Category : C Source Code
Archive   : CEXPRESS.ZIP
Filename : PEEKB.ASM

 
Output of file : PEEKB.ASM contained in archive : CEXPRESS.ZIP
;unsigned char peekb(segment,offset);
; unsigned short segment,offset;

EXTRN _memory_model:byte

_TEXT SEGMENT BYTE PUBLIC 'CODE'
ASSUME CS:_TEXT
PUBLIC _peekb
_peekb proc near
mov bx,sp ;set stack frame
cmp _memory_model,0 ;near or far?
jle begin ;jump if near
inc bx ;else add 2 to BX
inc bx ;
begin: mov ax,ss:[bx+2] ;get segment
mov es,ax ;
mov di,ss:[bx+4] ;get offset
sub ah,ah ;
mov al,es:[di] ;
cmp _memory_model,0 ;quit
jle quit ;
db 0CBh ;RET far
quit: ret ;RET near
_peekb endp
_TEXT ENDS
END


  3 Responses to “Category : C Source Code
Archive   : CEXPRESS.ZIP
Filename : PEEKB.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/