smacker.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 1,474 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