22f
; Align
; Aligns a far pointer to aval bytes boundary, useful for optimizing 386
; stores and fetches. Returns the new updated pointer.
;
; void char far* align_mem(void far* p, unsigned aval)

IFNDEF model
	model EQU <small>
ENDIF

	.DOSSEG
	.MODEL model, C
	.386

	.CODE
	PUBLIC align_mem

align_mem PROC C,
	pt:DWORD, aval:WORD

	mov	ax, aval
	dec	ax
align_lp:
	test	word ptr[pt], ax
	jz	aligned_ok
	inc	word ptr[pt]
	jmp	align_lp
aligned_ok:
	mov	dx, word ptr[pt + 2]
	mov	ax, word ptr[pt]
	ret

align_mem ENDP

	END
.

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