-- this was causing the LISTENER_ORDER$ signals after DIAG
-- also was causing HELP to fail sporadically (HELP MTRESUME)
removed TB_xxx flags (identical to T_xxx)
added some eap hints
changed to pop the concealed stack earlier
changed LDLR/LDAR to load result from RP if ea is 7
changed STLR/STAR to store result in RP if ea is 7
added new trace flags for GET/PUT (unimplemented)
reworked ring/register fix so that Primos nevers sees RP faulted
but we don't have to do extra tests in the fetch loop
changed EAxxx routines to use RP segno when EA = register
added FP exception fault to ieeepr8 and all FP routines
added round flag to ieeepr8 (though not sure it's rounding correctly)
used gcov info to reorder some stuff in ea16s, ea32s, ea32r64r
changed warn() and fatal() to use get16t; prevpc might be a register
IMPORTANT NOTE: to compile with -O0, also use -DNOREG (gcc bug)
changed ARGT to add ring bits to LB & SB in brsave[]
major TRACE update, to debug Information tsrc$$ problem
changed MAXMB default for non-OSX platforms (PS3) to 32MB
changed B(I,D)(X,Y) instructions to increment/decrement inside if;
(avoids reloading values to test them) and removed B(X,Y)NE macros
changed default cpuid to 15 so real time clock is always set
use ppa instead of ppn to avoid << 10 on every memory reference
changed newkeys() so illegal keys give illegal instruction vs fatal()
removed hack to patch Primos for rev 23 SSSN check
added code to SSSN to skip the check loop immediately following
removed #ifdef FAST from a few places, just use the faster code
added code to LDA trace to also display as two octal bytes
added get32m & put32m: these always map
changed get32 and put32 to be inlined
changed mem[] references to MEM[] to allow experiments
tried using register for MEM pointer - not so great
tried using register for instcount - screwed up (very sluggish)
added INCRP macro - now does 32-bit increments of RP for speed
added ADDRP macro to return RP incremented by n (CGT)
changed globals to static (didn't help speed much - thought it might)
moved around some functions
changed shift instructions to create bitmask at runtime (faster)
manually inlined mathexception (but used inline keyword in later revs)
changed get16/put16 to get16t/put16t where address trap might occur
this eliminates ea<0 test for all other non-trappable get16/put16 calls
changed crs & crsl to macros to reference a union vs 2 distinct variables
changed crs and RP to be register variables (regs.h)
fixed tape drive problems
sent to Garth around 8/15/07
supports 512MB memory
device "terminate" call
added XED emulation
more FP changes
changed devmt to emulate Kennedy tape drive & controller
devmt changes to support higher revs / fix bugs
added IOTLB, mapio, and get/put16io macros so rev23 would boot
changed device drivers to go through IOTLB, not STLB
removed SVC Primos II emulation code
changed floating point register format to match memory
began PNC driver
put16r0 macro shortcuts like get16r0
branch instructions use inline code (macros) instead of gotos
devasr blocks when possible
lock disk files to prevent corruption from multiple emulators
devamlc select to ensure output socket buffer isn't full
devamlc partial write error is now a warning vs fatal
ECONNRESET test in devamlc (spurious emulator crashes)
lots of changes to PNC driver (not working yet)
added T_TERM for system terminal output tracing
added specific user tracing:
- 2-digit number after trace (user number)
- 6-digit octal number = OWNERL (for devices)
added specific procedure tracing
major bug in PCL: indirect bit offsets not working,
causing SAC JIM:PDALURW to be SAC JIM:PAUW
for R-mode MPY, do the math THEN generate the exception
DIV exception handling was wrong, code was wrong too
a few devasr changes
changed devamlc to always turn off parity instead of flipping it
writes tracing to a buffered log file instead of stderr
added clear of first 32K of physical memory to master clear
changed all exit() calls to fatal() calls
more changes to the devmt tape driver
need to restore interval timer when new process dispatched
process level was incorrect when new process dispatched
changes setting process abort flag in PCB when timer overflows
PX get/put must force R0 access for wait/ready list and PCB manipulations
restrict macro now accepts a program counter
get/put routines also accept a program counter (for ring #)
R-mode must use segment number in PBH for address calculations
more PCL work
more PX work
implemented direct ZCM
Primos load map handling to enhance traces
more PX/interrupt work
device initialization feature
standard/vectored interrupt handling
device polling
more C/L bit changes
work on BMxx instructions
lots of stupid work on JMP/JST - older DIAG routines are broken
