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- stdlib segment para public 'slcode'
- assume cs:stdlib
- ;
- ;
- ; union- Unions one set with another.
- ;
- ; inputs:
- ;
- ; ES:DI- Points at the destination set (at its mask byte).
- ; DX:SI- Points at the mask byte of the source set.
- ;
- ;
- ;
- public sl_union
- ;
- sl_union proc far
- push ds
- push ax
- push cx
- push si
- push di
- mov ds, dx
- ;
- mov al, es:[di] ;Get mask bytes
- mov ah, [si]
- add si, 8 ;Skip to start of set
- add di, 8
- mov cx, 256
- unionLp: test ah, [si]
- jz Next
- or es:[di], al
- Next: inc si
- inc di
- loop unionLp
- ;
- pop di
- pop si
- pop cx
- pop ax
- pop ds
- ret
- sl_union endp
- ;
- ;
- stdlib ends
- end
-