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sub reg,reg
is much faster than
mov reg,0
that is why I use that to set something to zero, also, I want ds to be zero and you can't do this:
mov ds,0 or this sub ds,ds
so I need to set bx to zero then move it to ds to make ds zero. (sorry if I misunderstood what you were saying, I'm not quite sure if that was what you meant)
Here is the output:
twelve dw "12" ; another var
mov ax,12 ; decimal value
ax 12: 0000000000001100
call Ascii ; procedure is above (grabs from digitTable)
Ascii ax: 0000000000001110
mov ah,'1' ; ax="12"
mov al,'2'
12 ax: 0011000100110010
mov ax,twelve ; the value of twelve, twelve="12" (a word made above)
twelve ax: 0011000100110010
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