wv.s

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」· S 代码 · 共 766 行

.file	1 "wv.c"
.section .mdebug.abi32
.previous
.section	.text.wv_probe,"ax",@progbits
.align	2
.align	5
.ent	wv_probe
.type	wv_probe, @function
wv_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	$2,8($4)
slt	$2,$2,33
bne	$2,$0,$L12
move	$5,$0

lw	$4,4($4)
li	$2,119			# 0x77
lbu	$3,0($4)
beq	$3,$2,$L11
nop

$L8:
$L12:
j	$31
move	$2,$5

$L11:
lbu	$3,1($4)
li	$2,118			# 0x76
bne	$3,$2,$L12
move	$5,$0

lbu	$3,2($4)
li	$2,112			# 0x70
bne	$3,$2,$L12
nop

lbu	$3,3($4)
li	$2,107			# 0x6b
beq	$3,$2,$L8
li	$5,100			# 0x64

j	$L12
move	$5,$0

.set	macro
.set	reorder
.end	wv_probe
.section	.text.wv_read_close,"ax",@progbits
.align	2
.align	5
.ent	wv_read_close
.type	wv_read_close, @function
wv_read_close:
.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
.mask	0x00000000,0
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

j	$31
move	$2,$0

.set	macro
.set	reorder
.end	wv_read_close
.section	.rodata.str1.4,"aMS",@progbits,1
.align	2
$LC0:
.ascii	"Incorrect block size %i\012\000"
.align	2
$LC1:
.ascii	"Unsupported version %03X\012\000"
.align	2
$LC2:
.ascii	"Floating point data is not supported\012\000"
.align	2
$LC3:
.ascii	"Hybrid coding mode is not supported\012\000"
.align	2
$LC4:
.ascii	"Unknown sampling rate\012\000"
.align	2
$LC5:
.ascii	"Bits per sample differ, this block: %i, header block: %i"
.ascii	"\012\000"
.align	2
$LC6:
.ascii	"Channels differ, this block: %i, header block: %i\012\000"
.align	2
$LC7:
.ascii	"Sampling rate differ, this block: %i, header block: %i\012"
.ascii	"\000"
.section	.text.wv_read_block_header,"ax",@progbits
.align	2
.align	5
.ent	wv_read_block_header
.type	wv_read_block_header, @function
wv_read_block_header:
.frame	$sp,48,$31		# vars= 0, regs= 6/0, args= 24, gp= 0
.mask	0x801f0000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-48
sw	$31,44($sp)
sw	$19,36($sp)
sw	$18,32($sp)
sw	$20,40($sp)
sw	$17,28($sp)
sw	$16,24($sp)
lw	$17,12($4)
move	$19,$4
move	$4,$5
jal	url_ftell
move	$18,$5

sw	$3,52($17)
sw	$2,48($17)
jal	get_le32
move	$4,$18

li	$3,1802502144			# 0x6b700000
ori	$3,$3,0x7677
beq	$2,$3,$L48
li	$2,-1			# 0xffffffffffffffff

$L18:
lw	$31,44($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,48

$L48:
jal	get_le32
move	$4,$18

addiu	$20,$2,-24
move	$7,$2
li	$2,983040			# 0xf0000
ori	$2,$2,0xfc01
sltu	$2,$20,$2
beq	$2,$0,$L49
lui	$6,%hi($LC0)

sw	$7,0($17)
jal	get_le16
move	$4,$18

move	$7,$2
addiu	$2,$2,-1026
sltu	$2,$2,15
beq	$2,$0,$L50
lui	$6,%hi($LC1)

jal	get_byte
move	$4,$18

jal	get_byte
move	$4,$18

jal	get_le32
move	$4,$18

sw	$2,20($17)
jal	get_le32
move	$4,$18

addiu	$16,$17,32
move	$4,$18
move	$5,$16
sw	$2,24($17)
jal	get_buffer
li	$6,12			# 0xc

lbu	$3,7($16)
lbu	$4,6($16)
lbu	$5,4($16)
sll	$4,$4,16
lbu	$2,5($16)
sll	$3,$3,24
or	$3,$3,$4
or	$3,$3,$5
sll	$2,$2,8
or	$5,$2,$3
andi	$4,$5,0x80
bne	$4,$0,$L51
sw	$5,4($17)

andi	$2,$5,0x8
bne	$2,$0,$L52
srl	$3,$5,21

lui	$2,%hi(wv_rates)
addiu	$2,$2,%lo(wv_rates)
andi	$3,$3,0x3c
addu	$3,$3,$2
lw	$8,0($3)
andi	$4,$5,0x4
li	$9,2			# 0x2
li	$2,1			# 0x1
li	$3,-1			# 0xffffffffffffffff
beq	$8,$3,$L53
movn	$9,$2,$4

andi	$2,$5,0x3
lw	$3,16($17)
addiu	$2,$2,1
beq	$3,$0,$L54
sll	$7,$2,3

lw	$2,12($17)
beq	$2,$0,$L55
nop

$L34:
lw	$2,8($17)
beq	$2,$0,$L56
nop

$L36:
lw	$2,4($17)
beq	$2,$0,$L38
nop

lw	$2,16($17)
$L61:
bne	$7,$2,$L57
move	$5,$0

lw	$2,12($17)
bne	$9,$2,$L58
nop

lw	$2,8($17)
bne	$8,$2,$L59
nop

$L38:
sw	$20,0($17)
lw	$31,44($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,48

$L56:
lw	$2,4($17)
$L62:
beq	$2,$0,$L38
sw	$8,8($17)

j	$L61
lw	$2,16($17)

$L55:
lw	$2,8($17)
$L63:
bne	$2,$0,$L36
sw	$9,12($17)

j	$L62
lw	$2,4($17)

$L54:
lw	$2,12($17)
bne	$2,$0,$L34
sw	$7,16($17)

j	$L63
lw	$2,8($17)

$L59:
lui	$6,%hi($LC7)
move	$4,$19
addiu	$6,$6,%lo($LC7)
move	$7,$8
jal	av_log
sw	$2,16($sp)

j	$L18
li	$2,-1			# 0xffffffffffffffff

$L49:
move	$4,$19
addiu	$6,$6,%lo($LC0)
jal	av_log
move	$5,$0

j	$L18
li	$2,-1			# 0xffffffffffffffff

$L50:
move	$4,$19
addiu	$6,$6,%lo($LC1)
jal	av_log
move	$5,$0

j	$L18
li	$2,-1			# 0xffffffffffffffff

$L57:
lui	$6,%hi($LC5)
move	$4,$19
addiu	$6,$6,%lo($LC5)
jal	av_log
sw	$2,16($sp)

j	$L18
li	$2,-1			# 0xffffffffffffffff

$L58:
lui	$6,%hi($LC6)
move	$4,$19
addiu	$6,$6,%lo($LC6)
move	$7,$9
jal	av_log
sw	$2,16($sp)

j	$L18
li	$2,-1			# 0xffffffffffffffff

$L51:
lui	$6,%hi($LC2)
move	$4,$19
addiu	$6,$6,%lo($LC2)
jal	av_log
move	$5,$0

j	$L18
li	$2,-1			# 0xffffffffffffffff

$L52:
lui	$6,%hi($LC3)
move	$4,$19
addiu	$6,$6,%lo($LC3)
jal	av_log
move	$5,$0

j	$L18
li	$2,-1			# 0xffffffffffffffff

$L53:
lui	$6,%hi($LC4)
move	$4,$19
addiu	$6,$6,%lo($LC4)
jal	av_log
move	$5,$0

j	$L18
li	$2,-1			# 0xffffffffffffffff

.set	macro
.set	reorder
.end	wv_read_block_header
.section	.text.wv_read_packet,"ax",@progbits
.align	2
.align	5
.ent	wv_read_packet
.type	wv_read_packet, @function
wv_read_packet:
.frame	$sp,64,$31		# vars= 0, regs= 5/0, args= 40, gp= 0
.mask	0x800f0000,-8
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-64
sw	$17,44($sp)
addiu	$17,$4,16
sw	$19,52($sp)
sw	$18,48($sp)
move	$19,$4
sw	$31,56($sp)
sw	$16,40($sp)
move	$4,$17
move	$18,$5
jal	url_feof
lw	$16,12($19)

bne	$2,$0,$L81
lw	$31,56($sp)

lw	$2,28($16)
bne	$2,$0,$L77
move	$4,$19

$L67:
lw	$5,0($16)
move	$4,$18
jal	av_new_packet
addiu	$5,$5,12

bltz	$2,$L78
addiu	$5,$16,32

lw	$4,16($18)
jal	memcpy
li	$6,12			# 0xc

lw	$5,16($18)
lw	$6,0($16)
move	$4,$17
jal	get_buffer
addiu	$5,$5,12

move	$4,$2
lw	$2,0($16)
bne	$4,$2,$L79
li	$5,1			# 0x1

addiu	$4,$4,12
sw	$0,24($18)
sw	$5,28($16)
sw	$4,20($18)
lw	$2,24($16)
move	$3,$0
sw	$2,0($18)
sw	$3,4($18)
lw	$6,48($16)
lw	$7,52($16)
lw	$4,100($19)
sw	$2,16($sp)
sw	$3,20($sp)
sw	$5,32($sp)
sw	$0,24($sp)
jal	av_add_index_entry
sw	$0,28($sp)

move	$2,$0
$L70:
lw	$31,56($sp)
$L82:
lw	$19,52($sp)
lw	$18,48($sp)
lw	$17,44($sp)
lw	$16,40($sp)
j	$31
addiu	$sp,$sp,64

$L77:
jal	wv_read_block_header
move	$5,$17

bgez	$2,$L67
li	$2,-1			# 0xffffffffffffffff

j	$L82
lw	$31,56($sp)

$L79:
lw	$2,36($18)
bne	$2,$0,$L80
lw	$31,56($sp)

$L81:
lw	$19,52($sp)
lw	$18,48($sp)
lw	$17,44($sp)
lw	$16,40($sp)
li	$2,-5			# 0xfffffffffffffffb
j	$31
addiu	$sp,$sp,64

$L78:
lw	$31,56($sp)
lw	$19,52($sp)
lw	$18,48($sp)
lw	$17,44($sp)
lw	$16,40($sp)
li	$2,-12			# 0xfffffffffffffff4
j	$31
addiu	$sp,$sp,64

$L80:
jal	$2
move	$4,$18

j	$L70
li	$2,-5			# 0xfffffffffffffffb

.set	macro
.set	reorder
.end	wv_read_packet
.globl	__divdi3
.section	.text.wv_read_header,"ax",@progbits
.align	2
.align	5
.ent	wv_read_header
.type	wv_read_header, @function
wv_read_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	$17,20($sp)
addiu	$5,$4,16
sw	$31,28($sp)
sw	$18,24($sp)
sw	$16,16($sp)
move	$17,$4
jal	wv_read_block_header
lw	$16,12($4)

move	$4,$17
bgez	$2,$L89
move	$5,$0

$L84:
li	$4,-1			# 0xffffffffffffffff
$L87:
lw	$31,28($sp)
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
move	$2,$4
j	$31
addiu	$sp,$sp,32

$L89:
jal	av_new_stream
sw	$0,28($16)

move	$18,$2
move	$4,$2
li	$5,64			# 0x40
beq	$2,$0,$L84
li	$6,1			# 0x1

lw	$3,8($2)
lw	$7,12($16)
li	$2,1			# 0x1
sw	$7,68($3)
lw	$8,8($16)
sw	$2,224($3)
li	$2,65536			# 0x10000
sw	$8,64($3)
ori	$2,$2,0x501c
sw	$2,228($3)
lw	$2,16($16)
sw	$2,392($3)
jal	av_set_pts_info
lw	$7,8($16)

lw	$3,20($16)
lw	$8,8($18)
li	$4,983040			# 0xf0000
ori	$4,$4,0x4240
multu	$3,$4
lw	$2,64($8)
mflo	$4
move	$6,$2
sra	$7,$2,31
move	$3,$0
move	$2,$0
mfhi	$5
sw	$2,3824($17)
jal	__divdi3
sw	$3,3828($17)

move	$4,$0
sw	$2,3832($17)
j	$L87
sw	$3,3836($17)

.set	macro
.set	reorder
.end	wv_read_header
.section	.text.wv_read_seek,"ax",@progbits
.align	2
.align	5
.ent	wv_read_seek
.type	wv_read_seek, @function
wv_read_seek:
.frame	$sp,120,$31		# vars= 56, regs= 10/0, args= 24, gp= 0
.mask	0xc0ff0000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-120
sll	$5,$5,2
sw	$21,100($sp)
sw	$20,96($sp)
sw	$18,88($sp)
sw	$31,116($sp)
sw	$fp,112($sp)
sw	$23,108($sp)
sw	$22,104($sp)
sw	$19,92($sp)
sw	$17,84($sp)
sw	$16,80($sp)
addu	$5,$5,$4
lw	$16,100($5)
lw	$2,136($sp)
move	$18,$4
sw	$2,16($sp)
move	$4,$16
move	$20,$6
move	$21,$7
jal	av_index_search_timestamp
lw	$17,12($18)

bltz	$2,$L91
move	$3,$2

lw	$4,144($16)
sll	$3,$3,3
sll	$2,$2,5
subu	$2,$2,$3
addu	$2,$2,$4
lw	$6,0($2)
lw	$7,4($2)
li	$3,1			# 0x1
sw	$3,28($17)
addiu	$4,$18,16
jal	url_fseek
sw	$0,16($sp)

move	$2,$0
$L93:
lw	$31,116($sp)
$L118:
lw	$fp,112($sp)
lw	$23,108($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,120

$L91:
bltz	$21,$L93
li	$2,-1			# 0xffffffffffffffff

lw	$3,3836($18)
slt	$2,$21,$3
bne	$2,$0,$L116
addiu	$fp,$18,16

bne	$3,$21,$L93
li	$2,-1			# 0xffffffffffffffff

lw	$2,3832($18)
sltu	$2,$20,$2
beq	$2,$0,$L93
li	$2,-1			# 0xffffffffffffffff

addiu	$fp,$18,16
$L116:
jal	url_ftell
move	$4,$fp

move	$22,$2
move	$23,$3
addiu	$19,$sp,24
$L113:
move	$4,$18
$L117:
jal	av_read_frame
move	$5,$19

bltz	$2,$L108
move	$4,$19

lw	$2,60($sp)
lw	$16,24($sp)
beq	$2,$0,$L102
lw	$17,28($sp)

jal	$2
nop

$L102:
slt	$2,$17,$21
bne	$2,$0,$L113
sltu	$3,$16,$20

bne	$17,$21,$L93
move	$2,$0

bne	$3,$0,$L117
move	$4,$18

j	$L118
lw	$31,116($sp)

$L108:
move	$4,$fp
move	$6,$22
move	$7,$23
jal	url_fseek
sw	$0,16($sp)

j	$L93
li	$2,-1			# 0xffffffffffffffff

.set	macro
.set	reorder
.end	wv_read_seek
.globl	wv_demuxer
.section	.rodata.str1.4
.align	2
$LC8:
.ascii	"wv\000"
.align	2
$LC9:
.ascii	"WavPack\000"
.data
.align	2
.type	wv_demuxer, @object
.size	wv_demuxer, 64
wv_demuxer:
.word	$LC8
.word	$LC9
.word	56
.word	wv_probe
.word	wv_read_header
.word	wv_read_packet
.word	wv_read_close
.word	wv_read_seek
.space	32
.rdata
.align	2
.type	wv_rates, @object
.size	wv_rates, 64
wv_rates:
.word	6000
.word	8000
.word	9600
.word	11025
.word	12000
.word	16000
.word	22050
.word	24000
.word	32000
.word	44100
.word	48000
.word	64000
.word	88200
.word	96000
.word	192000
.word	-1
.ident	"GCC: (GNU) 4.1.2"