smacker.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 1,474 行 · 第 1/2 页

.file	1 "smacker.c"
.section .mdebug.abi32
.previous
.section	.text.smacker_probe,"ax",@progbits
.align	2
.align	5
.ent	smacker_probe
.type	smacker_probe, @function
smacker_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	$2,83			# 0x53
lbu	$3,0($4)
beq	$3,$2,$L11
nop

$L2:
move	$3,$0
$L8:
$L12:
j	$31
move	$2,$3

$L11:
lbu	$3,1($4)
li	$2,77			# 0x4d
bne	$3,$2,$L12
move	$3,$0

lbu	$3,2($4)
li	$2,75			# 0x4b
bne	$3,$2,$L12
move	$3,$0

lbu	$4,3($4)
li	$2,50			# 0x32
beq	$4,$2,$L8
li	$3,100			# 0x64

li	$2,52			# 0x34
bne	$4,$2,$L2
nop

j	$L8
nop

.set	macro
.set	reorder
.end	smacker_probe
.section	.text.smacker_read_close,"ax",@progbits
.align	2
.align	5
.ent	smacker_read_close
.type	smacker_read_close, @function
smacker_read_close:
.frame	$sp,24,$31		# vars= 0, regs= 2/0, args= 16, gp= 0
.mask	0x80010000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-24
sw	$31,20($sp)
sw	$16,16($sp)
lw	$16,12($4)
lw	$4,928($16)
beq	$4,$0,$L14
nop

jal	av_free
nop

$L14:
lw	$4,932($16)
beq	$4,$0,$L16
nop

jal	av_free
nop

$L16:
lw	$4,936($16)
beq	$4,$0,$L18
nop

jal	av_free
nop

$L18:
lw	$4,940($16)
beq	$4,$0,$L20
nop

jal	av_free
nop

$L20:
lw	$4,944($16)
beq	$4,$0,$L22
nop

jal	av_free
nop

$L22:
lw	$4,948($16)
beq	$4,$0,$L24
nop

jal	av_free
nop

$L24:
lw	$4,952($16)
beq	$4,$0,$L26
nop

jal	av_free
nop

$L26:
lw	$4,104($16)
beq	$4,$0,$L28
nop

jal	av_free
nop

$L28:
lw	$4,108($16)
beq	$4,$0,$L33
lw	$31,20($sp)

jal	av_free
nop

lw	$31,20($sp)
$L33:
lw	$16,16($sp)
move	$2,$0
j	$31
addiu	$sp,$sp,24

.set	macro
.set	reorder
.end	smacker_read_close
.section	.rodata.str1.4,"aMS",@progbits,1
.align	2
$LC0:
.ascii	"treesize too large\012\000"
.align	2
$LC1:
.ascii	"Too many frames: %i\012\000"
.align	2
$LC2:
.ascii	"Cannot allocate %i bytes of extradata\012\000"
.section	.text.smacker_read_header,"ax",@progbits
.align	2
.align	5
.ent	smacker_read_header
.type	smacker_read_header, @function
smacker_read_header:
.frame	$sp,80,$31		# vars= 8, regs= 10/0, args= 32, gp= 0
.mask	0xc0ff0000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-80
sw	$18,48($sp)
addiu	$18,$4,16
sw	$21,60($sp)
sw	$16,40($sp)
sw	$31,76($sp)
sw	$fp,72($sp)
sw	$23,68($sp)
sw	$22,64($sp)
sw	$20,56($sp)
sw	$19,52($sp)
sw	$17,44($sp)
move	$21,$4
move	$4,$18
jal	get_le32
lw	$17,12($21)

move	$3,$2
li	$2,843776000			# 0x324b0000
ori	$16,$2,0x4d53
bne	$3,$16,$L83
sw	$3,0($17)

$L35:
jal	get_le32
move	$4,$18

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

sw	$2,8($17)
jal	get_le32
move	$4,$18

sw	$2,12($17)
jal	get_le32
move	$4,$18

sw	$2,16($17)
jal	get_le32
move	$4,$18

andi	$3,$2,0x1
bne	$3,$0,$L84
sw	$2,20($17)

$L38:
jal	get_le32
move	$4,$18

sw	$2,24($17)
jal	get_le32
move	$4,$18

sw	$2,28($17)
jal	get_le32
move	$4,$18

sw	$2,32($17)
jal	get_le32
move	$4,$18

sw	$2,36($17)
jal	get_le32
move	$4,$18

sw	$2,40($17)
jal	get_le32
move	$4,$18

sw	$2,44($17)
jal	get_le32
move	$4,$18

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

li	$3,1073676288			# 0x3fff0000
ori	$3,$3,0xffff
sltu	$3,$2,$3
beq	$3,$0,$L85
sw	$2,52($17)

jal	get_le32
move	$4,$18

sw	$2,56($17)
jal	get_le32
move	$4,$18

sw	$2,60($17)
jal	get_le32
move	$4,$18

sw	$2,64($17)
jal	get_le32
move	$4,$18

sw	$2,68($17)
jal	get_le32
move	$4,$18

sw	$2,72($17)
jal	get_le32
move	$4,$18

sw	$2,76($17)
jal	get_le32
move	$4,$18

sw	$2,80($17)
jal	get_le32
move	$4,$18

sw	$2,84($17)
jal	get_le32
move	$4,$18

sw	$2,88($17)
jal	get_le32
move	$4,$18

sw	$2,92($17)
jal	get_le32
move	$4,$18

sw	$2,96($17)
jal	get_le32
move	$4,$18

lw	$7,12($17)
li	$3,16777216			# 0x1000000
sltu	$3,$7,$3
beq	$3,$0,$L86
sw	$2,100($17)

jal	av_malloc
sll	$4,$7,2

lw	$4,12($17)
jal	av_malloc
sw	$2,104($17)

lw	$3,0($17)
lw	$4,12($17)
subu	$3,$3,$16
sltu	$3,$0,$3
sw	$2,108($17)
beq	$4,$0,$L45
sw	$3,116($17)

move	$19,$0
move	$16,$0
$L47:
lw	$2,104($17)
sll	$16,$16,2
move	$4,$18
jal	get_le32
addu	$16,$16,$2

sw	$2,0($16)
lw	$3,12($17)
addiu	$16,$19,1
sltu	$2,$16,$3
bne	$2,$0,$L47
move	$19,$16

beq	$3,$0,$L45
move	$3,$0

move	$19,$0
$L50:
lw	$16,108($17)
move	$4,$18
jal	get_byte
addu	$16,$3,$16

sb	$2,0($16)
lw	$2,12($17)
addiu	$3,$19,1
sltu	$2,$3,$2
bne	$2,$0,$L50
move	$19,$3

$L45:
move	$4,$21
jal	av_new_stream
move	$5,$0

beq	$2,$0,$L37
move	$20,$2

lw	$4,8($2)
lw	$3,4($17)
lw	$2,0($2)
sw	$0,224($4)
sw	$2,924($17)
sw	$3,40($4)
lw	$2,8($17)
sw	$2,44($4)
lw	$3,0($17)
li	$2,14			# 0xe
sw	$3,232($4)
lw	$5,16($17)
li	$3,86			# 0x56
sw	$2,52($4)
bltz	$5,$L87
sw	$3,228($4)

sll	$2,$5,4
sll	$3,$5,2
addu	$3,$3,$2
sll	$4,$3,2
addu	$3,$3,$4
sw	$3,16($17)
move	$9,$3
$L54:
li	$2,65536			# 0x10000
ori	$2,$2,0x86a0
sw	$2,32($sp)
li	$6,65536			# 0x10000
li	$2,2147418112			# 0x7fff0000
move	$3,$0
sra	$8,$9,31
ori	$6,$6,0x86a0
move	$7,$0
addiu	$5,$17,16
addiu	$4,$sp,32
ori	$2,$2,0xffff
sw	$3,28($sp)
sw	$8,20($sp)
sw	$9,16($sp)
jal	av_reduce
sw	$2,24($sp)

lw	$6,16($17)
lw	$7,32($sp)
move	$4,$20
jal	av_set_pts_info
li	$5,33			# 0x21

li	$2,16711680			# 0xff0000
li	$3,1095434240			# 0x414b0000
ori	$22,$2,0xffff
ori	$fp,$3,0x4d53
move	$16,$17
move	$19,$0
j	$L55
li	$23,65536			# 0x10000

$L56:
addiu	$19,$19,1
li	$2,7			# 0x7
beq	$19,$2,$L88
addiu	$16,$16,4

$L55:
lw	$2,72($16)
li	$3,134217728			# 0x8000000
and	$6,$2,$3
li	$3,-1			# 0xffffffffffffffff
and	$2,$2,$22
beq	$2,$0,$L56
sw	$3,896($16)

move	$4,$21
bne	$6,$0,$L56
move	$5,$0

jal	av_new_stream
nop

lw	$8,8($2)
move	$5,$2
lw	$4,72($16)
lw	$2,0($2)
li	$3,1			# 0x1
ori	$9,$23,0x501a
sw	$2,896($16)
bltz	$4,$L61
sw	$3,224($8)

ori	$9,$23,0x5
$L61:
sw	$fp,232($8)
lw	$4,72($16)
li	$2,268435456			# 0x10000000
and	$4,$4,$2
li	$3,2			# 0x2
li	$2,1			# 0x1
movz	$3,$2,$4
sw	$3,68($8)
lw	$2,72($16)
li	$7,16			# 0x10
and	$2,$2,$22
sw	$2,64($8)
lw	$3,72($16)
li	$2,536870912			# 0x20000000
and	$3,$3,$2
li	$2,8			# 0x8
movn	$2,$7,$3
li	$10,65536			# 0x10000
move	$4,$5
li	$6,1			# 0x1
li	$5,64			# 0x40
ori	$3,$10,0x5
sw	$9,228($8)
beq	$2,$7,$L89
sw	$2,392($8)

$L68:
lw	$2,68($8)
lw	$7,64($8)
lw	$3,392($8)
mul	$7,$7,$2
addiu	$19,$19,1
mul	$7,$7,$3
addiu	$16,$16,4
slt	$2,$7,0
addiu	$8,$7,7
movn	$7,$8,$2
jal	av_set_pts_info
sra	$7,$7,3

li	$2,7			# 0x7
bne	$19,$2,$L55
nop

$L88:
lw	$4,52($17)
lw	$16,8($20)
jal	av_malloc
addiu	$4,$4,16

lw	$3,8($20)
sw	$2,24($16)
lw	$6,52($17)
lw	$5,24($3)
addiu	$2,$6,16
beq	$5,$0,$L90
sw	$2,28($3)

move	$4,$18
jal	get_buffer
addiu	$5,$5,16

lw	$4,8($20)
lw	$3,28($4)
addiu	$3,$3,-16
bne	$2,$3,$L91
nop

lw	$2,56($17)
lw	$5,24($4)
move	$4,$18
sw	$2,0($5)
lw	$3,60($17)
sw	$3,4($5)
lw	$2,64($17)
sw	$2,8($5)
lw	$3,68($17)
li	$2,-1			# 0xffffffffffffffff
sw	$3,12($5)
jal	url_ftell
sw	$2,1012($17)

sw	$2,1016($17)
sw	$3,1020($17)
move	$4,$0
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,$4
j	$31
addiu	$sp,$sp,80

$L84:
lw	$2,12($17)
addiu	$2,$2,1
j	$L38
sw	$2,12($17)

$L86:
lui	$6,%hi($LC1)
move	$4,$21
addiu	$6,$6,%lo($LC1)
jal	av_log
move	$5,$0

li	$4,-1			# 0xffffffffffffffff
$L42:
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,$4
j	$31
addiu	$sp,$sp,80

$L83:
li	$2,877330432			# 0x344b0000
ori	$2,$2,0x4d53
beq	$3,$2,$L35
nop

$L37:
li	$4,-1			# 0xffffffffffffffff
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,$4
j	$31
addiu	$sp,$sp,80

$L89:
bne	$9,$3,$L68
nop

j	$L68
sw	$10,228($8)

$L87:
subu	$2,$0,$5
move	$9,$2
j	$L54
sw	$2,16($17)

$L85:
lui	$6,%hi($LC0)
move	$4,$21
addiu	$6,$6,%lo($LC0)
jal	av_log
move	$5,$0

j	$L42
li	$4,-1			# 0xffffffffffffffff

$L91:
jal	av_free
lw	$4,104($17)

jal	av_free
lw	$4,108($17)

j	$L42
li	$4,-5			# 0xfffffffffffffffb

$L90:
lw	$7,52($17)
lui	$6,%hi($LC2)
addiu	$6,$6,%lo($LC2)
addiu	$7,$7,16
jal	av_log
move	$4,$21

jal	av_free
lw	$4,104($17)

jal	av_free
lw	$4,108($17)

j	$L42
li	$4,-1			# 0xffffffffffffffff

.set	macro
.set	reorder
.end	smacker_read_header
.section	.text.smacker_read_packet,"ax",@progbits
.align	2
.align	5
.ent	smacker_read_packet
.type	smacker_read_packet, @function
smacker_read_packet:
.frame	$sp,840,$31		# vars= 776, regs= 10/0, args= 24, gp= 0
.mask	0xc0ff0000,-4
.fmask	0x00000000,0
addiu	$sp,$sp,-840
sw	$19,812($sp)
addiu	$19,$4,16
sw	$22,824($sp)
move	$2,$4
sw	$31,836($sp)
sw	$fp,832($sp)
sw	$23,828($sp)
sw	$21,820($sp)
sw	$20,816($sp)
sw	$18,808($sp)
sw	$17,804($sp)
sw	$16,800($sp)
move	$4,$19
move	$22,$5
.set	noreorder
.set	nomacro
jal	url_feof
lw	$20,12($2)
.set	macro
.set	reorder

beq	$2,$0,$L160
$L93:
li	$12,-5			# 0xfffffffffffffffb
$L135:
lw	$31,836($sp)
lw	$fp,832($sp)
lw	$23,828($sp)
lw	$22,824($sp)
lw	$21,820($sp)
lw	$20,816($sp)
lw	$19,812($sp)
lw	$18,808($sp)
lw	$17,804($sp)
lw	$16,800($sp)
move	$2,$12
.set	noreorder
.set	nomacro
j	$31
addiu	$sp,$sp,840
.set	macro
.set	reorder

$L160:
lw	$2,112($20)
lw	$3,12($20)
sltu	$2,$2,$3
.set	noreorder
.set	nomacro
beq	$2,$0,$L135
li	$12,-5			# 0xfffffffffffffffb
.set	macro
.set	reorder

lw	$2,1012($20)
.set	noreorder
.set	nomacro
bgez	$2,$L96
move	$4,$19
.set	macro
.set	reorder

lw	$6,1016($20)
lw	$7,1020($20)
.set	noreorder