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SCP: Fixed typo in sim_card.h #504

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SCP: Fixed typo in sim_card.h #504

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0fd9542
SCP: Clean up comments on sim_card.[ch] on format of card decks.
rcornwell Oct 7, 2025
570c48e
KA10: Removed stray tabs.
rcornwell Oct 7, 2025
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4 changes: 2 additions & 2 deletions PDP10/kx10_cpu.c
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Original file line number Diff line number Diff line change
Expand Up @@ -781,7 +781,7 @@ DEVICE cpu_dev = {
#if PIDP10
/* Update MI register if address matches */
#define UPDATE_MI(a) if (!MI_flag && a == AS) { \
MI = MB; \
MI = MB; \
}
#else
#define UPDATE_MI(a)
Expand Down Expand Up @@ -2331,7 +2331,7 @@ int Mem_write(int flag, int cur_context) {
if (sim_brk_summ && sim_brk_test(last_addr, SWMASK('W')))
watch_stop = 1;
M[last_addr] = MB;
UPDATE_MI(last_addr);
UPDATE_MI(last_addr);
modify = 0;
return 0;
}
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8 changes: 5 additions & 3 deletions sim_card.c
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Expand Up @@ -33,9 +33,11 @@
First characters 6789----
Second character 21012345
111
Top 4 bits of second character are 0.
It is unlikely that any other format could
look like this.
The lower order 4 bits of first word are all
zero. It is unlikely that any other format could
look like this. An ASCII card could match this
if it is all blank, but the trailing return would
cause it to fail this test.

BCD Format:
Each record variable length (80 chars or less).
Expand Down
15 changes: 9 additions & 6 deletions sim_card.h
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Expand Up @@ -30,12 +30,15 @@

Binary Card format:
Each record 160 characters.
First character 21012345
111
Second characters 6789----
Top 4 bits of second character are 0.
It is unlikely that ascii text or BCD format
text could produce similar profile.
First characters 6789----
Second character 21012345
111

The lower order 4 bits of first word are all
zero. It is unlikely that any other format could
look like this. An ASCII card could match this
if it is all blank, but the trailing return would
cause it to fail this test.

BCD Format:
Each record variable length (80 chars or less).
Expand Down
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