mpc.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 793 行

	.file	1 "mpc.c"
	.section .mdebug.abi32
	.previous
	.section	.text.mpc_probe,"ax",@progbits
	.align	2
	.align	5
	.ent	mpc_probe
	.type	mpc_probe, @function
mpc_probe:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	lw	$4,4($4)
	li	$2,77			# 0x4d
	lbu	$3,0($4)
	beq	$3,$2,$L15
	li	$2,73			# 0x49

	beq	$3,$2,$L16
	nop

$L4:
	j	$31
	move	$2,$0

$L16:
	lbu	$3,1($4)
	li	$2,68			# 0x44
	bne	$3,$2,$L4
	nop

	lbu	$3,2($4)
	li	$2,51			# 0x33
	bne	$3,$2,$L4
	nop

	j	$31
	li	$2,50			# 0x32

$L15:
	lbu	$3,1($4)
	li	$2,80			# 0x50
	bne	$3,$2,$L4
	nop

	lbu	$3,2($4)
	li	$2,43			# 0x2b
	bne	$3,$2,$L4
	nop

	lbu	$3,3($4)
	li	$2,23			# 0x17
	beq	$3,$2,$L7
	nop

	li	$2,7			# 0x7
	bne	$3,$2,$L4
	nop

$L7:
	j	$31
	li	$2,100			# 0x64

	.set	macro
	.set	reorder
	.end	mpc_probe
	.section	.text.mpc_read_seek,"ax",@progbits
	.align	2
	.align	5
	.ent	mpc_read_seek
	.type	mpc_read_seek, @function
mpc_read_seek:
	.frame	$sp,112,$31		# vars= 56, regs= 8/0, args= 24, gp= 0
	.mask	0x807f0000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-112
	sw	$16,80($sp)
	sll	$5,$5,2
	addiu	$16,$6,-32
	sw	$22,104($sp)
	sw	$19,92($sp)
	sw	$18,88($sp)
	sw	$17,84($sp)
	sw	$31,108($sp)
	sw	$21,100($sp)
	sw	$20,96($sp)
	addu	$5,$5,$4
	sltu	$2,$16,$6
	addiu	$17,$7,-1
	lw	$20,100($5)
	addu	$17,$2,$17
	lw	$2,128($sp)
	move	$22,$4
	sw	$2,16($sp)
	move	$18,$6
	move	$19,$7
	move	$4,$20
	move	$6,$16
	move	$7,$17
	jal	av_index_search_timestamp
	lw	$21,12($22)

	bltz	$2,$L18
	move	$3,$2

	sll	$3,$3,3
	lw	$4,144($20)
	sll	$2,$2,5
	subu	$2,$2,$3
	addu	$2,$2,$4
	lw	$3,0($2)
	move	$2,$0
	sw	$3,4($21)
$L20:
	lw	$31,108($sp)
	lw	$22,104($sp)
	lw	$21,100($sp)
	lw	$20,96($sp)
	lw	$19,92($sp)
	lw	$18,88($sp)
	lw	$17,84($sp)
	lw	$16,80($sp)
	j	$31
	addiu	$sp,$sp,112

$L18:
	bltz	$19,$L21
	move	$5,$0

	slt	$2,$19,$5
	bne	$2,$0,$L25
	lw	$4,12($21)

	beq	$19,$0,$L52
	nop

$L21:
	j	$L20
	li	$2,-1			# 0xffffffffffffffff

$L52:
	sltu	$2,$18,$4
	beq	$2,$0,$L20
	li	$2,-1			# 0xffffffffffffffff

$L25:
	lw	$2,24($21)
	beq	$2,$0,$L36
	lw	$19,4($21)

	addiu	$2,$2,-1
	slt	$3,$0,$17
	sw	$2,4($21)
$L46:
	beq	$3,$0,$L51
	addiu	$18,$sp,24

$L55:
	move	$4,$22
	jal	av_read_frame
	move	$5,$18

	bltz	$2,$L37
	move	$4,$18

$L53:
	lw	$2,60($sp)
	beq	$2,$0,$L55
	addiu	$18,$sp,24

	jal	$2
	addiu	$18,$sp,24

	move	$4,$22
	jal	av_read_frame
	move	$5,$18

	bgez	$2,$L53
	move	$4,$18

$L37:
	li	$2,-1			# 0xffffffffffffffff
	j	$L20
	sw	$19,4($21)

$L54:
	beq	$2,$0,$L20
	move	$2,$0

	jal	av_read_frame
	nop

	bltz	$2,$L37
	move	$4,$18

	lw	$2,60($sp)
	beq	$2,$0,$L51
	nop

	jal	$2
	nop

$L51:
	lw	$2,4($21)
	addiu	$18,$sp,24
	move	$4,$22
	move	$5,$18
	beq	$17,$0,$L54
	sltu	$2,$2,$16

	j	$L20
	move	$2,$0

$L36:
	j	$L46
	slt	$3,$0,$17

	.set	macro
	.set	reorder
	.end	mpc_read_seek
	.section	.text.mpc_read_close,"ax",@progbits
	.align	2
	.align	5
	.ent	mpc_read_close
	.type	mpc_read_close, @function
mpc_read_close:
	.frame	$sp,24,$31		# vars= 0, regs= 1/0, args= 16, gp= 0
	.mask	0x80000000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-24
	sw	$31,16($sp)
	lw	$4,12($4)
	jal	av_freep
	addiu	$4,$4,16

	lw	$31,16($sp)
	move	$2,$0
	j	$31
	addiu	$sp,$sp,24

	.set	macro
	.set	reorder
	.end	mpc_read_close
	.section	.rodata.str1.4,"aMS",@progbits,1
	.align	2
$LC0:
	.ascii	"Not a Musepack file\012\000"
	.align	2
$LC1:
	.ascii	"Skipping %d(%X) bytes of ID3 data\012\000"
	.align	2
$LC2:
	.ascii	"Can demux Musepack SV7, got version %02X\012\000"
	.align	2
$LC3:
	.ascii	"Too many frames, seeking is not possible\012\000"
	.globl	__divdi3
	.section	.text.mpc_read_header,"ax",@progbits
	.align	2
	.align	5
	.ent	mpc_read_header
	.type	mpc_read_header, @function
mpc_read_header:
	.frame	$sp,56,$31		# vars= 0, regs= 8/0, args= 24, gp= 0
	.mask	0x807f0000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-56
	sw	$19,36($sp)
	addiu	$19,$4,16
	sw	$22,48($sp)
	sw	$21,44($sp)
	sw	$31,52($sp)
	sw	$20,40($sp)
	sw	$18,32($sp)
	sw	$17,28($sp)
	sw	$16,24($sp)
	move	$21,$4
	move	$4,$19
	jal	get_le24
	lw	$20,12($21)

	move	$3,$2
	li	$2,2818048			# 0x2b0000
	ori	$22,$2,0x504d
	beq	$3,$22,$L59
	li	$2,3342336			# 0x330000

	ori	$2,$2,0x4449
	bne	$3,$2,$L74
	li	$6,3			# 0x3

	move	$7,$0
	jal	url_fskip
	move	$4,$19

	jal	get_byte
	move	$4,$19

	move	$4,$19
	jal	get_byte
	sll	$18,$2,21

	sll	$2,$2,14
	move	$4,$19
	jal	get_byte
	or	$18,$18,$2

	move	$4,$19
	jal	get_byte
	move	$16,$2

	or	$18,$18,$2
	sll	$16,$16,7
	or	$16,$16,$18
	lui	$6,%hi($LC1)
	addiu	$6,$6,%lo($LC1)
	move	$4,$21
	li	$5,2			# 0x2
	move	$7,$16
	sra	$17,$16,31
	jal	av_log
	sw	$16,16($sp)

	move	$4,$19
	move	$6,$16
	jal	url_fskip
	move	$7,$17

	jal	get_le24
	move	$4,$19

	bne	$2,$22,$L78
	lui	$6,%hi($LC0)

$L59:
	jal	get_byte
	move	$4,$19

	move	$7,$2
	sw	$2,0($20)
	li	$2,7			# 0x7
	beq	$7,$2,$L65
	li	$2,23			# 0x17

	bne	$7,$2,$L75
	lui	$6,%hi($LC2)

$L65:
	jal	get_le32
	move	$4,$19

	move	$3,$0
	srl	$4,$2,28
	sll	$7,$3,4
	move	$5,$2
	or	$7,$4,$7
	sll	$6,$2,4
	blez	$7,$L76
	sw	$5,12($20)

	lui	$6,%hi($LC3)
$L79:
	move	$4,$21
	addiu	$6,$6,%lo($LC3)
	jal	av_log
	move	$5,$0

	li	$2,-1			# 0xffffffffffffffff
$L63:
	lw	$31,52($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,56

$L76:
	bne	$7,$0,$L68
	sltu	$2,$6,-1

	beq	$2,$0,$L79
	lui	$6,%hi($LC3)

$L68:
	jal	av_malloc
	sll	$4,$5,4

	sw	$2,16($20)
	li	$3,8			# 0x8
	li	$2,-1			# 0xffffffffffffffff
	sw	$2,8($20)
	sw	$3,20($20)
	sw	$0,4($20)
	sw	$0,24($20)
	move	$4,$21
	jal	av_new_stream
	move	$5,$0

	beq	$2,$0,$L77
	move	$18,$2

	lw	$16,8($2)
	li	$3,1			# 0x1
	li	$2,65536			# 0x10000
	li	$4,16			# 0x10
	sw	$3,224($16)
	ori	$2,$2,0x501f
	li	$3,2			# 0x2
	sw	$3,68($16)
	sw	$4,28($16)
	sw	$4,392($16)
	sw	$2,228($16)
	jal	av_mallocz
	li	$4,24			# 0x18

	lw	$3,8($18)
	sw	$2,24($16)
	lw	$5,24($3)
	move	$4,$19
	jal	get_buffer
	li	$6,16			# 0x10

	lw	$6,8($18)
	move	$4,$18
	lw	$2,24($6)
	li	$5,32			# 0x20
	lbu	$3,2($2)
	lui	$2,%hi(mpc_rate)
	andi	$3,$3,0x3
	addiu	$2,$2,%lo(mpc_rate)
	sll	$3,$3,2
	addu	$3,$3,$2
	lw	$7,0($3)
	sw	$7,64($6)
	jal	av_set_pts_info
	li	$6,1152			# 0x480

	lw	$3,12($20)
	lw	$8,8($18)
	li	$4,1151991808			# 0x44aa0000
	ori	$4,$4,0x2000
	multu	$3,$4
	lw	$2,64($8)
	move	$3,$0
	move	$6,$2
	sra	$7,$2,31
	mflo	$4
	move	$2,$0
	mfhi	$5
	sw	$2,3824($21)
	jal	__divdi3
	sw	$3,3828($21)

	sw	$2,3832($21)
	sw	$3,3836($21)
	lw	$31,52($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)
	move	$2,$0
	j	$31
	addiu	$sp,$sp,56

$L74:
	lui	$6,%hi($LC0)
$L78:
	move	$4,$21
	addiu	$6,$6,%lo($LC0)
	jal	av_log
	move	$5,$0

	lw	$31,52($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)
	li	$2,-1			# 0xffffffffffffffff
	j	$31
	addiu	$sp,$sp,56

$L75:
	move	$4,$21
	addiu	$6,$6,%lo($LC2)
	jal	av_log
	move	$5,$0

	j	$L63
	li	$2,-1			# 0xffffffffffffffff

$L77:
	j	$L63
	li	$2,-12			# 0xfffffffffffffff4

	.set	macro
	.set	reorder
	.end	mpc_read_header
	.section	.text.mpc_read_packet,"ax",@progbits
	.align	2
	.align	5
	.ent	mpc_read_packet
	.type	mpc_read_packet, @function
mpc_read_packet:
	.frame	$sp,88,$31		# vars= 8, regs= 10/0, args= 40, gp= 0
	.mask	0xc0ff0000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-88
	sw	$21,68($sp)
	sw	$20,64($sp)
	sw	$31,84($sp)
	sw	$fp,80($sp)
	sw	$23,76($sp)
	sw	$22,72($sp)
	sw	$19,60($sp)
	sw	$18,56($sp)
	sw	$17,52($sp)
	sw	$16,48($sp)
	lw	$16,12($4)
	move	$21,$5
	lw	$17,4($16)
	lw	$2,12($16)
	move	$20,$4
	sltu	$2,$17,$2
	bne	$2,$0,$L81
	move	$5,$17

	li	$3,-1			# 0xffffffffffffffff
$L83:
	lw	$31,84($sp)
	lw	$fp,80($sp)
	lw	$23,76($sp)
	lw	$22,72($sp)
	lw	$21,68($sp)
	lw	$20,64($sp)
	lw	$19,60($sp)
	lw	$18,56($sp)
	lw	$17,52($sp)
	lw	$16,48($sp)
	move	$2,$3
	j	$31
	addiu	$sp,$sp,88

$L81:
	lw	$2,8($16)
	addiu	$2,$2,1
	beq	$17,$2,$L99
	sll	$2,$17,4

	lw	$3,16($16)
	addu	$2,$2,$3
	lw	$6,0($2)
	lw	$7,4($2)
	addiu	$22,$4,16
	move	$4,$22
	jal	url_fseek
	sw	$0,16($sp)

	lw	$5,4($16)
	lw	$4,16($16)
	sll	$2,$5,4
	addu	$2,$2,$4
	lw	$3,12($2)
	sw	$3,20($16)
	move	$23,$3
$L84:
	addiu	$2,$5,1
	sw	$5,8($16)
	move	$4,$22
	jal	url_ftell
	sw	$2,4($16)

	move	$4,$22
	sw	$3,44($sp)
	jal	get_le32
	sw	$2,40($sp)

	slt	$3,$23,13
	move	$18,$2
	beq	$3,$0,$L86
	move	$19,$0

	li	$4,12			# 0xc
	subu	$4,$4,$23
	nor	$2,$0,$4
	sll	$5,$19,1
	sll	$5,$5,$2
	srl	$2,$18,$4
	andi	$6,$4,0x20
	sra	$3,$19,$4
	or	$2,$5,$2
	li	$4,983040			# 0xf0000
	movn	$2,$3,$6
	ori	$4,$4,0xffff
	and	$2,$2,$4
$L88:
	addiu	$fp,$23,20
	lw	$6,40($sp)
	lw	$7,44($sp)
	addu	$19,$2,$fp
	move	$4,$22
	jal	url_fseek
	sw	$0,16($sp)

	addiu	$4,$19,31
	li	$2,-32			# 0xffffffffffffffe0
	lw	$3,24($16)
	and	$4,$4,$2
	beq	$17,$3,$L100
	sra	$18,$4,3

$L89:
	andi	$2,$19,0x1f
	sw	$2,20($16)
	move	$4,$21
	jal	av_new_packet
	move	$5,$18

	bltz	$2,$L91
	sra	$6,$17,31

	lw	$3,16($21)
	sb	$fp,0($3)
	lw	$2,4($16)
	lw	$3,12($16)
	lw	$4,16($21)
	sltu	$2,$3,$2
	sb	$2,1($4)
	lw	$5,16($21)
	sw	$6,4($21)
	sw	$17,0($21)
	sw	$0,24($21)
	addiu	$5,$5,4
	move	$4,$22
	jal	get_buffer
	move	$6,$18

	move	$17,$2
	lw	$2,20($16)
	bne	$2,$0,$L101
	move	$4,$22

	slt	$2,$17,$18
$L103:
	bne	$2,$0,$L102
	addiu	$2,$17,4

	move	$3,$0
	j	$L83
	sw	$2,20($21)

$L99:
	lw	$23,20($16)
	j	$L84
	addiu	$22,$4,16

$L86:
	jal	get_le32
	move	$4,$22

	move	$3,$0
	li	$6,44			# 0x2c
	subu	$6,$6,$23
	or	$5,$18,$3
	move	$4,$0
	or	$4,$4,$2
	sll	$3,$5,1
	nor	$2,$0,$6
	sll	$3,$3,$2
	srl	$4,$4,$6
	andi	$7,$6,0x20
	or	$4,$3,$4
	sra	$5,$5,$6
	li	$2,983040			# 0xf0000
	movn	$4,$5,$7
	ori	$2,$2,0xffff
	j	$L88
	and	$2,$4,$2

$L91:
	j	$L83
	li	$3,-5			# 0xfffffffffffffffb

$L101:
	li	$6,-4			# 0xfffffffffffffffc
	li	$7,-1			# 0xffffffffffffffff
	li	$2,1			# 0x1
	jal	url_fseek
	sw	$2,16($sp)

	j	$L103
	slt	$2,$17,$18

$L100:
	lw	$6,16($16)
	sll	$5,$17,4
	addu	$5,$5,$6
	lw	$7,44($sp)
	lw	$6,40($sp)
	lw	$4,100($20)
	sra	$3,$17,31
	sw	$6,0($5)
	sw	$7,4($5)
	sw	$23,12($5)
	sw	$18,8($5)
	move	$7,$3
	li	$5,1			# 0x1
	move	$6,$17
	sw	$3,20($sp)
	sw	$5,32($sp)
	sw	$17,16($sp)
	sw	$18,24($sp)
	jal	av_add_index_entry
	sw	$0,28($sp)

	lw	$3,24($16)
	addiu	$3,$3,1
	j	$L89
	sw	$3,24($16)

$L102:
	lw	$2,36($21)
	beq	$2,$0,$L91
	nop

	jal	$2
	move	$4,$21

	j	$L83
	li	$3,-5			# 0xfffffffffffffffb

	.set	macro
	.set	reorder
	.end	mpc_read_packet
	.globl	mpc_demuxer
	.section	.rodata.str1.4
	.align	2
$LC4:
	.ascii	"mpc\000"
	.align	2
$LC5:
	.ascii	"musepack\000"
	.data
	.align	2
	.type	mpc_demuxer, @object
	.size	mpc_demuxer, 64
mpc_demuxer:
	.word	$LC4
	.word	$LC5
	.word	28
	.word	mpc_probe
	.word	mpc_read_header
	.word	mpc_read_packet
	.word	mpc_read_close
	.word	mpc_read_seek
	.space	8
	.word	$LC4
	.space	20
	.rdata
	.align	2
	.type	mpc_rate, @object
	.size	mpc_rate, 16
mpc_rate:
	.word	44100
	.word	48000
	.word	37800
	.word	32000
	.ident	"GCC: (GNU) 4.1.2"