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stdio: add "Accepted characters" comment section

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ref #64
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Virgil Dupras 2019-11-04 10:12:17 -05:00
parent 27149338e4
commit 41338a4b23
1 changed files with 9 additions and 0 deletions
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9
kernel/stdio.asm
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@ -11,6 +11,15 @@
;
; PutC: Write character specified in A onto the device.
;
; *** Accepted characters ***
;
; For now, we're in muddy waters in this regard. We try to stay close to ASCII.
; Anything over 0x7f is undefined. Both CR and LF are interpreted as "line end".
; Both BS and DEL mean "delete previous character".
;
; When outputting, newlines are marked by CR and LF. Outputting a character
; deletion is made through BS then space then BS.
;
; *** Defines ***
; STDIO_GETC: address of a GetC routine
; STDIO_PUTC: address of a PutC routine