_strcat.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 10:57:44 2001

;--------------------------------------------------------
	.module _strcat
	
.flat24 on		; 24 bit flat addressing
dpx = 0x93		; dpx register unknown to assembler
dps = 0x86		; dps register unknown to assembler
dpl1 = 0x84		; dpl1 register unknown to assembler
dph1 = 0x85		; dph1 register unknown to assembler
dpx1 = 0x95		; dpx1 register unknown to assembler
ap = 0x9C		; ap register unknown to assembler
;--------------------------------------------------------
; Public variables in this module
;--------------------------------------------------------
	.globl _strcat_PARM_2
	.globl _strcat
;--------------------------------------------------------
; special function registers
;--------------------------------------------------------
;--------------------------------------------------------
; special function bits 
;--------------------------------------------------------
;--------------------------------------------------------
; internal ram data
;--------------------------------------------------------
	.area DSEG    (DATA)
;--------------------------------------------------------
; overlayable items in internal ram 
;--------------------------------------------------------
	.area OSEG    (OVR,DATA)
;--------------------------------------------------------
; indirectly addressable internal ram data
;--------------------------------------------------------
	.area ISEG    (DATA)
;--------------------------------------------------------
; bit data
;--------------------------------------------------------
	.area BSEG    (BIT)
;--------------------------------------------------------
; external ram data
;--------------------------------------------------------
	.area XSEG    (XDATA)
_strcat_PARM_2::
	.ds 4
_strcat_dst_1_1::
	.ds 4
_strcat_cp_1_1::
	.ds 4
;--------------------------------------------------------
; global & static initialisations
;--------------------------------------------------------
	.area GSINIT  (CODE)
	.area GSFINAL (CODE)
	.area GSINIT  (CODE)
;--------------------------------------------------------
; Home
;--------------------------------------------------------
	.area HOME	 (CODE)
	.area CSEG    (CODE)
;--------------------------------------------------------
; code
;--------------------------------------------------------
	.area CSEG    (CODE)
;	_strcat.c 26
;	genFunction 
;	-----------------------------------------
;	 function strcat
;	-----------------------------------------
_strcat:
	ar2 = 0x02
	ar3 = 0x03
	ar4 = 0x04
	ar5 = 0x05
	ar6 = 0x06
	ar7 = 0x07
	ar0 = 0x00
	ar1 = 0x01
;	_strcat.c 38
;	genReceive 
	push	b
	push	dpx
	push	dph
	push	dpl
	mov	dptr,#_strcat_dst_1_1
	pop	acc
	movx	@dptr,a
	pop	acc
	inc	dptr
	movx	@dptr,a
	pop	acc
	inc	dptr
	movx	@dptr,a
	pop	acc
	inc	dptr
	movx	@dptr,a
;	_strcat.c 33
;	genAssign 
	mov	dptr,#_strcat_dst_1_1
;	genAssign: resultIsFar = TRUE
;	genFarFarAssign
	movx	a,@dptr
	mov	r6,a
	inc	dptr
	movx	a,@dptr
	mov	r7,a
	inc	dptr
	movx	a,@dptr
	mov	r0,a
	inc	dptr
	movx	a,@dptr
	mov	r1,a
;	genLabel 
00101$:
;	genPointerGet 
;	genGenPointerGet 
	mov	dpl,r6
	mov	dph,r7
	mov	dpx,r0
	mov	b,r1
	lcall	__gptrget
;	genIfx 
; Peephole 105   removed redundant mov
	mov  r2,a
;	genIfxJump 
; Peephole 110   removed ljmp by inverse jump logic
	jz  00111$
00113$:
;	_strcat.c 34
;	genPlus 
;	tail increment optimized (range 3)
	inc	r6
	cjne	r6,#0x00,00101$
	inc	r7
	cjne	r7,#0x00,00101$
	inc	r0
;	did genPlusIncr
;	genGoto 
;	_strcat.c 36
;	genLabel 
; Peephole 132   changed ljmp to sjmp
	sjmp 00101$
00111$:
;	genAssign 
	mov	dptr,#_strcat_PARM_2
;	genAssign: resultIsFar = FALSE
	movx	a,@dptr
	mov	r2,a
	inc	dptr
	movx	a,@dptr
	mov	r3,a
	inc	dptr
	movx	a,@dptr
	mov	r4,a
	inc	dptr
	movx	a,@dptr
	mov	r5,a
;	genAssign 
;	genAssign: resultIsFar = TRUE
	mov	dptr,#_strcat_cp_1_1
	mov	a,r6
	movx	@dptr,a
	inc	dptr
	mov	a,r7
	movx	@dptr,a
	inc	dptr
	mov	a,r0
	movx	@dptr,a
	inc	dptr
	mov	a,r1
	movx	@dptr,a
;	genLabel 
00104$:
;	genPointerGet 
;	genGenPointerGet 
	mov	dpl,r2
	mov	dph,r3
	mov	dpx,r4
	mov	b,r5
	lcall	__gptrget
	mov	r6,a
;	genPlus 
	inc	r2
	cjne	r2,#0x00,00114$
	inc	r3
	cjne	r3,#0x00,00114$
	inc	r4
00114$:
;	did genPlusIncr
;	genPointerSet 
	mov     dps, #0x01
	mov     dptr, #_strcat_cp_1_1
	movx	a,@dptr
	mov	dpl,a
	inc	dptr
	movx	a,@dptr
	mov	dph,a
	inc	dptr
	movx	a,@dptr
	mov	dpx,a
	inc	dptr
	movx	a,@dptr
	mov	b,a
	mov	dps, #0x00
	mov	a,r6
	lcall	__gptrput
;	genPlus 
	mov	dptr,#_strcat_cp_1_1
;	Swapped plus args.
	movx	a,@dptr
	add	a,#0x01
	movx	@dptr,a
	inc	dptr
	movx	a,@dptr
	addc	a,#0x00
	movx	@dptr,a
	inc	dptr
	movx	a,@dptr
	addc	a,#0x00
	movx	@dptr,a
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
;	genIfx 
	mov	a,r6
;	genIfxJump 
	jz	00115$
	ljmp	00104$
00115$:
;	_strcat.c 38
;	genRet 
	mov     dps, #0x01
	mov     dptr, #_strcat_dst_1_1
	movx	a,@dptr
	mov	dpl,a
	inc	dptr
	movx	a,@dptr
	mov	dph,a
	inc	dptr
	movx	a,@dptr
	mov	dpx,a
	inc	dptr
	movx	a,@dptr
	mov	b,a
	mov	dps, #0x00
;	genLabel 
00107$:
;	genEndFunction 
	ret
	.area CSEG    (CODE)