mirror of
https://github.com/prirun/p50em.git
synced 2026-03-10 12:18:24 +00:00
Changes to get rev 18 to boot
This commit is contained in:
Jim
74
em.c
74
em.c
@@ -81,12 +81,36 @@ PRIMOS II is being phased out. To boot PRIMOS return to CP mode.
|
||||
OK:
|
||||
---------------
|
||||
|
||||
Instruction details are spewed to trace.log depending on the trace flags.
|
||||
TRACING:
|
||||
|
||||
The emulator by default is built with tracing code included.
|
||||
Instruction details are spewed to trace.log depending on the trace
|
||||
flags, set with -trace. If -trace is not used, only TRACEA (trace
|
||||
all) traces are enabled.
|
||||
|
||||
To activate more tracing, use -trace followed by flags to indicate
|
||||
which parts you want to trace, for example -trace map will activate
|
||||
all T_MAP traces.
|
||||
|
||||
The "flush" trace flag turns on line-by-line trace file flushing.
|
||||
This is useful if the emulator itself is crashing, eg, with a (Unix)
|
||||
seg fault.
|
||||
|
||||
The "off" trace flag can be added to initially disable tracing.
|
||||
Ctrl-t at the console will toggle tracing on or off. To trace only a
|
||||
particular instruction, use "off", then do gvp->traceflags =
|
||||
gvp->savedtraceflags at the beginning of the instruction emulation.
|
||||
To trace from an instruction forward, do the previous and add
|
||||
gvp->tracetriggered = 1; this simulates the Ctrl-t.
|
||||
|
||||
-DNOTRACE disables tracing altogether and increases performance.
|
||||
|
||||
---------------
|
||||
|
||||
IMPORTANT NOTE: this only runs on a big-endian machine, like the Prime.
|
||||
|
||||
NOTE: basic and dbasic execute R-mode instructions from the register file
|
||||
with TRACE ON!
|
||||
NOTE: basic and dbasic execute R-mode instructions from the Prime
|
||||
register file with the basic statement TRACE ON!
|
||||
|
||||
*/
|
||||
|
||||
@@ -541,11 +565,11 @@ typedef struct {
|
||||
FILE *tracefile; /* trace.log file */
|
||||
int traceflags; /* each bit is a trace flag */
|
||||
int savetraceflags;
|
||||
short traceuser; /* OWNERL to trace */
|
||||
unsigned short traceuser; /* OWNERL to trace */
|
||||
short traceseg; /* RPH segment # to trace */
|
||||
short numtraceprocs; /* # of procedures we're tracing */
|
||||
unsigned long traceinstcount; /* only trace if instcount > this */
|
||||
short tracetriggered; /* Ctrl-T toggles tracing */
|
||||
short tracetriggered; /* Ctrl-T on console toggles tracing */
|
||||
short tracerpqx; /* rpq index to store next RP */
|
||||
unsigned int tracerpq[MAXRPQ];/* last 16 locations executed */
|
||||
#endif
|
||||
@@ -2483,6 +2507,23 @@ static memdump(int start, int end) {
|
||||
}
|
||||
|
||||
|
||||
static dumpregs() {
|
||||
int rs, i;
|
||||
unsigned int val;
|
||||
unsigned short v1, v2;
|
||||
|
||||
TRACEA("\nREGISTER DUMP:\n");
|
||||
for (rs=0; rs<REGSETS; rs++) {
|
||||
TRACEA("Register set %d:\n", rs);
|
||||
for (i=0; i<32; i++) {
|
||||
val = regs.rs[rs][i];
|
||||
v1 = val >> 16;
|
||||
v2 = val & 0xFFFF;
|
||||
TRACEA("'%02o: %06o %06o %04x %04x\n", i, v1, v2, v1, v2);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static dumpsegs() {
|
||||
short seg,nsegs,i,page,segno;
|
||||
unsigned short pte,xxx;
|
||||
@@ -3030,7 +3071,7 @@ static pcl (ea_t ecbea) {
|
||||
occurs while accessing the arguments here, it will return to ARGT
|
||||
in the main emulator loop and nothing will be logged. */
|
||||
|
||||
#ifndef NOTRACE
|
||||
#if 0
|
||||
if (TRACEUSER && ((ecbea & 0xFFFFFFF) == tnou_ea || (ecbea & 0xFFFFFFF) == tnoua_ea)) {
|
||||
ea = *(unsigned int *)(crs+SB) + ecb[4];
|
||||
utempa = get16(get32(ea)); /* 1st arg: userid */
|
||||
@@ -3772,7 +3813,7 @@ static lpsw() {
|
||||
unsigned short m;
|
||||
|
||||
TRACE(T_PX, "\n%o/%o: LPSW issued\n", RPH, RPL);
|
||||
TRACE(T_PX, "LPSW: before load, RPH=%o, RPL=%o, keys=%o, modals=%o\n", RPH, RPL, crs[KEYS], crs[MODALS]);
|
||||
TRACE(T_PX, "LPSW: before load, RPH=%o, RPL=%o, keys=%o, modals=%o, owner=%o/%o\n", RPH, RPL, crs[KEYS], crs[MODALS], crs[OWNERH], crs[OWNERL]);
|
||||
TRACE(T_PX, "LPSW: crs=%d, ownerl[2]=%o, keys[2]=%o, modals[2]=%o, ownerl[3]=%o, keys[3]=%o, modals[3]=%o\n", crs==regs.rs16[2]? 2:3, regs.rs16[2][OWNERL], regs.rs16[2][KEYS], regs.rs16[2][MODALS], regs.rs16[3][OWNERL], regs.rs16[3][KEYS], regs.rs16[3][MODALS]);
|
||||
|
||||
ea = apea(NULL);
|
||||
@@ -3780,18 +3821,33 @@ static lpsw() {
|
||||
RPL = get16(INCVA(ea,1));
|
||||
newkeys(get16(INCVA(ea,2)));
|
||||
m = get16(INCVA(ea,3));
|
||||
#if 0
|
||||
|
||||
/* NOTE: rev 18 changes the register set to 010. On old Primes,
|
||||
there are 2 user register sets, numbered 000 (0) and 010 (2). I
|
||||
think 010 is the initial register set, so it works okay, but in
|
||||
the emulator, register sets are numbered 0-7, and register set 2
|
||||
is the 3rd register set. On old Primes, there are only 2
|
||||
register sets initialized, so using RS 3 in the emulator bombs
|
||||
because the dtar registers aren't initialized by Primos. So I
|
||||
commented the register switch code out. This might cause a diag
|
||||
to fail - not sure. But the Prime instruction set guide says not
|
||||
to change the current register set field in the modals; only the
|
||||
dispatcher (microcode / emulator) is supposed to fiddle this. */
|
||||
|
||||
if ((m & 0340) != (crs[MODALS] & 0340)) {
|
||||
TRACE(T_PX, "LPSW: WARNING: changed current register set: current modals=%o, new modals=%o\n", crs[MODALS], m);
|
||||
/* not sure about doing this... */
|
||||
printf("WARNING: LPSW changed current register set: current modals=%o, new modals=%o\n", crs[MODALS], m);
|
||||
crsl = regs.sym.userregs[(m & 0340) >> 5];
|
||||
}
|
||||
#endif
|
||||
invalidate_brp();
|
||||
|
||||
crs[MODALS] = m;
|
||||
gvp->inhcount = 1;
|
||||
|
||||
TRACE(T_PX, "LPSW: NEW RPH=%o, RPL=%o, keys=%o, modals=%o\n", RPH, RPL, crs[KEYS], crs[MODALS]);
|
||||
TRACE(T_PX, "LPSW: NEW RPH=%o, RPL=%o, keys=%o, modals=%o, owner=%o/%o\n", RPH, RPL, crs[KEYS], crs[MODALS], crs[OWNERH], crs[OWNERL]);
|
||||
TRACE(T_PX, "LPSW: crs=%d, ownerl[2]=%o, keys[2]=%o, modals[2]=%o, ownerl[3]=%o, keys[3]=%o, modals[3]=%o\n", crs==regs.rs16[2]? 2:3, regs.rs16[2][OWNERL], regs.rs16[2][KEYS], regs.rs16[2][MODALS], regs.rs16[3][OWNERL], regs.rs16[3][KEYS], regs.rs16[3][MODALS]);
|
||||
if (crs[MODALS] & 020)
|
||||
TRACE(T_PX, "Mapped I/O enabled\n");
|
||||
@@ -4714,7 +4770,7 @@ main (int argc, char **argv) {
|
||||
else
|
||||
TRACEA("Tracing enabled for all users\n");
|
||||
if (gvp->traceinstcount != 0)
|
||||
TRACEA("Tracing enabled after instruction %u\n", gvp->traceinstcount);
|
||||
TRACEA("Tracing enabled after instruction %lu\n", gvp->traceinstcount);
|
||||
for (i=0; i<gvp->numtraceprocs; i++) {
|
||||
for (j=0; j<numsyms; j++) {
|
||||
if (strcasecmp(mapsym[j].symname, traceprocs[i].name) == 0 && mapsym[j].symtype == 'e') {
|
||||
|
||||
11
emdev.h
11
emdev.h
@@ -1376,10 +1376,21 @@ int devmt (int class, int func, int device) {
|
||||
/* initclock sets Primos' real-time clock variable */
|
||||
|
||||
initclock(ea_t datnowea) {
|
||||
short olddatnow;
|
||||
int datnow, i;
|
||||
time_t unixtime;
|
||||
struct tm *tms;
|
||||
|
||||
/* for older processors (before 9950), don't set DATNOW initially.
|
||||
This has to be done with the SE(TTIME) command on the console
|
||||
after a coldstart to release users waiting on CLDSEM in older
|
||||
versions of Primos */
|
||||
|
||||
if (cpuid < 15) {
|
||||
olddatnow = get32r0(datnowea);
|
||||
if (olddatnow == 0)
|
||||
return;
|
||||
}
|
||||
unixtime = time(NULL);
|
||||
tms = localtime(&unixtime);
|
||||
datnow = tms->tm_year<<25 | (tms->tm_mon+1)<<21 | tms->tm_mday<<16 | ((tms->tm_hour*3600 + tms->tm_min*60 + tms->tm_sec)/4);
|
||||
|
||||
Reference in New Issue
Block a user