frame.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 1,152 行 · 第 1/2 页

	.file	1 "frame.c"
	.section .mdebug.abi32
	.previous
	.section	.text.mad_header_init,"ax",@progbits
	.align	2
	.align	5
	.globl	mad_header_init
	.ent	mad_header_init
	.type	mad_header_init, @function
mad_header_init:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	lui	$3,%hi(mad_timer_zero)
	addiu	$2,$3,%lo(mad_timer_zero)
	lw	$5,4($2)
	lw	$6,%lo(mad_timer_zero)($3)
	sw	$5,40($4)
	sw	$6,36($4)
	sw	$0,0($4)
	sw	$0,4($4)
	sw	$0,8($4)
	sw	$0,12($4)
	sw	$0,16($4)
	sw	$0,20($4)
	sh	$0,24($4)
	sh	$0,26($4)
	sw	$0,28($4)
	j	$31
	sw	$0,32($4)

	.set	macro
	.set	reorder
	.end	mad_header_init
	.section	.text.mad_frame_mute,"ax",@progbits
	.align	2
	.align	5
	.globl	mad_frame_mute
	.ent	mad_frame_mute
	.type	mad_frame_mute, @function
mad_frame_mute:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	move	$6,$0
	sll	$2,$6,7
$L23:
	addiu	$2,$2,4656
	addu	$3,$4,$2
	move	$5,$0
$L5:
	addiu	$5,$5,1
	li	$2,32			# 0x20
	sw	$0,0($3)
	sw	$0,-4608($3)
	bne	$5,$2,$L5
	addiu	$3,$3,4

	addiu	$6,$6,1
	li	$2,36			# 0x24
	bne	$6,$2,$L23
	sll	$2,$6,7

	lw	$4,9264($4)
	beq	$4,$0,$L26
	move	$6,$0

	sll	$2,$6,2
$L24:
	addiu	$2,$2,2304
	addu	$3,$4,$2
	move	$5,$0
$L10:
	addiu	$5,$5,1
	li	$2,32			# 0x20
	sw	$0,0($3)
	sw	$0,-2304($3)
	bne	$5,$2,$L10
	addiu	$3,$3,72

	addiu	$6,$6,1
	li	$2,18			# 0x12
	bne	$6,$2,$L24
	sll	$2,$6,2

$L26:
	j	$31
	nop

	.set	macro
	.set	reorder
	.end	mad_frame_mute
	.section	.text.decode_header,"ax",@progbits
	.align	2
	.align	5
	.ent	decode_header
	.type	decode_header, @function
decode_header:
	.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	$16,16($sp)
	addiu	$16,$5,28
	sw	$18,24($sp)
	sw	$17,20($sp)
	sw	$31,28($sp)
	move	$18,$5
	sw	$0,28($4)
	sw	$0,32($4)
	li	$5,11			# 0xb
	move	$17,$4
	jal	mad_bit_skip
	move	$4,$16

	move	$4,$16
	jal	mad_bit_read
	li	$5,1			# 0x1

	bne	$2,$0,$L64
	move	$4,$16

	lw	$2,28($17)
	ori	$2,$2,0x4000
	sw	$2,28($17)
$L64:
	jal	mad_bit_read
	li	$5,1			# 0x1

	bne	$2,$0,$L30
	move	$4,$16

	lw	$2,28($17)
	ori	$2,$2,0x1000
	sw	$2,28($17)
$L69:
	jal	mad_bit_read
	li	$5,2			# 0x2

	li	$3,4			# 0x4
	subu	$2,$3,$2
	beq	$2,$3,$L60
	sw	$2,0($17)

	move	$4,$16
	jal	mad_bit_read
	li	$5,1			# 0x1

	beq	$2,$0,$L61
	li	$6,16			# 0x10

$L37:
	move	$4,$16
	jal	mad_bit_read
	li	$5,4			# 0x4

	move	$4,$2
	li	$2,15			# 0xf
	beq	$4,$2,$L62
	li	$2,259			# 0x103

	lw	$2,28($17)
	andi	$2,$2,0x1000
	beq	$2,$0,$L41
	nop

	lw	$3,0($17)
	srl	$3,$3,1
	sll	$2,$3,4
	subu	$2,$2,$3
	addu	$2,$2,$4
	lui	$3,%hi(bitrate_table)
	sll	$2,$2,2
	addiu	$3,$3,%lo(bitrate_table)
	addu	$2,$2,$3
	lw	$4,180($2)
	sw	$4,16($17)
$L43:
	move	$4,$16
	jal	mad_bit_read
	li	$5,2			# 0x2

	move	$3,$2
	li	$2,3			# 0x3
	beq	$3,$2,$L63
	sll	$2,$3,2

	lui	$3,%hi(samplerate_table)
	addiu	$3,$3,%lo(samplerate_table)
	addu	$2,$2,$3
	lw	$5,28($17)
	lw	$4,0($2)
	andi	$3,$5,0x1000
	beq	$3,$0,$L46
	sw	$4,20($17)

	srl	$2,$4,1
	andi	$3,$5,0x4000
	beq	$3,$0,$L46
	sw	$2,20($17)

	srl	$2,$4,2
	sw	$2,20($17)
$L46:
	move	$4,$16
	jal	mad_bit_read
	li	$5,1			# 0x1

	beq	$2,$0,$L65
	move	$4,$16

	lw	$2,28($17)
	ori	$2,$2,0x80
	sw	$2,28($17)
$L65:
	jal	mad_bit_read
	li	$5,1			# 0x1

	beq	$2,$0,$L66
	move	$4,$16

	lw	$2,32($17)
	ori	$2,$2,0x100
	sw	$2,32($17)
$L66:
	jal	mad_bit_read
	li	$5,2			# 0x2

	li	$3,3			# 0x3
	subu	$3,$3,$2
	move	$4,$16
	li	$5,2			# 0x2
	jal	mad_bit_read
	sw	$3,4($17)

	sw	$2,8($17)
	move	$4,$16
	jal	mad_bit_read
	li	$5,1			# 0x1

	beq	$2,$0,$L67
	move	$4,$16

	lw	$2,28($17)
	ori	$2,$2,0x20
	sw	$2,28($17)
$L67:
	jal	mad_bit_read
	li	$5,1			# 0x1

	beq	$2,$0,$L68
	move	$4,$16

	lw	$2,28($17)
	ori	$2,$2,0x40
	sw	$2,28($17)
$L68:
	jal	mad_bit_read
	li	$5,2			# 0x2

	lw	$3,28($17)
	andi	$3,$3,0x10
	beq	$3,$0,$L34
	sw	$2,12($17)

	move	$4,$16
	jal	mad_bit_read
	li	$5,16			# 0x10

	sh	$2,26($17)
	move	$3,$0
$L34:
	lw	$31,28($sp)
	lw	$18,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	move	$2,$3
	j	$31
	addiu	$sp,$sp,32

$L30:
	lw	$2,28($17)
	andi	$2,$2,0x4000
	beq	$2,$0,$L69
	nop

	li	$2,257			# 0x101
	li	$3,-1			# 0xffffffffffffffff
	j	$L34
	sw	$2,60($18)

$L41:
	lw	$3,0($17)
	sll	$2,$3,4
	subu	$2,$2,$3
	addu	$2,$2,$4
	lui	$3,%hi(bitrate_table)
	sll	$2,$2,2
	addiu	$3,$3,%lo(bitrate_table)
	addu	$2,$2,$3
	lw	$4,-60($2)
	j	$L43
	sw	$4,16($17)

$L61:
	lw	$2,28($17)
	lw	$4,28($18)
	ori	$2,$2,0x10
	lw	$5,32($18)
	sw	$2,28($17)
	jal	mad_bit_crc
	li	$7,65535			# 0xffff

	j	$L37
	sh	$2,24($17)

$L60:
	li	$2,258			# 0x102
	li	$3,-1			# 0xffffffffffffffff
	j	$L34
	sw	$2,60($18)

$L62:
	li	$3,-1			# 0xffffffffffffffff
	j	$L34
	sw	$2,60($18)

$L63:
	li	$2,260			# 0x104
	li	$3,-1			# 0xffffffffffffffff
	j	$L34
	sw	$2,60($18)

	.set	macro
	.set	reorder
	.end	decode_header
	.section	.text.mad_header_decode,"ax",@progbits
	.align	2
	.align	5
	.globl	mad_header_decode
	.ent	mad_header_decode
	.type	mad_header_decode, @function
mad_header_decode:
	.frame	$sp,192,$31		# vars= 136, regs= 10/0, args= 16, gp= 0
	.mask	0xc0ff0000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-192
	sw	$19,164($sp)
	sw	$18,160($sp)
	sw	$31,188($sp)
	sw	$fp,184($sp)
	sw	$23,180($sp)
	sw	$22,176($sp)
	sw	$21,172($sp)
	sw	$20,168($sp)
	sw	$17,156($sp)
	sw	$16,152($sp)
	move	$18,$5
	lw	$5,24($5)
	move	$19,$4
	beq	$5,$0,$L153
	lw	$fp,4($18)

	lw	$3,8($18)
	beq	$3,$0,$L144
	nop

	lw	$2,12($18)
	bne	$2,$0,$L166
	subu	$4,$fp,$5

	lw	$5,20($18)
	subu	$4,$fp,$5
$L166:
	sltu	$2,$4,$3
	beq	$2,$0,$L78
	li	$2,1			# 0x1

	subu	$2,$3,$4
	sw	$2,8($18)
	li	$2,1			# 0x1
	sw	$fp,24($18)
	sw	$2,60($18)
$L73:
	li	$3,-1			# 0xffffffffffffffff
$L172:
	sw	$0,12($18)
$L142:
	lw	$31,188($sp)
	lw	$fp,184($sp)
	lw	$23,180($sp)
	lw	$22,176($sp)
	lw	$21,172($sp)
	lw	$20,168($sp)
	lw	$19,164($sp)
	lw	$18,160($sp)
	lw	$17,156($sp)
	lw	$16,152($sp)
	move	$2,$3
	j	$31
	addiu	$sp,$sp,192

$L144:
	lw	$2,12($18)
$L74:
	beq	$2,$0,$L80
	subu	$2,$fp,$5

	slt	$2,$2,8
	bne	$2,$0,$L151
	li	$2,255			# 0xff

	lbu	$3,0($5)
	bne	$3,$2,$L154
	li	$3,224			# 0xe0

	lbu	$2,1($5)
	andi	$2,$2,0xe0
	bne	$2,$3,$L86
	addiu	$4,$5,1

	addiu	$20,$18,28
$L87:
	sw	$4,24($18)
	sw	$5,20($18)
	jal	mad_bit_init
	move	$4,$20

	move	$4,$19
	jal	decode_header
	move	$5,$18

	li	$3,-1			# 0xffffffffffffffff
	beq	$2,$3,$L172
	li	$2,1			# 0x1

	lw	$3,0($19)
	beq	$3,$2,$L155
	li	$2,3			# 0x3

	beq	$3,$2,$L156
	nop

$L96:
	li	$6,1152			# 0x480
$L95:
	lw	$7,20($19)
$L173:
	addiu	$4,$19,36
	jal	mad_timer_set
	move	$5,$0

	lw	$4,16($19)
	bne	$4,$0,$L146
	li	$3,1			# 0x1

	lw	$3,16($18)
	beq	$3,$0,$L101
	nop

	lw	$2,12($18)
	beq	$2,$0,$L101
	li	$2,3			# 0x3

	lw	$5,0($19)
	bne	$5,$2,$L104
	li	$2,589824			# 0x90000

	ori	$2,$2,0xc400
	sltu	$2,$2,$3
	beq	$2,$0,$L104
	nop

	lw	$6,28($19)
	lw	$2,28($18)
	lw	$4,32($18)
	srl	$3,$6,7
	andi	$3,$3,0x1
	sw	$3,140($sp)
	sw	$2,16($sp)
	sw	$4,20($sp)
	andi	$2,$6,0x1000
$L165:
	bne	$2,$0,$L157
	li	$2,72			# 0x48

$L107:
	li	$3,144			# 0x90
	sw	$3,144($sp)
$L110:
	lw	$4,140($sp)
	move	$23,$0
	sll	$4,$4,2
	sw	$4,136($sp)
	move	$4,$18
	addiu	$22,$sp,68
	addiu	$17,$18,64
	addiu	$21,$sp,24
	jal	mad_stream_sync
	addiu	$16,$19,32

	bne	$2,$0,$L167
	lw	$2,20($sp)

	move	$6,$18
$L168:
	move	$7,$22
$L113:
	lw	$2,0($6)
	lw	$3,4($6)
	lw	$4,8($6)
	lw	$5,12($6)
	addiu	$6,$6,16
	sw	$2,0($7)
	sw	$3,4($7)
	sw	$4,8($7)
	sw	$5,12($7)
	bne	$6,$17,$L113
	addiu	$7,$7,16

	move	$6,$19
	move	$7,$21
$L114:
	lw	$2,0($6)
	lw	$3,4($6)
	lw	$4,8($6)
	lw	$5,12($6)
	addiu	$6,$6,16
	sw	$2,0($7)
	sw	$3,4($7)
	sw	$4,8($7)
	sw	$5,12($7)
	bne	$6,$16,$L114
	addiu	$7,$7,16

	lw	$2,8($6)
	lw	$3,0($6)
	lw	$6,4($6)
	move	$4,$21
	move	$5,$22
	sw	$2,8($7)
	sw	$3,0($7)
	jal	decode_header
	sw	$6,4($7)

	bne	$2,$0,$L115
	lw	$2,24($sp)

	lw	$3,0($19)
	beq	$2,$3,$L159
	lw	$2,44($sp)

$L115:
	move	$4,$20
$L169:
	jal	mad_bit_skip
	li	$5,8			# 0x8

	jal	mad_stream_sync
	move	$4,$18

	beq	$2,$0,$L168
	move	$6,$18