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SCP: Clean up comments on sim_card.[ch] on format of card decks.

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This commit is contained in:
Richard Cornwell 2025-10-07 13:28:04 -04:00 committed by Mark Pizzolato
parent 4562c3cf17
commit 0d56d53740
2 changed files with 14 additions and 9 deletions
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8
sim_card.c
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@ -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).

15
sim_card.h
View File

@ -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).