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

	! #bytes in ax
.rol:
	pop     dx              ! return address
	cmp     ax,2
	jne     1f
	pop     ax
	pop     cx
	rol     ax,cl
	push    ax
	jmp     dx
1:
	cmp     ax,4
	jne     9f
	pop     cx
	jcxz    2f
	pop     ax
	pop     bx
3:
	sal     ax,1
	rcl     bx,1
	adc     ax,0
	loop    3b
	push    bx
	push    ax
2:
	jmp     dx
9:
.extern EODDZ
.extern .trp
	mov     ax,EODDZ
	push    dx
	jmp     .trp