intfloat_readwrite.mid

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· MID 代码 · 共 735 行

	.file	1 "intfloat_readwrite.c"
	.section .mdebug.abi32
	.previous
	.globl	__eqsf2
	.globl	__extendsfdf2
	.globl	__truncdfsf2
	.globl	__ltsf2
	.globl	__subdf3
	.globl	__muldf3
	.globl	__fixdfdi
	.section	.rodata.cst8,"aM",@progbits,8
	.align	3
$LC0:
	.word	0
	.word	1071644672
	.align	3
$LC1:
	.word	0
	.word	1097859072
	.section	.text.av_flt2int,"ax",@progbits
	.align	2
	.align	5
	.globl	av_flt2int
	.ent	av_flt2int
	.type	av_flt2int, @function
av_flt2int:
	.frame	$sp,40,$31		# vars= 8, regs= 4/0, args= 16, gp= 0
	.mask	0x80070000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-40
	move	$5,$0
	sw	$18,32($sp)
	sw	$16,24($sp)
	sw	$31,36($sp)
	move	$16,$4
	jal	__eqsf2
	sw	$17,28($sp)

	li	$18,-2147483648			# 0xffffffff80000000
	move	$4,$16
	beq	$2,$0,$L5
	move	$5,$0

	jal	__extendsfdf2
	nop

	move	$4,$2
	addiu	$6,$sp,16
	jal	frexp
	move	$5,$3

	move	$5,$3
	jal	__truncdfsf2
	move	$4,$2

	move	$4,$2
	move	$5,$0
	jal	__ltsf2
	move	$17,$2

	slt	$2,$2,0
	move	$4,$17
	jal	__extendsfdf2
	movz	$18,$0,$2

	move	$4,$2
	jal	fabs
	move	$5,$3

	lui	$4,%hi($LC0)
	lw	$6,%lo($LC0)($4)
	lw	$7,%lo($LC0+4)($4)
	move	$5,$3
	jal	__subdf3
	move	$4,$2

	lui	$4,%hi($LC1)
	lw	$6,%lo($LC1)($4)
	lw	$7,%lo($LC1+4)($4)
	move	$5,$3
	move	$4,$2
	jal	__muldf3
	lw	$16,16($sp)

	move	$5,$3
	addiu	$16,$16,126
	jal	__fixdfdi
	move	$4,$2

	sll	$16,$16,23
	or	$16,$16,$2
	or	$5,$18,$16
$L5:
	lw	$31,36($sp)
	lw	$18,32($sp)
	lw	$17,28($sp)
	lw	$16,24($sp)
	move	$2,$5
	j	$31
	addiu	$sp,$sp,40

	.set	macro
	.set	reorder
	.end	av_flt2int
	.globl	__eqdf2
	.globl	__ltdf2
	.section	.rodata.cst8
	.align	3
$LC2:
	.word	0
	.word	1071644672
	.align	3
$LC3:
	.word	0
	.word	1128267776
	.section	.text.av_dbl2int,"ax",@progbits
	.align	2
	.align	5
	.globl	av_dbl2int
	.ent	av_dbl2int
	.type	av_dbl2int, @function
av_dbl2int:
	.frame	$sp,56,$31		# vars= 8, regs= 7/0, args= 16, gp= 0
	.mask	0x803f0000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-56
	move	$6,$0
	move	$7,$0
	sw	$17,28($sp)
	sw	$16,24($sp)
	move	$17,$5
	move	$16,$4
	sw	$31,48($sp)
	sw	$21,44($sp)
	sw	$20,40($sp)
	sw	$19,36($sp)
	jal	__eqdf2
	sw	$18,32($sp)

	move	$4,$16
	move	$5,$17
	addiu	$6,$sp,16
	move	$8,$0
	bne	$2,$0,$L22
	move	$9,$0

	lw	$31,48($sp)
	lw	$21,44($sp)
	lw	$20,40($sp)
	lw	$19,36($sp)
	lw	$18,32($sp)
	lw	$17,28($sp)
	lw	$16,24($sp)
	move	$2,$8
	move	$3,$9
	j	$31
	addiu	$sp,$sp,56

$L22:
	jal	frexp
	move	$20,$0

	move	$4,$2
	move	$5,$3
	move	$6,$0
	move	$7,$0
	move	$18,$2
	jal	__ltdf2
	move	$19,$3

	bltz	$2,$L20
	li	$21,-2147483648			# 0xffffffff80000000

	move	$20,$0
	move	$21,$0
$L20:
	lw	$4,16($sp)
	move	$5,$19
	addiu	$16,$4,1022
	jal	fabs
	move	$4,$18

	lui	$4,%hi($LC2)
	lw	$6,%lo($LC2)($4)
	lw	$7,%lo($LC2+4)($4)
	move	$5,$3
	jal	__subdf3
	move	$4,$2

	lui	$4,%hi($LC3)
	lw	$6,%lo($LC3)($4)
	lw	$7,%lo($LC3+4)($4)
	move	$5,$3
	jal	__muldf3
	move	$4,$2

	move	$4,$2
	jal	__fixdfdi
	move	$5,$3

	sll	$17,$16,20
	move	$16,$0
	or	$16,$16,$2
	or	$17,$17,$3
	or	$8,$20,$16
	or	$9,$21,$17
	lw	$31,48($sp)
	lw	$21,44($sp)
	lw	$20,40($sp)
	lw	$19,36($sp)
	lw	$18,32($sp)
	lw	$17,28($sp)
	lw	$16,24($sp)
	move	$2,$8
	move	$3,$9
	j	$31
	addiu	$sp,$sp,56

	.set	macro
	.set	reorder
	.end	av_dbl2int
	.globl	__gedf2
	.globl	__fixunsdfdi
	.globl	__nedf2
	.globl	__ledf2
	.section	.rodata.cst8
	.align	3
$LC4:
	.word	0
	.word	1071644672
	.align	3
$LC5:
	.word	0
	.word	1072693248
	.align	3
$LC6:
	.word	-1
	.word	2146435071
	.section	.text.av_dbl2ext,"ax",@progbits
	.align	2
	.align	5
	.globl	av_dbl2ext
	.ent	av_dbl2ext
	.type	av_dbl2ext, @function
av_dbl2ext:
	.frame	$sp,64,$31		# vars= 8, regs= 9/0, args= 16, gp= 0
	.mask	0x80ff0000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-64
	sw	$22,48($sp)
	move	$22,$6
	sw	$31,56($sp)
	sw	$23,52($sp)
	sw	$19,36($sp)
	sw	$17,28($sp)
	sw	$16,24($sp)
	sw	$21,44($sp)
	sw	$20,40($sp)
	sw	$18,32($sp)
	move	$5,$7
	addiu	$6,$sp,16
	sb	$0,0($4)
	sb	$0,1($4)
	sb	$0,2($4)
	sb	$0,3($4)
	sb	$0,4($4)
	sb	$0,5($4)
	sb	$0,6($4)
	sb	$0,7($4)
	sb	$0,8($4)
	sb	$0,9($4)
	move	$19,$4
	move	$4,$22
	jal	frexp
	move	$23,$7

	move	$4,$2
	jal	fabs
	move	$5,$3

	move	$16,$2
	lui	$2,%hi($LC4)
	lw	$6,%lo($LC4)($2)
	lw	$7,%lo($LC4+4)($2)
	move	$4,$16
	move	$5,$3
	jal	__ltdf2
	move	$17,$3

	bltz	$2,$L39
	move	$4,$16

	lui	$2,%hi($LC5)
	lw	$6,%lo($LC5)($2)
	lw	$7,%lo($LC5+4)($2)
	jal	__gedf2
	move	$5,$17

	bltz	$2,$L37
	move	$4,$16

$L39:
	move	$5,$17
	move	$6,$0
	jal	__nedf2
	move	$7,$0

	beq	$2,$0,$L38
	move	$21,$0

	lui	$2,%hi($LC6)
	lw	$6,%lo($LC6)($2)
	lw	$7,%lo($LC6+4)($2)
	move	$4,$16
	jal	__ledf2
	move	$5,$17

	bgtz	$2,$L36
	li	$2,-1

	sb	$2,2($19)
$L36:
	li	$21,255			# 0xff
	j	$L27
	li	$20,127			# 0x7f

$L38:
	move	$20,$0
$L27:
	move	$4,$22
	move	$5,$23
	move	$6,$0
	jal	__ltdf2
	move	$7,$0

	slt	$2,$2,0
	ori	$3,$20,0x80
	movn	$20,$3,$2
	sb	$21,1($19)
	sb	$20,0($19)
	move	$2,$19
	lw	$31,56($sp)
	lw	$23,52($sp)
	lw	$22,48($sp)
	lw	$21,44($sp)
	lw	$20,40($sp)
	lw	$19,36($sp)
	lw	$18,32($sp)
	lw	$17,28($sp)
	lw	$16,24($sp)
	j	$31
	addiu	$sp,$sp,64

$L37:
	lw	$18,16($sp)
	addiu	$18,$18,16382
	li	$6,64			# 0x40
	move	$5,$17
	jal	ldexp
	sw	$18,16($sp)

	move	$4,$2
	jal	__fixunsdfdi
	move	$5,$3

	sra	$4,$18,8
	andi	$20,$4,0x00ff
	srl	$8,$2,24
	sll	$4,$3,8
	or	$8,$4,$8
	andi	$21,$18,0x00ff
	sll	$5,$3,16
	srl	$6,$2,16
	sll	$18,$3,24
	srl	$4,$2,8
	srl	$16,$3,24
	srl	$14,$3,16
	srl	$12,$3,8
	or	$6,$5,$6
	or	$4,$18,$4
	sb	$16,2($19)
	sb	$14,3($19)
	sb	$12,4($19)
	sb	$3,5($19)
	sb	$8,6($19)
	sb	$6,7($19)
	sb	$4,8($19)
	j	$L27
	sb	$2,9($19)

	.set	macro
	.set	reorder
	.end	av_dbl2ext
	.globl	__cmpdi2
	.globl	__floatdidf
	.globl	__adddf3
	.section	.rodata.cst8
	.align	3
$LC7:
	.word	-1
	.word	2146959359
	.section	.text.av_ext2dbl,"ax",@progbits
	.align	2
	.align	5
	.globl	av_ext2dbl
	.ent	av_ext2dbl
	.type	av_ext2dbl, @function
av_ext2dbl:
	.frame	$sp,32,$31		# vars= 0, regs= 4/0, args= 16, gp= 0
	.mask	0x80070000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-32
	sw	$4,32($sp)
	lbu	$2,34($sp)
	lbu	$10,35($sp)
	srl	$4,$2,24
	sll	$2,$2,8
	addu	$8,$2,$10
	move	$3,$0
	sw	$5,36($sp)
	or	$3,$4,$3
	sltu	$4,$8,$2
	addu	$9,$4,$3
	lbu	$4,36($sp)
	srl	$2,$8,24
	sll	$9,$9,8
	sll	$8,$8,8
	or	$9,$2,$9
	addu	$2,$8,$4
	sltu	$7,$2,$8
	addu	$3,$7,$9
	lbu	$8,37($sp)
	srl	$4,$2,24
	sll	$3,$3,8
	sll	$2,$2,8
	or	$3,$4,$3
	addu	$4,$2,$8
	sltu	$7,$4,$2
	addu	$5,$7,$3
	lbu	$8,38($sp)
	srl	$2,$4,24
	sll	$5,$5,8
	sll	$4,$4,8
	or	$5,$2,$5
	addu	$2,$4,$8
	sltu	$7,$2,$4
	addu	$3,$7,$5
	lbu	$8,39($sp)
	srl	$4,$2,24
	sll	$3,$3,8
	sll	$2,$2,8
	or	$3,$4,$3
	addu	$4,$2,$8
	sltu	$7,$4,$2
	sw	$6,40($sp)
	addu	$5,$7,$3
	lbu	$6,40($sp)
	srl	$2,$4,24
	sll	$5,$5,8
	sll	$4,$4,8
	or	$5,$2,$5
	addu	$2,$4,$6
	sltu	$8,$2,$4
	addu	$3,$8,$5
	lbu	$6,41($sp)
	lbu	$9,32($sp)
	srl	$4,$2,24
	sll	$3,$3,8
	sll	$2,$2,8
	or	$3,$4,$3
	andi	$8,$9,0x7f
	addu	$4,$2,$6
	lbu	$7,33($sp)
	sltu	$6,$4,$2
	sll	$8,$8,8
	sw	$18,24($sp)
	addu	$5,$6,$3
	or	$18,$8,$7
	li	$2,32767			# 0x7fff
	sw	$17,20($sp)
	sw	$16,16($sp)
	sw	$31,28($sp)
	move	$16,$4
	beq	$18,$2,$L51
	move	$17,$5

	sll	$2,$9,24
$L55:
	sra	$2,$2,24
	bltz	$2,$L52
	move	$4,$16

	move	$5,$17
	move	$6,$0
	jal	__cmpdi2
	move	$7,$0

	blez	$2,$L54
	sll	$6,$17,31

	move	$4,$16
$L56:
	jal	__floatdidf
	move	$5,$17

	move	$4,$2
	addiu	$6,$18,-16446
	lw	$31,28($sp)
	lw	$18,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	move	$5,$3
	j	ldexp
	addiu	$sp,$sp,32

$L51:
	or	$2,$4,$5
	beq	$2,$0,$L55
	sll	$2,$9,24

	lui	$4,%hi($LC7)
	lw	$2,%lo($LC7)($4)
	lw	$3,%lo($LC7+4)($4)
	lw	$31,28($sp)
	lw	$18,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	j	$31
	addiu	$sp,$sp,32

$L52:
	subu	$2,$0,$16
	sltu	$4,$0,$2
	subu	$3,$0,$17
	subu	$3,$3,$4
	move	$16,$2
	move	$17,$3
	move	$4,$16
	move	$5,$17
	move	$6,$0
	jal	__cmpdi2
	move	$7,$0

	bgtz	$2,$L56
	move	$4,$16

	sll	$6,$17,31
$L54:
	srl	$2,$16,1
	or	$2,$6,$2
	srl	$3,$17,1
	andi	$4,$16,0x1
	move	$5,$0
	or	$4,$4,$2
	jal	__floatdidf
	or	$5,$5,$3

	move	$4,$2
	move	$5,$3
	move	$6,$2
	jal	__adddf3
	move	$7,$3

	move	$4,$2
	addiu	$6,$18,-16446
	lw	$31,28($sp)
	lw	$18,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	move	$5,$3
	j	ldexp
	addiu	$sp,$sp,32

	.set	macro
	.set	reorder
	.end	av_ext2dbl
	.globl	__floatsidf
	.section	.rodata.cst4,"aM",@progbits,4
	.align	2
$LC8:
	.word	2143289343
	.section	.text.av_int2flt,"ax",@progbits
	.align	2
	.align	5
	.globl	av_int2flt
	.ent	av_int2flt
	.type	av_int2flt, @function
av_int2flt:
	.frame	$sp,24,$31		# vars= 0, regs= 2/0, args= 16, gp= 0
	.mask	0x80010000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-24
	sw	$16,16($sp)
	move	$16,$4
	li	$4,8323072			# 0x7f0000
	ori	$4,$4,0xffff
	li	$3,8388608			# 0x800000
	and	$4,$16,$4
	sra	$2,$16,31
	addu	$4,$4,$3
	ori	$2,$2,0x1
	mul	$4,$4,$2
	li	$2,-16777216			# 0xffffffffff000000
	sll	$3,$16,1
	ori	$2,$2,0x1
	sltu	$3,$3,$2
	bne	$3,$0,$L58
	sw	$31,20($sp)

	lui	$2,%hi($LC8)
	lw	$2,%lo($LC8)($2)
	lw	$31,20($sp)
	lw	$16,16($sp)
	j	$31
	addiu	$sp,$sp,24

$L58:
	jal	__floatsidf
	nop

	sra	$6,$16,23
	andi	$6,$6,0xff
	addiu	$6,$6,-150
	move	$4,$2
	jal	ldexp
	move	$5,$3

	move	$4,$2
	jal	__truncdfsf2
	move	$5,$3

	lw	$31,20($sp)
	lw	$16,16($sp)
	j	$31
	addiu	$sp,$sp,24

	.set	macro
	.set	reorder
	.end	av_int2flt
	.section	.rodata.cst8
	.align	3
$LC9:
	.word	-1
	.word	2146959359
	.section	.text.av_int2dbl,"ax",@progbits
	.align	2
	.align	5
	.globl	av_int2dbl
	.ent	av_int2dbl
	.type	av_int2dbl, @function
av_int2dbl:
	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
	.mask	0x80030000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-32
	sw	$16,16($sp)
	move	$16,$4
	sll	$4,$4,1
	sltu	$2,$4,$16
	sw	$17,20($sp)
	move	$17,$5
	sll	$5,$5,1
	addu	$5,$2,$5
	li	$3,-2097152			# 0xffffffffffe00000
	sltu	$2,$3,$5
	bne	$2,$0,$L65
	sw	$31,24($sp)

	beq	$5,$3,$L68
	li	$2,983040			# 0xf0000

$L69:
	sra	$8,$17,31
	ori	$2,$2,0xffff
	and	$7,$17,$2
	li	$5,1048576			# 0x100000
	ori	$2,$8,0x1
	addu	$11,$7,$5
	mul	$7,$8,$16
	multu	$16,$2
	mflo	$4
	mfhi	$5
	mul	$6,$11,$2
	addu	$2,$6,$7
	jal	__floatdidf
	addu	$5,$2,$5

	sra	$6,$17,20
	andi	$6,$6,0x7ff
	lw	$31,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	move	$4,$2
	move	$5,$3
	addiu	$6,$6,-1075
	j	ldexp
	addiu	$sp,$sp,32

$L68:
	bleu	$4,$0,$L69
	nop

$L65:
	lui	$4,%hi($LC9)
	lw	$2,%lo($LC9)($4)
	lw	$3,%lo($LC9+4)($4)
	lw	$31,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	j	$31
	addiu	$sp,$sp,32

	.set	macro
	.set	reorder
	.end	av_int2dbl
	.ident	"GCC: (GNU) 4.1.2"