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IBM360: Fixed nop command on CDR.

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This commit is contained in:
Richard Cornwell
2021-10-23 22:30:00 -04:00
parent 8f504d234f
commit dee87e744b
1 changed files with 2 additions and 1 deletions
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3
IBM360/ibm360_cdr.c
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@@ -156,13 +156,14 @@ uint8 cdr_startcmd(UNIT *uptr, uint8 cmd) {
case 3: /* Control */
uptr->SNS = 0;
uptr->CMD &= ~(CDR_CMDMSK|CDR_CARD);
uptr->CMD &= ~(CDR_CMDMSK);
if (cmd == 0x3)
return SNS_CHNEND|SNS_DEVEND;
if ((cmd & 0x30) != 0x20 || (cmd & 0xc0) == 0xc0) {
uptr->SNS |= SNS_CMDREJ;
return SNS_CHNEND|SNS_DEVEND|SNS_UNITCHK;
}
uptr->CMD &= ~(CDR_CARD);
uptr->CMD |= (cmd & CDR_CMDMSK);
uptr->COL = 0;
sim_activate(uptr, 1000); /* Start unit off */