c93.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 483 行

.file	1 "c93.c"
.section .mdebug.abi32
.previous
.section	.text.probe,"ax",@progbits
.align	2
.align	5
.ent	probe
.type	probe, @function
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	$2,1			# 0x1
lbu	$3,0($4)
beq	$3,$2,$L11
move	$6,$0

$L8:
j	$31
move	$2,$6

$L11:
lbu	$2,1($4)
bne	$2,$0,$L8
nop

lbu	$2,2($4)
lbu	$3,4($4)
addiu	$2,$2,1
bne	$3,$2,$L8
nop

lbu	$2,6($4)
lbu	$5,8($4)
addu	$2,$3,$2
bne	$5,$2,$L8
nop

lbu	$2,10($4)
lbu	$3,12($4)
addu	$2,$5,$2
bne	$3,$2,$L8
nop

j	$L8
li	$6,100			# 0x64

.set	macro
.set	reorder
.end	probe
.section	.rodata.str1.4,"aMS",@progbits,1
.align	2
$LC0:
.ascii	"invalid palette size %u\012\000"
.section	.text.read_packet,"ax",@progbits
.align	2
.align	5
.ent	read_packet
.type	read_packet, @function
read_packet:
.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	$22,48($sp)
sw	$21,44($sp)
sw	$19,36($sp)
sw	$31,52($sp)
sw	$20,40($sp)
sw	$18,32($sp)
sw	$17,28($sp)
sw	$16,24($sp)
lw	$18,12($4)
move	$22,$4
lw	$2,2188($18)
move	$21,$5
addiu	$19,$4,16
bne	$2,$0,$L46
lw	$16,2052($18)

$L13:
sll	$2,$16,2
$L51:
addu	$4,$18,$2
addiu	$20,$4,4
lw	$3,2184($18)
lbu	$2,3($20)
slt	$2,$3,$2
beq	$2,$0,$L47
nop

beq	$3,$0,$L27
nop

$L28:
sll	$2,$3,2
lhu	$6,0($20)
addu	$2,$2,$18
lw	$3,2056($2)
sll	$6,$6,11
addu	$6,$6,$3
move	$7,$0
move	$4,$19
jal	url_fseek
sw	$0,16($sp)

jal	get_le16
move	$4,$19

addiu	$5,$2,769
move	$4,$21
jal	av_new_packet
move	$16,$2

bltz	$2,$L20
move	$17,$2

lw	$2,16($21)
addiu	$3,$16,1
sb	$0,0($2)
lw	$5,16($21)
sw	$3,20($21)
addiu	$5,$5,1
move	$4,$19
jal	get_buffer
move	$6,$16

slt	$2,$2,$16
beq	$2,$0,$L48
li	$17,-5			# 0xfffffffffffffffb

$L31:
$L37:
lw	$2,36($21)
beq	$2,$0,$L20
nop

jal	$2
move	$4,$21

$L20:
move	$2,$17
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

$L47:
lw	$3,2052($18)
slt	$2,$3,511
beq	$2,$0,$L20
li	$17,-5			# 0xfffffffffffffffb

addiu	$20,$4,8
lbu	$2,2($20)
beq	$2,$0,$L20
addiu	$2,$3,1

sw	$2,2052($18)
sw	$0,2184($18)
$L27:
lhu	$2,0($20)
move	$4,$19
sll	$2,$2,11
move	$6,$2
move	$7,$0
sw	$0,16($sp)
jal	url_fseek
move	$16,$0

li	$17,128			# 0x80
$L29:
jal	get_le32
move	$4,$19

addu	$3,$18,$16
addiu	$16,$16,4
bne	$16,$17,$L29
sw	$2,2056($3)

j	$L28
lw	$3,2184($18)

$L46:
lw	$2,2184($18)
sw	$0,2188($18)
addiu	$3,$2,1
sw	$3,2184($18)
jal	get_le16
move	$4,$19

move	$17,$2
slt	$2,$2,43
bne	$2,$0,$L51
sll	$2,$16,2

lw	$2,2192($18)
beq	$2,$0,$L49
move	$4,$22

$L16:
li	$6,26			# 0x1a
move	$7,$0
jal	url_fskip
move	$4,$19

lw	$6,2192($18)
addiu	$7,$17,-26
move	$4,$22
jal	voc_get_packet
move	$5,$21

blez	$2,$L13
move	$17,$2

lw	$2,28($21)
li	$3,1			# 0x1
ori	$2,$2,0x1
sw	$2,28($21)
sw	$3,24($21)
move	$2,$17
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

$L48:
jal	get_le16
move	$4,$19

beq	$2,$0,$L33
move	$7,$2

li	$2,768			# 0x300
beq	$7,$2,$L35
lui	$6,%hi($LC0)

move	$4,$22
addiu	$6,$6,%lo($LC0)
jal	av_log
move	$5,$0

j	$L37
li	$17,-22			# 0xffffffffffffffea

$L35:
lw	$5,16($21)
move	$4,$19
lbu	$2,0($5)
li	$6,768			# 0x300
ori	$2,$2,0x1
sb	$2,0($5)
lw	$3,16($21)
lw	$5,20($21)
jal	get_buffer
addu	$5,$3,$5

slt	$2,$2,768
bne	$2,$0,$L37
li	$17,-5			# 0xfffffffffffffffb

lw	$2,20($21)
addiu	$2,$2,768
sw	$2,20($21)
$L33:
sw	$0,24($21)
lw	$3,2052($18)
li	$2,1			# 0x1
bne	$3,$0,$L39
sw	$2,2188($18)

lw	$2,2184($18)
bne	$2,$0,$L39
nop

lw	$2,28($21)
lw	$4,16($21)
ori	$2,$2,0x1
sw	$2,28($21)
lbu	$3,0($4)
move	$17,$0
ori	$3,$3,0x2
j	$L20
sb	$3,0($4)

$L39:
j	$L20
move	$17,$0

$L49:
jal	av_new_stream
li	$5,1			# 0x1

beq	$2,$0,$L50
sw	$2,2192($18)

lw	$3,8($2)
li	$2,1			# 0x1
j	$L16
sw	$2,224($3)

$L50:
j	$L20
li	$17,-12			# 0xfffffffffffffff4

.set	macro
.set	reorder
.end	read_packet
.section	.rodata.str1.4
.align	2
$LC1:
.ascii	"too many frames in block\012\000"
.section	.text.read_header,"ax",@progbits
.align	2
.align	5
.ent	read_header
.type	read_header, @function
read_header:
.frame	$sp,48,$31		# vars= 0, regs= 8/0, args= 16, gp= 0
.mask	0x807f0000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-48
sw	$21,36($sp)
sw	$20,32($sp)
sw	$19,28($sp)
sw	$18,24($sp)
sw	$17,20($sp)
sw	$16,16($sp)
sw	$31,44($sp)
sw	$22,40($sp)
lw	$22,12($4)
move	$21,$4
addiu	$17,$4,16
addiu	$16,$22,4
move	$18,$0
move	$19,$0
j	$L53
li	$20,512			# 0x200

$L65:
beq	$18,$20,$L64
move	$4,$21

$L53:
jal	get_le16
move	$4,$17

sh	$2,0($16)
jal	get_byte
move	$4,$17

sb	$2,2($16)
jal	get_byte
move	$4,$17

andi	$2,$2,0x00ff
sltu	$3,$2,33
sb	$2,3($16)
addiu	$18,$18,1
addu	$19,$19,$2
bne	$3,$0,$L65
addiu	$16,$16,4

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

li	$2,-22			# 0xffffffffffffffea
$L56:
lw	$31,44($sp)
lw	$22,40($sp)
lw	$21,36($sp)
lw	$20,32($sp)
lw	$19,28($sp)
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
j	$31
addiu	$sp,$sp,48

$L64:
lw	$2,3816($21)
ori	$2,$2,0x1
sw	$2,3816($21)
jal	av_new_stream
move	$5,$0

beq	$2,$0,$L66
move	$7,$2

lw	$6,8($2)
li	$4,5			# 0x5
sw	$4,400($6)
li	$5,320			# 0x140
li	$4,192			# 0xc0
sw	$5,40($6)
sw	$4,44($6)
li	$5,6			# 0x6
li	$4,2			# 0x2
sw	$5,404($6)
sw	$4,64($7)
li	$5,25			# 0x19
li	$4,106			# 0x6a
sw	$5,68($7)
sw	$4,228($6)
sra	$3,$19,31
move	$4,$0
move	$5,$0
sw	$19,96($7)
sw	$3,100($7)
sw	$4,88($7)
sw	$5,92($7)
sw	$0,2188($22)
sw	$0,224($6)
sw	$19,160($7)
sw	$3,164($7)
sw	$0,2052($22)
sw	$0,2184($22)
lw	$31,44($sp)
lw	$22,40($sp)
lw	$21,36($sp)
lw	$20,32($sp)
lw	$19,28($sp)
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
move	$2,$0
j	$31
addiu	$sp,$sp,48

$L66:
j	$L56
li	$2,-12			# 0xfffffffffffffff4

.set	macro
.set	reorder
.end	read_header
.globl	c93_demuxer
.section	.rodata.str1.4
.align	2
$LC2:
.ascii	"c93\000"
.align	2
$LC3:
.ascii	"Interplay C93\000"
.data
.align	2
.type	c93_demuxer, @object
.size	c93_demuxer, 64
c93_demuxer:
.word	$LC2
.word	$LC3
.word	2196
.word	probe
.word	read_header
.word	read_packet
.space	40
.ident	"GCC: (GNU) 4.1.2"