drc.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 542 行

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

lbu	$3,1($4)
li	$2,1			# 0x1
move	$12,$4
beq	$3,$2,$L31
move	$10,$5

$L2:
beq	$3,$0,$L34
lui	$2,%hi(drc_pow2_table)

addiu	$15,$2,%lo(drc_pow2_table)
li	$3,715784192			# 0x2aaa0000
ori	$13,$3,0xaaab
move	$11,$0
move	$6,$0
move	$25,$15
$L6:
addu	$8,$12,$11
lbu	$2,4($8)
lbu	$3,22($8)
sll	$2,$2,2
beq	$3,$0,$L7
addiu	$9,$2,4

lbu	$3,39($8)
lbu	$2,21($12)
li	$4,80			# 0x50
addu	$3,$3,$2
subu	$4,$4,$3
mult	$4,$13
sra	$3,$4,31
mfhi	$2
sra	$2,$2,2
subu	$8,$2,$3
sll	$5,$8,3
sll	$2,$8,5
subu	$2,$2,$5
bltz	$8,$L32
subu	$3,$4,$2

$L10:
sltu	$2,$6,$9
beq	$2,$0,$L13
nop

bne	$3,$0,$L19
sll	$2,$3,2

$L21:
sll	$3,$6,2
addu	$3,$3,$10
addiu	$4,$6,1
lw	$2,0($3)
andi	$6,$4,0xffff
sll	$2,$2,$8
sltu	$4,$6,$9
bne	$4,$0,$L21
sw	$2,0($3)

$L13:
addiu	$3,$11,1
$L33:
lbu	$2,1($12)
andi	$11,$3,0xffff
sltu	$2,$11,$2
bne	$2,$0,$L6
move	$6,$9

$L34:
j	$31
nop

$L7:
lbu	$3,39($8)
lbu	$2,21($12)
addu	$3,$3,$2
addiu	$3,$3,-80
mult	$3,$13
sra	$4,$3,31
mfhi	$2
sra	$2,$2,2
subu	$8,$2,$4
sll	$5,$8,3
sll	$2,$8,5
subu	$2,$2,$5
bgez	$8,$L10
subu	$3,$3,$2

$L32:
sltu	$2,$6,$9
beq	$2,$0,$L13
nop

bne	$3,$0,$L15
subu	$8,$0,$8

move	$5,$6
$L17:
sll	$3,$5,2
addu	$3,$10,$3
addiu	$4,$5,1
lw	$2,0($3)
andi	$5,$4,0xffff
sra	$2,$2,$8
sltu	$4,$5,$9
bne	$4,$0,$L17
sw	$2,0($3)

addiu	$3,$11,1
lbu	$2,1($12)
andi	$11,$3,0xffff
sltu	$2,$11,$2
bne	$2,$0,$L6
move	$6,$9

j	$L34
nop

$L31:
li	$2,-1
j	$L2
sb	$2,4($4)

$L15:
sll	$2,$3,2
addu	$2,$2,$25
lw	$24,92($2)
move	$14,$6
$L18:
sll	$7,$14,2
addu	$7,$10,$7
lw	$4,0($7)
addiu	$6,$14,1
sra	$4,$4,$8
mult	$4,$24
andi	$14,$6,0xffff
mflo	$4
mfhi	$5
addiu	$2,$4,8192
sltu	$6,$2,$4
addu	$3,$6,$5
sll	$4,$3,18
srl	$2,$2,14
or	$2,$4,$2
sltu	$5,$14,$9
bne	$5,$0,$L18
sw	$2,0($7)

j	$L33
addiu	$3,$11,1

$L19:
addu	$2,$2,$15
lw	$24,92($2)
move	$14,$6
$L22:
sll	$7,$14,2
addu	$7,$7,$10
lw	$4,0($7)
addiu	$6,$14,1
sll	$4,$4,$8
mult	$4,$24
andi	$14,$6,0xffff
mflo	$4
mfhi	$5
addiu	$2,$4,8192
sltu	$6,$2,$4
addu	$3,$6,$5
sll	$4,$3,18
srl	$2,$2,14
or	$2,$4,$2
sltu	$5,$14,$9
bne	$5,$0,$L22
sw	$2,0($7)

j	$L33
addiu	$3,$11,1

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

beq	$4,$0,$L39
nop

j	faad_free
nop

$L39:
j	$31
nop

.set	macro
.set	reorder
.end	drc_end
.section	.text.drc_init,"ax",@progbits
.align	2
.align	5
.globl	drc_init
.ent	drc_init
.type	drc_init, @function
drc_init:
.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
.mask	0x80030000,-8
.fmask	0x00000000,0
addiu	$sp,$sp,-32
sw	$16,16($sp)
move	$16,$4
li	$4,192			# 0xc0
sw	$17,20($sp)
sw	$31,24($sp)
.set	noreorder
.set	nomacro
jal	faad_malloc
move	$17,$5
.set	macro
.set	reorder

move	$6,$2
li	$3,4			# 0x4
andi	$2,$2,0x3
subu	$3,$3,$2
li	$2,2			# 0x2
addiu	$7,$6,192
.set	noreorder
.set	nomacro
beq	$3,$2,$L43
move	$4,$6
.set	macro
.set	reorder

li	$2,3			# 0x3
.set	noreorder
.set	nomacro
beq	$3,$2,$L44
li	$2,1			# 0x1
.set	macro
.set	reorder

beq	$3,$2,$L63
$L41:
addiu	$5,$4,-4
move	$2,$0
#APP
.word	0b01110000000000100000000001101111	#S32I2M XR1,$2
#NO_APP
andi	$3,$4,0x1f
.set	noreorder
.set	nomacro
beq	$3,$0,$L65
addiu	$2,$7,-31
.set	macro
.set	reorder

li	$2,-32			# 0xffffffffffffffe0
and	$2,$5,$2
addiu	$4,$2,32
sltu	$3,$5,$4
.set	noreorder
.set	nomacro
beq	$3,$0,$L65
addiu	$2,$7,-31
.set	macro
.set	reorder

$L57:
#APP
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
#NO_APP
sltu	$2,$5,$4
.set	noreorder
.set	nomacro
bne	$2,$0,$L57
addiu	$2,$7,-31
.set	macro
.set	reorder

$L65:
li	$3,-32			# 0xffffffffffffffe0
and	$3,$2,$3
sltu	$4,$5,$3
.set	noreorder
.set	nomacro
beq	$4,$0,$L66
addiu	$2,$7,-4
.set	macro
.set	reorder

addiu	$2,$5,4
$L67:
#APP
pref 30,0($2)
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
#NO_APP
sltu	$2,$5,$3
.set	noreorder
.set	nomacro
bne	$2,$0,$L67
addiu	$2,$5,4
.set	macro
.set	reorder

addiu	$2,$7,-4
$L66:
li	$3,-4			# 0xfffffffffffffffc
and	$3,$2,$3
sltu	$4,$5,$3
beq	$4,$0,$L50
$L59:
#APP
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
#NO_APP
sltu	$2,$5,$3
bne	$2,$0,$L59
$L50:
andi	$3,$7,0x3
li	$2,2			# 0x2
.set	noreorder
.set	nomacro
beq	$3,$2,$L54
addiu	$4,$5,4
.set	macro
.set	reorder

li	$2,3			# 0x3
.set	noreorder
.set	nomacro
beq	$3,$2,$L55
li	$2,1			# 0x1
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
beq	$3,$2,$L64
li	$3,1
.set	macro
.set	reorder

li	$2,-1
sb	$2,4($6)
sw	$16,184($6)
sw	$17,188($6)
sb	$3,22($6)
sb	$3,1($6)
sb	$0,39($6)
lw	$31,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
move	$2,$6
.set	noreorder
.set	nomacro
j	$31
addiu	$sp,$sp,32
.set	macro
.set	reorder

$L54:
li	$3,1
li	$2,-1
sb	$0,4($5)
sb	$0,1($4)
sb	$2,4($6)
sw	$16,184($6)
sw	$17,188($6)
sb	$3,22($6)
sb	$3,1($6)
sb	$0,39($6)
lw	$31,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
move	$2,$6
.set	noreorder
.set	nomacro
j	$31
addiu	$sp,$sp,32
.set	macro
.set	reorder

$L43:
addiu	$4,$6,2
sb	$0,0($6)
.set	noreorder
.set	nomacro
j	$L41
sb	$0,1($6)
.set	macro
.set	reorder

$L55:
li	$3,1
li	$2,-1
sb	$0,6($5)
sb	$0,4($5)
sb	$0,5($5)
sb	$2,4($6)
sw	$16,184($6)
sw	$17,188($6)
sb	$3,22($6)
sb	$3,1($6)
sb	$0,39($6)
lw	$31,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
move	$2,$6
.set	noreorder
.set	nomacro
j	$31
addiu	$sp,$sp,32
.set	macro
.set	reorder

$L44:
addiu	$4,$6,3
sb	$0,0($6)
sb	$0,1($6)
.set	noreorder
.set	nomacro
j	$L41
sb	$0,2($6)
.set	macro
.set	reorder

$L64:
li	$2,-1
sb	$0,4($5)
sb	$2,4($6)
sw	$16,184($6)
sw	$17,188($6)
sb	$3,22($6)
sb	$3,1($6)
sb	$0,39($6)
lw	$31,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
move	$2,$6
.set	noreorder
.set	nomacro
j	$31
addiu	$sp,$sp,32
.set	macro
.set	reorder

$L63:
addiu	$4,$6,1
.set	noreorder
.set	nomacro
j	$L41
sb	$0,0($6)
.set	macro
.set	reorder

.end	drc_init
.rdata
.align	2
.type	drc_pow2_table, @object
.size	drc_pow2_table, 188
drc_pow2_table:
.word	138150608
.word	142198729
.word	146365470
.word	150654306
.word	155068814
.word	159612677
.word	164289686
.word	169103741
.word	174058859
.word	179159172
.word	184408937
.word	189812531
.word	195374463
.word	201099372
.word	206992033
.word	213057363
.word	219300420
.word	225726413
.word	232340701
.word	239148804
.word	246156398
.word	253369332
.word	260793620
.word	268435456
.word	276301215
.word	284397459
.word	292730940
.word	301308612
.word	310137628
.word	319225354
.word	328579371
.word	338207482
.word	348117717
.word	358318345
.word	368817874
.word	379625063
.word	390748926
.word	402198743
.word	413984066
.word	426114725
.word	438600840
.word	451452825
.word	464681403
.word	478297607
.word	492312797
.word	506738663
.word	521587239
.ident	"GCC: (GNU) 4.1.2"