header.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 3,544 行 · 第 1/4 页

.file	1 "header.c"
.section .mdebug.abi32
.previous
.section	.text.mpeg2_reset_info,"ax",@progbits
.align	2
.align	5
.globl	mpeg2_reset_info
.ent	mpeg2_reset_info
.type	mpeg2_reset_info, @function
mpeg2_reset_info:
.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
.mask	0x00000000,0
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

sw	$0,16($4)
sw	$0,12($4)
sw	$0,8($4)
sw	$0,24($4)
sw	$0,20($4)
sw	$0,32($4)
j	$31
sw	$0,28($4)

.set	macro
.set	reorder
.end	mpeg2_reset_info
.section	.text.sequence_ext,"ax",@progbits
.align	2
.align	5
.ent	sequence_ext
.type	sequence_ext, @function
sequence_ext:
.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
.mask	0x00000000,0
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

lw	$8,17044($4)
move	$9,$4
lbu	$2,3($8)
andi	$2,$2,0x1
beq	$2,$0,$L4
addiu	$11,$8,3

lbu	$3,0($8)
lbu	$2,1($8)
sll	$3,$3,4
srl	$2,$2,4
addiu	$6,$4,17100
or	$3,$3,$2
sb	$3,56($6)
lbu	$2,1($8)
lbu	$3,2($8)
sll	$2,$2,13
sll	$3,$3,5
or	$2,$2,$3
lw	$4,28($6)
andi	$2,$2,0x3000
addu	$4,$4,$2
sw	$4,28($6)
sw	$4,36($6)
lbu	$2,2($8)
lw	$3,32($6)
sll	$2,$2,7
andi	$2,$2,0x3000
addu	$3,$3,$2
addiu	$5,$3,15
li	$2,-16			# 0xfffffffffffffff0
addiu	$4,$4,15
and	$5,$5,$2
and	$4,$4,$2
sw	$3,32($6)
sw	$3,40($6)
sw	$4,17100($9)
sw	$5,4($6)
lbu	$2,1($8)
lw	$3,24($6)
andi	$2,$2,0x8
ori	$7,$3,0x1
beq	$2,$0,$L16
addiu	$10,$8,2

lb	$2,5($8)
ori	$3,$7,0x8
slt	$2,$2,0
movn	$7,$3,$2
sw	$7,24($6)
sw	$4,8($6)
sw	$5,12($6)
lbu	$2,1($8)
andi	$3,$2,0x6
li	$2,2			# 0x2
beq	$3,$2,$L11
addiu	$7,$8,5

$L17:
li	$2,4			# 0x4
beq	$3,$2,$L12
nop

beq	$3,$0,$L19
li	$4,1			# 0x1

$L10:
lbu	$2,0($10)
lbu	$3,0($11)
sll	$2,$2,25
sll	$3,$3,17
lw	$4,16($6)
or	$2,$2,$3
li	$3,1073479680			# 0x3ffc0000
and	$2,$2,$3
addu	$4,$4,$2
sw	$4,16($6)
lbu	$2,4($8)
lw	$3,20($6)
sll	$2,$2,21
or	$3,$3,$2
sw	$3,20($6)
lbu	$2,0($7)
lw	$4,52($6)
andi	$3,$2,0x1f
addiu	$3,$3,1
mul	$3,$3,$4
srl	$2,$2,2
andi	$2,$2,0x3
addiu	$2,$2,1
divu	$0,$3,$2
teq	$2,$0,7
move	$4,$0
li	$2,4			# 0x4
mflo	$3
sw	$3,52($6)
sw	$2,17036($9)
j	$31
move	$2,$4

$L16:
addiu	$2,$5,31
li	$3,-32			# 0xffffffffffffffe0
and	$2,$2,$3
sw	$2,4($6)
li	$4,-5			# 0xfffffffffffffffb
move	$5,$2
lb	$2,5($8)
and	$7,$7,$4
ori	$3,$7,0x8
slt	$2,$2,0
lw	$4,17100($9)
movn	$7,$3,$2
sw	$7,24($6)
sw	$4,8($6)
sw	$5,12($6)
lbu	$2,1($8)
andi	$3,$2,0x6
li	$2,2			# 0x2
bne	$3,$2,$L17
addiu	$7,$8,5

j	$L18
srl	$2,$5,1

$L4:
li	$4,1			# 0x1
$L19:
j	$31
move	$2,$4

$L11:
srl	$2,$5,1
$L18:
sw	$2,12($6)
$L12:
lw	$2,8($6)
srl	$2,$2,1
j	$L10
sw	$2,8($6)

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

lw	$5,17044($4)
li	$7,1			# 0x1
lbu	$2,0($5)
andi	$2,$2,0x1
beq	$2,$0,$L21
addiu	$6,$4,17100

lbu	$2,1($5)
sb	$2,57($6)
lbu	$3,2($5)
addiu	$5,$5,3
sb	$3,58($6)
lbu	$2,0($5)
sb	$2,59($6)
$L21:
lbu	$4,2($5)
andi	$2,$4,0x2
beq	$2,$0,$L25
srl	$3,$4,2

lbu	$2,1($5)
sll	$2,$2,6
or	$2,$2,$3
bne	$2,$0,$L31
move	$7,$0

lbu	$2,4($5)
lbu	$3,3($5)
srl	$2,$2,3
andi	$4,$4,0x1
sll	$3,$3,5
or	$3,$3,$2
sll	$4,$4,13
or	$2,$4,$3
beq	$2,$0,$L25
nop

$L32:
sw	$2,40($6)
move	$7,$0
$L25:
j	$31
move	$2,$7

$L31:
sw	$2,36($6)
lbu	$4,2($5)
lbu	$2,4($5)
lbu	$3,3($5)
srl	$2,$2,3
andi	$4,$4,0x1
sll	$3,$3,5
or	$3,$3,$2
sll	$4,$4,13
or	$2,$4,$3
bne	$2,$0,$L32
nop

j	$L25
nop

.set	macro
.set	reorder
.end	sequence_display_ext
.section	.text.mpeg2_header_gop,"ax",@progbits
.align	2
.align	5
.globl	mpeg2_header_gop
.ent	mpeg2_header_gop
.type	mpeg2_header_gop, @function
mpeg2_header_gop:
.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
.mask	0x00000000,0
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

move	$6,$4
addiu	$5,$4,17220
lw	$4,17044($4)
lbu	$2,1($4)
andi	$2,$2,0x8
beq	$2,$0,$L36
li	$7,1			# 0x1

lbu	$3,0($4)
move	$7,$0
srl	$3,$3,2
andi	$3,$3,0x1f
sb	$3,17220($6)
lbu	$2,0($4)
lbu	$3,1($4)
sll	$2,$2,4
srl	$3,$3,4
or	$2,$2,$3
andi	$2,$2,0x3f
sb	$2,1($5)
lbu	$3,1($4)
lbu	$2,2($4)
sll	$3,$3,3
srl	$2,$2,5
or	$3,$3,$2
andi	$3,$3,0x3f
sb	$3,2($5)
lbu	$2,2($4)
lbu	$3,3($4)
sll	$2,$2,1
srl	$3,$3,7
or	$2,$2,$3
andi	$2,$2,0x3f
sb	$2,3($5)
lbu	$3,3($4)
lbu	$4,0($4)
srl	$3,$3,4
srl	$4,$4,7
andi	$3,$3,0x6
or	$4,$4,$3
li	$2,3			# 0x3
sw	$4,4($5)
sw	$2,17032($6)
$L36:
j	$31
move	$2,$7

.set	macro
.set	reorder
.end	mpeg2_header_gop
.section	.text.mpeg2_set_fbuf,"ax",@progbits
.align	2
.align	5
.globl	mpeg2_set_fbuf
.ent	mpeg2_set_fbuf
.type	mpeg2_set_fbuf, @function
mpeg2_set_fbuf:
.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
.mask	0x00000000,0
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

lw	$6,17464($4)
addiu	$3,$4,17472
beq	$6,$3,$L39
nop

lw	$2,17468($4)
bne	$3,$2,$L41
nop

$L39:
addiu	$3,$4,17488
beq	$6,$3,$L42
nop

lw	$2,17468($4)
bne	$3,$2,$L41
nop

$L42:
addiu	$3,$4,17504
beq	$6,$3,$L51
nop

lw	$2,17468($4)
bne	$3,$2,$L41
nop

$L51:
j	$31
nop

$L41:
sw	$3,17460($4)
bne	$5,$0,$L46
sw	$3,16992($4)

lw	$2,17184($4)
andi	$2,$2,0x8
beq	$2,$0,$L51
nop

lw	$2,17564($4)
beq	$2,$0,$L49
nop

$L46:
sw	$3,17008($4)
$L49:
lw	$2,17460($4)
j	$31
sw	$2,17004($4)

.set	macro
.set	reorder
.end	mpeg2_set_fbuf
.section	.text.mpeg2_header_picture,"ax",@progbits
.align	2
.align	5
.globl	mpeg2_header_picture
.ent	mpeg2_header_picture
.type	mpeg2_header_picture, @function
mpeg2_header_picture:
.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
.mask	0x00000000,0
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

lw	$8,17044($4)
li	$2,256			# 0x100
lbu	$5,1($8)
sw	$2,17036($4)
lbu	$6,0($8)
lbu	$3,1($8)
addiu	$9,$4,17236
srl	$5,$5,3
move	$7,$4
andi	$5,$5,0x7
lw	$4,16($9)
sll	$6,$6,2
srl	$3,$3,6
addiu	$2,$5,-2
or	$6,$6,$3
or	$4,$4,$5
sltu	$2,$2,2
sw	$4,16($9)
beq	$2,$0,$L53
sw	$6,17236($7)

lbu	$3,3($8)
srl	$3,$3,2
andi	$3,$3,0x1
sw	$3,172($7)
lbu	$2,3($8)
lbu	$3,4($8)
sll	$2,$2,1
srl	$3,$3,7
or	$2,$2,$3
andi	$2,$2,0x7
addiu	$2,$2,-1
sw	$2,168($7)
lbu	$3,4($8)
srl	$3,$3,6
andi	$3,$3,0x1
sw	$3,116($7)
lbu	$2,4($8)
srl	$2,$2,3
andi	$2,$2,0x7
addiu	$2,$2,-1
sw	$2,112($7)
$L53:
lui	$2,%hi(mpeg2_scan_norm)
addiu	$2,$2,%lo(mpeg2_scan_norm)
li	$3,2			# 0x2
sw	$2,16816($7)
li	$2,3			# 0x3
sw	$3,4($9)
li	$3,1			# 0x1
sw	$2,16796($7)
move	$2,$0
sw	$3,16800($7)
sw	$0,17596($7)
sb	$0,17600($7)
sw	$0,16792($7)
j	$31
sw	$0,16804($7)

.set	macro
.set	reorder
.end	mpeg2_header_picture
.section	.text.picture_coding_ext,"ax",@progbits
.align	2
.align	5
.ent	picture_coding_ext
.type	picture_coding_ext, @function
picture_coding_ext:
.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
.mask	0x00000000,0
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

lw	$6,17044($4)
move	$8,$4
lbu	$3,0($6)
addiu	$9,$4,17236
andi	$3,$3,0xf
addiu	$3,$3,-1
sw	$3,168($8)
lbu	$2,1($6)
li	$4,2			# 0x2
srl	$2,$2,4
addiu	$2,$2,-1
sw	$2,172($8)
lbu	$3,1($6)
andi	$3,$3,0xf
addiu	$3,$3,-1
sw	$3,112($8)
lbu	$2,2($6)
srl	$2,$2,4
addiu	$2,$2,-1
sw	$2,116($8)
lbu	$3,2($6)
lw	$10,16($9)
srl	$3,$3,2
andi	$3,$3,0x3
sw	$3,16792($8)
lbu	$2,2($6)
andi	$3,$2,0x3
beq	$3,$4,$L59
sw	$3,16796($8)

li	$2,3			# 0x3
beq	$3,$2,$L60
li	$2,1			# 0x1

beq	$3,$2,$L90
ori	$10,$10,0x8

j	$31
nop

$L59:
li	$2,1			# 0x1
$L90:
sw	$2,4($9)
lbu	$7,3($6)
addiu	$4,$6,3
$L62:
srl	$3,$7,7
$L91:
sw	$3,16812($8)
lbu	$2,0($4)
srl	$2,$2,6
andi	$2,$2,0x1
sw	$2,16800($8)
lbu	$3,0($4)
srl	$3,$3,5
andi	$3,$3,0x1
sw	$3,16804($8)
lbu	$2,0($4)
andi	$2,$2,0x10
sb	$2,17600($8)
lbu	$3,0($4)
srl	$3,$3,3
andi	$3,$3,0x1
sw	$3,16808($8)
lbu	$2,0($4)
andi	$2,$2,0x4
beq	$2,$0,$L79
lui	$2,%hi(mpeg2_scan_norm)

lui	$2,%hi(mpeg2_scan_alt)
addiu	$2,$2,%lo(mpeg2_scan_alt)
$L81:
sw	$2,16816($8)
lbu	$5,4($6)
li	$2,16			# 0x10
srl	$3,$5,7
movz	$2,$0,$3
andi	$4,$5,0x40
beq	$4,$0,$L85
or	$7,$2,$10

lbu	$3,5($6)
lbu	$4,6($6)
sll	$3,$3,18
sll	$2,$5,26
or	$2,$2,$3
sll	$4,$4,10
or	$2,$2,$4
li	$3,-4096			# 0xfffffffffffff000
and	$2,$2,$3
ori	$4,$7,0x20
or	$7,$2,$4
$L85:
li	$2,152			# 0x98
sw	$7,16($9)
sw	$2,17036($8)
j	$31
move	$2,$0

$L79:
j	$L81
addiu	$2,$2,%lo(mpeg2_scan_norm)

$L60:
lw	$2,17184($8)
andi	$2,$2,0x4
beq	$2,$0,$L89
li	$5,256			# 0x100

lbu	$3,3($6)
andi	$2,$3,0x2
bne	$2,$0,$L74
addiu	$4,$6,3

li	$5,2			# 0x2
sw	$5,4($9)
j	$L62
lbu	$7,0($4)

$L89:
lbu	$2,3($6)
andi	$2,$2,0x2
movz	$3,$4,$2
sw	$3,4($9)
lbu	$7,3($6)
li	$4,8			# 0x8
andi	$2,$7,0x2
movz	$5,$0,$2
srl	$3,$7,7
movz	$4,$0,$3
or	$5,$5,$10
or	$10,$4,$5
j	$L91
addiu	$4,$6,3

$L74:
srl	$3,$3,7
li	$5,6			# 0x6
li	$2,4			# 0x4
movz	$5,$2,$3
sw	$5,4($9)
j	$L62
lbu	$7,0($4)

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

addiu	$15,$4,17236
lw	$14,4($15)
lw	$2,17184($4)
sra	$3,$14,1
andi	$2,$2,0x4
movn	$14,$3,$2
move	$13,$4
blez	$14,$L95
lw	$2,17044($4)

move	$9,$2
move	$10,$15
move	$11,$0
j	$L97
li	$12,11			# 0xb

$L111:
sw	$6,20($10)
sw	$5,24($10)
sh	$6,17592($13)
sh	$5,17594($13)
beq	$14,$11,$L110
addiu	$10,$10,8

$L97:
lbu	$2,0($9)
lbu	$3,1($9)
lbu	$4,2($9)
lbu	$8,3($9)
sll	$3,$3,16
sll	$2,$2,24
or	$2,$2,$3
sll	$5,$4,24
sll	$6,$8,16
lbu	$3,4($9)
lbu	$7,5($9)
or	$5,$5,$6
or	$2,$2,$8
or	$5,$5,$7
sll	$4,$4,8
sll	$3,$3,8
or	$4,$4,$2
or	$3,$3,$5
addiu	$2,$12,-1
sra	$4,$4,$12
sra	$3,$3,$2
sra	$6,$4,1
sra	$5,$3,1
andi	$4,$4,0x1
sll	$6,$6,16
sll	$5,$5,16
and	$3,$3,$4
sra	$6,$6,16
sra	$5,$5,16
addiu	$11,$11,1
addiu	$9,$9,4
bne	$3,$0,$L111
addiu	$12,$12,-2

j	$31
li	$2,1			# 0x1

$L110:
slt	$2,$11,3
beq	$2,$0,$L103
nop

$L102:
sll	$2,$11,3
addu	$2,$2,$15
lh	$5,17594($13)
lh	$4,17592($13)
addiu	$3,$2,20
$L104:
addiu	$11,$11,1
slt	$2,$11,3
sw	$4,0($3)
sw	$5,4($3)
bne	$2,$0,$L104
addiu	$3,$3,8

$L103:
j	$31
move	$2,$0

$L95:
j	$L102
move	$11,$0

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

j	$31
move	$2,$0

.set	macro
.set	reorder
.end	copyright_ext
.section	.text.quant_matrix_ext,"ax",@progbits
.align	2
.align	5
.ent	quant_matrix_ext
.type	quant_matrix_ext, @function
quant_matrix_ext:
.frame	$sp,8,$31		# vars= 0, regs= 2/0, args= 0, gp= 0
.mask	0x00030000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-8
sw	$17,4($sp)
sw	$16,0($sp)
lui	$2,%hi(mpeg2_scan_norm+64)
lw	$12,17044($4)
move	$13,$4
addiu	$17,$2,%lo(mpeg2_scan_norm+64)
move	$11,$0
li	$15,8			# 0x8
li	$24,3			# 0x3
lui	$25,%hi(mpeg2_scan_norm)
li	$16,1			# 0x1
li	$14,4			# 0x4
move	$7,$4
$L115:
lbu	$2,0($12)
sra	$3,$15,$11
and	$2,$2,$3
beq	$2,$0,$L116
nop

addiu	$9,$11,5
subu	$8,$24,$11
move	$5,$12
addiu	$6,$25,%lo(mpeg2_scan_norm)
move	$10,$17
$L118:
lbu	$2,0($5)
lbu	$3,1($5)
lbu	$4,0($6)
sll	$2,$2,$9
sra	$3,$3,$8
or	$2,$2,$3
addu	$4,$7,$4
addiu	$6,$6,1
sb	$2,17861($4)
bne	$6,$10,$L118
addiu	$5,$5,1

lw	$2,17596($13)
sll	$3,$16,$11
or	$2,$2,$3
sw	$2,17596($13)
addiu	$12,$12,64
$L116:
addiu	$11,$11,1
bne	$11,$14,$L115
addiu	$7,$7,64

lw	$17,4($sp)
lw	$16,0($sp)
move	$2,$0
j	$31
addiu	$sp,$sp,8

.set	macro
.set	reorder
.end	quant_matrix_ext
.section	.text.mpeg2_header_extension,"ax",@progbits
.align	2
.align	5
.globl	mpeg2_header_extension
.ent	mpeg2_header_extension
.type	mpeg2_header_extension, @function
mpeg2_header_extension:
.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
.mask	0x00000000,0
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

lw	$2,17044($4)
lw	$5,17036($4)
lbu	$6,0($2)
lui	$2,%hi(parser.3968)
srl	$6,$6,4
sll	$3,$6,2
addiu	$2,$2,%lo(parser.3968)
addu	$8,$3,$2
li	$2,1			# 0x1
sll	$2,$2,$6
nor	$3,$0,$2
and	$3,$5,$3
and	$5,$5,$2
bne	$5,$0,$L132
move	$2,$0

j	$31
nop

$L132:
lw	$25,0($8)
jr	$25
sw	$3,17036($4)

.set	macro
.set	reorder
.end	mpeg2_header_extension
.section	.text.mpeg2_header_user_data,"ax",@progbits
.align	2
.align	5
.globl	mpeg2_header_user_data
.ent	mpeg2_header_user_data
.type	mpeg2_header_user_data, @function
mpeg2_header_user_data:
.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
.mask	0x00000000,0
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

lw	$3,17048($4)
lw	$2,17044($4)
lw	$5,17096($4)
subu	$2,$3,$2
addu	$2,$2,$5
addiu	$2,$2,-1
addiu	$3,$3,-1
sw	$2,17096($4)
move	$2,$0
j	$31
sw	$3,17044($4)

.set	macro
.set	reorder
.end	mpeg2_header_user_data