_fs2ulong.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 10:57:34 2001

;--------------------------------------------------------
	.module _fs2ulong
	
.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 ___fs2ulong
;--------------------------------------------------------
; 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)
___fs2ulong_fl1_1_1::
	.ds 4
___fs2ulong_exp_1_1::
	.ds 2
___fs2ulong_l_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)
;	_fs2ulong.c 38
;	genFunction 
;	-----------------------------------------
;	 function __fs2ulong
;	-----------------------------------------
___fs2ulong:
	ar2 = 0x02
	ar3 = 0x03
	ar4 = 0x04
	ar5 = 0x05
	ar6 = 0x06
	ar7 = 0x07
	ar0 = 0x00
	ar1 = 0x01
;	_fs2ulong.c 0
;	genReceive 
	mov	r2,dpl
	mov	r3,dph
	mov	r4,dpx
	mov	r5,b
;	_fs2ulong.c 44
;	genPointerSet 
	mov	dptr,#___fs2ulong_fl1_1_1
	mov	a,r2
	movx	@dptr,a
	inc	dptr
	mov	a,r3
	movx	@dptr,a
	inc	dptr
	mov	a,r4
	movx	@dptr,a
	inc	dptr
	mov	a,r5
	movx	@dptr,a
;	_fs2ulong.c 46
;	genPointerGet 
;	genFarPointerGet
	mov	dptr,#___fs2ulong_fl1_1_1
	movx	a,@dptr
	inc	dptr
	mov	r6,a
	movx	a,@dptr
	inc	dptr
	mov	r7,a
	movx	a,@dptr
	inc	dptr
	mov	r0,a
	movx	a,@dptr
	mov	r1,a
;	genIfx 
	mov	a,r6
	orl	a,r7
	orl	a,r0
	orl	a,r1
;	genIfxJump 
; Peephole 110   removed ljmp by inverse jump logic
	jz  00101$
00110$:
;	genPointerGet 
;	genFarPointerGet
	mov	dptr,#___fs2ulong_fl1_1_1
	movx	a,@dptr
	inc	dptr
	mov	r6,a
	movx	a,@dptr
	inc	dptr
	mov	r7,a
	movx	a,@dptr
	inc	dptr
	mov	r0,a
	movx	a,@dptr
;	genGetHbit 
; Peephole 105   removed redundant mov
	mov  r1,a
	rl	a
	anl	a,#0x01
;	genIfx 
; Peephole 105   removed redundant mov
	mov  r6,a
;	genIfxJump 
; Peephole 110   removed ljmp by inverse jump logic
	jz  00102$
00111$:
;	genLabel 
00101$:
;	_fs2ulong.c 47
;	genRet 
; Peephole 181a   used 24 bit load of dptr
	mov  dptr,#0x0000
	mov	b,#0x00
	ljmp	00106$
;	genLabel 
00102$:
;	_fs2ulong.c 49
;	genAssign 
;	genAssign: resultIsFar = TRUE
	mov	dptr,#___fslt_PARM_2
; Peephole 101   removed redundant mov
; Peephole 180   changed mov to clr
	clr  a
	movx @dptr,a
	inc  dptr
	movx @dptr,a
	inc	dptr
	mov	a,#0x80
	movx	@dptr,a
	inc	dptr
	mov	a,#0x4F
	movx	@dptr,a
;	genCall 
	mov	dpl,r2
	mov	dph,r3
	mov	dpx,r4
	mov	b,r5
	lcall	___fslt
	mov	r2,dpl
;	genIfx 
	mov	a,r2
;	genIfxJump 
; Peephole 109   removed ljmp by inverse jump logic
	jnz  00105$
00112$:
;	_fs2ulong.c 50
;	genRet 
; Peephole 182a   used 24 bit load of dptr
	mov  dptr,#((0xFF << 16) + (0xFF << 8) + 0xFF)
	mov	b,#0xFF
	ljmp	00106$
;	genLabel 
00105$:
;	_fs2ulong.c 52
;	genPointerGet 
;	genFarPointerGet
	mov	dptr,#___fs2ulong_fl1_1_1
	movx	a,@dptr
	inc	dptr
	mov	r2,a
	movx	a,@dptr
	inc	dptr
	mov	r3,a
	movx	a,@dptr
	inc	dptr
	mov	r4,a
	movx	a,@dptr
	mov	r5,a
;	genRightShift 
;	genRightShiftLiteral (23), size 4
;	genRightShiftLiteral wimping out
	mov	b,#0x18
	sjmp	00114$
00113$:
	clr	c
	mov	a,r5
	rrc	a
	mov	r5,a
	mov	a,r4
	rrc	a
	mov	r4,a
	mov	a,r3
	rrc	a
	mov	r3,a
	mov	a,r2
	rrc	a
	mov	r2,a
00114$:
	djnz	b,00113$
;	genAnd 
;	genMinus 
; Peephole 3.c   changed mov to clr
; Peephole 3.b   changed mov to clr
	clr  a
	mov  r3,a
	mov  r4,a
	mov  r5,a
	mov  a,r2
	add	a,#0x6a
	mov	r2,a
	mov	a,r3
	addc	a,#0xff
	mov	r3,a
	mov	a,r4
	addc	a,#0xff
	mov	r4,a
	mov	a,r5
	addc	a,#0xff
	mov	r5,a
;	genCast 
	mov	dptr,#___fs2ulong_exp_1_1
	mov	a,r2
	movx	@dptr,a
	inc	dptr
	mov	a,r3
	movx	@dptr,a
;	_fs2ulong.c 53
;	genPointerGet 
;	genFarPointerGet
	mov	dptr,#___fs2ulong_fl1_1_1
	movx	a,@dptr
	inc	dptr
	mov	r2,a
	movx	a,@dptr
	inc	dptr
	mov	r3,a
	movx	a,@dptr
	inc	dptr
	mov	r4,a
	movx	a,@dptr
	mov	r5,a
;	genAnd 
	anl	ar4,#0x7F
	mov	r5,#0x00
;	genOr 
	mov	dptr,#___fs2ulong_l_1_1
	mov	a,r2
	movx	@dptr,a
	inc	dptr
	mov	a,r3
	movx	@dptr,a
;	better literal OR.
	mov	a,r4
	orl	a, #0x80
	inc	dptr
	movx	@dptr,a
	inc	dptr
	mov	a,r5
	movx	@dptr,a
;	_fs2ulong.c 55
;	genUminus 
	mov	dptr,#___fs2ulong_exp_1_1
	movx	a,@dptr
	setb	c
	cpl	a
	addc	a,#0
	mov	r2,a
	inc	dptr
	movx	a,@dptr
	cpl	a
	addc	a,#0
	mov	r3,a
;	genRightShift 
;	genSignedRightShift 
	mov	b,r2
	inc	b
	mov	dptr,#___fs2ulong_l_1_1
	movx	a,@dptr
	mov	r2,acc
	inc	dptr
	movx	a,@dptr
	mov	r3,acc
	inc	dptr
	movx	a,@dptr
	mov	r4,acc
	inc	dptr
	movx	a,@dptr
	mov	r5,acc
	movx	a,@dptr
; Peephole 206   removed redundant mov a,a
	rlc	a
	mov	ov,c
	sjmp	00116$
00115$:
	mov	c,ov
	mov	a,r5
	rrc	a
	mov	r5,a
	mov	a,r4
	rrc	a
	mov	r4,a
	mov	a,r3
	rrc	a
	mov	r3,a
	mov	a,r2
	rrc	a
	mov	r2,a
00116$:
	djnz	b,00115$
;	genAssign 
;	genAssign: resultIsFar = TRUE
	mov	dptr,#___fs2ulong_l_1_1
	mov	a,r2
	movx	@dptr,a
	inc	dptr
	mov	a,r3
	movx	@dptr,a
	inc	dptr
	mov	a,r4
	movx	@dptr,a
	inc	dptr
	mov	a,r5
	movx	@dptr,a
;	_fs2ulong.c 57
;	genAssign 
	mov	dptr,#___fs2ulong_l_1_1
;	genAssign: resultIsFar = TRUE
;	genFarFarAssign
	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
;	genRet 
	mov	dpl,r2
	mov	dph,r3
	mov	dpx,r4
	mov	b,r5
;	genLabel 
00106$:
;	genEndFunction 
	ret
	.area CSEG    (CODE)