.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .lar2

.lar2:
				! bx, descriptor address
				! ax, index
	pop	cx
	pop	dx		! base address
	push	cx
	push	si
	mov	si,dx
	sub     ax,(bx)
	mov     cx,4(bx)
	imul    cx
	add     si,ax
	sar     cx,1
	jnb     1f
	xorb    ah,ah
	lodsb
	pop	si
	pop	bx
	push    ax
	jmp     bx
1:
	pop	dx		! saved si
	mov	ax,4(bx)
	pop	bx		! return address
	sub     sp,ax
	mov	ax,di		! save di
	mov     di,sp
	rep movs
	mov	di,ax
	mov	si,dx
	jmp     bx