4xm.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 824 行

.file	1 "4xm.c"
.section .mdebug.abi32
.previous
.section	.text.fourxm_probe,"ax",@progbits
.align	2
.align	5
.ent	fourxm_probe
.type	fourxm_probe, @function
fourxm_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	$6,4($4)
lbu	$3,3($6)
lbu	$2,2($6)
sll	$3,$3,24
sll	$2,$2,16
lbu	$4,1($6)
lbu	$5,0($6)
or	$3,$3,$2
or	$3,$3,$5
sll	$4,$4,8
li	$2,1178992640			# 0x46460000
or	$4,$4,$3
ori	$2,$2,0x4952
bne	$4,$2,$L2
nop

lbu	$2,11($6)
lbu	$3,10($6)
sll	$2,$2,24
sll	$3,$3,16
lbu	$5,8($6)
lbu	$4,9($6)
or	$2,$2,$3
or	$2,$2,$5
sll	$4,$4,8
or	$4,$4,$2
li	$2,1447886848			# 0x564d0000
ori	$2,$2,0x5834
beq	$4,$2,$L5
li	$3,100			# 0x64

$L2:
move	$3,$0
$L5:
j	$31
move	$2,$3

.set	macro
.set	reorder
.end	fourxm_probe
.section	.text.fourxm_read_close,"ax",@progbits
.align	2
.align	5
.ent	fourxm_read_close
.type	fourxm_read_close, @function
fourxm_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	$2,12($4)
jal	av_free
lw	$4,16($2)

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

.set	macro
.set	reorder
.end	fourxm_read_close
.section	.text.fourxm_read_packet,"ax",@progbits
.align	2
.align	5
.ent	fourxm_read_packet
.type	fourxm_read_packet, @function
fourxm_read_packet:
.frame	$sp,80,$31		# vars= 16, regs= 10/0, args= 24, gp= 0
.mask	0xc0ff0000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-80
sw	$fp,72($sp)
sw	$31,76($sp)
sw	$23,68($sp)
sw	$22,64($sp)
sw	$21,60($sp)
sw	$20,56($sp)
sw	$19,52($sp)
sw	$18,48($sp)
sw	$17,44($sp)
sw	$16,40($sp)
lw	$2,12($4)
sw	$5,84($sp)
sw	$2,32($sp)
addiu	$fp,$4,16
$L39:
move	$4,$fp
$L42:
addiu	$5,$sp,24
jal	get_buffer
li	$6,8			# 0x8

bltz	$2,$L12
move	$9,$2

move	$4,$fp
lbu	$19,27($sp)
lbu	$18,26($sp)
lbu	$23,25($sp)
lbu	$21,24($sp)
lbu	$17,31($sp)
lbu	$16,30($sp)
lbu	$22,29($sp)
jal	url_feof
lbu	$20,28($sp)

bne	$2,$0,$L14
sll	$2,$18,16

sll	$3,$19,24
or	$3,$3,$2
sll	$4,$17,24
sll	$2,$16,16
or	$4,$4,$2
or	$3,$3,$21
sll	$2,$23,8
or	$3,$2,$3
li	$2,1414725632			# 0x54530000
or	$4,$4,$20
sll	$5,$22,8
ori	$2,$2,0x494c
beq	$3,$2,$L18
or	$17,$5,$4

sltu	$2,$2,$3
bne	$2,$0,$L20
li	$4,1836187648			# 0x6d720000

li	$4,846331904			# 0x32720000
ori	$2,$4,0x6669
beq	$3,$2,$L17
ori	$2,$4,0x6670

beq	$3,$2,$L17
ori	$2,$4,0x6663

beq	$3,$2,$L43
addiu	$5,$17,8

$L16:
move	$6,$17
$L44:
move	$7,$0
move	$4,$fp
li	$2,1			# 0x1
jal	url_fseek
sw	$2,16($sp)

j	$L42
move	$4,$fp

$L20:
ori	$2,$4,0x6663
beq	$3,$2,$L17
sltu	$2,$2,$3

beq	$2,$0,$L40
li	$2,1600389120			# 0x5f640000

ori	$2,$4,0x6669
beq	$3,$2,$L17
ori	$2,$4,0x6670

bne	$3,$2,$L44
move	$6,$17

$L17:
addiu	$5,$17,8
$L43:
sltu	$2,$5,$17
bne	$2,$0,$L12
li	$9,-5			# 0xfffffffffffffffb

jal	av_new_packet
lw	$4,84($sp)

bne	$2,$0,$L14
lw	$3,32($sp)

lw	$4,32($3)
lw	$5,36($3)
lw	$2,8($3)
lw	$3,84($sp)
sw	$4,0($3)
sw	$5,4($3)
move	$4,$fp
jal	url_ftell
sw	$2,24($3)

lw	$5,84($sp)
li	$6,8			# 0x8
lw	$4,16($5)
sw	$3,52($5)
sw	$2,48($5)
jal	memcpy
addiu	$5,$sp,24

lw	$2,84($sp)
move	$6,$17
lw	$5,16($2)
move	$4,$fp
jal	get_buffer
addiu	$5,$5,8

bltz	$2,$L41
move	$9,$2

$L12:
lw	$31,76($sp)
lw	$fp,72($sp)
lw	$23,68($sp)
lw	$22,64($sp)
lw	$21,60($sp)
lw	$20,56($sp)
lw	$19,52($sp)
lw	$18,48($sp)
lw	$17,44($sp)
lw	$16,40($sp)
move	$2,$9
j	$31
addiu	$sp,$sp,80

$L18:
lw	$4,32($sp)
lw	$2,32($4)
lw	$3,36($4)
addiu	$6,$2,1
sltu	$5,$6,$2
addu	$7,$5,$3
lw	$5,32($sp)
move	$4,$fp
sw	$6,32($5)
jal	get_le32
sw	$7,36($5)

j	$L42
move	$4,$fp

$L40:
ori	$2,$2,0x6e73
bne	$3,$2,$L44
move	$6,$17

jal	get_le32
move	$4,$fp

move	$4,$fp
jal	get_le32
move	$16,$2

lw	$4,32($sp)
lw	$3,20($4)
bne	$16,$3,$L16
addiu	$17,$17,-8

lw	$5,84($sp)
move	$4,$fp
jal	av_get_packet
move	$6,$17

bltz	$2,$L14
move	$9,$2

lw	$5,32($sp)
lw	$2,20($5)
lw	$6,16($5)
sll	$3,$2,4
sll	$2,$2,2
addu	$2,$2,$3
addu	$2,$2,$6
lw	$3,12($2)
lw	$2,84($sp)
lw	$4,24($5)
sw	$3,24($2)
lw	$3,32($sp)
lw	$5,28($5)
lw	$2,20($3)
lw	$3,84($sp)
sw	$4,0($3)
sw	$5,4($3)
sll	$3,$2,4
sll	$2,$2,2
addu	$2,$2,$3
addu	$2,$2,$6
lw	$3,16($2)
beq	$3,$0,$L29
nop

lw	$2,8($2)
sll	$3,$2,1
subu	$3,$17,$3
div	$0,$3,$2
teq	$2,$0,7
mflo	$3
sll	$2,$3,1
$L31:
lw	$3,32($sp)
sra	$5,$2,31
lw	$6,24($3)
lw	$7,28($3)
addu	$2,$6,$2
lw	$4,32($sp)
sltu	$8,$2,$6
addu	$3,$7,$5
addu	$3,$8,$3
sw	$2,24($4)
j	$L12
sw	$3,28($4)

$L41:
lw	$3,84($sp)
lw	$2,36($3)
beq	$2,$0,$L39
nop

jal	$2
move	$4,$3

j	$L42
move	$4,$fp

$L14:
j	$L12
li	$9,-5			# 0xfffffffffffffffb

$L29:
lw	$4,8($2)
lw	$2,4($2)
div	$0,$17,$4
teq	$4,$0,7
addiu	$5,$2,7
slt	$3,$2,0
movn	$2,$5,$3
sra	$2,$2,3
mflo	$4
div	$0,$4,$2
teq	$2,$0,7
j	$L31
mflo	$2

.set	macro
.set	reorder
.end	fourxm_read_packet
.globl	__fixsfsi
.section	.rodata.cst4,"aM",@progbits,4
.align	2
$LC0:
.word	1065353216
.section	.text.fourxm_read_header,"ax",@progbits
.align	2
.align	5
.ent	fourxm_read_header
.type	fourxm_read_header, @function
fourxm_read_header:
.frame	$sp,64,$31		# vars= 0, regs= 10/0, args= 24, gp= 0
.mask	0xc0ff0000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-64
sw	$31,60($sp)
sw	$20,40($sp)
sw	$19,36($sp)
sw	$18,32($sp)
sw	$16,24($sp)
sw	$fp,56($sp)
sw	$23,52($sp)
sw	$22,48($sp)
sw	$21,44($sp)
sw	$17,28($sp)
lui	$2,%hi($LC0)
lw	$17,12($4)
lw	$3,%lo($LC0)($2)
addiu	$19,$4,16
li	$6,12			# 0xc
move	$7,$0
sw	$3,40($17)
sw	$0,12($17)
sw	$0,16($17)
sw	$0,20($17)
li	$2,1			# 0x1
move	$20,$4
move	$4,$19
jal	url_fseek
sw	$2,16($sp)

jal	get_le32
move	$4,$19

move	$4,$19
jal	get_le32
move	$16,$2

move	$18,$2
li	$2,1414725632			# 0x54530000
ori	$2,$2,0x494c
beq	$16,$2,$L88
nop

$L87:
li	$4,-22			# 0xffffffffffffffea
$L53:
lw	$31,60($sp)
lw	$fp,56($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)
move	$2,$4
j	$31
addiu	$sp,$sp,64

$L88:
jal	get_le32
move	$4,$19

li	$3,1145110528			# 0x44410000
ori	$3,$3,0x4548
bne	$2,$3,$L53
li	$4,-22			# 0xffffffffffffffea

addiu	$16,$18,-4
jal	av_malloc
move	$4,$16

bne	$2,$0,$L89
move	$fp,$2

$L49:
j	$L53
li	$4,-12			# 0xfffffffffffffff4

$L89:
move	$4,$19
move	$5,$2
jal	get_buffer
move	$6,$16

bne	$16,$2,$L53
li	$4,-5			# 0xfffffffffffffffb

addiu	$23,$18,-12
blez	$23,$L54
move	$22,$0

j	$L92
addu	$18,$fp,$22

$L57:
sll	$2,$4,16
sll	$3,$3,24
or	$3,$3,$2
li	$8,1802633216			# 0x6b720000
or	$3,$3,$6
sll	$2,$7,8
ori	$4,$8,0x7476
beq	$5,$4,$L90
or	$3,$2,$3

ori	$2,$8,0x7473
beq	$5,$2,$L91
li	$2,40			# 0x28

$L59:
addiu	$22,$22,1
slt	$2,$22,$23
beq	$2,$0,$L54
addu	$18,$fp,$22

$L92:
lbu	$2,3($18)
lbu	$3,2($18)
lbu	$5,0($18)
sll	$3,$3,16
sll	$2,$2,24
lbu	$4,1($18)
or	$2,$2,$3
or	$2,$2,$5
sll	$4,$4,8
or	$5,$4,$2
li	$2,1600389120			# 0x5f640000
ori	$2,$2,0x7473
lbu	$3,7($18)
lbu	$4,6($18)
lbu	$7,5($18)
bne	$5,$2,$L57
lbu	$6,4($18)

lbu	$4,15($18)
lbu	$3,14($18)
lbu	$5,12($18)
sll	$3,$3,16
lbu	$2,13($18)
sll	$4,$4,24
or	$4,$4,$3
or	$4,$4,$5
sll	$2,$2,8
jal	av_int2flt
or	$4,$2,$4

j	$L59
sw	$2,40($17)

$L54:
jal	av_free
move	$4,$fp

jal	get_le32
move	$4,$19

move	$4,$19
jal	get_le32
move	$16,$2

li	$3,1414725632			# 0x54530000
ori	$3,$3,0x494c
bne	$16,$3,$L53
li	$4,-22			# 0xffffffffffffffea

jal	get_le32
move	$4,$19

li	$3,1230372864			# 0x49560000
ori	$3,$3,0x4f4d
bne	$2,$3,$L87
li	$2,-1			# 0xffffffffffffffff

li	$3,-1			# 0xffffffffffffffff
sw	$2,32($17)
sw	$3,36($17)
move	$2,$0
move	$3,$0
move	$4,$0
sw	$2,24($17)
j	$L53
sw	$3,28($17)

$L91:
bne	$3,$2,$L82
nop

lbu	$2,11($18)
lbu	$3,10($18)
lbu	$5,8($18)
sll	$3,$3,16
sll	$2,$2,24
lbu	$4,9($18)
or	$2,$2,$3
or	$2,$2,$5
sll	$4,$4,8
or	$16,$4,$2
lw	$3,12($17)
addiu	$5,$16,1
slt	$3,$3,$5
beq	$3,$0,$L68
li	$2,214695936			# 0xccc0000

ori	$2,$2,0xcccc
sltu	$2,$5,$2
beq	$2,$0,$L83
sw	$5,12($17)

sll	$2,$5,4
lw	$4,16($17)
sll	$5,$5,2
jal	av_realloc
addu	$5,$5,$2

beq	$2,$0,$L84
sw	$2,16($17)

$L68:
lbu	$3,15($18)
lbu	$2,14($18)
lbu	$4,13($18)
lbu	$6,12($18)
sll	$2,$2,16
sll	$3,$3,24
sll	$5,$16,2
or	$3,$3,$2
lw	$7,16($17)
sll	$2,$16,4
addu	$21,$5,$2
or	$3,$3,$6
sll	$4,$4,8
addu	$7,$21,$7
or	$4,$4,$3
sw	$4,16($7)
lbu	$2,39($18)
lbu	$4,38($18)
lbu	$5,36($18)
lbu	$3,37($18)
sll	$4,$4,16
sll	$2,$2,24
or	$2,$2,$4
or	$2,$2,$5
sll	$3,$3,8
or	$3,$3,$2
sw	$3,8($7)
lbu	$2,43($18)
lbu	$4,42($18)
lbu	$5,40($18)
lbu	$3,41($18)
sll	$4,$4,16
sll	$2,$2,24
or	$2,$2,$4
or	$2,$2,$5
sll	$3,$3,8
or	$3,$3,$2
sw	$3,0($7)
lbu	$2,47($18)
lbu	$4,46($18)
lbu	$5,44($18)
lbu	$3,45($18)
sll	$4,$4,16
sll	$2,$2,24
or	$2,$2,$4
or	$2,$2,$5
sll	$3,$3,8
or	$3,$3,$2
move	$5,$16
sw	$3,4($7)
jal	av_new_stream
move	$4,$20

move	$16,$2
beq	$2,$0,$L49
addiu	$22,$22,48

lw	$2,16($17)
move	$4,$16
addu	$2,$21,$2
lw	$7,0($2)
li	$5,60			# 0x3c
jal	av_set_pts_info
li	$6,1			# 0x1

lw	$4,16($17)
lw	$2,0($16)
lw	$8,8($16)
addu	$4,$21,$4
sw	$2,12($4)
sw	$0,232($8)
lw	$5,8($4)
li	$2,1			# 0x1
sw	$5,68($8)
lw	$6,0($4)
sw	$2,224($8)
mul	$3,$5,$6
sw	$6,64($8)
lw	$6,4($4)
mul	$3,$3,$6
mul	$5,$5,$6
sw	$3,4($8)
sw	$5,272($8)
sw	$6,392($8)
lw	$2,16($4)
beq	$2,$0,$L74
li	$3,65536			# 0x10000

li	$2,65536			# 0x10000
ori	$2,$2,0x1007
j	$L59
sw	$2,228($8)

$L82:
jal	av_free
move	$4,$fp

j	$L53
li	$4,-22			# 0xffffffffffffffea

$L74:
xori	$2,$6,0x8
ori	$3,$3,0x5
li	$4,65536			# 0x10000
movn	$3,$4,$2
j	$L59
sw	$3,228($8)

$L90:
li	$2,68			# 0x44
bne	$3,$2,$L82
nop

lbu	$2,39($18)
lbu	$4,38($18)
lbu	$5,36($18)
lbu	$3,37($18)
sll	$4,$4,16
sll	$2,$2,24
or	$2,$2,$4
or	$2,$2,$5
sll	$3,$3,8
or	$3,$3,$2
sw	$3,0($17)
lbu	$2,43($18)
lbu	$4,42($18)
lbu	$5,40($18)
lbu	$3,41($18)
sll	$4,$4,16
sll	$2,$2,24
or	$2,$2,$4
or	$2,$2,$5
sll	$3,$3,8
or	$3,$3,$2
sw	$3,4($17)
move	$4,$20
jal	av_new_stream
move	$5,$0

beq	$2,$0,$L49
move	$21,$2

lw	$4,40($17)
jal	__fixsfsi
addiu	$22,$22,76

move	$7,$2
li	$5,60			# 0x3c
move	$4,$21
jal	av_set_pts_info
li	$6,1			# 0x1

lw	$2,0($21)
lw	$16,8($21)
sw	$2,8($17)
li	$3,35			# 0x23
li	$2,4			# 0x4
sw	$3,228($16)
li	$4,4			# 0x4
sw	$2,28($16)
jal	av_malloc
sw	$0,224($16)

lw	$3,8($21)
sw	$2,24($16)
lbu	$2,16($18)
lw	$4,24($3)
sb	$2,0($4)
lw	$3,8($21)
lbu	$4,17($18)
lw	$2,24($3)
sb	$4,1($2)
lw	$3,8($21)
lbu	$4,18($18)
lw	$2,24($3)
sb	$4,2($2)
lw	$3,8($21)
lbu	$4,19($18)
lw	$2,24($3)
sb	$4,3($2)
lw	$5,8($21)
lw	$2,0($17)
sw	$2,40($5)
lw	$3,4($17)
j	$L59
sw	$3,44($5)

$L84:
jal	av_free
move	$4,$fp

j	$L53
li	$4,-12			# 0xfffffffffffffff4

$L83:
j	$L53
li	$4,-1			# 0xffffffffffffffff

.set	macro
.set	reorder
.end	fourxm_read_header
.globl	fourxm_demuxer
.section	.rodata.str1.4,"aMS",@progbits,1
.align	2
$LC1:
.ascii	"4xm\000"
.align	2
$LC2:
.ascii	"4X Technologies format\000"
.data
.align	2
.type	fourxm_demuxer, @object
.size	fourxm_demuxer, 64
fourxm_demuxer:
.word	$LC1
.word	$LC2
.word	48
.word	fourxm_probe
.word	fourxm_read_header
.word	fourxm_read_packet
.word	fourxm_read_close
.space	36
.ident	"GCC: (GNU) 4.1.2"