Thread: dividing usgigned/signed byte

bnum1 db 25 bnum2 db 17 bnum3 db 8 bnum4 db 17 bnum5 db -6 bnum6 db -19
wans12=289
unsigned
; bans18 = wans12 / bnum3 ; brem18 = modulus (wans12 / bnum3) keep getting wrong answer these
0x804926a <bans16>: 3
0x804926b <bans17>: 2
0x804926c <bans18>: 4
0x804926d <brem18>: 1
0x804926e <bans19>: -2
0x804926f <bans20>: 3
0x8049270 <bans21>: 6
0x8049271 <brem21>: 0

; unsigned byte division
; bans16 = bnum1 / bnum3
; bans17 = bnum4 / bnum3
; bans18 = wans12 / bnum3
; brem18 = modulus (wans12 / bnum3)
mov al,[bnum1]
mov ah,0
div byte [bnum3]
mov [bans16],al
mov al,[bnum4]
mov ah,0
div byte [bnum3]
mov [bans17],al
mov al,[wans12]
mov ah,0
div byte [bnum3]
mov [bans18],al
mov [brem18],ah

mixing signed , unsigned types can of worms.
you'd better ask @ programming forum.

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