;--------------------------------------------------------
; File Created by SDCC : free open source ANSI-C Compiler
; Version 2.8.0 #5117 (Nov 26 2024) (UNIX)
; This file was generated Tue Nov 26 08:32:02 2024
;--------------------------------------------------------
	.module tancotf
	.optsdcc -mmcs51 --model-small
	
;--------------------------------------------------------
; Public variables in this module
;--------------------------------------------------------
	.globl _tancotf
;--------------------------------------------------------
; special function registers
;--------------------------------------------------------
	.area RSEG    (DATA)
;--------------------------------------------------------
; special function bits
;--------------------------------------------------------
	.area RSEG    (DATA)
;--------------------------------------------------------
; overlayable register banks
;--------------------------------------------------------
	.area REG_BANK_0	(REL,OVR,DATA)
	.ds 8
;--------------------------------------------------------
; internal ram data
;--------------------------------------------------------
	.area DSEG    (DATA)
;--------------------------------------------------------
; overlayable items in internal ram 
;--------------------------------------------------------
	.area OSEG    (OVR,DATA)
;--------------------------------------------------------
; indirectly addressable internal ram data
;--------------------------------------------------------
	.area ISEG    (DATA)
;--------------------------------------------------------
; absolute internal ram data
;--------------------------------------------------------
	.area IABS    (ABS,DATA)
	.area IABS    (ABS,DATA)
;--------------------------------------------------------
; bit data
;--------------------------------------------------------
	.area BSEG    (BIT)
;--------------------------------------------------------
; paged external ram data
;--------------------------------------------------------
	.area PSEG    (PAG,XDATA)
;--------------------------------------------------------
; external ram data
;--------------------------------------------------------
	.area XSEG    (XDATA)
;--------------------------------------------------------
; absolute external ram data
;--------------------------------------------------------
	.area XABS    (ABS,XDATA)
;--------------------------------------------------------
; external initialized ram data
;--------------------------------------------------------
	.area XISEG   (XDATA)
	.area HOME    (CODE)
	.area GSINIT0 (CODE)
	.area GSINIT1 (CODE)
	.area GSINIT2 (CODE)
	.area GSINIT3 (CODE)
	.area GSINIT4 (CODE)
	.area GSINIT5 (CODE)
	.area GSINIT  (CODE)
	.area GSFINAL (CODE)
	.area CSEG    (CODE)
;--------------------------------------------------------
; global & static initialisations
;--------------------------------------------------------
	.area HOME    (CODE)
	.area GSINIT  (CODE)
	.area GSFINAL (CODE)
	.area GSINIT  (CODE)
;--------------------------------------------------------
; Home
;--------------------------------------------------------
	.area HOME    (CODE)
	.area HOME    (CODE)
;--------------------------------------------------------
; code
;--------------------------------------------------------
	.area CSEG    (CODE)
;------------------------------------------------------------
;Allocation info for local variables in function 'tancotf'
;------------------------------------------------------------
;iscotan                   Allocated to stack - offset -4
;x                         Allocated to stack - offset 1
;f                         Allocated to stack - offset 5
;g                         Allocated to stack - offset 9
;xn                        Allocated to stack - offset 13
;xnum                      Allocated to stack - offset 17
;xden                      Allocated to stack - offset 21
;n                         Allocated to stack - offset 25
;sloc0                     Allocated to stack - offset 27
;------------------------------------------------------------
;	tancotf.c:42: float tancotf(const float x, const int iscotan)
;	-----------------------------------------
;	 function tancotf
;	-----------------------------------------
_tancotf:
	ar2 = 0x02
	ar3 = 0x03
	ar4 = 0x04
	ar5 = 0x05
	ar6 = 0x06
	ar7 = 0x07
	ar0 = 0x00
	ar1 = 0x01
	push	_bp
	mov	_bp,sp
	push	dpl
	push	dph
	push	b
	push	acc
	mov	a,sp
	add	a,#0x1e
	mov	sp,a
;	tancotf.c:47: if (fabsf(x) > YMAX)
	mov	r0,_bp
	inc	r0
	mov	dpl,@r0
	inc	r0
	mov	dph,@r0
	inc	r0
	mov	b,@r0
	inc	r0
	mov	a,@r0
	lcall	_fabsf
	mov	r6,dpl
	mov	r7,dph
	mov	r2,b
	mov	r3,a
	mov	a,#0x45
	push	acc
	mov	a,#0xC9
	push	acc
	mov	a,#0x08
	push	acc
	clr	a
	push	acc
	mov	dpl,r6
	mov	dph,r7
	mov	b,r2
	mov	a,r3
	lcall	___fsgt
	mov	r2,dpl
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	a,r2
	jz	00102$
;	tancotf.c:49: errno = ERANGE;
	mov	_errno,#0x22
	clr	a
	mov	(_errno + 1),a
;	tancotf.c:50: return 0.0;
	mov	dptr,#(0x00&0x00ff)
	clr	a
	mov	b,a
	ljmp	00115$
00102$:
;	tancotf.c:54: n=(x*TWO_O_PI+(x>0.0?0.5:-0.5)); /*works for +-x*/
	mov	r0,_bp
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	dptr,#0x223F
	mov	b,#0xF9
	mov	a,#0x83
	lcall	___fsmul
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	push	ar2
	push	ar3
	push	ar4
	push	ar5
	clr	a
	push	acc
	push	acc
	push	acc
	push	acc
	mov	r0,_bp
	inc	r0
	mov	dpl,@r0
	inc	r0
	mov	dph,@r0
	inc	r0
	mov	b,@r0
	inc	r0
	mov	a,@r0
	lcall	___fsgt
	mov	r6,dpl
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	pop	ar5
	pop	ar4
	pop	ar3
	pop	ar2
	mov	a,r6
	jz	00117$
	mov	a,_bp
	add	a,#0x1b
	mov	r0,a
	mov	@r0,#0x3F
	inc	r0
	mov	@r0,#0x00
	inc	r0
	mov	@r0,#0x00
	inc	r0
	mov	@r0,#0x00
	sjmp	00118$
00117$:
	mov	a,_bp
	add	a,#0x1b
	mov	r0,a
	mov	@r0,#0xBF
	inc	r0
	mov	@r0,#0x00
	inc	r0
	mov	@r0,#0x00
	inc	r0
	mov	@r0,#0x00
00118$:
	mov	a,_bp
	add	a,#0x1b
	mov	r0,a
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	dpl,r2
	mov	dph,r3
	mov	b,r4
	mov	a,r5
	lcall	___fsadd
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	dpl,r2
	mov	dph,r3
	mov	b,r4
	mov	a,r5
	lcall	___fs2sint
	mov	r2,dpl
	mov	r3,dph
	mov	a,_bp
	add	a,#0x19
	mov	r0,a
	mov	@r0,ar2
	inc	r0
	mov	@r0,ar3
;	tancotf.c:55: xn=n;
	mov	a,_bp
	add	a,#0x19
	mov	r0,a
	mov	dpl,@r0
	inc	r0
	mov	dph,@r0
	lcall	___sint2fs
	mov	r4,dpl
	mov	r5,dph
	mov	r6,b
	mov	r7,a
	mov	a,_bp
	add	a,#0x0d
	mov	r0,a
	mov	@r0,ar4
	inc	r0
	mov	@r0,ar5
	inc	r0
	mov	@r0,ar6
	inc	r0
	mov	@r0,ar7
;	tancotf.c:57: xnum=(int)x;
	mov	r0,_bp
	inc	r0
	mov	dpl,@r0
	inc	r0
	mov	dph,@r0
	inc	r0
	mov	b,@r0
	inc	r0
	mov	a,@r0
	lcall	___fs2sint
	lcall	___sint2fs
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,_bp
	add	a,#0x11
	mov	r0,a
	mov	@r0,ar2
	inc	r0
	mov	@r0,ar3
	inc	r0
	mov	@r0,ar4
	inc	r0
	mov	@r0,ar5
;	tancotf.c:58: xden=x-xnum;
	mov	a,_bp
	add	a,#0x11
	mov	r0,a
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	r0,_bp
	inc	r0
	mov	dpl,@r0
	inc	r0
	mov	dph,@r0
	inc	r0
	mov	b,@r0
	inc	r0
	mov	a,@r0
	lcall	___fssub
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	a,_bp
	add	a,#0x15
	mov	r0,a
	mov	@r0,ar2
	inc	r0
	mov	@r0,ar3
	inc	r0
	mov	@r0,ar4
	inc	r0
	mov	@r0,ar5
;	tancotf.c:59: f=((xnum-xn*C1)+xden)-xn*C2;
	mov	a,_bp
	add	a,#0x0d
	mov	r0,a
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	dptr,#0xC93F
	clr	a
	mov	b,a
	lcall	___fsmul
	mov	r6,dpl
	mov	r7,dph
	mov	r2,b
	mov	r3,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	push	ar6
	push	ar7
	push	ar2
	push	ar3
	mov	a,_bp
	add	a,#0x11
	mov	r0,a
	mov	dpl,@r0
	inc	r0
	mov	dph,@r0
	inc	r0
	mov	b,@r0
	inc	r0
	mov	a,@r0
	lcall	___fssub
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	a,_bp
	add	a,#0x15
	mov	r0,a
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	dpl,r2
	mov	dph,r3
	mov	b,r4
	mov	a,r5
	lcall	___fsadd
	push	acc
	mov	a,_bp
	add	a,#0x1b
	mov	r0,a
	pop	acc
	mov	@r0,dpl
	inc	r0
	mov	@r0,dph
	inc	r0
	mov	@r0,b
	inc	r0
	mov	@r0,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	a,_bp
	add	a,#0x0d
	mov	r0,a
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	dptr,#0xFD39
	mov	b,#0xAA
	mov	a,#0x22
	lcall	___fsmul
	mov	r6,dpl
	mov	r7,dph
	mov	r2,b
	mov	r3,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	push	ar6
	push	ar7
	push	ar2
	push	ar3
	mov	a,_bp
	add	a,#0x1b
	mov	r0,a
	mov	dpl,@r0
	inc	r0
	mov	dph,@r0
	inc	r0
	mov	b,@r0
	inc	r0
	mov	a,@r0
	lcall	___fssub
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	a,_bp
	add	a,#0x05
	mov	r0,a
	mov	@r0,ar2
	inc	r0
	mov	@r0,ar3
	inc	r0
	mov	@r0,ar4
	inc	r0
	mov	@r0,ar5
;	tancotf.c:61: if (fabsf(f) < EPS)
	mov	a,_bp
	add	a,#0x05
	mov	r0,a
	mov	dpl,@r0
	inc	r0
	mov	dph,@r0
	inc	r0
	mov	b,@r0
	inc	r0
	mov	a,@r0
	lcall	_fabsf
	mov	r6,dpl
	mov	r7,dph
	mov	r2,b
	mov	r3,a
	mov	a,#0x39
	push	acc
	mov	a,#0x80
	push	acc
	clr	a
	push	acc
	push	acc
	mov	dpl,r6
	mov	dph,r7
	mov	b,r2
	mov	a,r3
	lcall	___fslt
	mov	r2,dpl
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	a,r2
	jz	00104$
;	tancotf.c:63: xnum = f;
	mov	a,_bp
	add	a,#0x05
	mov	r0,a
	mov	a,_bp
	add	a,#0x11
	mov	r1,a
	mov	a,@r0
	mov	@r1,a
	inc	r0
	inc	r1
	mov	a,@r0
	mov	@r1,a
	inc	r0
	inc	r1
	mov	a,@r0
	mov	@r1,a
	inc	r0
	inc	r1
	mov	a,@r0
	mov	@r1,a
;	tancotf.c:64: xden = 1.0;
	mov	a,_bp
	add	a,#0x15
	mov	r0,a
	mov	@r0,#0x3F
	inc	r0
	mov	@r0,#0x80
	inc	r0
	mov	@r0,#0x00
	inc	r0
	mov	@r0,#0x00
	ljmp	00105$
00104$:
;	tancotf.c:68: g = f*f;
	mov	a,_bp
	add	a,#0x05
	mov	r0,a
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	a,_bp
	add	a,#0x05
	mov	r0,a
	mov	dpl,@r0
	inc	r0
	mov	dph,@r0
	inc	r0
	mov	b,@r0
	inc	r0
	mov	a,@r0
	lcall	___fsmul
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	a,_bp
	add	a,#0x09
	mov	r0,a
	mov	@r0,ar2
	inc	r0
	mov	@r0,ar3
	inc	r0
	mov	@r0,ar4
	inc	r0
	mov	@r0,ar5
;	tancotf.c:69: xnum = P(f,g);
	mov	a,_bp
	add	a,#0x09
	mov	r0,a
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	dptr,#0xC4BD
	mov	b,#0x33
	mov	a,#0xB8
	lcall	___fsmul
	mov	r6,dpl
	mov	r7,dph
	mov	r2,b
	mov	r3,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	a,_bp
	add	a,#0x05
	mov	r0,a
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	dpl,r6
	mov	dph,r7
	mov	b,r2
	mov	a,r3
	lcall	___fsmul
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	a,_bp
	add	a,#0x05
	mov	r0,a
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	dpl,r2
	mov	dph,r3
	mov	b,r4
	mov	a,r5
	lcall	___fsadd
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	a,_bp
	add	a,#0x11
	mov	r0,a
	mov	@r0,ar2
	inc	r0
	mov	@r0,ar3
	inc	r0
	mov	@r0,ar4
	inc	r0
	mov	@r0,ar5
;	tancotf.c:70: xden = Q(g);
	mov	a,_bp
	add	a,#0x09
	mov	r0,a
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	dptr,#0x1F3C
	mov	b,#0x33
	mov	a,#0x75
	lcall	___fsmul
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	a,#0xBE
	push	acc
	mov	a,#0xDB
	push	acc
	mov	a,#0xB7
	push	acc
	mov	a,#0xAF
	push	acc
	mov	dpl,r2
	mov	dph,r3
	mov	b,r4
	mov	a,r5
	lcall	___fsadd
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	a,_bp
	add	a,#0x09
	mov	r0,a
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	dpl,r2
	mov	dph,r3
	mov	b,r4
	mov	a,r5
	lcall	___fsmul
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	a,#0x3F
	push	acc
	mov	a,#0x80
	push	acc
	clr	a
	push	acc
	push	acc
	mov	dpl,r2
	mov	dph,r3
	mov	b,r4
	mov	a,r5
	lcall	___fsadd
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	a,_bp
	add	a,#0x15
	mov	r0,a
	mov	@r0,ar2
	inc	r0
	mov	@r0,ar3
	inc	r0
	mov	@r0,ar4
	inc	r0
	mov	@r0,ar5
00105$:
;	tancotf.c:73: if(n&1)
	mov	a,_bp
	add	a,#0x19
	mov	r0,a
	mov	a,@r0
	jb	acc.0,00128$
	ljmp	00113$
00128$:
;	tancotf.c:76: if(iscotan) return (-xnum/xden);
	mov	a,_bp
	add	a,#0xfc
	mov	r0,a
	mov	a,@r0
	inc	r0
	orl	a,@r0
	jz	00107$
	mov	a,_bp
	add	a,#0x11
	mov	r0,a
	mov	ar2,@r0
	inc	r0
	mov	ar3,@r0
	inc	r0
	mov	ar4,@r0
	inc	r0
	mov	a,@r0
	cpl	acc.7
	mov	r5,a
	mov	a,_bp
	add	a,#0x15
	mov	r0,a
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	dpl,r2
	mov	dph,r3
	mov	b,r4
	mov	a,r5
	lcall	___fsdiv
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	dpl,r2
	mov	dph,r3
	mov	b,r4
	mov	a,r5
	ljmp	00115$
00107$:
;	tancotf.c:77: else return (-xden/xnum);
	mov	a,_bp
	add	a,#0x15
	mov	r0,a
	mov	ar2,@r0
	inc	r0
	mov	ar3,@r0
	inc	r0
	mov	ar4,@r0
	inc	r0
	mov	a,@r0
	cpl	acc.7
	mov	r5,a
	mov	a,_bp
	add	a,#0x11
	mov	r0,a
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	dpl,r2
	mov	dph,r3
	mov	b,r4
	mov	a,r5
	lcall	___fsdiv
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	dpl,r2
	mov	dph,r3
	mov	b,r4
	mov	a,r5
	ljmp	00115$
00113$:
;	tancotf.c:81: if(iscotan) return (xden/xnum);
	mov	a,_bp
	add	a,#0xfc
	mov	r0,a
	mov	a,@r0
	inc	r0
	orl	a,@r0
	jz	00110$
	mov	a,_bp
	add	a,#0x11
	mov	r0,a
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	a,_bp
	add	a,#0x15
	mov	r0,a
	mov	dpl,@r0
	inc	r0
	mov	dph,@r0
	inc	r0
	mov	b,@r0
	inc	r0
	mov	a,@r0
	lcall	___fsdiv
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	dpl,r2
	mov	dph,r3
	mov	b,r4
	mov	a,r5
	sjmp	00115$
00110$:
;	tancotf.c:82: else return (xnum/xden);
	mov	a,_bp
	add	a,#0x15
	mov	r0,a
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	inc	r0
	mov	a,@r0
	push	acc
	mov	a,_bp
	add	a,#0x11
	mov	r0,a
	mov	dpl,@r0
	inc	r0
	mov	dph,@r0
	inc	r0
	mov	b,@r0
	inc	r0
	mov	a,@r0
	lcall	___fsdiv
	mov	r2,dpl
	mov	r3,dph
	mov	r4,b
	mov	r5,a
	mov	a,sp
	add	a,#0xfc
	mov	sp,a
	mov	dpl,r2
	mov	dph,r3
	mov	b,r4
	mov	a,r5
00115$:
	mov	sp,_bp
	pop	_bp
	ret
	.area CSEG    (CODE)
	.area CONST   (CODE)
	.area XINIT   (CODE)
	.area CABS    (ABS,CODE)
