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IMLAC: Fix two minor bugs.

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- Display PC masked to be inside core memory.
- Do not sign extend characters read from TTY.
This commit is contained in:
Lars Brinkhoff 2020-06-16 10:26:10 +02:00
parent a91679d6f5
commit ee3bd8f39c
2 changed files with 3 additions and 3 deletions
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4
imlac/imlac_dp.c
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@ -148,8 +148,8 @@ dp_iot (uint16 insn, uint16 AC)
DPC = 0; DPC = 0;
} }
if ((insn & 0772) == 0002) { /* DLA */ if ((insn & 0772) == 0002) { /* DLA */
sim_debug (DBG, &dp_dev, "DPC set to %06o\n", AC); sim_debug (DBG, &dp_dev, "DPC set to %06o\n", AC & memmask);
DPC |= AC; DPC |= AC & memmask;
} }
if ((insn & 0771) == 0011) { /* CTB */ if ((insn & 0771) == 0011) { /* CTB */
; ;

2
imlac/imlac_tty.c
View file

@ -124,7 +124,7 @@ tty_r_svc(UNIT *uptr)
return SCPE_OK; return SCPE_OK;
if (uptr->fileref != NULL) { if (uptr->fileref != NULL) {
char buf; unsigned char buf;
if (sim_fread (&buf, 1, 1, uptr->fileref) == 1) { if (sim_fread (&buf, 1, 1, uptr->fileref) == 1) {
sim_debug (DBG, &tty_dev, "Received character %03o\n", buf); sim_debug (DBG, &tty_dev, "Received character %03o\n", buf);
RBUF = buf; RBUF = buf;