_divuint.asm

很少见的源码公开的msc51和z80的c编译器。

;--------------------------------------------------------
; File Created by SDCC : FreeWare ANSI-C Compiler
; Version 2.3.0 Thu Sep 20 10:57:12 2001

;--------------------------------------------------------
	.module _divuint
	
;--------------------------------------------------------
; Public variables in this module
;--------------------------------------------------------
	.globl __divuint_PARM_2
	.globl __divuint
;--------------------------------------------------------
; special function registers
;--------------------------------------------------------
;--------------------------------------------------------
; special function bits 
;--------------------------------------------------------
;--------------------------------------------------------
; internal ram data
;--------------------------------------------------------
	.area DSEG    (DATA)
;--------------------------------------------------------
; overlayable items in internal ram 
;--------------------------------------------------------
	.area _DUMMY
	.area	OSEG    (OVR,DATA)
__divuint_PARM_2::
	.ds 2
;--------------------------------------------------------
; indirectly addressable internal ram data
;--------------------------------------------------------
	.area ISEG    (DATA)
;--------------------------------------------------------
; bit data
;--------------------------------------------------------
	.area BSEG    (BIT)
__divuint_c_1_1::
	.ds 1
;--------------------------------------------------------
; external ram data
;--------------------------------------------------------
	.area XSEG    (XDATA)
;--------------------------------------------------------
; global & static initialisations
;--------------------------------------------------------
	.area GSINIT  (CODE)
	.area GSFINAL (CODE)
	.area GSINIT  (CODE)
;--------------------------------------------------------
; Home
;--------------------------------------------------------
	.area HOME	 (CODE)
	.area CSEG    (CODE)
;--------------------------------------------------------
; code
;--------------------------------------------------------
	.area CSEG    (CODE)
;------------------------------------------------------------
;Allocation info for local variables in function '_divuint'
;------------------------------------------------------------
;	_divuint.c 28
;	-----------------------------------------
;	 function _divuint
;	-----------------------------------------
__divuint:
	ar2 = 0x02
	ar3 = 0x03
	ar4 = 0x04
	ar5 = 0x05
	ar6 = 0x06
	ar7 = 0x07
	ar0 = 0x00
	ar1 = 0x01
;	_divuint.c 53
	mov	r2,dpl
	mov	r3,dph
;	_divuint.c 30
	mov	r4,#0x00
	mov	r5,#0x00
;	_divuint.c 38
	mov	r6,#0x10
00105$:
;	_divuint.c 40
	mov	a,r3
	rl	a
	anl	a,#0x01
	mov	r7,a
;	_divuint.c 41
	mov	a,r3
	xch	a,r2
	add	a,acc
	xch	a,r2
	rlc	a
	mov	r3,a
;	_divuint.c 42
	mov	a,r5
	xch	a,r4
	add	a,acc
	xch	a,r4
	rlc	a
	mov	r5,a
;	_divuint.c 43
	mov	a,r7
; Peephole 110   removed ljmp by inverse jump logic
	jz  00102$
00114$:
;	_divuint.c 44
	orl	ar4,#0x01
00102$:
;	_divuint.c 46
	clr	c
	mov	a,r4
	subb	a,__divuint_PARM_2
	mov	a,r5
	subb	a,(__divuint_PARM_2 + 1)
; Peephole 132   changed ljmp to sjmp
; Peephole 160   removed sjmp by inverse jump logic
	jc   00106$
00115$:
;	_divuint.c 47
	clr	c
	mov	a,r4
	subb	a,__divuint_PARM_2
	mov	r4,a
	mov	a,r5
	subb	a,(__divuint_PARM_2 + 1)
	mov	r5,a
;	_divuint.c 49
	orl	ar2,#0x01
00106$:
;	_divuint.c 51
; Peephole 132   changed ljmp to sjmp
; Peephole 205   optimized misc jump sequence
	djnz r6,00105$
00116$:
00117$:
;	_divuint.c 53
	mov	dpl,r2
	mov	dph,r3
00108$:
	ret
	.area CSEG    (CODE)