Category : Network Files
Archive   : PKTD11A.ZIP
Filename : GETDIG.ASM

 
Output of file : GETDIG.ASM contained in archive : PKTD11A.ZIP
;put into the public domain by Russell Nelson, [email protected]

public get_digit
get_digit:
;enter with al = character
;return nc, al=digit, or cy if not a digit.
cmp al,'0' ;decimal digit?
jb get_digit_1 ;no.
cmp al,'9' ;. .?
ja get_digit_2 ;no.
sub al,'0'
clc
ret
get_digit_2:
cmp al,'a' ;hex digit?
jb get_digit_3
cmp al,'f' ;hex digit?
ja get_digit_3
sub al,'a'-10
clc
ret
get_digit_3:
cmp al,'A' ;hex digit?
jb get_digit_1
cmp al,'F' ;hex digit?
ja get_digit_1
sub al,'A'-10
clc
ret
get_digit_1:
stc
ret




  3 Responses to “Category : Network Files
Archive   : PKTD11A.ZIP
Filename : GETDIG.ASM
”

  1. Daniel says:
    January 27, 2013 at 3:59 pm

    Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

  2. Joshie says:
    March 18, 2014 at 4:57 pm

    This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

  3. DiskingRound says:
    January 14, 2015 at 10:57 pm

    But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/