;--------------------------------------------------------
; File Created by SDCC : free open source ANSI-C Compiler
; Version 2.8.0 #5117 (Apr  6 2017) (UNIX)
; This file was generated Thu Apr  6 21:17:07 2017
;--------------------------------------------------------
	.module sqrtf
	.optsdcc -mz80
	
;--------------------------------------------------------
; Public variables in this module
;--------------------------------------------------------
	.globl _sqrtf
;--------------------------------------------------------
; special function registers
;--------------------------------------------------------
;--------------------------------------------------------
;  ram data
;--------------------------------------------------------
	.area _DATA
;--------------------------------------------------------
; overlayable items in  ram 
;--------------------------------------------------------
	.area _OVERLAY
;--------------------------------------------------------
; external initialized ram data
;--------------------------------------------------------
;--------------------------------------------------------
; global & static initialisations
;--------------------------------------------------------
	.area _HOME
	.area _GSINIT
	.area _GSFINAL
	.area _GSINIT
;--------------------------------------------------------
; Home
;--------------------------------------------------------
	.area _HOME
	.area _HOME
;--------------------------------------------------------
; code
;--------------------------------------------------------
	.area _CODE
;sqrtf.c:27: float sqrtf(const float x) _FLOAT_FUNC_REENTRANT
;	genLabel
;	genFunction
;	---------------------------------
; Function sqrtf
; ---------------------------------
_sqrtf_start::
_sqrtf:
	push	ix
	ld	ix,#0
	add	ix,sp
	ld	hl,#-14
	add	hl,sp
	ld	sp,hl
;sqrtf.c:32: if (x==0.0) return x;
;	genIfx
;	AOP_STK for 
	ld	a,4(ix)
	or	a,5(ix)
	or	a,6(ix)
	or	a,7(ix)
	jr	NZ,00107$
;	genRet
;	AOP_STK for 
; Dump of IC_LEFT: type AOP_STK size 4
;	 aop_stk 4
	ld	l,4(ix)
	ld	h,5(ix)
	ld	e,6(ix)
	ld	d,7(ix)
	jp	00111$
;	genLabel
00107$:
;sqrtf.c:33: else if (x==1.0) return 1.0;
;	genIpush
; _saveRegsForCall: sendSetSize: 0 deInUse: 0 bcInUse: 0 deSending: 0
	ld	hl,#0x0000
	push	hl
	ld	hl,#0x803F
	push	hl
;	genIpush
;	AOP_STK for 
	ld	l,6(ix)
	ld	h,7(ix)
	push	hl
	ld	l,4(ix)
	ld	h,5(ix)
	push	hl
;	genCall
	call	___fseq
	ld	c,l
	pop	af
	pop	af
	pop	af
	pop	af
;	genIfx
	xor	a,a
	or	a,c
	jr	Z,00104$
;	genRet
; Dump of IC_LEFT: type AOP_LIT size 4
	ld	hl,#0x803F
	ld	de,#0x0000
	jp	00111$
;	genLabel
00104$:
;sqrtf.c:34: else if (x<0.0)
;	genIpush
; _saveRegsForCall: sendSetSize: 0 deInUse: 0 bcInUse: 0 deSending: 0
	ld	hl,#0x0000
	push	hl
	ld	hl,#0x0000
	push	hl
;	genIpush
;	AOP_STK for 
	ld	l,6(ix)
	ld	h,7(ix)
	push	hl
	ld	l,4(ix)
	ld	h,5(ix)
	push	hl
;	genCall
	call	___fslt
	ld	c,l
	pop	af
	pop	af
	pop	af
	pop	af
;	genIfx
	xor	a,a
	or	a,c
	jr	Z,00108$
;sqrtf.c:36: errno=EDOM;
;	genAssign
	ld	iy,#_errno
	ld	0(iy),#0x21
	ld	1(iy),#0x00
;sqrtf.c:37: return 0.0;
;	genRet
; Dump of IC_LEFT: type AOP_LIT size 4
	ld	hl,#0x0000
	ld	de,#0x0000
	jp	00111$
;	genLabel
00108$:
;sqrtf.c:39: f=frexpf(x, &n);
;	genAddrOf
	ld	hl,#0x0004
	add	hl,sp
	ld	c,l
	ld	b,h
;	genIpush
; _saveRegsForCall: sendSetSize: 0 deInUse: 0 bcInUse: 0 deSending: 0
	push	bc
;	genIpush
;	AOP_STK for 
	ld	l,6(ix)
	ld	h,7(ix)
	push	hl
	ld	l,4(ix)
	ld	h,5(ix)
	push	hl
;	genCall
	call	_frexpf
	ld	b,h
	ld	c,l
	pop	af
	pop	af
	pop	af
;	genAssign
;	AOP_STK for _sqrtf_f_1_1
	ld	-4(ix),c
	ld	-3(ix),b
	ld	-2(ix),e
	ld	-1(ix),d
;sqrtf.c:40: y=0.41731+0.59016*f; /*Educated guess*/
;	genIpush
; _saveRegsForCall: sendSetSize: 0 deInUse: 0 bcInUse: 0 deSending: 0
;	AOP_STK for _sqrtf_f_1_1
	ld	l,-2(ix)
	ld	h,-1(ix)
	push	hl
	ld	l,-4(ix)
	ld	h,-3(ix)
	push	hl
;	genIpush
	ld	hl,#0xBA14
	push	hl
	ld	hl,#0x173F
	push	hl
;	genCall
	call	___fsmul
	ld	b,h
	ld	c,l
	pop	af
	pop	af
	pop	af
	pop	af
;	genIpush
; _saveRegsForCall: sendSetSize: 0 deInUse: 0 bcInUse: 0 deSending: 0
	ld	hl,#0xA8A9
	push	hl
	ld	hl,#0xD53E
	push	hl
;	genIpush
	ld	l,e
	ld	h,d
	push	hl
	ld	l,c
	ld	h,b
	push	hl
;	genCall
	call	___fsadd
	ld	b,h
	ld	c,l
	pop	af
	pop	af
	pop	af
	pop	af
;	genAssign
;	AOP_STK for _sqrtf_y_1_1
	ld	-8(ix),c
	ld	-7(ix),b
	ld	-6(ix),e
	ld	-5(ix),d
;sqrtf.c:42: y+=f/y;
;	genIpush
; _saveRegsForCall: sendSetSize: 0 deInUse: 0 bcInUse: 0 deSending: 0
;	AOP_STK for _sqrtf_y_1_1
	ld	l,-6(ix)
	ld	h,-5(ix)
	push	hl
	ld	l,-8(ix)
	ld	h,-7(ix)
	push	hl
;	genIpush
;	AOP_STK for _sqrtf_f_1_1
	ld	l,-2(ix)
	ld	h,-1(ix)
	push	hl
	ld	l,-4(ix)
	ld	h,-3(ix)
	push	hl
;	genCall
	call	___fsdiv
	ld	b,h
	ld	c,l
	pop	af
	pop	af
	pop	af
	pop	af
;	genIpush
; _saveRegsForCall: sendSetSize: 0 deInUse: 0 bcInUse: 0 deSending: 0
	ld	l,e
	ld	h,d
	push	hl
	ld	l,c
	ld	h,b
	push	hl
;	genIpush
;	AOP_STK for _sqrtf_y_1_1
	ld	l,-6(ix)
	ld	h,-5(ix)
	push	hl
	ld	l,-8(ix)
	ld	h,-7(ix)
	push	hl
;	genCall
	call	___fsadd
	ld	b,h
	ld	c,l
	pop	af
	pop	af
	pop	af
	pop	af
;	genAssign
;	AOP_STK for _sqrtf_y_1_1
	ld	-8(ix),c
	ld	-7(ix),b
	ld	-6(ix),e
	ld	-5(ix),d
;sqrtf.c:43: y=ldexpf(y, -2) + f/y; /*Faster version of 0.25 * y + f/y*/
;	genIpush
; _saveRegsForCall: sendSetSize: 0 deInUse: 0 bcInUse: 0 deSending: 0
	ld	hl,#0xFFFFFFFE
	push	hl
;	genIpush
;	AOP_STK for _sqrtf_y_1_1
	ld	l,-6(ix)
	ld	h,-5(ix)
	push	hl
	ld	l,-8(ix)
	ld	h,-7(ix)
	push	hl
;	genCall
	call	_ldexpf
;	AOP_STK for _sqrtf_sloc0_1_0
	ld	-11(ix),d
	ld	-12(ix),e
	ld	-13(ix),h
	ld	-14(ix),l
	pop	af
	pop	af
	pop	af
;	genIpush
; _saveRegsForCall: sendSetSize: 0 deInUse: 0 bcInUse: 0 deSending: 0
;	AOP_STK for _sqrtf_y_1_1
	ld	l,-6(ix)
	ld	h,-5(ix)
	push	hl
	ld	l,-8(ix)
	ld	h,-7(ix)
	push	hl
;	genIpush
;	AOP_STK for _sqrtf_f_1_1
	ld	l,-2(ix)
	ld	h,-1(ix)
	push	hl
	ld	l,-4(ix)
	ld	h,-3(ix)
	push	hl
;	genCall
	call	___fsdiv
	ld	b,h
	ld	c,l
	pop	af
	pop	af
	pop	af
	pop	af
;	genIpush
; _saveRegsForCall: sendSetSize: 0 deInUse: 0 bcInUse: 0 deSending: 0
	ld	l,e
	ld	h,d
	push	hl
	ld	l,c
	ld	h,b
	push	hl
;	genIpush
;	AOP_STK for _sqrtf_sloc0_1_0
	ld	l,-12(ix)
	ld	h,-11(ix)
	push	hl
	ld	l,-14(ix)
	ld	h,-13(ix)
	push	hl
;	genCall
	call	___fsadd
	ld	b,h
	ld	c,l
	pop	af
	pop	af
	pop	af
	pop	af
;	genAssign
;	AOP_STK for _sqrtf_y_1_1
	ld	-8(ix),c
	ld	-7(ix),b
	ld	-6(ix),e
	ld	-5(ix),d
;sqrtf.c:45: if (n&1)
;	genAnd
;	AOP_STK for _sqrtf_n_1_1
	ld	a,-10(ix)
	and	a,#0x01
	jr	Z,00110$
;sqrtf.c:47: y*=0.7071067812;
;	genIpush
; _saveRegsForCall: sendSetSize: 0 deInUse: 0 bcInUse: 0 deSending: 0
;	AOP_STK for _sqrtf_y_1_1
	ld	l,-6(ix)
	ld	h,-5(ix)
	push	hl
	ld	l,-8(ix)
	ld	h,-7(ix)
	push	hl
;	genIpush
	ld	hl,#0xF304
	push	hl
	ld	hl,#0x353F
	push	hl
;	genCall
	call	___fsmul
	ld	b,h
	ld	c,l
	pop	af
	pop	af
	pop	af
	pop	af
;	genAssign
;	AOP_STK for _sqrtf_y_1_1
	ld	-8(ix),c
	ld	-7(ix),b
	ld	-6(ix),e
	ld	-5(ix),d
;sqrtf.c:48: ++n;
;	genPlus
;	AOP_STK for _sqrtf_n_1_1
;	genPlusIncr
	inc	-10(ix)
	jr	NZ,00118$
	inc	-9(ix)
00118$:
;	genLabel
00110$:
;sqrtf.c:50: return ldexpf(y, n/2);
;	genIpush
; _saveRegsForCall: sendSetSize: 0 deInUse: 0 bcInUse: 0 deSending: 0
	ld	hl,#0x0002
	push	hl
;	genIpush
;	AOP_STK for _sqrtf_n_1_1
	ld	l,-10(ix)
	ld	h,-9(ix)
	push	hl
;	genCall
	call	__divsint_rrx_s
	ld	b,h
	ld	c,l
	pop	af
	pop	af
;	genIpush
; _saveRegsForCall: sendSetSize: 0 deInUse: 0 bcInUse: 0 deSending: 0
	push	bc
;	genIpush
;	AOP_STK for _sqrtf_y_1_1
	ld	l,-6(ix)
	ld	h,-5(ix)
	push	hl
	ld	l,-8(ix)
	ld	h,-7(ix)
	push	hl
;	genCall
	call	_ldexpf
	ld	b,h
	ld	c,l
	pop	af
	pop	af
	pop	af
;	genRet
; Dump of IC_LEFT: type AOP_REG size 4
;	 reg = debc
	ld	l,c
	ld	h,b
;	genLabel
00111$:
;	genEndFunction
	ld	sp,ix
	pop	ix
	ret
_sqrtf_end::
	.area _CODE
	.area _CABS
