sgidec.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 570 行

.file	1 "sgidec.c"
.section .mdebug.abi32
.previous
.section	.text.sgi_end,"ax",@progbits
.align	2
.align	5
.ent	sgi_end
.type	sgi_end, @function
sgi_end:
.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	$5,136($4)
lw	$2,0($5)
beq	$2,$0,$L6
lw	$31,16($sp)

lw	$2,264($4)
jal	$2
nop

lw	$31,16($sp)
$L6:
move	$2,$0
j	$31
addiu	$sp,$sp,24

.set	macro
.set	reorder
.end	sgi_end
.section	.text.sgi_init,"ax",@progbits
.align	2
.align	5
.ent	sgi_init
.type	sgi_init, @function
sgi_init:
.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	$31,24($sp)
sw	$17,20($sp)
sw	$16,16($sp)
lw	$16,136($4)
move	$17,$4
jal	avcodec_get_frame_defaults
move	$4,$16

sw	$16,408($17)
lw	$31,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
move	$2,$0
j	$31
addiu	$sp,$sp,32

.set	macro
.set	reorder
.end	sgi_init
.section	.rodata.str1.4,"aMS",@progbits,1
.align	2
$LC0:
.ascii	"buf_size too small (%d)\012\000"
.align	2
$LC1:
.ascii	"bad magic number\012\000"
.align	2
$LC2:
.ascii	"wrong channel number\012\000"
.align	2
$LC3:
.ascii	"wrong dimension number\012\000"
.align	2
$LC4:
.ascii	"wrong picture format\012\000"
.align	2
$LC5:
.ascii	"get_buffer() failed.\012\000"
.section	.text.decode_frame,"ax",@progbits
.align	2
.align	5
.ent	decode_frame
.type	decode_frame, @function
decode_frame:
.frame	$sp,56,$31		# vars= 0, regs= 9/0, args= 16, gp= 0
.mask	0x80ff0000,-8
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-56
sw	$20,32($sp)
lw	$20,72($sp)
sw	$23,44($sp)
sw	$22,40($sp)
sw	$19,28($sp)
sw	$17,20($sp)
sw	$31,48($sp)
sw	$21,36($sp)
sw	$18,24($sp)
sw	$16,16($sp)
slt	$2,$20,512
move	$19,$4
move	$22,$5
move	$23,$6
move	$17,$7
bne	$2,$0,$L88
lw	$16,136($4)

addiu	$3,$7,2
lbu	$2,-2($3)
lbu	$5,-1($3)
sll	$2,$2,8
or	$2,$2,$5
li	$3,474			# 0x1da
bne	$2,$3,$L89
addiu	$3,$7,8

lbu	$2,-2($3)
lbu	$5,-1($3)
sll	$2,$2,8
or	$10,$2,$5
addiu	$3,$7,6
lbu	$9,-1($3)
lbu	$21,2($7)
lbu	$6,3($7)
lbu	$7,-2($3)
sw	$10,200($16)
addiu	$3,$17,10
lbu	$2,-2($3)
lbu	$5,-1($3)
sll	$2,$2,8
or	$5,$2,$5
sw	$5,204($16)
addiu	$18,$17,12
lbu	$2,-2($18)
lbu	$3,-1($18)
sll	$2,$2,8
or	$8,$2,$3
li	$2,1			# 0x1
bne	$6,$2,$L90
sw	$8,208($16)

sll	$2,$7,8
or	$2,$2,$9
addiu	$2,$2,-2
sltu	$2,$2,2
beq	$2,$0,$L91
nop

beq	$8,$6,$L92
li	$2,3			# 0x3

beq	$8,$2,$L93
li	$2,4			# 0x4

bne	$8,$2,$L24
li	$2,22			# 0x16

sw	$2,52($4)
$L21:
lw	$5,200($16)
lw	$6,204($16)
jal	avcodec_check_dimensions
move	$4,$19

beq	$2,$0,$L94
nop

$L26:
li	$20,-1			# 0xffffffffffffffff
$L12:
move	$2,$20
lw	$31,48($sp)
lw	$23,44($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,56

$L94:
lw	$5,200($16)
lw	$6,204($16)
jal	avcodec_set_dimensions
move	$4,$19

lw	$2,0($16)
beq	$2,$0,$L28
move	$4,$19

lw	$2,264($19)
jal	$2
move	$5,$16

$L28:
lw	$2,260($19)
sw	$0,80($16)
move	$4,$19
jal	$2
move	$5,$16

bltz	$2,$L95
li	$2,1			# 0x1

lw	$3,16($16)
lw	$5,204($16)
lw	$13,0($16)
mul	$4,$3,$5
addu	$25,$4,$13
sw	$2,48($16)
sw	$3,212($16)
addu	$7,$17,$20
sw	$2,52($16)
beq	$21,$0,$L32
addiu	$12,$18,500

lw	$8,208($16)
sll	$2,$5,3
mul	$2,$8,$2
subu	$3,$7,$12
sltu	$2,$3,$2
bne	$2,$0,$L26
nop

beq	$8,$0,$L35
addiu	$21,$18,-12

move	$13,$12
move	$24,$0
$L37:
beq	$5,$0,$L58
subu	$19,$7,$21

addiu	$13,$13,4
lbu	$2,-4($13)
lbu	$3,-3($13)
lbu	$5,-1($13)
sll	$2,$2,24
sll	$3,$3,16
lbu	$4,-2($13)
or	$2,$2,$3
or	$2,$2,$5
sll	$4,$4,8
or	$4,$4,$2
sltu	$2,$19,$4
bne	$2,$0,$L26
lw	$5,212($16)

subu	$15,$25,$5
move	$17,$0
addu	$4,$21,$4
addu	$18,$24,$15
bltz	$5,$L96
move	$2,$5

$L41:
addu	$12,$2,$15
move	$10,$18
li	$14,255			# 0xff
$L87:
addiu	$4,$4,1
sltu	$2,$7,$4
bne	$2,$0,$L47
li	$3,-1			# 0xffffffffffffffff

$L99:
lbu	$5,-1($4)
andi	$3,$5,0x7f
beq	$3,$0,$L97
subu	$2,$10,$18

mul	$6,$8,$3
addu	$2,$6,$10
sltu	$2,$2,$12
beq	$2,$0,$L43
sll	$2,$5,24

sra	$2,$2,24
bltz	$2,$L98
addiu	$2,$3,-1

addiu	$4,$4,1
andi	$9,$2,0x00ff
beq	$9,$14,$L87
lbu	$5,-1($4)

move	$3,$10
move	$2,$9
li	$6,255			# 0xff
$L55:
addiu	$2,$2,-1
andi	$2,$2,0x00ff
sb	$5,0($3)
bne	$2,$6,$L55
addu	$3,$3,$8

mul	$3,$9,$8
addu	$2,$10,$8
addiu	$4,$4,1
addu	$10,$3,$2
sltu	$2,$7,$4
beq	$2,$0,$L99
nop

$L43:
li	$3,-1			# 0xffffffffffffffff
$L47:
lw	$2,200($16)
bne	$3,$2,$L26
addiu	$17,$17,1

lw	$5,204($16)
sltu	$2,$17,$5
beq	$2,$0,$L100
nop

addiu	$13,$13,4
lbu	$2,-4($13)
lbu	$3,-3($13)
lbu	$5,-1($13)
sll	$3,$3,16
sll	$2,$2,24
lbu	$4,-2($13)
or	$2,$2,$3
or	$2,$2,$5
sll	$4,$4,8
or	$4,$4,$2
sltu	$3,$19,$4
bne	$3,$0,$L26
lw	$5,212($16)

subu	$15,$15,$5
lw	$8,208($16)
addu	$4,$21,$4
addu	$18,$24,$15
bgez	$5,$L41
move	$2,$5

$L96:
j	$L41
subu	$2,$0,$5

$L93:
li	$2,2			# 0x2
j	$L21
sw	$2,52($4)

$L98:
andi	$11,$2,0x00ff
beq	$11,$14,$L87
move	$6,$10

move	$2,$11
move	$5,$4
li	$9,255			# 0xff
$L52:
addiu	$5,$5,1
addiu	$2,$2,-1
lbu	$3,-1($5)
andi	$2,$2,0x00ff
sb	$3,0($6)
bne	$2,$9,$L52
addu	$6,$6,$8

addu	$3,$11,$4
mul	$4,$11,$8
addu	$2,$10,$8
addu	$10,$4,$2
j	$L87
addiu	$4,$3,1

$L97:
div	$0,$2,$8
teq	$8,$0,7
j	$L47
mflo	$3

$L32:
lw	$10,200($16)
lw	$8,208($16)
mul	$9,$5,$10
subu	$3,$7,$12
mul	$2,$9,$8
sltu	$2,$3,$2
bne	$2,$0,$L26
addiu	$11,$5,-1

bltz	$11,$L101
move	$6,$16

$L84:
lw	$2,212($16)
blez	$10,$L63
move	$6,$10

mul	$3,$2,$11
addu	$4,$3,$13
move	$3,$12
$L65:
beq	$8,$0,$L66
addiu	$7,$3,1

move	$5,$0
$L68:
lbu	$2,0($3)
addiu	$5,$5,1
sb	$2,0($4)
lw	$8,208($16)
addiu	$4,$4,1
sltu	$2,$5,$8
bne	$2,$0,$L68
addu	$3,$3,$9

$L66:
addiu	$6,$6,-1
bne	$6,$0,$L65
move	$3,$7

addu	$12,$12,$10
$L63:
addiu	$11,$11,-1
bltz	$11,$L101
move	$6,$16

j	$L84
lw	$10,200($16)

$L100:
lw	$8,208($16)
$L58:
addiu	$24,$24,1
sltu	$2,$24,$8
bne	$2,$0,$L37
nop

$L35:
move	$6,$16
$L101:
move	$7,$22
addiu	$8,$16,192
$L71:
lw	$2,0($6)
lw	$3,4($6)
lw	$4,8($6)
lw	$5,12($6)
addiu	$6,$6,16
sw	$2,0($7)
sw	$3,4($7)
sw	$4,8($7)
sw	$5,12($7)
bne	$6,$8,$L71
addiu	$7,$7,16

lw	$2,4($6)
lw	$3,0($6)
sw	$2,4($7)
li	$2,32			# 0x20
sw	$3,0($7)
sw	$2,0($23)
lw	$31,48($sp)
move	$2,$20
lw	$23,44($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,56

$L91:
lui	$6,%hi($LC3)
addiu	$6,$6,%lo($LC3)
jal	av_log
move	$5,$0

j	$L12
li	$20,-1			# 0xffffffffffffffff

$L89:
lui	$6,%hi($LC1)
addiu	$6,$6,%lo($LC1)
jal	av_log
move	$5,$0

j	$L12
li	$20,-1			# 0xffffffffffffffff

$L90:
lui	$6,%hi($LC2)
addiu	$6,$6,%lo($LC2)
jal	av_log
move	$5,$0

j	$L12
li	$20,-1			# 0xffffffffffffffff

$L24:
lui	$6,%hi($LC4)
addiu	$6,$6,%lo($LC4)
jal	av_log
move	$5,$0

j	$L12
li	$20,-1			# 0xffffffffffffffff

$L88:
lui	$6,%hi($LC0)
move	$7,$20
addiu	$6,$6,%lo($LC0)
jal	av_log
move	$5,$0

j	$L12
li	$20,-1			# 0xffffffffffffffff

$L92:
li	$2,11			# 0xb
j	$L21
sw	$2,52($4)

$L95:
lui	$6,%hi($LC5)
move	$4,$19
addiu	$6,$6,%lo($LC5)
jal	av_log
move	$5,$0

j	$L12
li	$20,-1			# 0xffffffffffffffff

.set	macro
.set	reorder
.end	decode_frame
.globl	sgi_decoder
.section	.rodata.str1.4
.align	2
$LC6:
.ascii	"sgi\000"
.data
.align	2
.type	sgi_decoder, @object
.size	sgi_decoder, 52
sgi_decoder:
.word	$LC6
.word	0
.word	105
.word	216
.word	sgi_init
.word	0
.word	sgi_end
.word	decode_frame
.space	20
.ident	"GCC: (GNU) 4.1.2"