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Notes For V3.1-0

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RESTRICTION: The FP15 and XVM features of the PDP-15 are only partially
debugged.  Do NOT enable these features for normal operations.

1. New Features in 3.1-0

1.1 SCP and libraries

- Added simulated Ethernet support for VMS, FreeBSD, Mac OS/X.
- Added status return to tmxr_putc_ln.
- Added sim_putchar_s to handle possible output stalls.

1.2 All DECtapes

- Added "DECtape off reel" error stop.

1.3 All Asynchronous Consoles

- Added support for output congestion stall if using a Telnet connection.

1.4 PDP-1

- Added Type 23 parallel drum support.

1.5 PDP-8

- Added instruction history.
- Added TSC8-75 option support for ETOS.
- Added TD8E DECtape support.

1.6 PDP-18b

- Added instruction history.
- Changed PDP-9, PDP-15 API default to enabled.

1.7 PDP-11

- Added support for 18b only Qbus devices.
- Formalized bus and addressing definitions.
- Added control to enable/disable autoconfiguration.
- Added stub support for second Unibus Ethernet controller.

1.7 Interdata 32b

- Added instruction history.

1.8 Eclipse

- Added floating point support.
- Added programmable interval timer support.

1.9 H316

- Added DMA/DMC support.
- Added fixed head disk support.
- Added moving head disk support.
- Added magtape support.

1.10 IBM 1130 (Brian Knittel)

- Added support for physical card reader, using the Cardread
interface (www.ibm1130.org/sim/downloads).
- Added support for physical printer (flushes output buffer after
each line).

2. Bugs Fixed in 3.1-0

2.1 SCP and libraries

- Fixed numerous bugs in Ethernet library.

2.2 All DECtapes

- Fixed reverse checksum value in 'read all' mode.
- Simplified (and sped up) timing.

2.3 PDP-8

- Fixed bug in RX28 read status (found by Charles Dickman).
- Fixed RX28 double density write.

2.4 PDP-18b

- Fixed autoincrement bug in PDP-4, PDP-7, PDP-9.

2.5 PDP-11/VAX

- Revised RQ MB->LBN conversion for greater accuracy.
- Fixed bug in IO configuration (found by David Hittner).
- Fixed bug with multiple RQ RAUSER drives.
- Fixed bug in second Qbus Ethernet controller interrupts.

2.6 Nova/Eclipse

- Fixed bugs in DKP flag clear, map setup, map usage (Charles Owen).
- Fixed bug in MT, reset completes despite I/O reset (Charles Owen).
- Fixed bug in MT, space operations return word count (Charles Owen).

2.7 IBM 1130 (Brian Knittel)

- Fixed bug in setting carry bit in subtract and subtract double.
- Fixed timing problem in console printer simulation.

2.8 1620

- Fixed bug in branch digit (found by Dave Babcock).

3. New Features in 3.0 vs prior releases

3.1 SCP and Libraries

- Added ASSIGN/DEASSIGN (logical name) commands.
- Changed RESTORE to unconditionally detach files.
- Added E11 and TPC format support to magtape library.
- Fixed bug in SHOW CONNECTIONS.
- Added USE_ADDR64 support.

3.2 All magtapes

- Magtapes support SIMH format, E11 format, and TPC format (read only).
- SET <tape_unit> FORMAT=format sets the specified tape unit's format.
- SHOW <tape_unit> FORMAT displays the specified tape unit's format.
- Tape format can also be set as part of the ATTACH command, using
  the -F switch.

3.3 VAX

- VAX can be compiled without USE_INT64.
- If compiled with USE_INT64 and USE_ADDR64, RQ and TQ controllers support
  files > 2GB.
- VAX ROM has speed control (SET ROM DELAY/NODELAY).

3.4 PDP-1

- Added block loader format support to LOAD.
- Changed BOOT PTR to allow loading of all of the first bank of memory.
- The LOAD command takes an optional argument specifying the memory field
  to be loaded.
- The PTR BOOT command takes its starting memory field from the TA (address
  switch) register.

3.5 PDP-18b Family

- Added PDP-4 EAE support.
- Added PDP-15 FP15 support.
- Added PDP-15 XVM support.
- Added PDP-15 "re-entrancy ECO".
- Added PDP-7, PDP-9, PDP-15 hardware RIM loader support in BOOT PTR.

4. Bugs Fixed in 3.0 vs prior releases

4.1 SCP and Libraries

- Fixed end of file problem in dep, idep.
- Fixed handling of trailing spaces in dep, idep.

4.2 VAX

- Fixed CVTfi bug: integer overflow not set if exponent out of range
- Fixed EMODx bugs:
  o First and second operands reversed
  o Separated fraction received wrong exponent
  o Overflow calculation on separated integer incorrect
  o Fraction not set to zero if exponent out of range
- Fixed interval timer and ROM access to pass power-up self-test even on very
  fast host processors (fixes from Mark Pizzolato).
- Fixed bug in user disk size (found by Chaskiel M Grundman).

4.3 1401

- Fixed mnemonic, instruction lengths, and reverse scan length check bug for MCS.
- Fixed MCE bug, BS off by 1 if zero suppress.
- Fixed chaining bug, D lost if return to SCP.
- Fixed H branch, branch occurs after continue.
- Added check for invalid 8 character MCW, LCA.
- Fixed magtape load-mode end of record response.
- Revised fetch to model hardware more closely.
- Fixed tape read end-of-record handling based on real 1401.
- Added diagnostic read (space forward).

4.4 Nova

- Fixed DSK variable size interaction with restore.
- Fixed bug in DSK set size routine.

4.5 PDP-1

- Fixed DT variable size interaction with restore.
- Updated CPU, line printer, standard devices to detect indefinite I/O wait.
- Fixed incorrect logical, missing activate, break in drum simulator.
- Fixed bugs in instruction decoding, overprinting for line printer.
- Fixed system hang if continue after PTR error.
- Fixed PTR to start/stop on successive rpa instructions.

4.6 PDP-11

- Fixed DT variable size interaction with restore.
- Fixed bug in MMR1 update (found by Tim Stark).
- Added XQ features and fixed bugs:
  o Corrected XQ interrupts on IE state transition (code by Tom Evans).
  o Added XQ interrupt clear on soft reset.
  o Removed XQ interrupt when setting XL or RL (multiple people).
  o Added SET/SHOW XQ STATS.
  o Added SHOW XQ FILTERS.
  o Added ability to split received packet into multiple buffers.
  o Added explicit runt and giant packet processing.
- Fixed bug in user disk size (found by Chaskiel M Grundman).

4.7 PDP-18B

- Fixed DT, RF variable size interaction with restore.
- Fixed MT bug in MTTR.
- Fixed bug in PDP-4 line printer overprinting.
- Fixed bug in PDP-15 memory protect/skip interaction.
- Fixed bug in RF set size routine.
- Increased PTP TIME for PDP-15 operating systems.
- Fixed priorities in PDP-15 API (differs from PDP-9).
- Fixed sign handling in PDP-15 EAE unsigned mul/div (differs from PDP-9).
- Fixed bug in CAF, clears API subsystem.

4.8 PDP-8

- Fixed DT, DF, RF, RX variable size interaction with restore.
- Fixed MT bug in SKTR.
- Fixed bug in DF, RF set size routine.

4.9 HP2100

- Fixed bug in DP (13210A controller only), DQ read status.
- Fixed bug in DP, DQ seek complete.
- Fixed DR drum sizes.
- Fixed DR variable capacity interaction with SAVE/RESTORE.

4.10 GRI

- Fixed bug in SC queue pointer management.

4.11 PDP-10

- Fixed bug in RP read header.

4.12 Ibm1130

- Fixed bugs found by APL 1130.

4.13 Altairz80

- Fixed bug in real-time clock on Windows host.

4.14 1620

- Fixed bug in immediate index add (found by Michael Short).
This commit is contained in:
Bob Supnik
2003-12-31 11:49:00 -08:00
committed by Mark Pizzolato
parent b2101ecdd4
commit 1da2d9452d
140 changed files with 17663 additions and 16338 deletions
Download Patch File Download Diff File Expand all files Collapse all files

58
VAX/vax_cpu.c
View File

@@ -1,6 +1,6 @@
/* vax_cpu.c: VAX CPU simulator
Copyright (c) 1998-2003, Robert M Supnik
Copyright (c) 1998-2004, Robert M Supnik
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
@@ -25,6 +25,10 @@
cpu CVAX central processor
31-Dec-03 RMS Fixed bug in set_cpu_hist
21-Dec-03 RMS Added autoconfiguration controls
29-Oct-03 RMS Fixed WriteB declaration (found by Mark Pizzolato)
23-Sep-03 RMS Revised instruction history for dynamic sizing
17-May-03 RMS Fixed operand order in EMODx
23-Apr-03 RMS Revised for 32b/64b t_addr
05-Jan-02 RMS Added memory size restore support
@@ -172,7 +176,8 @@
Write (va + 4, rh, L_LONG, WA); } \
else { R[rn] = rl; R[rnplus1] = rh; }
#define HIST_SIZE 4096
#define HIST_MIN 128
#define HIST_MAX 65536
struct InstHistory {
int32 iPC;
int32 PSL;
@@ -217,10 +222,11 @@ int32 mchk_va, mchk_ref; /* mem ref param */
int32 ibufl, ibufh; /* prefetch buf */
int32 ibcnt, ppc; /* prefetch ctl */
int32 cpu_log = 0; /* logging */
int32 autcon_enb = 1; /* autoconfig enable */
jmp_buf save_env;
REG *pcq_r = NULL; /* PC queue reg ptr */
int32 pcq[PCQ_SIZE] = { 0 }; /* PC queue */
static struct InstHistory hst[HIST_SIZE] = { { 0 } }; /* instruction history */
struct InstHistory *hst = NULL; /* instruction history */
const uint32 byte_mask[33] = { 0x00000000,
0x00000001, 0x00000003, 0x00000007, 0x0000000F,
@@ -312,7 +318,7 @@ extern int32 intexc (int32 vec, int32 cc, int32 ipl, int ei);
extern int32 Read (uint32 va, int32 lnt, int32 acc);
extern void Write (uint32 va, int32 val, int32 lnt, int32 acc);
extern int32 ReadB (uint32 pa);
extern int32 WriteB (uint32 pa, int32 val);
extern void WriteB (uint32 pa, int32 val);
extern int32 Test (uint32 va, int32 acc, int32 *status);
extern int32 ReadLP (uint32 pa);
extern int32 eval_int (void);
@@ -321,6 +327,8 @@ extern void set_map_reg (void);
extern void rom_wr (int32 pa, int32 val, int32 lnt);
extern uint16 drom[NUM_INST][MAX_SPEC + 1];
extern t_stat show_iospace (FILE *st, UNIT *uptr, int32 val, void *desc);
extern t_stat set_autocon (UNIT *uptr, int32 val, char *cptr, void *desc);
extern t_stat show_autocon (FILE *st, UNIT *uptr, int32 val, void *desc);
t_stat cpu_reset (DEVICE *dptr);
t_stat cpu_boot (int32 unitno, DEVICE *dptr);
@@ -392,6 +400,7 @@ REG cpu_reg[] = {
{ BRDATA (PCQ, pcq, 16, 32, PCQ_SIZE), REG_RO+REG_CIRC },
{ HRDATA (PCQP, pcq_p, 6), REG_HRO },
{ HRDATA (BADABO, badabo, 32), REG_HRO },
{ FLDATA (AUTOCON, autcon_enb, 0), REG_HRO },
{ HRDATA (WRU, sim_int_char, 8) },
{ NULL } };
@@ -406,6 +415,10 @@ MTAB cpu_mod[] = {
NULL, &show_iospace },
{ MTAB_XTD|MTAB_VDV|MTAB_NMO, 0, "HISTORY", "HISTORY",
&cpu_set_hist, &cpu_show_hist },
{ MTAB_XTD|MTAB_VDV, 1, "AUTOCONFIG", "AUTOCONFIG",
&set_autocon, &show_autocon },
{ MTAB_XTD|MTAB_VDV, 0, NULL, "NOAUTOCONFIG",
&set_autocon, NULL },
{ MTAB_XTD|MTAB_VDV, 0, NULL, "VIRTUAL", &cpu_show_virt },
{ 0 } };
@@ -999,16 +1012,14 @@ else { numspec = numspec & DR_NSPMASK; /* get # specifiers */
/* Optionally record instruction history */
if (hst_lnt) {
struct InstHistory *h = &hst[hst_p];
int32 i;
hst_p = (hst_p + 1) % HIST_SIZE;
h->iPC = fault_PC;
h->PSL = PSL | cc;
h->opc = opc;
h->brdest = brdisp + PC;
hst[hst_p].iPC = fault_PC;
hst[hst_p].PSL = PSL | cc;
hst[hst_p].opc = opc;
hst[hst_p].brdest = brdisp + PC;
for (i = 0; i < (numspec & DR_NSPMASK); i++)
h->opnd[i] = opnd[i];
hst[hst_p].opnd[i] = opnd[i];
hst_p = hst_p + 1;
if (hst_p >= hst_lnt) hst_p = 0;
}
/* Dispatch to instructions */
@@ -2446,11 +2457,20 @@ int32 i, lnt;
t_stat r;
if (cptr == NULL) {
for (i = 0; i < HIST_SIZE; i++) hst[i].iPC = 0;
for (i = 0; i < hst_lnt; i++) hst[i].iPC = 0;
hst_p = 0;
return SCPE_OK; }
lnt = (int32) get_uint (cptr, 10, HIST_SIZE, &r);
if (r != SCPE_OK) return SCPE_ARG;
hst_lnt = lnt;
lnt = (int32) get_uint (cptr, 10, HIST_MAX, &r);
if ((r != SCPE_OK) || (lnt && (lnt < HIST_MIN))) return SCPE_ARG;
hst_p = 0;
if (hst_lnt) {
free (hst);
hst_lnt = 0;
hst = NULL; }
if (lnt) {
hst = calloc (sizeof (struct InstHistory), lnt);
if (hst == NULL) return SCPE_MEM;
hst_lnt = lnt; }
return SCPE_OK;
}
@@ -2463,9 +2483,9 @@ struct InstHistory *h;
extern char *opcode[];
if (hst_lnt == 0) return SCPE_NOFNC; /* enabled? */
di = hst_p + HIST_SIZE - hst_lnt; /* work forward */
di = hst_p; /* work forward */
for (k = 0; k < hst_lnt; k++) { /* print specified */
h = &hst[(di++) % HIST_SIZE]; /* entry pointer */
h = &hst[(di++) % hst_lnt]; /* entry pointer */
if (h->iPC == 0) continue; /* filled in? */
fprintf(st, "%08X %08X ", h->iPC, h->PSL); /* PC, PSL */
numspec = drom[h->opc][0] & DR_NSPMASK; /* #specifiers */