C)                                       \
-  {                                                      \
+  do {                                                      \
     int k, j;                                            \
                                                          \
     if (C[0] == 0 && C[1] != 0) {                        \
@@ -113,15 +113,15 @@
       }                                                  \
       C[j] = 0;                                          \
     }                                                    \
-  }
+  } while (0)
 
 #define EJLISP_SETJMP(x)       \
-  {                            \
+  do {                            \
     if (setjmp(jmpbuf) != 0) { \
       ejlisp_buf = NULL;       \
       return (x);              \
     }                          \
-  }
+  } while (0)
 
 typedef struct first_array {
   unsigned int orig : 1;

src/eqf.c

@@ -64,12 +64,14 @@ BIGNUM  (integer that can't be represented bigger than 32 bits)
 */
 
 #define IF_IMMEDIATE(arg, doit, doitsmall)                                 \
-  switch (SEGMASK & (arg)) {                                               \
-    case ATOM_OFFSET: doit;       /* NOLINT(bugprone-macro-parentheses) */ \
-    case S_CHARACTER: doit;       /* NOLINT(bugprone-macro-parentheses) */ \
-    case S_POSITIVE: doitsmall;   /* NOLINT(bugprone-macro-parentheses) */ \
-    case S_NEGATIVE: doitsmall;   /* NOLINT(bugprone-macro-parentheses) */ \
-  }
+  do {                                                                     \
+    switch (SEGMASK & (arg)) {                                             \
+      case ATOM_OFFSET: doit;       /* NOLINT(bugprone-macro-parentheses) */ \
+      case S_CHARACTER: doit;       /* NOLINT(bugprone-macro-parentheses) */ \
+      case S_POSITIVE: doitsmall;   /* NOLINT(bugprone-macro-parentheses) */ \
+      case S_NEGATIVE: doitsmall;   /* NOLINT(bugprone-macro-parentheses) */ \
+    }                                                                      \
+  } while (0)
 
 /************************************************************************/
 /*									*/

src/ether_common.c

@@ -0,0 +1,204 @@
+/* $Id: ether.c,v 1.4 2001/12/24 01:09:02 sybalsky Exp $ (C) Copyright Venue, All Rights Reserved */
+
+/************************************************************************/
+/*									*/
+/*	(C) Copyright 1989-1996 inclusive Venue. All Rights Reserved.	*/
+/*	Manufactured in the United States of America.			*/
+/*									*/
+/************************************************************************/
+
+#include "version.h"
+
+#include <unistd.h>
+#include <sys/types.h>
+
+#include "lsptypes.h"
+#include "lspglob.h"
+#include "adr68k.h"
+
+/*
+ * global variables exported to ether_*.c and possibly others
+ */
+
+int     ether_fd      = -1;    /* file descriptor for ether socket */
+
+u_char  ether_host[6] = {0, 0, 0, 0, 0, 0}; /* 48 bit address of this node */
+u_char  broadcast[6]  = {255, 255, 255, 255, 255, 255};
+
+int     ether_bsize   = 0;     /* if nonzero then a receive is pending */
+u_char *ether_buf     = NULL;  /* address of receive buffer */
+
+int     ETHEREventCount = 0;
+
+
+/*
+ * public procedures
+ */
+
+/************************************************************************/
+/*              i n i t _ i f p a g e _ e t h e r                       */
+/*                                                                      */
+/*      sets Lisp's idea of \my.nsaddress. Clears it if ether not       */
+/*      enabled                                                         */
+/*                                                                      */
+/************************************************************************/
+
+void init_ifpage_ether() {
+  InterfacePage->nshost0 = (DLword)((ether_host[0] << 8) + ether_host[1]);
+  InterfacePage->nshost1 = (DLword)((ether_host[2] << 8) + ether_host[3]);
+  InterfacePage->nshost2 = (DLword)((ether_host[4] << 8) + ether_host[5]);
+}
+
+#define MASKWORD1 0xffff
+
+/************************************************************************/
+/*									*/
+/*			c h e c k _ s u m				*/
+/*									*/
+/*	Implements the CHECKSUM opcode; compute the checksum for an	*/
+/*	ethernet packet.						*/
+/*									*/
+/*	args[0] LispPTR base;						*/
+/*	args[1] LispPTR nwords;						*/
+/*	args[2] LispPTR initsum;					*/
+/*									*/
+/*									*/
+/************************************************************************/
+
+LispPTR check_sum(LispPTR *args)
+{
+  LispPTR checksum;
+  DLword *address;
+  int nwords;
+
+  address = (DLword *)NativeAligned2FromLAddr(*args++);
+  nwords = *args++;
+
+  if (*args != NIL)
+    checksum = (*args) & MASKWORD1;
+  else
+    checksum = 0;
+
+  for (; nwords > (S_POSITIVE); address++, nwords--) {
+    checksum = checksum + GETWORD(address);
+    if (checksum > 0xffff) checksum = (checksum & 0xffff) + 1; /* add carry */
+
+    if (checksum > 0x7fff) /* ROTATE LEFT 1 */
+      checksum = ((checksum & 0x7fff) << 1) | 1;
+    else
+      checksum = checksum << 1;
+  }
+
+  if (checksum == MASKWORD1)
+    return (S_POSITIVE); /* ret 0 */
+  else
+    return (S_POSITIVE | checksum);
+
+} /*check_sum */
+
+
+/*
+ * dummy implementation of SUBRs if none of the networking options is compiled in
+ */
+
+
+#if !defined(MAIKO_ENABLE_ETHERNET) && !defined(MAIKO_ENABLE_NETHUB)
+
+
+/************************************************************************/
+/*                                                                      */
+/*                      e t h e r _ s u s p e n d                       */
+/*                                                                      */
+/*      Suspend receiving packets.                                      */
+/*      175/70/0                                                        */
+/*                                                                      */
+/************************************************************************/
+LispPTR ether_suspend(LispPTR args[])
+{
+  return (ATOM_T);
+}
+
+
+/************************************************************************/
+/*                                                                      */
+/*                      e t h e r _ r e s u m e                         */
+/*                                                                      */
+/*      resume nit socket to receive all types of packets 175/71/0      */
+/*                                                                      */
+/************************************************************************/
+LispPTR ether_resume(LispPTR args[])
+{
+  return (ATOM_T);
+}
+
+/************************************************************************/
+/*                                                                      */
+/*                      e t h e r _ c t r l r                           */
+/*                                                                      */
+/*      return T if ether controller is available 175/72/0              */
+/*                                                                      */
+/************************************************************************/
+LispPTR ether_ctrlr(LispPTR args[])
+{
+  return (NIL);
+}
+/**********************************************************************
+ *      ether_reset(args) 175/73/0
+ *      reset ether controller and disable receipt of packets
+ **********************************************************************/
+LispPTR ether_reset(LispPTR args[])
+{
+  return (NIL);
+}
+/************************************************************************/
+/*                                                                      */
+/*                        e t h e r _ g e t (175/74/2)                  */
+/*                                                                      */
+/*      Set up the Ethernet driver to receive a packet.  The driver     */
+/*      first tries to read any pending packet from the net, and if     */
+/*      there is one, ether_get returns T.  If there is no pending      */
+/*      packet, the failing read sets us up to get an interrupt when    */
+/*      a packet DOES arrive, and ether_get returns NIL.                */
+/*                                                                      */
+/*              args[0] Length of the buffer we're passed               */
+/*              args[1] LISP address of a packet buffer                 */
+/*                                                                      */
+/*      sets ether_buf to the buffer address, for check_ether's use     */
+/*      sets ether_bsize to the buffer size.  ether_bsize>0 means       */
+/*      it's OK to read packets from the network on interrupt.          */
+/*                                                                      */
+/************************************************************************/
+LispPTR ether_get(LispPTR args[])
+{
+  return (NIL);
+}
+
+/**********************************************************************
+ *      ether_send(args) 175/75/2 max_words,buffer_addr
+ *      send a packet
+ **********************************************************************/
+LispPTR ether_send(LispPTR args[])
+{
+  return (NIL);
+}
+
+/**********************************************************************
+ *      ether_setfilter(args) 175/76/1 filterbits
+ *      check whether a packet has come. if does, notify iocb
+ **********************************************************************/
+LispPTR ether_setfilter(LispPTR args[])
+{
+  return (NIL);
+}
+
+
+/**********************************************************************
+ *      check_ether() 175/77/0
+ *      checks an incoming packet
+ **********************************************************************/
+LispPTR check_ether()
+{
+  return (NIL);
+}
+
+#endif

src/ether_nethub.c

@@ -0,0 +1,577 @@
+/*******************************************************************************/
+/*                                                                             */
+/* Support for Dodo Nethub networking (see: https://github.com/devhawala/dodo) */
+/*                                                                             */
+/* Copyright (c) 2022, Dr. Hans-Walter Latz. All rights reserved.              */
+/* Released to the Public Domain.                                              */
+/*                                                                             */
+/*******************************************************************************/
+
+#if defined(MAIKO_ENABLE_NETHUB) && !defined(MAIKO_ENABLE_ETHERNET)
+
+#include "version.h"
+
+#include <string.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <sys/poll.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <netdb.h>
+#include <netinet/in.h>
+
+#include "commondefs.h"
+#include "lispemul.h"
+#include "lispmap.h"
+#include "emlglob.h"
+#include "lsptypes.h"
+#include "lspglob.h"
+#include "adr68k.h"
+#include "ether.h"
+#include "dbprint.h"
+#include "etherdefs.h"
+#include "ifpage.h"
+#include "iopage.h"
+#include "byteswapdefs.h"
+#include "dbprint.h"
+#include "timerdefs.h"
+#include "lisp2cdefs.h"
+
+/*
+**  --- ether implementation common data -------------------------------------------
+*/
+
+extern int      ether_fd;      /* file descriptor for ether socket */
+extern u_char   ether_host[6]; /* 48 bit address of this node */
+extern u_char   broadcast[6];
+extern int      ether_bsize;   /* if nonzero then a receive is pending */
+extern u_char  *ether_buf;     /* address of receive buffer */
+extern LispPTR *PENDINGINTERRUPT68k;
+extern fd_set   LispReadFds;
+
+/*
+**  --- nethub configuration data --------------------------------------------------
+*/
+
+static char* nethubHost = NULL;
+static int   nethubPort = 3333;
+static int   mac0 = 0xCA;
+static int   mac1 = 0xFF;
+static int   mac2 = 0xEE;
+static int   mac3 = 0x12;
+static int   mac4 = 0x34;
+static int   mac5 = 0x56;
+
+void setNethubHost(char* host) {
+  if (host && *host) {
+    nethubHost = host;
+    DBPRINT(("nh :: host now: '%s'\n", nethubHost));
+  }
+}
+
+void setNethubPort(int port) {
+  if (port > 0 && port <= 65535) {
+    nethubPort = port;
+    DBPRINT(("nh :: port now: %d\n", nethubPort));
+  }
+}
+
+void setNethubMac(int m0, int m1, int m2, int m3, int m4, int m5) {
+  if (   m0 >= 0 && m0 <= 255
+      && m1 >= 0 && m1 <= 255
+      && m2 >= 0 && m2 <= 255
+      && m3 >= 0 && m3 <= 255
+      && m4 >= 0 && m4 <= 255
+      && m5 >= 0 && m5 <= 255) {
+    mac0 = m0;
+    mac1 = m1;
+    mac2 = m2;
+    mac3 = m3;
+    mac4 = m4;
+    mac5 = m5;
+    DBPRINT(("nh :: mac now: %02X-%02X-%02X-%02X-%02X-%02X\n", mac0, mac1, mac2, mac3, mac4, mac5));
+  }
+}
+
+/*
+**  --- very simple logging --------------------------------------------------------
+*/
+
+static int loglevel = 0;
+static int logcnt = 0;
+
+void setNethubLogLevel(int ll) {
+  loglevel = ll;
+  DBPRINT(("nh :: loglevel now: %d\n", loglevel));
+}
+
+#define log_info(line) { if (loglevel == 1) \
+	{ printf("nh-info[%d]: ", logcnt++); printf line; }}
+#define log_debug(line) { if (loglevel >= 2) \
+	{ printf("nh-debug[%d]: ", logcnt++); printf line; }}
+#define log_all(line) { if (loglevel < 1) \
+	{ printf("nh[%d]: ", logcnt++); printf line; }}
+
+/*
+**  --- utilities ------------------------------------------------------------------
+*/
+
+#define LONG_PTR_MASK ((long)(~((long)3)))
+
+static void dblwordsSwap(u_char* basePtr, int forBytes) {
+  u_char* dblwordPtr = (u_char*)((long)basePtr & LONG_PTR_MASK);
+  int neededBytes = forBytes + (basePtr - dblwordPtr);
+  int dblwordCount = (neededBytes + 3) / 4;
+  word_swap_page((unsigned short*)dblwordPtr, dblwordCount);
+}
+
+/*
+**  --- connect, disconnect and transmit packets -----------------------------------
+*/
+
+void connectToHub() {
+  if (nethubHost == NULL) {
+    return;
+  }
+  if (ether_fd > -1) {
+    return;
+  }
+
+  log_debug(("connectToHub() - begin\n"));
+
+  ether_host[0] = mac0;
+  ether_host[1] = mac1;
+  ether_host[2] = mac2;
+  ether_host[3] = mac3;
+  ether_host[4] = mac4;
+  ether_host[5] = mac5;
+
+  log_debug(("  resolving nethub hostname\n"));
+
+  struct hostent *host = gethostbyname(nethubHost);
+  if (host == NULL || host->h_addr_list == NULL) {
+    log_debug(("connectToHub(): hostname '%s' cannot be resolved\n", nethubHost));
+    log_info(("connectToHub(): hostname '%s' cannot be resolved\n", nethubHost));
+    log_all(("connectToHub(): hostname '%s' cannot be resolved\n", nethubHost));
+    return;
+  }
+
+  log_debug(("  connecting to nethub\n"));
+
+  struct sockaddr_in hubaddr;
+  hubaddr.sin_family = AF_INET;
+  hubaddr.sin_addr.s_addr = *(in_addr_t *)host->h_addr_list[0];
+  hubaddr.sin_port = htons(nethubPort);
+
+  ether_fd = socket(AF_INET, SOCK_STREAM, 0);
+  if (ether_fd < 0) {
+    log_info(("connectToHub(): FAILED to create AF_INET/SOCK_STREAM socket\n"));
+    return;
+  }
+
+  if (connect(ether_fd, (struct sockaddr*)&hubaddr, sizeof(hubaddr)) < 0) {
+    perror("connectToHub() - connect failed");
+    close(ether_fd);
+    ether_fd = -1;
+    log_info(("connectToHub(): FAILED to connect to nethub\n"));
+    return;
+  }
+  log_debug(("  connected to nethub, ether_fd = %d\n", ether_fd));
+
+  FD_SET(ether_fd, &LispReadFds);
+  log_debug(("  added ether_fd to LispReadFds\n"));
+
+  log_debug(("connectToHub() - end\n\n"));
+  log_info(("connectToHub() - connected to nethub\n"));
+  log_all(("connectToHub() - connected to nethub\n"));
+}
+
+static void disconnectFromHub() {
+  if (ether_fd > -1) {
+    close(ether_fd);
+    ether_fd = -1;
+    log_debug(("disconnectFromHub() - disconnected from nethub\n"));
+    log_info(("disconnectFromHub() - disconnected from nethub\n"));
+    log_all(("disconnectFromHub() - disconnected from nethub\n"));
+  }
+}
+
+
+
+/* Input:
+ *    ether_fd: fd to read Nethub format packets from
+ *    ether_bsize: size of ether_buf storage
+ * Output:
+ *    ether_buf: buffer to copy XIP packet into
+ *    ether_bsize: set to 0 if packet returned
+ * Returns:
+ *    -1: failed/not connected
+ *     0: no packet available
+ *    >0: number of bytes received and placed in ether_buf
+ */
+
+static int recvPacket() {
+  int rcvLen;
+  unsigned short bLen;
+
+  if (ether_fd < 0) {
+    log_debug(("  recvPacket() :: not connected to hub !!!\n"));
+    return -1;
+  }
+
+  if (ether_bsize < 1) {
+    log_debug(("  recvPacket() :: no receive buffer present -> return 0\n"));
+    return 0;
+  }
+
+  /* start by reading the (network byte order) short value indicating the size of the
+   * XIP packet being received
+   */
+  rcvLen = recv(ether_fd, &bLen, sizeof(bLen), MSG_DONTWAIT);
+  if (rcvLen < 0 && errno != EAGAIN && errno != EWOULDBLOCK) {
+    perror("recvPacket() :: recv(ether_fd, &bLen, sizeof(bLen), MSG_DONTWAIT)");
+    disconnectFromHub();
+    return -1;
+  }
+  if (rcvLen <= 0) {
+    log_debug(("  recvPacket() :: no network packet available -> return 0\n"));
+    return 0;
+  }
+
+  bLen = ntohs(bLen);
+  log_debug(("  recvPacket() :: received %d bytes, logical packet length = %d bytes\n", rcvLen, bLen));
+
+  if (bLen & 0x0001) {
+    log_debug(("recvPacket() ERROR :: odd byte length of logical packet -> disconnecting from nethub\n"));
+    log_info(("recvPacket() ERROR :: odd byte length of logical packet -> disconnecting from nethub\n"));
+    log_all(("recvPacket() ERROR :: odd byte length of logical packet -> disconnecting from nethub\n"));
+    disconnectFromHub();
+    return -1;
+  }
+  if (bLen > ether_bsize) {
+    log_debug(("  recvPacket() ERROR :: logical packet larger than buffer -> disconnecting from nethub\n"));
+    log_info(("recvPacket() ERROR :: logical packet larger than buffer -> disconnecting from nethub\n"));
+    log_all(("recvPacket() ERROR :: logical packet larger than buffer -> disconnecting from nethub\n"));
+    disconnectFromHub();
+    return -1;
+  }
+
+
+  /* continue reading the XIP packet of the just determined size
+   */
+  rcvLen = recv(ether_fd, ether_buf, bLen, MSG_DONTWAIT);
+  if (rcvLen < 0 && errno != EAGAIN && errno != EWOULDBLOCK) {
+    perror("recvPacket() :: recv(ether_fd, ether_buf, bLen, MSG_DONTWAIT)");
+    disconnectFromHub();
+    return -1;
+  }
+  if (rcvLen <= 0) {
+    log_debug(("  recvPacket() :: no network packet available -> return 0\n"));
+    return 0;
+  }
+
+  if (bLen != rcvLen) {
+    log_debug(("  recvPacket() WARNING :: packet size mismatch -> discard packet -> return 0\n"));
+    log_info(("recvPacket() WARNING :: packet size mismatch -> discard packet -> return 0\n"));
+    log_all(("recvPacket() WARNING :: packet size mismatch -> discard packet -> return 0\n"));
+    return 0;
+  }
+
+  if (bLen < 14) {
+    /* not even enough bytes for the ethernet header */
+    /* -> discard packet */
+    log_debug(("  recvPacket() WARNING :: packet too small -> discard packet -> return 0\n"));
+    log_info(("recvPacket() WARNING :: packet too small -> discard packet -> return 0\n"));
+    log_all(("recvPacket() WARNING :: packet too small -> discard packet -> return 0\n"));
+    return 0;
+  }
+
+  if (   memcmp(ether_buf, ether_host, 6) != 0
+      && memcmp(ether_buf, broadcast, 6) != 0) {
+    log_debug(("  recvPacket() :: packet is not for us and not a broadcast, ignoring packet\n"));
+    return 0;
+  }
+
+#if defined(BYTESWAP)
+  log_debug(("  recvPacket() :: byte-swapping %d bytes at %p\n", bLen, (void *)ether_buf));
+  dblwordsSwap(ether_buf, bLen);
+  IOPage->dlethernet[2] = bLen;
+#else
+  log_debug(("  recvPacket() :: %d bytes at %p\n", bLen, (void *)ether_buf));
+  IOPage->dlethernet[3] = bLen;
+#endif
+
+  ether_bsize = 0;
+
+
+  return bLen;
+}
+
+
+/* -1: failed/not connected; >= 0: packet bytes sent */
+static int sendPacket(u_char *source, int sourceLen) {
+  struct msghdr msg = {0};
+  struct iovec iov[2];
+  uint16_t nhlength;
+
+  if (ether_fd < 0) {
+    log_debug(("  sendPacket() :: not connected to hub !!!\n"));
+    return -1;
+  }
+  
+  if (sourceLen < 14) {
+    log_debug(("  sendPacket() :: invalid packet length: %d !!!\n", sourceLen));
+    return -1;
+  }
+
+  if (sourceLen & 0x0001) {
+    log_debug(("  sendPacket() :: packet length not even (mutiple of 2) !!!\n"));
+    return -1;
+  }
+
+  nhlength = htons(sourceLen);
+  iov[0].iov_base = &nhlength;
+  iov[0].iov_len = 2;
+  iov[1].iov_base = source;
+  iov[1].iov_len = sourceLen;
+  msg.msg_iov = iov;
+  msg.msg_iovlen = 2;
+
+  int result = sendmsg(ether_fd, &msg, 0);
+  return result;
+}
+
+/*
+**  --- SUBR implementations -------------------------------------------------------
+*/
+
+/************************************************************************/
+/*									*/
+/*			e t h e r _ s u s p e n d			*/
+/*									*/
+/*	Suspend receiving packets.                                      */
+/*	175/70/0							*/
+/*									*/
+/************************************************************************/
+LispPTR ether_suspend(LispPTR args[])
+{
+  if (nethubHost == NULL) {
+    return (ATOM_T);
+  }
+  log_debug(("ether_suspend() -- ignored!\n\n"));
+  log_info(("ether_suspend()\n"));
+  return (ATOM_T);
+}
+
+
+/************************************************************************/
+/*									*/
+/*			e t h e r _ r e s u m e				*/
+/*									*/
+/*	resume nit socket to receive all types of packets 175/71/0	*/
+/*									*/
+/************************************************************************/
+LispPTR ether_resume(LispPTR args[])
+{
+  if (nethubHost == NULL) {
+    return (ATOM_T);
+  }
+  log_debug(("ether_resume() - begin\n"));
+  int_io_open(ether_fd);
+  log_debug(("ether_resume() - end\n\n"));
+  log_info(("ether_resume()\n"));
+  return (ATOM_T);
+}
+
+
+/************************************************************************/
+/*									*/
+/*			e t h e r _ c t r l r				*/
+/*									*/
+/*	return T if ether controller is available 175/72/0		*/
+/*									*/
+/************************************************************************/
+LispPTR ether_ctrlr(LispPTR args[])
+{
+  if (nethubHost == NULL) {
+    return (NIL);
+  }
+  log_debug(("ether_ctrlr() - begin\n"));
+
+  connectToHub();
+
+  if (ether_fd < 0) {
+    log_debug(("ether_ctrlr() - end -> NIL\n\n"));
+    log_info(("ether_ctrlr() -> NIL\n"));
+    return (NIL);
+  } else {
+    int_io_open(ether_fd);
+    log_debug(("ether_ctrlr() - end -> ATOM_T\n\n"));
+    log_info(("ether_ctrlr() -> ATOM_T\n"));
+    return (ATOM_T);
+  }
+}
+
+
+/**********************************************************************
+ *	ether_reset(args) 175/73/0
+ *	reset ether controller and disable receipt of packets
+ **********************************************************************/
+LispPTR ether_reset(LispPTR args[])
+{
+  if (nethubHost == NULL) {
+    return (NIL);
+  }
+  log_debug(("ether_reset() - begin\n"));
+  
+  if (ether_fd < 0) {
+    log_debug(("ether_reset() - end -> NIL\n\n"));
+    log_info(("ether_reset() -> NIL\n"));
+    return (NIL);
+  }
+  ether_bsize = 0; /* deactivate receiver */
+  log_debug(("ether_reset() - end -> ATOM_T\n\n"));
+  log_info(("ether_reset() -> ATOM_T\n"));
+  return (ATOM_T);
+}
+
+
+/************************************************************************/
+/*									*/
+/*			  e t h e r _ g e t (175/74/2)			*/
+/*									*/
+/*	Set up the Ethernet driver to receive a packet.  The driver	*/
+/*	first tries to read any pending packet from the net, and if	*/
+/*	there is one, ether_get returns T.  If there is no pending	*/
+/*	packet, the failing read sets us up to get an interrupt when	*/
+/*	a packet DOES arrive, and ether_get returns NIL.		*/
+/*									*/
+/*		args[0] Length of the buffer we're passed		*/
+/*		args[1] LISP address of a packet buffer			*/
+/*									*/
+/*	sets ether_buf to the buffer address, for check_ether's use	*/
+/*	sets ether_bsize to the buffer size.  ether_bsize>0 means	*/
+/*	it's OK to read packets from the network on interrupt.		*/
+/*									*/
+/************************************************************************/
+LispPTR ether_get(LispPTR args[])
+{
+  int receivedBytes;
+  u_char *target;
+  int maxByteCount;
+
+  if (nethubHost == NULL) {
+    return (NIL);
+  }
+  log_debug(("ether_get() - begin\n"));
+
+  target = (u_char *)NativeAligned2FromLAddr(args[1]);
+  maxByteCount = 2 * LispIntToCInt(args[0]); /* words to bytes */
+  log_debug(("  target = %p maxBytecount: %d bytes\n", (void *)target, maxByteCount));
+
+  ether_buf = target;
+  ether_bsize = maxByteCount;
+
+  receivedBytes = recvPacket();
+
+  log_debug(("ether_get() ::  receivedBytes: %d bytes\n", receivedBytes));
+  if (receivedBytes <= 0) {
+    log_debug(("ether_get() - end -> NIL\n\n"));
+    return (NIL);
+  }
+
+  log_debug(("ether_get() - end -> ATOM_T\n\n"));
+  log_info(("ether_get(): received packet, len = %d bytes\n", receivedBytes));
+  return (ATOM_T);
+}
+
+
+
+/**********************************************************************
+ *	ether_send(args) 175/75/2 max_words,buffer_addr
+ *	send a packet
+ **********************************************************************/
+LispPTR ether_send(LispPTR args[])
+{
+  if (nethubHost == NULL) {
+    return (NIL);
+  }
+  log_debug(("ether_send() - begin\n"));
+
+  u_char *source = (u_char *)NativeAligned2FromLAddr(args[1]);
+  int byteCount = 2 * LispIntToCInt(args[0]); /* words to bytes */
+
+  log_debug(("   source = %p , bytecount: %d bytes\n", (void *)source, byteCount));
+
+#if defined(BYTESWAP)
+  dblwordsSwap(source, byteCount);
+  int bytesSent = sendPacket(source, byteCount);
+  dblwordsSwap(source, byteCount);
+#else
+  int bytesSent = sendPacket(source, byteCount);
+#endif
+
+  if (bytesSent < 0) {
+    log_debug(("ether_send() - failed (bytesSent: %d bytes) -> NIL\n\n", bytesSent));
+    log_info(("ether_send(): FAILED to send packet, len = %d\n", byteCount));
+    return (NIL);
+  }
+  
+  log_debug(("ether_send() - end -> ATOM_T\n\n"));
+  log_info(("ether_send(): sent packet, len = %d\n", bytesSent));
+  return (ATOM_T);
+}
+
+/**********************************************************************
+ *	ether_setfilter(args) 175/76/1 filterbits
+ *	check whether a packet has come. if does, notify iocb
+ **********************************************************************/
+LispPTR ether_setfilter(LispPTR args[])
+{
+  log_debug(("ether_setfilter() - ????\n\n"));
+  return (NIL);
+}
+
+
+/**********************************************************************
+ *	check_ether() 175/77/0
+ *	checks an incoming packet
+ **********************************************************************/
+LispPTR check_ether()
+{
+  int receivedBytes;
+  struct pollfd pfds[1];
+
+  if (ether_fd < 0) {
+    return (NIL);
+  }
+  log_debug(("check_ether() - begin\n"));
+  pfds[0].fd = ether_fd;
+  pfds[0].events = POLLIN;
+  pfds[0].revents = 0;
+  poll(pfds, 1, 0);
+  if (!(pfds[0].revents & POLLIN)) {
+    log_debug(("check_ether() - poll end -> NIL\n\n"));
+    return (NIL);
+  }
+  receivedBytes = recvPacket();
+  if (receivedBytes <= 0) {
+    log_debug(("check_ether() - data end -> NIL\n\n"));
+    return (NIL);
+  }
+
+  ((INTSTAT *)NativeAligned4FromLAddr(*INTERRUPTSTATE_word))->ETHERInterrupt = 1;
+  Irq_Stk_Check = Irq_Stk_End = 0; /* ??? */
+  *PENDINGINTERRUPT68k = (ATOM_T);
+  log_debug(("check_ether() :: raised LISP interrupt\n"));
+  log_debug(("check_ether() :: INTERRUPTSTATE_word   = 0x%08X\n",
+             *((int*)NativeAligned4FromLAddr(*INTERRUPTSTATE_word))));
+  log_info(("check_ether(): received packet, len = %d bytes\n", receivedBytes));
+  log_debug(("check_ether() - end -> ATOM_T\n\n"));
+  return (ATOM_T);
+}
+
+#endif /* MAIKO_ENABLE_NETHUB */
+

src/ether_sunos.c

@@ -7,6 +7,8 @@
 /*									*/
 /************************************************************************/
 
+#if defined(MAIKO_ENABLE_ETHERNET) && !defined(MAIKO_ENABLE_NETHUB)
+
 #include "version.h"
 
 #if defined(USE_DLPI)
@@ -79,17 +81,17 @@
 #define NIOCSETF PFIOCSETF
 #endif
 
-int ether_fd = -1; /* file descriptor for ether socket */
-int ether_intf_type = 0;
-u_char ether_host[6] = {0, 0, 0, 0, 0, 0}; /* 48 bit address of this node */
-u_char broadcast[6] = {255, 255, 255, 255, 255, 255};
-int ether_bsize = 0;  /* if nonzero then a receive is pending */
-u_char *ether_buf;    /* address of receive buffer */
-u_char nit_buf[3000]; /* the current chunk read from NIT (one packet) */
+extern int      ether_fd;      /* file descriptor for ether socket */
+static int      ether_intf_type = 0;
+extern u_char   ether_host[6]; /* 48 bit address of this node */
+extern u_char   broadcast[6];
+extern int      ether_bsize;   /* if nonzero then a receive is pending */
+extern u_char  *ether_buf;     /* address of receive buffer */
+static u_char   nit_buf[3000]; /* the current chunk read from NIT (one packet) */
 extern LispPTR *PENDINGINTERRUPT68k;
-extern fd_set LispReadFds;
+extern fd_set   LispReadFds;
 
-int ETHEREventCount = 0;
+extern int ETHEREventCount;
 
 #define PacketTypeIP 0x0800
 #define PacketTypeARP 0x0806
@@ -120,7 +122,6 @@ int ETHEREventCount = 0;
      ments of the stack and replaces them with its result.   When
      both an action and operator are specified in the same short-
      word, the action is performed followed by the operation.
-
      The binary operator can also be  from  the  set  {  ENF_COR,
      ENF_CAND,  ENF_CNOR, ENF_CNAND }.  These are "short-circuit"
      operators, in that  they  terminate  the  execution  of  the
@@ -132,7 +133,6 @@ int ETHEREventCount = 0;
      false; ENF_CNOR returns false if the result is true.  Unlike
      the other binary operators, these four do not leave a result
      on the stack, even if they continue.
-
      The short-circuit operators should be used when possible, to
      reduce  the  amount  of time spent evaluating filters.  When
      they are used, you should also  arrange  the  order  of  the
@@ -140,7 +140,6 @@ int ETHEREventCount = 0;
      possible; for example, checking the IP destination field  of
      a  UDP  packet  is  more likely to indicate failure than the
      packet type field.
-
      The special  action  ENF_NOPUSH  and  the  special  operator
      ENF_NOP  can be used to only perform the binary operation or
      to only push a value on the stack.   Since  both  are  (con-
@@ -148,7 +147,6 @@ int ETHEREventCount = 0;
      actually specifies the action followed by ENF_NOP, and indi-
      cating  only an operation actually specifies ENF_NOPUSH fol-
      lowed by the operation.
-
      After executing the filter command list,  a  non-zero  value
      (true)  left  on top of the stack (or an empty stack) causes
      the incoming packet to be accepted and a zero value  (false)
@@ -727,13 +725,13 @@ static int check_filter(u_char *buffer)
       case PacketTypeIP: return (0);
       case PacketTypeARP: return (0);
       default: return (1);
-    };
+    }
   /* my address */
   if (ether_addr_equal(buffer, ether_host)) switch (((short *)buffer)[6]) {
       case PacketTypeIP: return (0);
       case PacketTypeARP: return (0);
       default: return (1);
-    };
+    }
   return (0);
 }
 
@@ -746,23 +744,7 @@ static void init_uid() {
   rid = getuid();
   setuid(rid);
 }
-#endif /* MAIKO_ENABLE_ETHERNET */
 
-/************************************************************************/
-/*		i n i t _ i f p a g e _ e t h e r			*/
-/*									*/
-/*      sets Lisp's idea of \my.nsaddress. Clears it if ether not	*/
-/*      enabled								*/
-/*									*/
-/************************************************************************/
-
-void init_ifpage_ether() {
-  InterfacePage->nshost0 = (DLword)((ether_host[0] << 8) + ether_host[1]);
-  InterfacePage->nshost1 = (DLword)((ether_host[2] << 8) + ether_host[3]);
-  InterfacePage->nshost2 = (DLword)((ether_host[4] << 8) + ether_host[5]);
-}
-
-#ifdef MAIKO_ENABLE_ETHERNET
 /* this needs to be a global so the name can be set by main() in Ctest */
 /* But MAIKO_ENABLE_ETHERNET doesn't support NIT, so dyke it out for MAIKO_ENABLE_ETHERNET */
 #if defined(USE_NIT)
@@ -1085,49 +1067,4 @@ void init_ether() {
 #endif /* MAIKO_ENABLE_ETHERNET */
 }
 
-#define MASKWORD1 0xffff
-
-/************************************************************************/
-/*									*/
-/*			c h e c k _ s u m				*/
-/*									*/
-/*	Implements the CHECKSUM opcode; compute the checksum for an	*/
-/*	ethernet packet.						*/
-/*									*/
-/*	args[0] LispPTR base;						*/
-/*	args[1] LispPTR nwords;						*/
-/*	args[2] LispPTR initsum;					*/
-/*									*/
-/*									*/
-/************************************************************************/
-
-LispPTR check_sum(LispPTR *args)
-{
-  LispPTR checksum;
-  DLword *address;
-  int nwords;
-
-  address = (DLword *)NativeAligned2FromLAddr(*args++);
-  nwords = *args++;
-
-  if (*args != NIL)
-    checksum = (*args) & MASKWORD1;
-  else
-    checksum = 0;
-
-  for (; nwords > (S_POSITIVE); address++, nwords--) {
-    checksum = checksum + GETWORD(address);
-    if (checksum > 0xffff) checksum = (checksum & 0xffff) + 1; /* add carry */
-
-    if (checksum > 0x7fff) /* ROTATE LEFT 1 */
-      checksum = ((checksum & 0x7fff) << 1) | 1;
-    else
-      checksum = checksum << 1;
-  }
-
-  if (checksum == MASKWORD1)
-    return (S_POSITIVE); /* ret 0 */
-  else
-    return (S_POSITIVE | checksum);
-
-} /*check_sum */
+#endif /* defined(MAIKO_ENABLE_ETHERNET) */

src/foreign.c

@@ -43,7 +43,7 @@
 /***********************************************************/
 
 #define LStringToCString(Lisp, C, MaxLen, Len)                                                     \
-  {                                                                                                \
+  do {                                                                                                \
     OneDArray *arrayp;                                                                             \
     char *base;                                                                                    \
     short *sbase;                                                                                  \
@@ -70,7 +70,7 @@
                                                                                                    \
       default: error("LStringToCString can not handle\n");                                         \
     }                                                                                              \
-  }
+  } while (0)
 
 /************************************************************************/
 /*									*/
@@ -134,7 +134,7 @@ LispPTR call_c_fn(LispPTR *args) {
   *errorflag = 0;
 
   /* Initialize the argvector */
-  for (i = 0; i < Max_Arg; i++) { intarg[i] = 0; };
+  for (i = 0; i < Max_Arg; i++) { intarg[i] = 0; }
 
   /* Test the function addr. If it is 0 we can not execute. */
   if (fnaddr == 0) {
@@ -329,7 +329,7 @@ LispPTR call_c_fn(LispPTR *args) {
                           intarg[24], intarg[25], intarg[26], intarg[27], intarg[28], intarg[29],
                           intarg[30], intarg[31]);
       return (CIntToLispInt(tmp));
-    }; break;
+    } break;
     case TYPE_CHARACTERP: {
       int tmp;
       tmp = ((PFC)fnaddr)(intarg[0], intarg[1], intarg[2], intarg[3], intarg[4], intarg[5],
@@ -339,7 +339,7 @@ LispPTR call_c_fn(LispPTR *args) {
                           intarg[24], intarg[25], intarg[26], intarg[27], intarg[28], intarg[29],
                           intarg[30], intarg[31]);
       return (S_CHARACTER | tmp);
-    }; break;
+    } break;
     case TYPE_FLOATP:
       fresult = ((PFF)fnaddr)(intarg[0], intarg[1], intarg[2], intarg[3], intarg[4], intarg[5],
                               intarg[6], intarg[7], intarg[8], intarg[9], intarg[10], intarg[11],
@@ -416,7 +416,7 @@ LispPTR smashing_c_fn(LispPTR *args) {
   valueplace = (int *)NativeAligned4FromLAddr(args[1]);
 
   /* Initialize the argvector */
-  for (i = 0; i < Max_Arg; i++) { intarg[i] = 0; };
+  for (i = 0; i < Max_Arg; i++) { intarg[i] = 0; }
 
   /* Test the function addr. If it is 0 we can not execute. */
   if (fnaddr == 0) {
@@ -597,7 +597,7 @@ LispPTR smashing_c_fn(LispPTR *args) {
                           intarg[30], intarg[31]);
       *valueplace = tmp;
       return (NIL);
-    }; break;
+    } break;
     case TYPE_CHARACTERP:
       return (S_CHARACTER |
               (((PFC)fnaddr)(intarg[0], intarg[1], intarg[2], intarg[3], intarg[4], intarg[5],
@@ -867,7 +867,7 @@ int put_c_basebyte(LispPTR *args) {
         GETBYTE((char *)(addr + (offset >> 3))) &= (~(1 << (0x7 & offset)));
       } else {
         GETBYTE((char *)(addr + (offset >> 3))) |= (1 << (0x7 & offset));
-      };
+      }
       break;
     case 1: /* byte */ GETBYTE((char *)(addr + offset)) = 0xFF & newval; break;
     case 2: /* word */
@@ -917,7 +917,7 @@ int get_c_basebyte(LispPTR *args) {
         return (ATOM_T);
       } else {
         return (NIL);
-      };
+      }
       break;
     case 1: /* byte */ return ((0xFF & (GETBYTE((char *)(addr + offset)))) | S_POSITIVE); break;
     case 2: /* word */

src/fvar.c

@@ -492,7 +492,6 @@ LispPTR native_newframe(int slot)
             ppvar = (DLword *)newpfra2 - 1;
             /* ppvar points to IVAR field in Basic frame */
             return (*((LispPTR *)achain) = STK_HI_RET(GETWORD(ppvar) + fvaroffset));
-            ;
           default: error("Stack corrupted: bad value in name table");
         } /* end switch */
       }   /* end if */

src/gcarray.c

@@ -128,7 +128,7 @@ LispPTR aref1(LispPTR array, int index) {
       break;
     case 38: retval = (*(((LispPTR *)NativeAligned4FromLAddr(base)) + index)); break;
     default: error("Not Implemented in gc's aref1 (other types)");
-  };
+  }
   return (retval);
 }
 

src/gccode.c

@@ -151,8 +151,8 @@ LispPTR map_code_pointers(LispPTR codeblock, short int casep) {
         {
           REC_GCLOOKUP(reclaimed, casep);
         }
-      };
-    };
+      }
+    }
     if ((len = oplength[opnum]) >
         LONGEST_OPCODE) { /* len > biggest possible marks an unknown opcode */
       char errtext[200];
@@ -164,7 +164,7 @@ LispPTR map_code_pointers(LispPTR codeblock, short int casep) {
       oplength[opnum] = len = (((UFN *)UFNTable) + (opnum))->byte_num;
     }
     codeptr += len + 1;
-  };
+  }
 }
 
 /************************************************************************/
@@ -190,20 +190,20 @@ LispPTR remimplicitkeyhash(LispPTR item, LispPTR ik_hash_table) {
   value = Getikvalue(base, index);
   if (value != *Deleted_Implicit_Hash_Slot_word) {
     if (value != NIL) {
-      if (item == getikkey(value)) { goto found; };
+      if (item == getikkey(value)) { goto found; }
     } else
       return (NIL);
-  };
+  }
   reprobe = Reprobefn(bits, limits);
 lp:
   index = Fn16bits(index, reprobe) & limits;
   value = Getikvalue(base, index);
   if (value != *Deleted_Implicit_Hash_Slot_word) {
     if (value != NIL) {
-      if (item == getikkey(value)) { goto found; };
+      if (item == getikkey(value)) { goto found; }
     } else
       return (NIL);
-  };
+  }
   goto lp;
 found:
   /*
@@ -235,7 +235,7 @@ LispPTR reclaimcodeblock(LispPTR codebase) {
   if ((*Closure_Cache_Enabled_word != NIL) &&
       (remimplicitkeyhash(codebase, *Closure_Cache_word) != NIL)) {
     return (T);
-  };
+  }
   fnbase = (struct fnhead *)NativeAligned4FromLAddr(codebase);
   REC_GCLOOKUP((POINTERMASK & fnbase->framename), DELREF);
   if (fnbase->startpc != 0) map_code_pointers(codebase, DELREF);
@@ -260,7 +260,7 @@ int code_block_size(long unsigned int codeblock68k) {
   while (T) {
     switch (opnum = Get_BYTE(codeptr)) {
       case ENDOFX: /* -X- */ return (codeptr - initcodeptr);
-    };
+    }
     if ((len = oplength[opnum]) >
         LONGEST_OPCODE) { /* len > biggest possible marks an unknown opcode */
       char errtext[200];
@@ -272,5 +272,5 @@ int code_block_size(long unsigned int codeblock68k) {
       oplength[opnum] = len = (((UFN *)UFNTable) + (opnum))->byte_num;
     }
     codeptr += len + 1;
-  };
+  }
 }

src/gcfinal.c

@@ -123,7 +123,7 @@ int integerlength(unsigned int n) {
       n = (n >> 1);
     } while (n != 1);
     return (cnt);
-  };
+  }
 }
 
 /************* The above procedure is common !! **************************/
@@ -146,7 +146,7 @@ LispPTR findptrsbuffer(LispPTR ptr) {
       return (LAddrFromNative(bptr));
     else
       bptr = (struct buf *)NativeAligned4FromLAddr(bptr->sysnext);
-  };
+  }
   return (NIL);
 }
 
@@ -229,8 +229,8 @@ LispPTR checkarrayblock(LispPTR base, LispPTR free, LispPTR onfreelist) {
         rbase = (struct arrayblock *)NativeAligned4FromLAddr(*rover & POINTERMASK);
       } while (((*rover = rbase->fwd) & POINTERMASK) != (*tmprover & POINTERMASK));
       return (NIL);
-    };
-  };
+    }
+  }
   return (NIL);
 }
 
@@ -299,11 +299,11 @@ LispPTR linkblock(LispPTR base) {
         tmpbase = (struct arrayblock *)NativeAligned4FromLAddr(fbbase->bkwd);
         tmpbase->fwd = base;
         fbbase->bkwd = base;
-      };
+      }
       *freeblock = base;
       checkarrayblock(base, T, T);
-    };
-  };
+    }
+  }
   return (base);
 }
 
@@ -357,10 +357,10 @@ LispPTR arrayblockmerger(LispPTR base, LispPTR nbase) {
       narlens = minblocksize;
       arlens += shaveback;
       secondbite += shaveback;
-    };
+    }
     linkblock(makefreearrayblock(nbase + 2 * secondbite, narlens));
     narlens = 0;
-  };
+  }
   return (linkblock(makefreearrayblock(base, arlens + narlens)));
 }
 
@@ -457,7 +457,7 @@ LispPTR reclaimarrayblock(LispPTR ptr) {
       ((ARRAYBLOCKPASSWORD != base->password) || (base->inuse == NIL))) {
     error("Bad array block reclaimed--continue with 'q' but save state ASAP. \n");
     return (T);
-  };
+  }
 #endif /* ARRAYCHECK */
 
   switch (base->gctype) {
@@ -472,12 +472,12 @@ LispPTR reclaimarrayblock(LispPTR ptr) {
         tmpptr += 2;
       } while (tmpptr != btrailer);
       break;
-    };
+    }
     case CODEBLOCK_GCT:
       reclaim_p = ((reclaimcodeblock(ptr) == NIL) ? T : NIL);
 
       /* default:   No Action */
-  };
+  }
   if (reclaim_p == T)
     mergeforward(mergebackward(makefreearrayblock(ptr - ARRAYBLOCKHEADERWORDS, base->arlen)));
   return (T);

src/gchtfind.c

@@ -32,21 +32,21 @@
 
 /* GetLink gets a new entry from the GC collision table */
 #define GetLink(var)                                               \
-  {                                                                \
+  do {                                                                \
     GCENTRY linkoff;                                      \
     linkoff = GETGC(HTcoll);                                       \
     if (linkoff == 0) {                                            \
       if ((linkoff = GETGC((GCENTRY *)HTcoll + 1)) >= HTCOLLMAX) { \
         disablegc1(NIL);                                           \
         return (NIL);                                              \
-      };                                                           \
+      }                                                           \
       GETGC((GCENTRY *)HTcoll + 1) = linkoff + 2;                  \
       (var) = (GCENTRY *)(HTcoll + linkoff);                       \
     } else {                                                       \
       GETGC(HTcoll) = GETGC((GCENTRY *)(HTcoll + linkoff + 1));    \
       (var) = (GCENTRY *)(HTcoll + linkoff);                       \
     }                                                              \
-  }
+  } while (0)
 
 #ifdef BIGVM
 #define HTCNTSHIFT 17           /* amount to shift to get hash table count */
@@ -81,7 +81,7 @@
  * Thus STKREF case is not needed.
  */
 #define NewEntry(entry, hiptr, casep, ptr)                              \
-  {                                                                     \
+  do {                                                                     \
     switch (casep) {                                                    \
       case ADDREF:                                                      \
         GETGC(entry) = (hiptr) | (2 << HTCNTSHIFT); /* set count = 2 */ \
@@ -94,14 +94,14 @@
       default: error("GC error: new entry touches stack bit");          \
         return NIL; /* NOT REACHED */                                   \
     }                                                                   \
-  }
+  } while (0)
 
 /*
  * RecNewEntry is called in the course of the reclamation.
  * Does not maintain the allocation count.
  */
 #define RecNewEntry(entry, hiptr, casep, ptr)                           \
-  {                                                                     \
+  do {                                                                     \
     switch (casep) {                                                    \
       case ADDREF:                                                      \
         GETGC(entry) = (hiptr) | (2 << HTCNTSHIFT); /* set count = 2 */ \
@@ -115,7 +115,7 @@
       default: error("GC error: new entry when turning off stack bit"); \
         return NIL; /* NOT REACHED */                                   \
     }                                                                   \
-  }
+  } while (0)
 
 /* ModEntry is a macro to modify an old gc hash table entry.
      entry is a pointer to the entry
@@ -131,7 +131,7 @@
  * Thus STKREF and UNSTKREF cases are not needed.
  */
 #define ModEntry(entry, contents, ptr, casep, remove)                                       \
-  {                                                                                         \
+  do {                                                                                         \
     if (((contents) & HTCNTMASK) == HTCNTMASK) { /* overflow; return non-zero */            \
       modify_big_reference_count(entry, casep, ptr);                                        \
       return NIL;                                                                           \
@@ -161,14 +161,14 @@
     }                                                                                       \
     GETGC(entry) = contents;                                                                \
     return NIL;                                                                             \
-  }
+  } while (0)
 
 /*
  * RecModEntry is called in the course of the reclamation.
  * Does not maintain the allocation count.
  */
 #define RecModEntry(entry, contents, ptr, casep, remove)                                    \
-  {                                                                                         \
+  do {                                                                                         \
     if (((contents) & HTCNTMASK) == HTCNTMASK) { /* overflow; return non-zero */            \
       modify_big_reference_count(entry, casep, ptr);                                        \
       return NIL;                                                                           \
@@ -200,7 +200,7 @@
     if (((contents) & HTCNTSTKMASK) == (1 << HTCNTSHIFT)) goto remove;                      \
     GETGC(entry) = contents;                                                                \
     return NIL;                                                                             \
-  }
+  } while (0)
 
 /************************************************************************/
 /*									*/
@@ -231,7 +231,7 @@ void enter_big_reference_count(LispPTR ptr) {
       return;
     } else
       ++oventry;
-  };
+  }
 
   if (tmp == NIL) {
     if (Evenp(LAddrFromNative(oventry + 1), DLWORDSPER_PAGE)) {

src/gcmain3.c

@@ -219,7 +219,7 @@ LispPTR gcscanstack(void) {
 #endif /* BIGVM */
             Stkref(fn_head);
             fnheader = (struct fnhead *)NativeAligned4FromLAddr(fn_head);
-          };
+          }
           {
             int pcou;
             LispPTR *pvars;
@@ -230,8 +230,8 @@ LispPTR gcscanstack(void) {
               if
                 Boundp(BIND_BITS(value)) Stkref(value);
               ++pvars;
-            }; /* for */
-          };   /* int pcou */
+            } /* for */
+          }   /* int pcou */
 
           {
             UNSIGNED qtemp;
@@ -264,7 +264,7 @@ LispPTR gcscanstack(void) {
                                    (((struct fnhead *)qtemp)->ntsize) * 2);
               } else
                 Stkref(nametable);
-            }; /* frameex->validnametable */
+            } /* frameex->validnametable */
 
             obasicframe = basicframe;
             basicframe =
@@ -286,7 +286,7 @@ LispPTR gcscanstack(void) {
               if
                 Boundp(BIND_BITS(value)) Stkref(value);
               basicframe++;
-            }; /* while */
+            } /* while */
 
             if (ntend != 0) {
               obasicframe = basicframe;
@@ -303,7 +303,7 @@ LispPTR gcscanstack(void) {
               qtemp = next;
               ntend = 0;
               goto scantemps;
-            };
+            }
 
             obasicframe = basicframe;
             basicframe = (Bframe *)next;
@@ -317,10 +317,10 @@ LispPTR gcscanstack(void) {
               error(debugStr);
             }
 
-          }; /* LOCAL regs qtemp next */
-        };   /* local regs fnheader frameex */
+          } /* LOCAL regs qtemp next */
+        }   /* local regs fnheader frameex */
         break;
-      };
+      }
       case STK_GUARD: /* stack's tail ? */ {
         if ((UNSIGNED)basicframe >= (UNSIGNED)scanend68K)
           return (NIL);
@@ -336,9 +336,9 @@ LispPTR gcscanstack(void) {
                     (void *)basicframe, (void *)obasicframe);
             error(debugStr);
           }
-        };
+        }
         break;
-      };
+      }
       case STK_FSB: {
         obasicframe = basicframe;
         basicframe = (Bframe *)((DLword *)basicframe + basicframe->ivar);
@@ -353,25 +353,25 @@ LispPTR gcscanstack(void) {
         }
 
         break;
-      };
+      }
       default: /* must be basic frame !! */
       {
         LispPTR bf_word;
         while (STK_BF != BF_FLAGS(bf_word = *((LispPTR *)basicframe))) {
           Stkref(PTR_BITS(bf_word));
           basicframe++;
-        };
+        }
         basicframe++;
-      };
+      }
 
         /* **** NOTE THIS CODE DOES NOT COMPILE CORRECTLY ON THE SUN 4
            {LispPTR bf_word;
            while(STK_BF != BF_FLAGS(
            bf_word = *((LispPTR *)basicframe++)))
            { Stkref(PTR_BITS(bf_word));
-           };
-           };
+           }
+           }
            **** */
-    }; /* switch */
-  };   /* while(1) */
+    } /* switch */
+  }   /* while(1) */
 }

src/gcoflow.c

@@ -37,14 +37,16 @@
 #include "lsptypes.h"     // for dtd, GetDTD, TYPE_LISTP
 
 #define Increment_Allocation_Count(n) \
-  if (*Reclaim_cnt_word != NIL) {     \
-    if (*Reclaim_cnt_word > (n))      \
-      (*Reclaim_cnt_word) -= (n);     \
-    else {                            \
-      *Reclaim_cnt_word = NIL;        \
-      doreclaim();                    \
-    }                                 \
-  }
+  do {                                \
+    if (*Reclaim_cnt_word != NIL) {     \
+      if (*Reclaim_cnt_word > (n))      \
+        (*Reclaim_cnt_word) -= (n);     \
+      else {                            \
+        *Reclaim_cnt_word = NIL;        \
+        doreclaim();                    \
+      }                                 \
+    }                                   \
+  } while (0)
 
 DLword gc_handleoverflow(DLword arg) {
   struct htoverflow *cell;
@@ -58,14 +60,14 @@ DLword gc_handleoverflow(DLword arg) {
     cell->ptr = 0;
     cell->pcase = 0;
     ++cell; /* (\ADDBASE CELL WORDSPERCELL) */
-  };
+  }
   ptr = (struct dtd *)GetDTD(TYPE_LISTP);
   /* same as "extern struct dtd *ListpDTD" */
   if ((cellcnt = ptr->dtd_cnt0) > 1024) {
     Increment_Allocation_Count(cellcnt);
     ptr->dtd_oldcnt += cellcnt;
     ptr->dtd_cnt0 = 0;
-  };
+  }
   return (arg);
 }
 
@@ -82,7 +84,7 @@ DLword gcmaptable(DLword arg) {
     cell->ptr = 0;
     cell->pcase = 0;
     ++cell; /* (\ADDBASE CELL WORDSPERCELL) */
-  };
+  }
   for (typnum = 1; typnum <= *MaxTypeNumber_word; ++typnum)
   /* applied alltype */
   {
@@ -91,7 +93,7 @@ DLword gcmaptable(DLword arg) {
       ptr->dtd_oldcnt += cellcnt;
       ptr->dtd_cnt0 = 0;
       Increment_Allocation_Count(cellcnt);
-    };
-  };
+    }
+  }
   return (arg);
 }

src/gcr.c

@@ -149,6 +149,6 @@ void disablegc1(int noerror) {
   if ((noerror == NIL) && (*GcDisabled_word == NIL)) {
     gcinterruptstate->gcdisabled = T;
     *PENDINGINTERRUPT_word = ATOM_T;
-  };
+  }
   *GcDisabled_word = ATOM_T;
 }

src/gcrcell.c

@@ -87,16 +87,18 @@
 
 #define TODO_LIMIT 1000
 #define ADD_TO_DO(ptr, offset)                               \
-  if (do_count < TODO_LIMIT) {                               \
-    if ((ptr) & 0xF0000000) error("illegal ptr in addtodo"); \
-    to_do[do_count] = (ptr);                                 \
-    to_do_offset[do_count] = offset;                         \
-    todo_uses++;                                             \
-    /*REC_GCLOOKUP((ptr), ADDREF);*/                         \
-    do_count++;                                              \
-  } else { /* error("GC missing some to-do's"); */           \
-    todo_misses++;                                           \
-  }
+  do {                                                       \
+    if (do_count < TODO_LIMIT) {                               \
+      if ((ptr) & 0xF0000000) error("illegal ptr in addtodo"); \
+      to_do[do_count] = (ptr);                                 \
+      to_do_offset[do_count] = offset;                         \
+      todo_uses++;                                             \
+      /*REC_GCLOOKUP((ptr), ADDREF);*/                         \
+      do_count++;                                              \
+    } else { /* error("GC missing some to-do's"); */           \
+      todo_misses++;                                           \
+    }                                                          \
+  } while (0)
 
 unsigned todo_uses = 0;
 unsigned todo_misses = 0;
@@ -156,7 +158,7 @@ lp:
         ptr = (ConsCell *)NativeAligned4FromLAddr(tmpcell);
         tmpptr = tmpcell;
         code = ptr->cdr_code;
-      };
+      }
       if (index != -1) /* car part */
         index = -1;
       else {
@@ -166,7 +168,7 @@ lp:
           ptr->cdr_code = code;
           donext = tmpptr;
           goto doval;
-        };
+        }
       }
       REC_GCLOOKUPV(cdr(tmpptr), DELREF, val);
       if (code <= CDR_MAXINDIRECT) {
@@ -176,10 +178,10 @@ lp:
         tmpcell = POINTER_PAGEBASE(tmpptr) + ((code - CDR_INDIRECT) << 1);
 #endif /* NEWCDRCODING */
         freelistcell(tmpcell);
-      };
+      }
       freelistcell(tmpptr);
       goto doval;
-    };
+    }
     case TYPE_ARRAYBLOCK:
       if ((index == -1) && reclaimarrayblock(tmpptr))
         goto trynext;
@@ -208,7 +210,7 @@ lp:
       else
         break;
     default:;
-  };
+  }
 normal:
   typdtd = (struct dtd *)GetDTD(typ);
   ptrfield = typdtd->dtd_ptrs;
@@ -217,7 +219,7 @@ normal:
     ptrfield = cdr(ptrfield);
     while ((car(ptrfield) & 0x0ffff) != index) ptrfield = cdr(ptrfield);
     index = -1;
-  };
+  }
   while (ptrfield != NIL) {
     carfield = car(ptrfield);
     ptrfield = cdr(ptrfield);
@@ -233,7 +235,7 @@ normal:
         goto doval;
       } else
         goto addtofreelist;
-    };
+    }
 #else
     if (val != NIL) {
       if (ptrfield != NIL) {
@@ -249,9 +251,9 @@ normal:
         }
       } else
         goto addtofreelist;
-    };
+    }
 #endif /* NEWCDRCODING */
-  };
+  }
 addtofreelist:
   field = (LispPTR *)NativeAligned4FromLAddr(tmpptr);
   *field = typdtd->dtd_free;
@@ -273,7 +275,7 @@ doval:
     /*	GCLOOKUP(0x8000, ADDREF,tmpptr); */
     val = NIL;
     goto lp;
-  };
+  }
 
 /***************************************************************/
 /*									*/
@@ -289,7 +291,7 @@ trynext:
     donext = (LispPTR)ptr->car_field;
     index = ptr->cdr_code;
     goto lp;
-  };
+  }
 #ifdef NEWCDRCODING
   if (do_count) /* If there are other cells to collect */
   {
@@ -354,5 +356,5 @@ void freelistcell(LispPTR cell) {
   if ((++pbase->count > 32) && (pbase->next_page == CONSPAGE_LAST)) {
     pbase->next_page = ListpDTD->dtd_nextpage;
     ListpDTD->dtd_nextpage = POINTER_PAGE(cell);
-  };
+  }
 }

src/hardrtn.c

@@ -36,12 +36,12 @@
 #include "stack.h"        // for FX, frameex1, Bframe, CHECK_FX, StackWord
 
 #define MAKE_FXCOPY(fx68k)                                                                   \
-  {                                                                                          \
+  do {                                                                                          \
     BEFORE_CONTEXTSW;                                                                        \
     if (((fx68k) = (FX *)make_FXcopy(fx68k)) == 0) { return (1); /* Whole space exhausted */ } \
     AFTER_CONTEXTSW;                                                                         \
     CHECK_FX(fx68k);                                                                         \
-  }
+  } while (0)
 static FX *make_FXcopy(FX *fx68k) {
   int size;
   int nametbl_on_stk = NIL;

src/initsout.c

@@ -46,7 +46,7 @@
 #include "mkcelldefs.h"    // for N_OP_createcell
 #include "testtooldefs.h"  // for MakeAtom68k, MAKEATOM
 
-#ifdef MAIKO_ENABLE_ETHERNET
+#if defined(MAIKO_ENABLE_ETHERNET) || defined(MAIKO_ENABLE_NETHUB)
 #include "etherdefs.h"
 #endif
 
@@ -117,9 +117,9 @@ void init_ifpage(int sysout_size) {
     Initialize IFPAGE
    */
   InterfacePage->machinetype = KATANA; /* 3 is katana */
-#ifdef MAIKO_ENABLE_ETHERNET
+#if defined(MAIKO_ENABLE_ETHERNET) || defined(MAIKO_ENABLE_NETHUB)
   init_ifpage_ether(); /* store ethernet ID in IF page */
-#endif /* MAIKO_ENABLE_ETHERNET */
+#endif /* MAIKO_ENABLE_ETHERNET or MAIKO_ENABLE_NETHUB */
   /*InterfacePage->dl24bitaddressable = (sysout_size == 32? 0xffff : 0);*/
   InterfacePage->dl24bitaddressable = (sysout_size == 8 ? 0 : 0xffff);
   new_lastvmem = (sysout_size * PAGES_IN_MBYTE) - 1;
@@ -457,7 +457,7 @@ void init_for_bltchar(void) {
   if (!for_makeinit) {
     BLTCHAR_index = get_package_atom("\\MAIKO.PUNTBLTCHAR", 18, IL, 9, NIL);
     TEDIT_BLTCHAR_index = get_package_atom("\\TEDIT.BLTCHAR", 14, IL, 9, NIL);
-  };
+  }
   TOPWDS68k = MakeAtom68k("\\TOPWDS");
 
 #ifdef COLOR

src/keyevent.c

@@ -61,9 +61,9 @@ void Mouse_hndlr(void); /* Fields mouse events from driver        */
 #include "osmsgdefs.h"
 #include "xwinmandefs.h"
 
-#ifdef MAIKO_ENABLE_ETHERNET
+#if defined(MAIKO_ENABLE_ETHERNET) || defined(MAIKO_ENABLE_NETHUB)
 #include "etherdefs.h"
-#endif /* MAIKO_ENABLE_ETHERNET */
+#endif /* MAIKO_ENABLE_ETHERNET or MAIKO_ENABLE_NETHUB */
 
 #include "dbprint.h"
 #if (defined(DOS) || defined(XWINDOW))
@@ -78,28 +78,28 @@ extern IOPAGE *IOPage68K;
 
 /*  EmMouseX68K are already swapped, no need for GETWORD */
 #define MouseMove(x, y)           \
-  {                               \
+  do {                               \
     *((DLword *)EmMouseX68K) = x; \
     *((DLword *)EmMouseY68K) = y; \
-  }
+  } while (0)
 #ifdef NEVER
 #ifndef BYTESWAP
 #define PUTBASEBIT68K(base68k, offset, bitvalue)               \
-  {                                                            \
+  do {                                                            \
     if (bitvalue)                                              \
       *((DLword *)(base68k) + (((u_short)(offset)) >> 4)) |=   \
           1 << (15 - ((u_short)(offset)) % BITSPER_DLWORD);    \
     else                                                       \
       *((DLword *)(base68k) + (((u_short)(offset)) >> 4)) &=   \
           ~(1 << (15 - ((u_short)(offset)) % BITSPER_DLWORD)); \
-  }
+  } while (0)
 #else
 
 /* convert to real 68 k address, then do arithmetic, and convert
    back to i386 address pointer */
 
 #define PUTBASEBIT68K(base68k, offset, bitvalue)                       \
-  {                                                                    \
+  do {                                                                    \
     int real68kbase;                                                   \
     real68kbase = 2 ^ ((int)(base68k));                                \
     if (bitvalue)                                                      \
@@ -108,7 +108,7 @@ extern IOPAGE *IOPage68K;
     else                                                               \
       GETWORD((DLword *)(real68kbase) + (((u_short)(offset)) >> 4)) &= \
           ~(1 << (15 - ((u_short)(offset)) % BITSPER_DLWORD));         \
-  }
+  } while (0)
 #endif
 #endif /* NEVER */
 
@@ -124,9 +124,9 @@ extern volatile sig_atomic_t XNeedSignal;
 
 extern int LogFileFd;
 
-#ifdef MAIKO_ENABLE_ETHERNET
+#if defined(MAIKO_ENABLE_ETHERNET) || defined(MAIKO_ENABLE_NETHUB)
 extern int ether_fd;
-#endif /* MAIKO_ENABLE_ETHERNET */
+#endif /* MAIKO_ENABLE_ETHERNET or MAIKO_ENABLE_NETHUB */
 
 extern DLword *DisplayRegion68k;
 
@@ -263,6 +263,10 @@ void process_io_events()
     }
 #endif /* MAIKO_ENABLE_ETHERNET */
 
+#ifdef MAIKO_ENABLE_NETHUB
+    check_ether();
+#endif /* MAIKO_ENABLE_NETHUB */
+
 #ifdef RS232
     if (RS232C_Fd >= 0 && (FD_ISSET(RS232C_Fd, &rfds) || (RS232C_remain_data && rs232c_lisp_is_ready())))
       rs232c_read();
@@ -336,22 +340,22 @@ typedef struct {
 } CURSOR;
 
 #define CursorClippingX(posx, width)                         \
-  {                                                          \
+  do {                                                       \
     if (displaywidth < ((posx) + HARD_CURSORWIDTH)) {        \
       LastCursorClippingX = (width) = displaywidth - (posx); \
     } else {                                                 \
       LastCursorClippingX = (width) = HARD_CURSORWIDTH;      \
     }                                                        \
-  }
+  } while (0)
 
 #define CursorClippingY(posy, height)                          \
-  {                                                            \
+  do {                                                         \
     if (displayheight < ((posy) + HARD_CURSORHEIGHT)) {        \
       LastCursorClippingY = (height) = displayheight - (posy); \
     } else {                                                   \
       LastCursorClippingY = (height) = HARD_CURSORHEIGHT;      \
     }                                                          \
-  }
+  } while (0)
 
 extern int displaywidth, displayheight;
 extern int DisplayInitialized;
@@ -448,7 +452,7 @@ void copy_cursor(int newx, int newy)
   dx = newx;
   w = LastCursorClippingX;
   h = LastCursorClippingY;
-  ;
+
   srcbpl = HARD_CURSORWIDTH;
   dstbpl = displaywidth;
   op = 2; /* OR-in */

src/ldeboot.c

@@ -174,7 +174,7 @@ int main(int argc, char *argv[])
   } else {
     perror("lde: This Display Model does not supported\n");
     exit(-1);
-  }; /* endif( my_screen... */
+  } /* endif( my_screen... */
 
   close(FrameBufferFd);
 

src/ldsout.c

@@ -302,7 +302,7 @@ int sysout_loader(const char *sysout_file_name, int sys_size) {
         perror("sysout_loader: can't seek sysout file");
         free(fptovp);
         exit(-1);
-      };
+      }
       lispworld_offset = GETFPTOVP(fptovp, i) * BYTESPER_PAGE;
       if (read(sysout, lispworld_scratch + lispworld_offset, BYTESPER_PAGE) == -1) {
         printf("sysout_loader: can't read sysout file at %d\n", i);
@@ -314,11 +314,11 @@ int sysout_loader(const char *sysout_file_name, int sys_size) {
         }
         free(fptovp);
         exit(-1);
-      };
+      }
 #ifdef BYTESWAP
       word_swap_page((DLword *)(lispworld_scratch + lispworld_offset), 128);
 #endif
-    };
+    }
   }
   free(fptovp);
   DBPRINT(("sysout file is read completely.\n"));

src/lineblt8.c

@@ -56,7 +56,7 @@ unsigned int BMask_tbl[] = {0xf, 7, 3, 1};
        therefore, width indicates the rest bits in source bitmap */
 
 #define LineBLT8(srcWptr, offset, width, dstLptr, op1, op2)                                \
-  {                                                                                        \
+  do {                                                                                     \
     DLword *srcw;                                                                 \
     u_int temp1;                                                                  \
     for (srcw = (srcWptr) + (offset) / BITSPERDLWORD; ((width)-BITSPERNIBBLE) >= 0;        \
@@ -116,7 +116,7 @@ unsigned int BMask_tbl[] = {0xf, 7, 3, 1};
         break;                                                                             \
       default:; /* error */                                                                \
     }           /* switch end */                                                           \
-  }             /* MACRO END */
+  } while (0)   /* MACRO END */
 
 /************************************************************************/
 /*									*/

src/llcolor.c

@@ -178,7 +178,7 @@ LispPTR cgfour_change_screen_mode(LispPTR which_screen)
       break;
     }
     default: { error("cgfour_change_screen_mode:Unknown mode:"); }
-  };
+  }
 
 #ifndef DISPLAYBUFFER
   pr_close(ColorFb);

src/llstk.c

@@ -335,7 +335,7 @@ SCAN:
       while (STKWORD(scanptr68k)->flags != STK_BF) {
         S_WARN(STKWORD(scanptr68k)->flags == STK_NOTFLG, "NOTFLG not on", (void *)scanptr68k);
         scanptr68k = (StackWord *)(((DLword *)scanptr68k) + DLWORDSPER_CELL);
-      };
+      }
 
 #ifdef STACKCHECK
       if (((Bframe *)scanptr68k)->residual) {
@@ -605,7 +605,7 @@ void stack_check(StackWord *start68k) {
             WARN("StackCheck:!=STK_NOTFLG", printf("content:0x%x\n", GETWORD((DLword *)scanptr68k)));
           }
           scanptr68k = (StackWord *)((DLword *)scanptr68k + DLWORDSPER_CELL);
-        } /* while end */;
+        } /* while end */
         CHECK_BF((Bframe *)scanptr68k);
         if (((Bframe *)scanptr68k)->residual) {
           if ((DLword *)scanptr68k != top_ivar)
@@ -774,7 +774,7 @@ void walk_stack(StackWord *start68k) {
                    GETWORD((DLword *)scanptr68k));
           }
           scanptr68k = (StackWord *)((DLword *)scanptr68k + DLWORDSPER_CELL);
-        } /* while end */;
+        } /* while end */
         /* CHECK_BF(scanptr68k); */
         {
           Bframe *bf = (Bframe *)scanptr68k;
@@ -900,7 +900,7 @@ int quick_stack_check(void) {
             return(1);
           }
           scanptr68k = (StackWord *)((DLword *)scanptr68k + DLWORDSPER_CELL);
-        } /* while end */;
+        } /* while end */
         CHECK_BF((Bframe *)scanptr68k);
         if (((Bframe *)scanptr68k)->residual) {
           if ((DLword *)scanptr68k != top_ivar)

src/loopsops.c

@@ -65,21 +65,21 @@ static const char il_string[] = "INTERLISP";
 #define CLASSP(obj) (LC_TYPEP((obj), atom_class))
 
 #define INSTANCE_OR_PUNT(obj, fn, argnum)                     \
-  {                                                           \
+  do {                                                        \
     if (!LC_TYPEP((obj), atom_instance)) RETCALL(fn, argnum); \
-  }
+  } while (0)
 
 #define INSTANCE_CLASS_OR_PUNT(obj, fn, argnum)                         \
-  {                                                                     \
+  do {                                                                  \
     LispPTR tmp = DTD_FROM_LADDR(obj);                         \
     if (tmp != atom_instance && tmp != atom_class) RETCALL(fn, argnum); \
-  }
+  } while (0)
 
 #define LC_INIT \
   if (atom_instance == 0) LCinit()
 
 #define GET_IV_INDEX(objptr, iv, dest, otherwise)                 \
-  {                                                               \
+  do {                                                            \
     struct LCIVCacheEntry *ce;                           \
     LispPTR iNames = (objptr)->iNames;                   \
                                                                   \
@@ -105,7 +105,7 @@ static const char il_string[] = "INTERLISP";
         }                                                         \
       }                                                           \
     }                                                             \
-  }
+  } while (0)
 
 struct LCClass { /* class datatype */
   LispPTR metaClass, ivNames, ivDescrs, classUnitRec, localIVs, cvNames, cvDescrs, className,
@@ -206,7 +206,7 @@ LispPTR LCFetchMethodOrHelp(LispPTR object, LispPTR selector) {
           ce->selector = selector;
           return (ce->method_fn = ((LispPTR *)NativeAligned4FromLAddr(classptr->methods))[i - 1]);
         }
-      };
+      }
 
     next_class:
       if ((cur_class = car(supers)) == NIL_PTR) break;
@@ -255,7 +255,7 @@ LispPTR LCFetchMethod(LispPTR class, LispPTR selector) {
           ce->selector = selector;
           return (ce->method_fn = ((LispPTR *)NativeAligned4FromLAddr(classptr->methods))[i - 1]);
         }
-      };
+      }
 
     next_class:
       if ((cur_class = car(supers)) == NIL_PTR) break;

src/lowlev1.c

@@ -50,7 +50,7 @@ LispPTR N_OP_putbitsnfd(LispPTR base, LispPTR data, int word_offset,
   if (beta > 0xFF) { error("bad beta argument to PUTBITS"); }
 #endif
 
-  if ((SEGMASK & data) != S_POSITIVE) { ERROR_EXIT(data); };
+  if ((SEGMASK & data) != S_POSITIVE) { ERROR_EXIT(data); }
 
   pword = NativeAligned2FromLAddr(base + word_offset);
   field_size = 0xF & beta;

src/lsthandl.c

@@ -73,19 +73,19 @@ LispPTR fmemb(LispPTR item, LispPTR list) {
 /**********************************************************************/
 
 #define SAVE_ERROR_EXIT2(topcstk, tos) \
-  {                                    \
+  do {                                  \
     Scratch_CSTK = topcstk;            \
     ERROR_EXIT(tos);                   \
-  }
+  } while (0)
 
 #define S_N_CHECKANDCADR2(sour, dest, tos, tcstk) \
-  {                                               \
+  do {                                            \
     LispPTR parm = sour;                 \
     if (GetTypeNumber(parm) != TYPE_LISTP) {      \
       SAVE_ERROR_EXIT2(tcstk, tos);               \
     } else                                        \
       (dest) = cadr(parm);                        \
-  }
+  } while (0)
 
 LispPTR N_OP_listget(LispPTR plist, LispPTR tos) {
   struct cadr_cell cadrobj;

src/main.c

@@ -285,6 +285,22 @@ const char *helpstring =
  -help        Print this message\n";
 #endif /* DOS */
 
+#if defined(MAIKO_ENABLE_NETHUB)
+const char *nethubHelpstring =
+ "\
+ -nh-host dodo-host        Hostname for Dodo Nethub (no networking if missing)\n\
+ -nh-port port-number      Port for Dodo Nethub (optional, default: 3333)\n\
+ -nh-mac XX-XX-XX-XX-XX-XX Machine-ID for Maiko-VM (optional, default: CA-FF-EE-12-34-56) \n\
+ -nh-loglevel level        Loglevel for Dodo networking (0..2, optional, default: 0)\n\
+ ";
+#else
+const char *nethubHelpstring = "";
+#endif
+
+#if defined(MAIKO_EMULATE_TIMER_INTERRUPTS) || defined(MAIKO_EMULATE_ASYNC_INTERRUPTS)
+extern int insnsCountdownForTimerAsyncEmulation;
+#endif
+
 /************************************************************************/
 /*									*/
 /*		     M A I N   E N T R Y   P O I N T			*/
@@ -304,7 +320,7 @@ int main(int argc, char *argv[])
     perror("Name of executable not found.");
   } else if (dld_init(dld_find_executable(argv[0])) != 0) {
     dld_perror("Can't init DLD.");
-  };
+  }
 #endif /* MAIKO_ENABLE_FOREIGN_FUNCTION_INTERFACE */
 
 #ifdef XWINDOW
@@ -333,7 +349,7 @@ int main(int argc, char *argv[])
   }
 
   if (argv[i] && ((strcmp(argv[i], "-help") == 0) || (strcmp(argv[i], "-HELP") == 0))) {
-    fprintf(stderr, "%s", helpstring);
+    fprintf(stderr, "%s%s", helpstring, nethubHelpstring);
     exit(0);
   }
 
@@ -356,7 +372,7 @@ int main(int argc, char *argv[])
   }
   if (access(sysout_name, R_OK)) {
     perror("Couldn't find a sysout to run");
-    fprintf(stderr, "%s", helpstring);
+    fprintf(stderr, "%s%s", helpstring, nethubHelpstring);
     exit(1);
   }
   /* OK, sysout name is now in sysout_name, and i is moved past a supplied name */
@@ -454,6 +470,80 @@ int main(int argc, char *argv[])
 #endif /* MAIKO_ENABLE_ETHERNET */
 
     }
+
+#ifdef MAIKO_ENABLE_NETHUB
+    else if (!strcmp(argv[i], "-nh-host")) {
+      if (argc > ++i) {
+        setNethubHost(argv[i]);
+      } else {
+        fprintf(stderr, "Missing argument after -nh-host\n");
+        exit(1);
+      }
+    }
+    else if (!strcmp(argv[i], "-nh-port")) {
+      if (argc > ++i) {
+        errno = 0;
+        tmpint = strtol(argv[i], (char **)NULL, 10);
+        if (errno == 0 && tmpint > 0) {
+          setNethubPort(tmpint);
+        } else {
+          fprintf(stderr, "Bad value for -nh-port\n");
+          exit(1);
+        }
+      } else {
+        fprintf(stderr, "Missing argument after -nh-port\n");
+        exit(1);
+      }
+    }
+    else if (!strcmp(argv[i], "-nh-mac")) {
+      if (argc > ++i) {
+        int b0, b1, b2, b3, b4, b5;
+        if (sscanf(argv[i], "%x-%x-%x-%x-%x-%x",  &b0, &b1, &b2, &b3, &b4, &b5) == 6) {
+          setNethubMac(b0, b1, b2, b3, b4, b5);
+        } else {
+          fprintf(stderr, "Invalid argument for -nh-mac\n");
+          exit(1);
+        }
+      } else {
+        fprintf(stderr, "Missing argument after -nh-mac\n");
+        exit(1);
+      }
+    }
+    else if (!strcmp(argv[i], "-nh-loglevel")) {
+      if (argc > ++i) {
+        errno = 0;
+        tmpint = strtol(argv[i], (char **)NULL, 10);
+        if (errno == 0 && tmpint >= 0) {
+          setNethubLogLevel(tmpint);
+        } else {
+          fprintf(stderr, "Bad value for -nh-loglevel\n");
+          exit(1);
+        }
+      } else {
+        fprintf(stderr, "Missing argument after -nh-loglevel\n");
+        exit(1);
+      }
+    }
+#endif /* MAIKO_ENABLE_NETHUB */
+
+#if defined(MAIKO_EMULATE_TIMER_INTERRUPTS) || defined(MAIKO_EMULATE_ASYNC_INTERRUPTS)
+    else if (!strcmp(argv[i], "-intr-emu-insns")) {
+      if (argc > ++i) {
+        errno = 0;
+        tmpint = strtol(argv[i], (char **)NULL, 10);
+        if (errno == 0 && tmpint > 1000) {
+          insnsCountdownForTimerAsyncEmulation = tmpint;
+        } else {
+          fprintf(stderr, "Bad value for -intr-emu-insns (integer > 1000)\n");
+          exit(1);
+        }
+      } else {
+        fprintf(stderr, "Missing argument after -intr-emu-insns\n");
+        exit(1);
+      }
+    }
+#endif
+
     /* diagnostic flag for big vmem write() calls */
     else if (!strcmp(argv[i], "-xpages")) {
       if (argc > ++i) {
@@ -491,6 +581,10 @@ int main(int argc, char *argv[])
   init_ether(); /* modified by kiuchi Nov. 4 */
 #endif          /* MAIKO_ENABLE_ETHERNET */
 
+#ifdef MAIKO_ENABLE_NETHUB
+  connectToHub();
+#endif
+
 #ifdef DOS
   init_host_filesystem();
 #else

src/misc7.c

@@ -77,7 +77,7 @@ LispPTR N_OP_misc7(LispPTR arg1, LispPTR arg2, LispPTR arg3, LispPTR arg4, LispP
   case OP_ERASE: GETWORDBASEWORD(base, offset) = bmdata & ~bmmask; break;
   case OP_READ: break;
   default: GETWORDBASEWORD(base, offset) = bmdata | bmmask;
-  };
+  }
 
 
 #ifdef XWINDOW

src/mvs.c

@@ -274,7 +274,6 @@ void simulate_unbind(FX2 *frame, int unbind_count, FX2 *returner) {
       ; /* find the binding mark */
     value = (int)*stackptr;
     lastpvar = (LispPTR *)((DLword *)frame + FRAMESIZE + 2 + GetLoWord(value));
-    ;
     bindnvalues = (~value) >> 16;
     for (value = bindnvalues; --value >= 0;) { *--lastpvar = 0xffffffff; }
     /* This line caused \NSMAIL.READ.HEADING to smash memory, */

src/osmsg.c

@@ -143,7 +143,7 @@ gotpty:
 #ifdef DEBUG
     perror("fcntl F_SETOWN of log PTY");
 #endif
-  };
+  }
   FD_SET(LogFileFd, &LispReadFds);
   flush_pty();
 #endif