apc.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 271 行

.file	1 "apc.c"
.section .mdebug.abi32
.previous
.section	.text.apc_read_packet,"ax",@progbits
.align	2
.align	5
.ent	apc_read_packet
.type	apc_read_packet, @function
apc_read_packet:
.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
addiu	$4,$4,16
li	$6,4096			# 0x1000
sw	$16,16($sp)
sw	$31,20($sp)
jal	av_get_packet
move	$16,$5

blez	$2,$L4
li	$3,-5			# 0xfffffffffffffffb

sw	$0,24($16)
move	$3,$0
$L4:
lw	$31,20($sp)
lw	$16,16($sp)
move	$2,$3
j	$31
addiu	$sp,$sp,24

.set	macro
.set	reorder
.end	apc_read_packet
.section	.text.apc_read_header,"ax",@progbits
.align	2
.align	5
.ent	apc_read_header
.type	apc_read_header, @function
apc_read_header:
.frame	$sp,40,$31		# vars= 0, regs= 6/0, args= 16, gp= 0
.mask	0x801f0000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-40
sw	$18,24($sp)
addiu	$18,$4,16
sw	$16,16($sp)
move	$16,$4
move	$4,$18
sw	$31,36($sp)
sw	$20,32($sp)
sw	$19,28($sp)
jal	get_le32
sw	$17,20($sp)

jal	get_le32
move	$4,$18

jal	get_le32
move	$4,$18

move	$4,$16
jal	av_new_stream
move	$5,$0

li	$20,1			# 0x1
move	$19,$2
bne	$2,$0,$L16
move	$4,$18

$L8:
li	$5,-12			# 0xfffffffffffffff4
$L13:
lw	$31,36($sp)
lw	$20,32($sp)
lw	$19,28($sp)
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
move	$2,$5
j	$31
addiu	$sp,$sp,40

$L16:
lw	$3,8($2)
li	$2,65536			# 0x10000
ori	$2,$2,0x1004
sw	$2,228($3)
jal	get_le32
sw	$20,224($3)

move	$4,$18
jal	get_le32
lw	$16,8($19)

lw	$17,8($19)
sw	$2,64($16)
li	$2,8			# 0x8
li	$4,16			# 0x10
jal	av_malloc
sw	$2,28($17)

lw	$3,8($19)
sw	$2,24($17)
lw	$2,24($3)
move	$4,$18
li	$6,8			# 0x8
beq	$2,$0,$L8
move	$5,$2

jal	get_buffer
nop

lw	$3,8($19)
move	$4,$18
jal	get_le32
sw	$20,68($3)

beq	$2,$0,$L15
nop

lw	$6,8($19)
li	$2,2			# 0x2
sw	$2,68($6)
$L11:
lw	$4,64($6)
sll	$2,$2,2
mul	$2,$2,$4
li	$3,4			# 0x4
move	$5,$0
sw	$20,272($6)
sw	$3,392($6)
j	$L13
sw	$2,4($6)

$L15:
lw	$6,8($19)
j	$L11
lw	$2,68($6)

.set	macro
.set	reorder
.end	apc_read_header
.section	.rodata.str1.4,"aMS",@progbits,1
.align	2
$LC0:
.ascii	"CRYO_APC\000"
.section	.text.apc_probe,"ax",@progbits
.align	2
.align	5
.ent	apc_probe
.type	apc_probe, @function
apc_probe:
.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
.mask	0x80030000,-8
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-32
sw	$16,16($sp)
lui	$16,%hi($LC0)
sw	$17,20($sp)
sw	$31,24($sp)
move	$17,$4
jal	strlen
addiu	$4,$16,%lo($LC0)

move	$6,$2
sltu	$2,$2,8
beq	$2,$0,$L18
sltu	$2,$6,4

beq	$2,$0,$L20
lbu	$3,%lo($LC0)($16)

lw	$7,4($17)
lbu	$2,0($7)
addiu	$5,$16,%lo($LC0)
beq	$6,$0,$L34
subu	$2,$2,$3

bne	$2,$0,$L35
sltu	$3,$2,1

lbu	$2,1($7)
lbu	$3,1($5)
sltu	$4,$6,2
bne	$4,$0,$L34
subu	$2,$2,$3

bne	$2,$0,$L35
sltu	$3,$2,1

lbu	$2,2($7)
lbu	$3,2($5)
li	$4,2			# 0x2
beq	$6,$4,$L34
subu	$2,$2,$3

bne	$2,$0,$L35
sltu	$3,$2,1

lbu	$3,3($7)
lbu	$2,3($5)
j	$L34
subu	$2,$3,$2

$L20:
lw	$4,4($17)
jal	strcmp
addiu	$5,$16,%lo($LC0)

$L34:
sltu	$3,$2,1
$L35:
lw	$31,24($sp)
li	$2,100			# 0x64
lw	$17,20($sp)
lw	$16,16($sp)
movz	$2,$0,$3
j	$31
addiu	$sp,$sp,32

$L18:
lw	$4,4($17)
addiu	$5,$16,%lo($LC0)
jal	strncmp
li	$6,8			# 0x8

sltu	$3,$2,1
lw	$31,24($sp)
li	$2,100			# 0x64
lw	$17,20($sp)
lw	$16,16($sp)
movz	$2,$0,$3
j	$31
addiu	$sp,$sp,32

.set	macro
.set	reorder
.end	apc_probe
.globl	apc_demuxer
.section	.rodata.str1.4
.align	2
$LC1:
.ascii	"apc\000"
.align	2
$LC2:
.ascii	"CRYO APC format\000"
.data
.align	2
.type	apc_demuxer, @object
.size	apc_demuxer, 64
apc_demuxer:
.word	$LC1
.word	$LC2
.word	0
.word	apc_probe
.word	apc_read_header
.word	apc_read_packet
.space	40
.ident	"GCC: (GNU) 4.1.2"