is.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 335 行

	.file	1 "is.c"
	.section .mdebug.abi32
	.previous
	.section	.text.is_decode,"ax",@progbits
	.align	2
	.align	5
	.globl	is_decode
	.ent	is_decode
	.type	is_decode, @function
is_decode:
	.frame	$sp,72,$31		# vars= 32, regs= 9/0, args= 0, gp= 0
	.mask	0x40ff0000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-72
	sw	$20,48($sp)
	sw	$fp,64($sp)
	sw	$23,60($sp)
	sw	$22,56($sp)
	sw	$21,52($sp)
	sw	$19,44($sp)
	sw	$18,40($sp)
	sw	$17,36($sp)
	sw	$16,32($sp)
	lhu	$2,88($sp)
	move	$25,$5
	lbu	$5,2($5)
	srl	$2,$2,3
	move	$20,$4
	sw	$6,80($sp)
	sw	$7,84($sp)
	beq	$5,$0,$L34
	sw	$2,8($sp)

	sw	$0,16($sp)
	lw	$2,16($sp)
	sw	$0,4($sp)
	sw	$0,0($sp)
$L4:
	addu	$2,$25,$2
	sw	$2,20($sp)
	lbu	$2,5($2)
	beq	$2,$0,$L52
	lw	$13,16($sp)

	lbu	$8,0($25)
	sw	$0,12($sp)
$L20:
	beq	$8,$0,$L18
	lw	$2,4($sp)

	lw	$3,8($sp)
	lw	$4,0($sp)
	mul	$21,$2,$3
	andi	$4,$4,0x00ff
	move	$6,$0
	move	$17,$0
	sll	$22,$4,3
	sll	$23,$4,7
	j	$L5
	sw	$4,24($sp)

$L35:
$L6:
	andi	$6,$19,0x00ff
	sltu	$2,$6,$8
	beq	$2,$0,$L18
	addiu	$17,$17,1

$L5:
	subu	$2,$23,$22
	addu	$2,$2,$25
	andi	$7,$17,0x00ff
	addu	$2,$2,$7
	lbu	$3,6840($2)
	li	$2,1			# 0x1
	addiu	$3,$3,-14
	sltu	$3,$2,$3
	bne	$3,$0,$L35
	addiu	$19,$6,1

	lw	$3,16($sp)
	sll	$2,$3,1
	addu	$2,$2,$3
	sll	$3,$2,4
	addu	$2,$2,$3
	addu	$2,$2,$6
	sll	$3,$6,1
	sll	$16,$19,1
	addu	$3,$3,$25
	addu	$5,$16,$25
	sll	$2,$2,1
	addu	$2,$2,$25
	lhu	$9,1936($3)
	lhu	$4,1936($5)
	lh	$5,7810($2)
	addu	$3,$6,$25
	addu	$2,$6,$20
	sltu	$4,$9,$4
	sb	$0,10221($2)
	sra	$13,$5,2
	beq	$4,$0,$L6
	sb	$0,10221($3)

	andi	$2,$5,0x3
	lui	$3,%hi(pow05_table)
	sll	$2,$2,2
	addiu	$3,$3,%lo(pow05_table)
	addu	$2,$2,$3
	lw	$4,12($2)
	move	$10,$4
	bltz	$13,$L37
	sra	$11,$4,31

	lw	$4,24($sp)
	li	$14,134217728			# 0x8000000
	sll	$2,$4,1
	addu	$2,$2,$4
	sll	$3,$2,4
	addu	$2,$2,$3
	subu	$4,$23,$22
	addu	$4,$4,$25
	addu	$2,$2,$20
	addu	$18,$2,$7
	addu	$24,$4,$7
	lw	$fp,80($sp)
$L53:
	addu	$6,$21,$9
	sll	$6,$6,2
	addu	$7,$6,$fp
	lw	$2,0($7)
	lw	$3,84($sp)
	sra	$2,$2,$13
	mul	$8,$11,$2
	multu	$2,$10
	addu	$12,$3,$6
	sra	$3,$2,31
	mflo	$6
	mfhi	$7
	mul	$fp,$3,$10
	addu	$4,$6,$14
	addu	$8,$fp,$8
	sltu	$6,$4,$6
	addu	$8,$8,$7
	addu	$5,$6,$8
	sll	$2,$5,4
	srl	$4,$4,28
	or	$4,$2,$4
	sw	$4,0($12)
	lbu	$3,6840($24)
	li	$2,14			# 0xe
	beq	$3,$2,$L26
	li	$2,15			# 0xf

	beq	$3,$2,$L28
	li	$6,1			# 0x1

	move	$6,$0
$L28:
	lbu	$3,8626($20)
	li	$2,1			# 0x1
	beq	$3,$2,$L49
	nop

$L31:
	beq	$2,$6,$L32
	subu	$2,$0,$4

	sw	$2,0($12)
$L32:
	addu	$2,$16,$25
	addiu	$4,$9,1
	lhu	$3,1936($2)
	andi	$9,$4,0xffff
	sltu	$3,$9,$3
	bne	$3,$0,$L53
	lw	$fp,80($sp)

	lbu	$8,0($25)
$L51:
	andi	$6,$19,0x00ff
	sltu	$2,$6,$8
	bne	$2,$0,$L5
	addiu	$17,$17,1

$L18:
	lw	$3,12($sp)
	lw	$4,20($sp)
	lw	$13,4($sp)
	addiu	$2,$3,1
	lbu	$3,5($4)
	andi	$2,$2,0x00ff
	addiu	$4,$13,1
	andi	$4,$4,0x00ff
	sltu	$3,$2,$3
	sw	$2,12($sp)
	bne	$3,$0,$L20
	sw	$4,4($sp)

	lbu	$5,2($25)
	lw	$13,16($sp)
$L52:
	lw	$fp,0($sp)
	addiu	$2,$13,1
	andi	$2,$2,0x00ff
	addiu	$fp,$fp,1
	sltu	$3,$2,$5
	sw	$2,16($sp)
	bne	$3,$0,$L4
	sw	$fp,0($sp)

$L34:
	lw	$fp,64($sp)
	lw	$23,60($sp)
	lw	$22,56($sp)
	lw	$21,52($sp)
	lw	$20,48($sp)
	lw	$19,44($sp)
	lw	$18,40($sp)
	lw	$17,36($sp)
	lw	$16,32($sp)
	j	$31
	addiu	$sp,$sp,72

$L49:
	lbu	$2,8627($18)
	sll	$2,$2,1
	subu	$2,$3,$2
	sll	$2,$2,24
	j	$L31
	sra	$2,$2,24

$L26:
	j	$L28
	li	$6,-1			# 0xffffffffffffffff

$L37:
	lw	$3,24($sp)
	subu	$4,$23,$22
	sll	$2,$3,1
	addu	$2,$2,$3
	sll	$3,$2,4
	addu	$2,$2,$3
	addu	$4,$4,$25
	addu	$2,$2,$20
	addu	$4,$4,$7
	addu	$18,$2,$7
	subu	$24,$0,$13
	sw	$4,28($sp)
	li	$14,134217728			# 0x8000000
	lw	$4,80($sp)
$L54:
	addu	$6,$21,$9
	sll	$6,$6,2
	addu	$7,$4,$6
	lw	$2,0($7)
	lw	$13,84($sp)
	sll	$2,$2,$24
	mul	$8,$11,$2
	multu	$2,$10
	sra	$3,$2,31
	addu	$12,$13,$6
	mfhi	$7
	mflo	$6
	mul	$13,$3,$10
	addu	$4,$6,$14
	addu	$8,$13,$8
	sltu	$6,$4,$6
	addu	$8,$8,$7
	addu	$5,$6,$8
	sll	$2,$5,4
	srl	$4,$4,28
	or	$4,$2,$4
	lw	$fp,28($sp)
	sw	$4,0($12)
	lbu	$3,6840($fp)
	li	$2,14			# 0xe
	beq	$3,$2,$L10
	li	$2,15			# 0xf

	beq	$3,$2,$L12
	li	$6,1			# 0x1

	move	$6,$0
$L12:
	lbu	$3,8626($20)
	li	$2,1			# 0x1
	bne	$3,$2,$L15
	nop

	lbu	$2,8627($18)
	sll	$2,$2,1
	subu	$2,$3,$2
	sll	$2,$2,24
	sra	$2,$2,24
$L15:
	beq	$2,$6,$L16
	subu	$2,$0,$4

	sw	$2,0($12)
$L16:
	addu	$2,$16,$25
	addiu	$4,$9,1
	lhu	$3,1936($2)
	andi	$9,$4,0xffff
	sltu	$3,$9,$3
	bne	$3,$0,$L54
	lw	$4,80($sp)

	j	$L51
	lbu	$8,0($25)

$L10:
	j	$L12
	li	$6,-1			# 0xffffffffffffffff

	.set	macro
	.set	reorder
	.end	is_decode
	.rdata
	.align	2
	.type	pow05_table, @object
	.size	pow05_table, 28
pow05_table:
	.word	451452825
	.word	379625062
	.word	319225354
	.word	268435456
	.word	225726413
	.word	189812531
	.word	159612677
	.ident	"GCC: (GNU) 4.1.2"