imdct.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 3,962 行 · 第 1/4 页

mul	$6,$4,$9
mul	$14,$3,$7
mul	$5,$7,$5
andi	$8,$8,0xffff
mtlo	$2
madd	$8,$4
addu	$3,$14,$10
mflo	$10
sll	$5,$5,2
sra	$2,$10,14
sll	$6,$6,2
sra	$3,$3,14
addu	$2,$2,$6
lw	$14,1048($sp)
addu	$3,$3,$5
addu	$3,$3,$2
sw	$3,1016($14)
lw	$3,1136($sp)
sw	$10,1128($sp)
lw	$15,512($3)
lw	$18,516($3)
andi	$5,$15,0xffff
sw	$5,1072($sp)
andi	$6,$18,0xffff
lw	$10,1072($sp)
lw	$2,4($fp)
sw	$6,1068($sp)
mul	$3,$17,$10
mul	$21,$22,$9
lw	$10,1068($sp)
lw	$22,1088($sp)
sra	$15,$15,16
sra	$6,$2,16
mul	$5,$12,$6
mul	$14,$16,$10
mul	$6,$4,$6
mul	$9,$7,$9
mul	$10,$17,$15
mul	$23,$17,$22
lw	$22,1084($sp)
andi	$2,$2,0xffff
mul	$25,$16,$22
mul	$22,$4,$2
mul	$2,$7,$8
addu	$4,$22,$5
mul	$5,$20,$15
sra	$18,$18,16
addu	$7,$2,$21
addu	$2,$5,$3
mul	$5,$19,$18
mul	$12,$16,$18
addu	$3,$5,$14
sra	$5,$2,14
mul	$2,$20,$11
mul	$8,$17,$11
addu	$11,$2,$23
mul	$2,$19,$13
mul	$14,$16,$13
sll	$6,$6,2
sll	$9,$9,2
sll	$10,$10,2
sll	$12,$12,2
sra	$4,$4,14
sra	$7,$7,14
sra	$3,$3,14
addu	$7,$7,$9
addu	$3,$3,$12
addu	$4,$4,$6
addu	$5,$5,$10
lw	$6,1044($sp)
subu	$4,$4,$7
addu	$5,$5,$3
sw	$4,4($6)
lw	$9,1040($sp)
addu	$13,$2,$25
sw	$5,4($fp)
lw	$10,1052($sp)
sll	$8,$8,2
sll	$14,$14,2
sra	$11,$11,14
sra	$13,$13,14
lw	$4,516($10)
addu	$13,$13,$14
lui	$3,%hi(a52_imdct_window+504)
addu	$11,$11,$8
addu	$11,$11,$13
addiu	$2,$3,%lo(a52_imdct_window+504)
sra	$8,$11,16
addu	$2,$9,$2
andi	$14,$4,0xffff
lw	$7,0($2)
lw	$3,504($24)
mul	$2,$8,$14
sra	$4,$4,16
andi	$10,$7,0xffff
sra	$5,$3,16
sra	$7,$7,16
andi	$3,$3,0xffff
mul	$9,$5,$10
mul	$6,$4,$8
mul	$12,$3,$7
mul	$5,$7,$5
andi	$11,$11,0xffff
mtlo	$2
madd	$11,$4
addu	$3,$12,$9
mflo	$9
sll	$5,$5,2
sra	$2,$9,14
sll	$6,$6,2
sra	$3,$3,14
addu	$2,$2,$6
lw	$12,1044($sp)
addu	$3,$3,$5
addu	$3,$3,$2
sw	$3,516($12)
sw	$9,1132($sp)
lw	$9,1072($sp)
lw	$2,504($24)
mul	$6,$16,$9
lw	$9,1068($sp)
sra	$3,$2,16
andi	$2,$2,0xffff
mul	$13,$10,$8
mul	$10,$17,$9
mul	$9,$4,$2
mul	$2,$7,$11
mul	$8,$7,$8
addu	$7,$2,$13
mul	$2,$19,$15
mul	$5,$14,$3
addu	$19,$2,$6
mul	$3,$4,$3
mul	$2,$20,$18
mul	$16,$16,$15
mul	$17,$17,$18
addu	$4,$9,$5
addu	$20,$2,$10
sll	$3,$3,2
sll	$8,$8,2
sra	$4,$4,14
sra	$7,$7,14
lw	$5,1048($sp)
addu	$4,$4,$3
addu	$7,$7,$8
lw	$3,1060($sp)
lw	$6,1064($sp)
lw	$8,1056($sp)
lw	$9,1136($sp)
lw	$10,1052($sp)
sra	$19,$19,14
sll	$16,$16,2
sra	$20,$20,14
sll	$17,$17,2
addu	$19,$19,$16
addu	$20,$20,$17
subu	$4,$4,$7
sw	$4,504($5)
subu	$19,$19,$20
addiu	$3,$3,8
addiu	$6,$6,8
addiu	$8,$8,8
addiu	$9,$9,-8
addiu	$10,$10,8
addiu	$5,$5,-8
addiu	$12,$12,8
li	$2,256			# 0x100
sw	$19,504($24)
sw	$3,1060($sp)
sw	$6,1064($sp)
sw	$8,1056($sp)
sw	$9,1136($sp)
sw	$10,1052($sp)
addiu	$fp,$fp,8
sw	$5,1048($sp)
sw	$12,1044($sp)
bne	$3,$2,$L21
addiu	$24,$24,-8

lw	$31,1180($sp)
lw	$fp,1176($sp)
lw	$23,1172($sp)
lw	$22,1168($sp)
lw	$21,1164($sp)
lw	$20,1160($sp)
lw	$19,1156($sp)
lw	$18,1152($sp)
lw	$17,1148($sp)
lw	$16,1144($sp)
j	$31
addiu	$sp,$sp,1184

.set	macro
.set	reorder
.end	a52_imdct_256
.globl	__floatsidf
.globl	__muldf3
.globl	__divdf3
.globl	__adddf3
.globl	__fixdfsi
.globl	__subdf3
.section	.rodata.cst8,"aM",@progbits,8
.align	3
$LC0:
.word	0
.word	1072693248
.align	3
$LC1:
.word	-80130773
.word	1064228782
.align	3
$LC2:
.word	0
.word	1104150528
.align	3
$LC3:
.word	1413754136
.word	1071194619
.align	3
$LC4:
.word	1413754136
.word	1070146043
.align	3
$LC5:
.word	1413754136
.word	1069097467
.align	3
$LC6:
.word	2134057426
.word	1070782844
.align	3
$LC7:
.word	693450846
.word	1071606394
.align	3
$LC8:
.word	2134057426
.word	1071831420
.align	3
$LC9:
.word	-373577867
.word	1072037307
.align	3
$LC10:
.word	1413754136
.word	1072243195
.align	3
$LC11:
.word	-1093881157
.word	1072449082
.align	3
$LC12:
.word	693450846
.word	1072654970
.align	3
$LC13:
.word	-907092224
.word	1072777052
.align	3
$LC14:
.word	2134057426
.word	1072879996
.align	3
$LC15:
.word	880239780
.word	1072982940
.align	3
$LC16:
.word	-373577867
.word	1073085883
.align	3
$LC17:
.word	-1627395514
.word	1073188827
.align	3
$LC18:
.word	1413754136
.word	1068048891
.align	3
$LC19:
.word	0
.word	1070596096
.align	3
$LC20:
.word	1413754136
.word	1065951739
.align	3
$LC21:
.word	0
.word	-1043333120
.align	3
$LC22:
.word	0
.word	1071644672
.align	3
$LC23:
.word	1413754136
.word	1067000315
.section	.text.a52_imdct_init,"ax",@progbits
.align	2
.align	5
.globl	a52_imdct_init
.ent	a52_imdct_init
.type	a52_imdct_init, @function
a52_imdct_init:
.frame	$sp,2112,$31		# vars= 2056, regs= 10/0, args= 16, gp= 0
.mask	0xc0ff0000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-2112
lui	$2,%hi($LC0)
sw	$23,2100($sp)
sw	$22,2096($sp)
lw	$23,%lo($LC0+4)($2)
lw	$22,%lo($LC0)($2)
sw	$fp,2104($sp)
sw	$19,2084($sp)
sw	$31,2108($sp)
sw	$21,2092($sp)
sw	$20,2088($sp)
sw	$18,2080($sp)
sw	$17,2076($sp)
sw	$16,2072($sp)
move	$19,$0
sw	$0,2064($sp)
sw	$0,2068($sp)
addiu	$fp,$sp,16
li	$2,256			# 0x100
$L75:
subu	$4,$2,$19
mul	$4,$19,$4
jal	__floatsidf
li	$18,100			# 0x64

lui	$4,%hi($LC0)
addiu	$4,$4,%lo($LC0)
move	$20,$2
move	$21,$3
lw	$2,0($4)
lw	$3,4($4)
move	$4,$2
$L74:
lui	$2,%hi($LC1)
addiu	$2,$2,%lo($LC1)
lw	$6,0($2)
lw	$7,4($2)
jal	__muldf3
move	$5,$3

move	$6,$2
move	$5,$21
move	$7,$3
jal	__muldf3
move	$4,$20

mul	$4,$18,$18
move	$16,$2
jal	__floatsidf
move	$17,$3

move	$6,$2
move	$4,$16
move	$5,$17
jal	__divdf3
move	$7,$3

addiu	$18,$18,-1
move	$4,$2
move	$5,$3
move	$6,$22
jal	__adddf3
move	$7,$23

bne	$18,$0,$L74
move	$4,$2

lw	$4,2064($sp)
lw	$5,2068($sp)
move	$6,$2
jal	__adddf3
move	$7,$3

sw	$2,0($fp)
sw	$2,2064($sp)
addiu	$19,$19,1
li	$2,256			# 0x100
sw	$3,4($fp)
sw	$3,2068($sp)
bne	$19,$2,$L75
addiu	$fp,$fp,8

lw	$4,2064($sp)
lw	$5,2068($sp)
move	$6,$22
jal	__adddf3
move	$7,$23

move	$6,$2
move	$4,$22
move	$5,$23
jal	__divdf3
move	$7,$3

move	$20,$2
lui	$2,%hi(a52_imdct_window)
move	$21,$3
addiu	$16,$sp,16
addiu	$18,$2,%lo(a52_imdct_window)
lui	$fp,%hi($LC2)
addiu	$19,$sp,2064
$L33:
lw	$6,0($16)
lw	$7,4($16)
move	$4,$20
jal	__muldf3
move	$5,$21

move	$4,$2
jal	sqrt
move	$5,$3

lw	$6,%lo($LC2)($fp)
lw	$7,%lo($LC2+4)($fp)
move	$4,$2
jal	__muldf3
move	$5,$3

move	$4,$2
jal	__fixdfsi
move	$5,$3

addiu	$16,$16,8
sw	$2,0($18)
bne	$16,$19,$L33
addiu	$18,$18,4

lui	$2,%hi(roots16)
addiu	$18,$2,%lo(roots16)
move	$16,$0
lui	$17,%hi($LC3)
li	$19,3			# 0x3
$L35:
addiu	$16,$16,1
jal	__floatsidf
move	$4,$16

lw	$6,%lo($LC3)($17)
lw	$7,%lo($LC3+4)($17)
move	$4,$2
jal	__muldf3
move	$5,$3

move	$4,$2
jal	cos
move	$5,$3

lw	$6,%lo($LC2)($fp)
lw	$7,%lo($LC2+4)($fp)
move	$4,$2
jal	__muldf3
move	$5,$3

move	$4,$2
jal	__fixdfsi
move	$5,$3

sw	$2,0($18)
bne	$16,$19,$L35
addiu	$18,$18,4

lui	$2,%hi($LC4)
lui	$3,%hi($LC2)
lw	$22,%lo($LC4)($2)
lw	$23,%lo($LC4+4)($2)
lw	$18,%lo($LC2)($3)
lui	$2,%hi(roots32)
lw	$19,%lo($LC2+4)($3)
addiu	$20,$2,%lo(roots32)
move	$16,$0
li	$21,7			# 0x7
$L37:
addiu	$16,$16,1
jal	__floatsidf
move	$4,$16

move	$4,$2
move	$6,$22
move	$7,$23
jal	__muldf3
move	$5,$3

move	$4,$2
jal	cos
move	$5,$3

move	$4,$2
move	$5,$3
move	$6,$18
jal	__muldf3
move	$7,$19

move	$4,$2
jal	__fixdfsi
move	$5,$3

sw	$2,0($20)
bne	$16,$21,$L37
addiu	$20,$20,4

lui	$2,%hi($LC5)
lw	$4,%lo($LC5)($2)
lw	$5,%lo($LC5+4)($2)
jal	cos
lui	$16,%hi(roots64)

move	$4,$2
move	$6,$18
move	$7,$19
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

move	$4,$22
move	$5,$23
jal	cos
sw	$2,%lo(roots64)($16)

move	$4,$2
move	$6,$18
move	$7,$19
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

lui	$3,%hi($LC6)
addiu	$16,$16,%lo(roots64)
lw	$4,%lo($LC6)($3)
lw	$5,%lo($LC6+4)($3)
jal	cos
sw	$2,4($16)

move	$4,$2
move	$6,$18
move	$7,$19
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

lw	$4,%lo($LC3)($17)
lw	$5,%lo($LC3+4)($17)
jal	cos
sw	$2,8($16)

move	$4,$2
move	$6,$18
move	$7,$19
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

lui	$3,%hi($LC7)
lw	$4,%lo($LC7)($3)
lw	$5,%lo($LC7+4)($3)
jal	cos
sw	$2,12($16)

move	$4,$2
move	$6,$18
move	$7,$19
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

lui	$3,%hi($LC8)
lw	$4,%lo($LC8)($3)
lw	$5,%lo($LC8+4)($3)
jal	cos
sw	$2,16($16)

move	$4,$2
move	$6,$18
move	$7,$19
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

lui	$3,%hi($LC9)
lw	$4,%lo($LC9)($3)
lw	$5,%lo($LC9+4)($3)
jal	cos
sw	$2,20($16)

move	$4,$2
move	$6,$18
move	$7,$19
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

lui	$3,%hi($LC10)
lw	$4,%lo($LC10)($3)
lw	$5,%lo($LC10+4)($3)
jal	cos
sw	$2,24($16)

move	$4,$2
move	$6,$18
move	$7,$19
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

lui	$3,%hi($LC11)
lw	$4,%lo($LC11)($3)
lw	$5,%lo($LC11+4)($3)
jal	cos
sw	$2,28($16)

move	$4,$2
move	$6,$18
move	$7,$19
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

lui	$3,%hi($LC12)
lw	$4,%lo($LC12)($3)
lw	$5,%lo($LC12+4)($3)
jal	cos
sw	$2,32($16)

move	$4,$2
move	$6,$18
move	$7,$19
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

lui	$3,%hi($LC13)
lw	$4,%lo($LC13)($3)
lw	$5,%lo($LC13+4)($3)
jal	cos
sw	$2,36($16)

move	$4,$2
move	$6,$18
move	$7,$19
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

lui	$3,%hi($LC14)
lw	$4,%lo($LC14)($3)
lw	$5,%lo($LC14+4)($3)
jal	cos
sw	$2,40($16)

move	$4,$2
move	$6,$18
move	$7,$19
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

lui	$3,%hi($LC15)
lw	$4,%lo($LC15)($3)
lw	$5,%lo($LC15+4)($3)
jal	cos
sw	$2,44($16)

move	$4,$2
move	$6,$18
move	$7,$19
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

lui	$3,%hi($LC16)
lw	$4,%lo($LC16)($3)
lw	$5,%lo($LC16+4)($3)
jal	cos
sw	$2,48($16)

move	$4,$2
move	$6,$18
move	$7,$19
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

lui	$3,%hi($LC17)
lw	$4,%lo($LC17)($3)
lw	$5,%lo($LC17+4)($3)
jal	cos
sw	$2,52($16)

move	$4,$2
move	$6,$18
move	$7,$19
jal	__muldf3
move	$5,$3

move	$4,$2
jal	__fixdfsi
move	$5,$3

sw	$2,56($16)
lui	$2,%hi(roots128)
addiu	$18,$2,%lo(roots128)
move	$16,$0
lui	$20,%hi($LC18)
li	$19,31			# 0x1f
$L39:
addiu	$16,$16,1
jal	__floatsidf
move	$4,$16

lw	$6,%lo($LC18)($20)
lw	$7,%lo($LC18+4)($20)
move	$4,$2
jal	__muldf3
move	$5,$3

move	$4,$2
jal	cos
move	$5,$3

lw	$6,%lo($LC2)($fp)
lw	$7,%lo($LC2+4)($fp)
move	$4,$2
jal	__muldf3
move	$5,$3

move	$4,$2
jal	__fixdfsi
move	$5,$3

sw	$2,0($18)
bne	$16,$19,$L39
addiu	$18,$18,4

lui	$2,%hi($LC2)
lw	$20,%lo($LC2)($2)
lw	$21,%lo($LC2+4)($2)
lui	$3,%hi(fftorder)
lui	$2,%hi(pre1)
addiu	$18,$2,%lo(pre1)
addiu	$19,$3,%lo(fftorder)
lui	$fp,%hi($LC20)
$L41:
lbu	$4,0($19)
addiu	$19,$19,1
srl	$4,$4,1
jal	__floatsidf
addiu	$4,$4,64

move	$4,$2
lui	$2,%hi($LC19)
lw	$6,%lo($LC19)($2)
lw	$7,%lo($LC19+4)($2)
jal	__subdf3
move	$5,$3

lw	$6,%lo($LC20)($fp)
lw	$7,%lo($LC20+4)($fp)
move	$4,$2
jal	__muldf3
move	$5,$3

move	$4,$2
move	$5,$3
move	$16,$2
jal	cos
move	$17,$3

move	$4,$2
move	$6,$20
move	$7,$21
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

sw	$2,0($18)
move	$4,$16
jal	sin
move	$5,$17

move	$4,$2
move	$5,$3
move	$6,$20
jal	__muldf3
move	$7,$21

move	$4,$2
jal	__fixdfsi
move	$5,$3

lui	$4,%hi(fftorder+64)
addiu	$3,$4,%lo(fftorder+64)
sw	$2,4($18)
bne	$19,$3,$L41
addiu	$18,$18,8

lui	$2,%hi($LC21)
lw	$20,%lo($LC21)($2)
lw	$21,%lo($LC21+4)($2)
lui	$2,%hi(pre1+512)
addiu	$18,$2,%lo(pre1+512)
lui	$22,%hi(fftorder+128)
$L43:
lbu	$4,0($19)
addiu	$19,$19,1
srl	$4,$4,1
jal	__floatsidf
addiu	$4,$4,64

move	$4,$2
lui	$2,%hi($LC19)
lw	$6,%lo($LC19)($2)
lw	$7,%lo($LC19+4)($2)
jal	__subdf3
move	$5,$3

lw	$6,%lo($LC20)($fp)
lw	$7,%lo($LC20+4)($fp)
move	$4,$2
jal	__muldf3
move	$5,$3

move	$4,$2
move	$5,$3
move	$16,$2
jal	cos
move	$17,$3

move	$4,$2
move	$6,$20
move	$7,$21
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

sw	$2,0($18)
move	$4,$16
jal	sin
move	$5,$17

move	$4,$2
move	$5,$3
move	$6,$20
jal	__muldf3
move	$7,$21

move	$5,$3
jal	__fixdfsi
move	$4,$2

addiu	$3,$22,%lo(fftorder+128)
sw	$2,4($18)
bne	$19,$3,$L43
addiu	$18,$18,8

lui	$2,%hi($LC2)
lui	$3,%hi(post1)
lw	$22,%lo($LC2)($2)
lw	$23,%lo($LC2+4)($2)
addiu	$19,$3,%lo(post1)
move	$18,$0
$L45:
jal	__floatsidf
move	$4,$18

move	$5,$3
lui	$3,%hi($LC22)
lw	$6,%lo($LC22)($3)
lw	$7,%lo($LC22+4)($3)
jal	__adddf3
move	$4,$2

lw	$6,%lo($LC20)($fp)
lw	$7,%lo($LC20+4)($fp)
move	$4,$2
jal	__muldf3
move	$5,$3

move	$4,$2
move	$5,$3
move	$16,$2
jal	cos
move	$17,$3

move	$4,$2
move	$6,$22
move	$7,$23
jal	__muldf3
move	$5,$3

move	$5,$3
jal	__fixdfsi
move	$4,$2

sw	$2,0($19)
move	$4,$16
jal	sin
move	$5,$17

move	$4,$2
move	$5,$3
move	$6,$22
jal	__muldf3
move	$7,$23

move	$4,$2
jal	__fixdfsi
move	$5,$3

sw	$2,4($19)
addiu	$18,$18,1
li	$2,64			# 0x40
bne	$18,$2,$L45
addiu	$19,$19,8

lui	$4,%hi(fftorder)
lui	$2,%hi(pre2)
addiu	$21,$4,%lo(fftorder)
addiu	$20,$2,%lo(pre2)
move	$18,$22
move	$19,$23
lui	$fp,%hi($LC23)
$L47:
lbu	$4,0($21)
addiu	$21,$21,1
jal	__floatsidf
srl	$4,$4,2

move	$4,$2
lui	$2,%hi($LC19)
lw	$6,%lo($LC19)($2)
lw	$7,%lo($LC19+4)($2)
jal	__subdf3
move	$5,$3