folkert/simh-testsetgenerator
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 1

SCP: Add a special pseudo name "$" which is the value returned from the most recent EXAMINE command which can be used for register (or memory) indirect EXAMINE commands.

Browse source 
To examine the instruction which the PC points at:
   sim> EXAMINE PC
   sim> EXAMINE -m $
This commit is contained in:
Mark Pizzolato 2015-04-01 10:29:14 -07:00
parent 975327dcac
commit d84883a4ce
1 changed files with 34 additions and 24 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
scp.c
View file

@ -491,6 +491,7 @@ static int32 noqueue_time;
volatile int32 stop_cpu = 0;
static char **sim_argv;
t_value *sim_eval = NULL;
t_value sim_last_val;
FILE *sim_log = NULL; /* log file */
FILEREF *sim_log_ref = NULL; /* log file file reference */
FILE *sim_deb = NULL; /* debug file */
@ -696,6 +697,8 @@ static const char simh_help[] =
"++ but not including address+length\n"
"++STATE all registers in the device\n"
"++ALL all locations in the unit\n"
"++$ the last value displayed by an EXAMINE command\n"
" interpreted as an address\n"
"3Switches\n"
" Switches can be used to control the format of display information:\n\n"
/***************** 80 character line width template *************************/
@ -6279,7 +6282,7 @@ for (rptr = lowr; rptr <= highr; rptr++) {
else
Fprintf (ofile, "%s[%d]-%s[%d]: same as above\n", rptr->name, val_start+1, rptr->name, idx-1);
}
last_val = val;
sim_last_val = last_val = val;
val_start = idx;
reason = ex_reg (ofile, val, flag, rptr, idx);
if (reason != SCPE_OK)
@ -6637,7 +6640,7 @@ for (i = 0, j = addr; i < sim_emax; i++, j = j + dptr->aincr) {
}
}
}
sim_eval[i] = sim_eval[i] & mask;
sim_last_val = sim_eval[i] = sim_eval[i] & mask;
}
if ((reason != SCPE_OK) && (i == 0))
return reason;
@ -7072,10 +7075,16 @@ if (max && strncmp (cptr, "ALL", strlen ("ALL")) == 0) { /* ALL? */
*lo = 0;
*hi = max;
}
else {
if (strncmp (cptr, "$", strlen ("$")) == 0) { /* $? */
tptr = cptr + strlen ("$");
*hi = *lo = (t_addr)sim_last_val;
}
else {
if (dptr && sim_vm_parse_addr) /* get low */
*lo = sim_vm_parse_addr (dptr, (char *)cptr, (char **)&tptr);
else *lo = (t_addr) strtotv (cptr, &tptr, rdx);
else
*lo = (t_addr) strtotv (cptr, &tptr, rdx);
if (cptr == tptr) /* error? */
return NULL;
if ((*tptr == '-') || (*tptr == ':')) { /* range? */
@ -7097,6 +7106,7 @@ else {
}
else *hi = *lo;
}
}
if (term && (*tptr++ != term))
return NULL;
return tptr;