_strstr.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 10:57:40 2001

;--------------------------------------------------------
	.module _strstr
	
.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 _strstr_PARM_2
	.globl _strstr
;--------------------------------------------------------
; 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)
_strstr_PARM_2::
	.ds 4
_strstr_str1_1_1::
	.ds 4
_strstr_cp_1_1::
	.ds 4
_strstr_s1_1_1::
	.ds 4
_strstr_s2_1_1::
	.ds 4
_strstr_sloc0_1_0::
	.ds 1
_strstr_sloc1_1_0::
	.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)
;	_strstr.c 27
;	genFunction 
;	-----------------------------------------
;	 function strstr
;	-----------------------------------------
_strstr:
	ar2 = 0x02
	ar3 = 0x03
	ar4 = 0x04
	ar5 = 0x05
	ar6 = 0x06
	ar7 = 0x07
	ar0 = 0x00
	ar1 = 0x01
;	_strstr.c 0
;	genReceive 
	push	b
	push	dpx
	push	dph
	push	dpl
	mov	dptr,#_strstr_str1_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
;	_strstr.c 32
;	genAssign 
	mov	dptr,#_strstr_str1_1_1
;	genAssign: resultIsFar = TRUE
;	genFarFarAssign (390 auto-toggle fun)
	mov	dps, #0x21
	mov	dptr,#_strstr_cp_1_1
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	mov	dps, #0
;	_strstr.c 36
;	genAssign 
	mov	dptr,#_strstr_PARM_2
;	genAssign: resultIsFar = TRUE
;	genFarFarAssign (390 auto-toggle fun)
	mov	dps, #0x21
	mov	dptr,#_strstr_sloc1_1_0
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	mov	dps, #0
;	genPointerGet 
;	genGenPointerGet 
	mov     dps, #0x01
	mov     dptr, #_strstr_sloc1_1_0
	movx	a,@dptr
	dec	dps
	mov	dpl,a
	inc	dps
	inc	dptr
	movx	a,@dptr
	dec	dps
	mov	dph,a
	inc	dps
	inc	dptr
	movx	a,@dptr
	dec	dps
	mov	dpx,a
	inc	dps
	inc	dptr
	movx	a,@dptr
	mov	b,a
	mov	dps, #0x00
	lcall	__gptrget
;	genIfx 
; Peephole 105   removed redundant mov
	mov  r2,a
;	genIfxJump 
; Peephole 109   removed ljmp by inverse jump logic
	jnz  00122$
00123$:
;	_strstr.c 37
;	genRet 
	mov     dps, #0x01
	mov     dptr, #_strstr_str1_1_1
	movx	a,@dptr
	mov	dpl,a
	inc	dptr
	movx	a,@dptr
	mov	dph,a
	inc	dptr
	movx	a,@dptr
	mov	dpx,a
	inc	dptr
	movx	a,@dptr
	mov	b,a
	mov	dps, #0x00
	ljmp	00113$
;	_strstr.c 39
;	genLabel 
00122$:
;	genAssign 
	mov	dptr,#_strstr_str1_1_1
;	genAssign: resultIsFar = TRUE
;	genFarFarAssign (390 auto-toggle fun)
	mov	dps, #0x21
	mov	dptr,#_strstr_cp_1_1
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	mov	dps, #0
;	genLabel 
00110$:
;	genPointerGet 
;	genGenPointerGet 
	mov     dps, #0x01
	mov     dptr, #_strstr_cp_1_1
	movx	a,@dptr
	dec	dps
	mov	dpl,a
	inc	dps
	inc	dptr
	movx	a,@dptr
	dec	dps
	mov	dph,a
	inc	dps
	inc	dptr
	movx	a,@dptr
	dec	dps
	mov	dpx,a
	inc	dps
	inc	dptr
	movx	a,@dptr
	mov	b,a
; Peephole 220a removed bogus DPS set
	mov	dps, #0x01
	mov	dptr, #_strstr_sloc0_1_0
	dec	dps
	lcall	__gptrget
	mov	dps, #0x01
	movx	@dptr,a
	mov	dps, #0x00
;	genIfx 
	mov	dptr,#_strstr_sloc0_1_0
	movx	a,@dptr
;	genIfxJump 
	jnz	00124$
	ljmp	00112$
00124$:
;	_strstr.c 42
;	genAssign 
	mov	dptr,#_strstr_sloc1_1_0
;	genAssign: resultIsFar = TRUE
;	genFarFarAssign (390 auto-toggle fun)
	mov	dps, #0x21
	mov	dptr,#_strstr_s2_1_1
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	mov	dps, #0
;	_strstr.c 44
;	genAssign 
	mov	dptr,#_strstr_cp_1_1
;	genAssign: resultIsFar = TRUE
;	genFarFarAssign (390 auto-toggle fun)
	mov	dps, #0x21
	mov	dptr,#_strstr_s1_1_1
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	mov	dps, #0
;	genAssign 
	mov	dptr,#_strstr_s2_1_1
;	genAssign: resultIsFar = TRUE
;	genFarFarAssign
	movx	a,@dptr
	mov	r6,a
	inc	dptr
	movx	a,@dptr
	mov	r7,a
	inc	dptr
	movx	a,@dptr
	mov	r0,a
	inc	dptr
	movx	a,@dptr
	mov	r1,a
;	genLabel 
00105$:
;	genPointerGet 
;	genGenPointerGet 
	mov     dps, #0x01
	mov     dptr, #_strstr_s1_1_1
	movx	a,@dptr
	dec	dps
	mov	dpl,a
	inc	dps
	inc	dptr
	movx	a,@dptr
	dec	dps
	mov	dph,a
	inc	dps
	inc	dptr
	movx	a,@dptr
	dec	dps
	mov	dpx,a
	inc	dps
	inc	dptr
	movx	a,@dptr
	mov	b,a
	mov	dps, #0x00
	lcall	__gptrget
;	genIfx 
; Peephole 105   removed redundant mov
	mov  r2,a
;	genIfxJump 
; Peephole 110   removed ljmp by inverse jump logic
	jz  00107$
00125$:
;	genPointerGet 
;	genGenPointerGet 
	mov	dpl,r6
	mov	dph,r7
	mov	dpx,r0
	mov	b,r1
	lcall	__gptrget
;	genIfx 
; Peephole 105   removed redundant mov
	mov  r3,a
;	genIfxJump 
; Peephole 110   removed ljmp by inverse jump logic
	jz  00107$
00126$:
;	genMinus 
	clr	c
	mov	a,r2
	subb	a,r3
;	genIfx 
;	genIfxJump 
; Peephole 109   removed ljmp by inverse jump logic
	jnz  00107$
00127$:
;	_strstr.c 45
;	genPlus 
	mov	dptr,#_strstr_s1_1_1
;	Swapped plus args.
	movx	a,@dptr
	add	a,#0x01
	movx	@dptr,a
	inc	dptr
	movx	a,@dptr
	addc	a,#0x00
	movx	@dptr,a
	inc	dptr
	movx	a,@dptr
	addc	a,#0x00
	movx	@dptr,a
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
;	genPlus 
	inc	r6
	cjne	r6,#0x00,00128$
	inc	r7
	cjne	r7,#0x00,00128$
	inc	r0
00128$:
;	did genPlusIncr
;	genGoto 
	ljmp	00105$
;	genLabel 
00107$:
;	_strstr.c 47
;	genPointerGet 
;	genGenPointerGet 
	mov	dpl,r6
	mov	dph,r7
	mov	dpx,r0
	mov	b,r1
	lcall	__gptrget
;	genIfx 
; Peephole 105   removed redundant mov
	mov  r6,a
;	genIfxJump 
; Peephole 109   removed ljmp by inverse jump logic
	jnz  00109$
00129$:
;	_strstr.c 48
;	genRet 
	mov     dps, #0x01
	mov     dptr, #_strstr_cp_1_1
	movx	a,@dptr
	mov	dpl,a
	inc	dptr
	movx	a,@dptr
	mov	dph,a
	inc	dptr
	movx	a,@dptr
	mov	dpx,a
	inc	dptr
	movx	a,@dptr
	mov	b,a
	mov	dps, #0x00
;	genLabel 
; Peephole 132   changed ljmp to sjmp
	sjmp 00113$
00109$:
;	_strstr.c 50
;	genPlus 
	mov	dptr,#_strstr_cp_1_1
;	Swapped plus args.
	movx	a,@dptr
	add	a,#0x01
	movx	@dptr,a
	inc	dptr
	movx	a,@dptr
	addc	a,#0x00
	movx	@dptr,a
	inc	dptr
	movx	a,@dptr
	addc	a,#0x00
	movx	@dptr,a
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
;	genAssign 
	mov	dptr,#_strstr_cp_1_1
;	genAssign: resultIsFar = TRUE
;	genFarFarAssign (390 auto-toggle fun)
	mov	dps, #0x21
	mov	dptr,#_strstr_cp_1_1
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	inc	dptr
	inc	dptr
	movx	a,@dptr
	movx	@dptr,a
	mov	dps, #0
;	genGoto 
	ljmp	00110$
;	genLabel 
00112$:
;	_strstr.c 53
;	genRet 
; Peephole 181a   used 24 bit load of dptr
	mov  dptr,#0x0000
	mov	b,#0x00
;	genLabel 
00113$:
;	genEndFunction 
	ret
	.area CSEG    (CODE)