ad_imaadpcm.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 1,047 行

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

move	$8,$4
lw	$4,12($4)
li	$2,8192			# 0x2000
li	$3,17			# 0x11
beq	$4,$3,$L2
sw	$2,64($8)

li	$2,97			# 0x61
beq	$4,$2,$L2
nop

li	$2,285212672			# 0x11000000
ori	$2,$2,0x736d
beq	$4,$2,$L2
li	$3,64			# 0x40

lw	$7,4($8)
lw	$4,156($8)
sw	$3,88($7)
lbu	$2,3($4)
lbu	$3,2($4)
sll	$2,$2,8
or	$2,$2,$3
sll	$4,$2,5
sll	$2,$2,1
addu	$2,$2,$4
sw	$2,84($7)
move	$3,$2
li	$2,1			# 0x1
j	$31
sw	$3,48($8)

$L2:
lw	$3,156($8)
lw	$7,4($8)
lbu	$2,3($3)
lbu	$4,13($3)
lbu	$5,2($3)
lbu	$6,12($3)
sll	$2,$2,8
or	$2,$2,$5
sll	$4,$4,8
or	$4,$4,$6
sll	$2,$2,2
subu	$2,$4,$2
sll	$2,$2,1
sw	$2,88($7)
move	$3,$4
li	$2,1			# 0x1
sw	$4,84($7)
j	$31
sw	$3,48($8)

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

lw	$5,156($4)
lw	$8,4($4)
lbu	$2,3($5)
lbu	$3,2($5)
sll	$2,$2,8
or	$2,$2,$3
sw	$2,36($4)
lwl	$3,7($5)
li	$2,1			# 0x1
lwr	$3,4($5)
li	$5,2			# 0x2
sw	$3,28($4)
lw	$6,84($8)
lw	$7,88($8)
mul	$3,$3,$6
sw	$5,32($4)
divu	$0,$3,$7
teq	$7,$0,7
mflo	$3
j	$31
sw	$3,44($4)

.set	macro
.set	reorder
.end	init
.section	.text.uninit,"ax",@progbits
.align	2
.align	5
.ent	uninit
.type	uninit, @function
uninit:
.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
nop

.set	macro
.set	reorder
.end	uninit
.section	.text.control,"ax",@progbits
.align	2
.align	5
.ent	control
.type	control, @function
control:
.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
li	$2,2			# 0x2
sw	$31,16($sp)
li	$6,-1			# 0xffffffffffffffff
sw	$7,36($sp)
beq	$5,$2,$L18
move	$3,$4

lw	$31,16($sp)
move	$2,$6
j	$31
addiu	$sp,$sp,24

$L18:
lw	$4,4($4)
lw	$5,52($3)
jal	demux_read_data
lw	$6,84($4)

li	$6,1			# 0x1
lw	$31,16($sp)
move	$2,$6
j	$31
addiu	$sp,$sp,24

.set	macro
.set	reorder
.end	control
.section	.text.decode_audio,"ax",@progbits
.align	2
.align	5
.ent	decode_audio
.type	decode_audio, @function
decode_audio:
.frame	$sp,56,$31		# vars= 24, regs= 3/0, args= 16, gp= 0
.mask	0x80030000,-8
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-56
sw	$17,44($sp)
sw	$16,40($sp)
sw	$31,48($sp)
move	$16,$4
lw	$4,4($4)
move	$17,$5
lw	$6,84($4)
jal	demux_read_data
lw	$5,52($16)

move	$6,$2
lw	$2,4($16)
lw	$3,84($2)
beq	$6,$3,$L20
lw	$31,48($sp)

lw	$17,44($sp)
lw	$16,40($sp)
li	$2,-1			# 0xffffffffffffffff
j	$31
addiu	$sp,$sp,56

$L20:
lw	$3,12($16)
li	$2,17			# 0x11
beq	$3,$2,$L23
li	$2,285212672			# 0x11000000

ori	$2,$2,0x736d
beq	$3,$2,$L23
li	$2,97			# 0x61

beq	$3,$2,$L144
nop

lw	$7,52($16)
lw	$5,156($16)
lhu	$2,0($7)
lbu	$3,3($5)
sll	$4,$2,8
srl	$2,$2,8
or	$2,$2,$4
andi	$6,$2,0xffff
lbu	$4,2($5)
sll	$3,$3,8
andi	$2,$6,0x8000
or	$9,$3,$4
beq	$2,$0,$L100
andi	$10,$6,0xff80

li	$2,-65536			# 0xffffffffffff0000
addu	$10,$10,$2
$L100:
andi	$2,$6,0x7f
slt	$3,$2,89
li	$6,88			# 0x58
movz	$2,$6,$3
slt	$4,$9,2
bne	$4,$0,$L145
move	$12,$2

lhu	$2,34($7)
sll	$3,$2,8
srl	$2,$2,8
or	$2,$2,$3
andi	$4,$2,0xffff
andi	$3,$4,0x8000
beq	$3,$0,$L105
andi	$5,$4,0xff80

li	$2,-65536			# 0xffffffffffff0000
addu	$5,$5,$2
$L105:
li	$2,32768			# 0x8000
slt	$2,$5,$2
li	$3,32767			# 0x7fff
movn	$3,$5,$2
li	$11,-32768			# 0xffffffffffff8000
slt	$2,$3,-32768
andi	$8,$4,0x7f
bltz	$8,$L146
movz	$11,$3,$2

slt	$2,$8,89
movz	$8,$6,$2
$L104:
li	$2,1			# 0x1
beq	$9,$2,$L147
move	$4,$7

move	$5,$17
addiu	$6,$7,32
$L114:
lbu	$2,2($4)
andi	$2,$2,0xf
sh	$2,0($5)
lbu	$3,36($4)
andi	$3,$3,0xf
sh	$3,2($5)
lbu	$2,2($4)
srl	$2,$2,4
sh	$2,4($5)
lbu	$3,36($4)
addiu	$4,$4,1
srl	$3,$3,4
sh	$3,6($5)
bne	$6,$4,$L114
addiu	$5,$5,8

lui	$24,%hi(adpcm_step)
$L165:
addiu	$2,$24,%lo(adpcm_step)
sll	$3,$12,2
sll	$4,$8,2
addu	$4,$4,$2
addu	$3,$3,$2
sll	$13,$9,6
lw	$5,0($3)
blez	$13,$L115
lw	$6,0($4)

li	$2,32768			# 0x8000
slt	$2,$10,$2
li	$3,32767			# 0x7fff
movn	$3,$10,$2
li	$4,-32768			# 0xffffffffffff8000
slt	$2,$3,-32768
movz	$4,$3,$2
sw	$5,16($sp)
sw	$11,28($sp)
sw	$12,32($sp)
addiu	$15,$9,-1
move	$5,$17
move	$11,$0
move	$12,$0
addiu	$14,$sp,16
lui	$16,%hi(adpcm_index)
sw	$6,20($sp)
sw	$4,24($sp)
j	$L117
sw	$8,36($sp)

$L149:
lw	$2,8($9)
subu	$2,$2,$6
sw	$2,8($9)
lw	$3,8($4)
slt	$2,$3,-32768
beq	$2,$0,$L166
li	$2,32768			# 0x8000

li	$2,-32768			# 0xffffffffffff8000
$L169:
sw	$2,8($4)
addu	$6,$10,$14
$L170:
lw	$2,16($6)
lw	$4,8($6)
sll	$2,$2,2
addiu	$3,$24,%lo(adpcm_step)
addu	$2,$2,$3
addiu	$11,$11,1
sh	$4,0($5)
lw	$2,0($2)
beq	$13,$11,$L115
addiu	$5,$5,2

$L151:
xor	$12,$12,$15
sw	$2,0($6)
$L117:
lhu	$8,0($5)
addiu	$3,$16,%lo(adpcm_index)
sll	$10,$12,2
sll	$2,$8,2
addu	$2,$2,$3
addu	$6,$10,$14
lw	$3,16($6)
lw	$4,0($2)
addu	$2,$3,$4
bltz	$2,$L148
sw	$2,16($6)

slt	$2,$2,89
bne	$2,$0,$L167
addu	$9,$10,$14

li	$2,88			# 0x58
sw	$2,16($6)
$L120:
addu	$9,$10,$14
$L167:
lw	$7,0($9)
andi	$2,$8,0x4
sra	$6,$7,3
addu	$3,$6,$7
andi	$4,$8,0x2
beq	$4,$0,$L124
movn	$6,$3,$2

sra	$2,$7,1
addu	$6,$6,$2
$L124:
andi	$2,$8,0x1
beq	$2,$0,$L168
andi	$2,$8,0x8

sra	$2,$7,2
addu	$6,$6,$2
andi	$2,$8,0x8
$L168:
bne	$2,$0,$L149
addu	$4,$10,$14

lw	$2,8($9)
addu	$2,$6,$2
sw	$2,8($9)
lw	$3,8($4)
slt	$2,$3,-32768
bne	$2,$0,$L169
li	$2,-32768			# 0xffffffffffff8000

li	$2,32768			# 0x8000
$L166:
slt	$2,$3,$2
bne	$2,$0,$L170
addu	$6,$10,$14

li	$2,32767			# 0x7fff
sw	$2,8($4)
lw	$2,16($6)
lw	$4,8($6)
sll	$2,$2,2
addiu	$3,$24,%lo(adpcm_step)
addu	$2,$2,$3
addiu	$11,$11,1
sh	$4,0($5)
lw	$2,0($2)
bne	$13,$11,$L151
addiu	$5,$5,2

$L115:
lw	$31,48($sp)
lw	$17,44($sp)
lw	$16,40($sp)
sll	$2,$13,1
j	$31
addiu	$sp,$sp,56

$L23:
lw	$3,156($16)
lw	$5,52($16)
lbu	$2,3($3)
lhu	$16,0($5)
lbu	$4,2($3)
sll	$2,$2,8
andi	$3,$16,0x8000
bne	$3,$0,$L152
or	$15,$2,$4

li	$2,2			# 0x2
beq	$15,$2,$L153
lbu	$25,2($5)

$L28:
li	$2,1			# 0x1
beq	$15,$2,$L35
move	$12,$0

move	$14,$0
$L32:
sll	$2,$15,2
subu	$10,$6,$2
blez	$10,$L34
move	$24,$0

move	$7,$0
move	$6,$0
li	$13,1			# 0x1
addu	$8,$5,$10
li	$9,4			# 0x4
j	$L41
li	$11,8			# 0x8

$L42:
beq	$7,$11,$L154
nop

$L44:
addiu	$5,$5,1
beq	$5,$8,$L34
nop

$L41:
lbu	$2,8($5)
sll	$4,$6,1
addu	$4,$17,$4
andi	$2,$2,0xf
sh	$2,0($4)
lbu	$3,8($5)
addiu	$7,$7,1
srl	$3,$3,4
sh	$3,4($4)
bne	$7,$9,$L42
addiu	$6,$6,4

addiu	$5,$5,1
move	$24,$6
bne	$5,$8,$L41
move	$6,$13

$L34:
lui	$24,%hi(adpcm_step)
addiu	$2,$24,%lo(adpcm_step)
sll	$3,$25,2
sll	$4,$14,2
addu	$4,$4,$2
addu	$3,$3,$2
sll	$13,$10,1
lw	$3,0($3)
blez	$13,$L115
lw	$4,0($4)

sw	$16,24($sp)
sw	$12,28($sp)
sw	$14,36($sp)
addiu	$15,$15,-1
move	$5,$17
move	$11,$0
move	$12,$0
addiu	$14,$sp,16
lui	$16,%hi(adpcm_index)
sw	$3,16($sp)
sw	$4,20($sp)
j	$L48
sw	$25,32($sp)

$L156:
lw	$2,8($9)
subu	$2,$2,$6
sw	$2,8($9)
lw	$3,8($4)
slt	$2,$3,-32768
beq	$2,$0,$L171
li	$2,32768			# 0x8000

li	$2,-32768			# 0xffffffffffff8000
$L174:
sw	$2,8($4)
addu	$6,$10,$14
$L175:
lw	$2,16($6)
lw	$4,8($6)
sll	$2,$2,2
addiu	$3,$24,%lo(adpcm_step)
addu	$2,$2,$3
addiu	$11,$11,1
sh	$4,0($5)
lw	$2,0($2)
beq	$13,$11,$L115
addiu	$5,$5,2

xor	$12,$12,$15
sw	$2,0($6)
$L48:
lhu	$8,0($5)
addiu	$3,$16,%lo(adpcm_index)
sll	$10,$12,2
sll	$2,$8,2
addu	$2,$2,$3
addu	$6,$10,$14
lw	$3,16($6)
lw	$4,0($2)
addu	$2,$3,$4
bltz	$2,$L155
sw	$2,16($6)

slt	$2,$2,89
bne	$2,$0,$L172
addu	$9,$10,$14

li	$2,88			# 0x58
sw	$2,16($6)
$L51:
addu	$9,$10,$14
$L172:
lw	$7,0($9)
andi	$2,$8,0x4
sra	$6,$7,3
addu	$3,$6,$7
andi	$4,$8,0x2
beq	$4,$0,$L55
movn	$6,$3,$2

sra	$2,$7,1
addu	$6,$6,$2
$L55:
andi	$2,$8,0x1
beq	$2,$0,$L173
andi	$2,$8,0x8

sra	$2,$7,2
addu	$6,$6,$2
andi	$2,$8,0x8
$L173:
bne	$2,$0,$L156
addu	$4,$10,$14

lw	$2,8($9)
addu	$2,$6,$2
sw	$2,8($9)
lw	$3,8($4)
slt	$2,$3,-32768
bne	$2,$0,$L174
li	$2,-32768			# 0xffffffffffff8000

li	$2,32768			# 0x8000
$L171:
slt	$2,$3,$2
bne	$2,$0,$L175
addu	$6,$10,$14

li	$2,32767			# 0x7fff
j	$L175
sw	$2,8($4)

$L152:
li	$2,-65536			# 0xffffffffffff0000
addu	$16,$16,$2
li	$2,2			# 0x2
bne	$15,$2,$L28
lbu	$25,2($5)

j	$L164
lhu	$12,4($5)

$L144:
lw	$3,156($16)
lw	$8,52($16)
lbu	$2,3($3)
lhu	$5,0($8)
lbu	$4,2($3)
sll	$2,$2,8
andi	$3,$5,0x8000
move	$10,$5
or	$9,$2,$4
bne	$3,$0,$L158
sh	$5,0($17)

$L69:
li	$2,2			# 0x2
beq	$9,$2,$L71
lbu	$14,2($8)

move	$15,$0
move	$12,$0
$L73:
sll	$3,$9,2
slt	$2,$3,$6
beq	$2,$0,$L137
sll	$2,$9,1

addu	$7,$17,$2
subu	$5,$6,$3
addu	$4,$8,$3
move	$11,$2
addiu	$6,$7,2
move	$8,$0
$L78:
lbu	$2,0($4)
addiu	$8,$8,1
srl	$2,$2,4
sh	$2,0($7)
lbu	$3,0($4)
addiu	$7,$7,4
andi	$3,$3,0xf
sh	$3,0($6)
addiu	$4,$4,1
bne	$8,$5,$L78
addiu	$6,$6,4

$L76:
lui	$24,%hi(adpcm_step)
addiu	$4,$24,%lo(adpcm_step)
sll	$5,$5,1
sll	$2,$14,2
sll	$3,$12,2
addu	$3,$3,$4
addu	$2,$2,$4
subu	$13,$5,$9
addu	$4,$17,$11
lw	$2,0($2)
blez	$13,$L115
lw	$3,0($3)

sw	$15,28($sp)
sw	$14,16($sp)
sw	$12,20($sp)
addiu	$15,$9,-1
move	$5,$4
move	$11,$0
move	$12,$0
addiu	$14,$sp,16
lui	$16,%hi(adpcm_index)
sw	$2,32($sp)
sw	$3,36($sp)
j	$L81
sw	$10,24($sp)

$L160:
lw	$2,8($9)
subu	$2,$2,$6
sw	$2,8($9)
lw	$3,8($4)
slt	$2,$3,-32768
beq	$2,$0,$L176
li	$2,32768			# 0x8000

li	$2,-32768			# 0xffffffffffff8000
$L179:
sw	$2,8($4)
addu	$6,$10,$14
$L180:
lw	$2,0($6)
lw	$4,8($6)
sll	$2,$2,2
addiu	$3,$24,%lo(adpcm_step)
addu	$2,$2,$3
addiu	$11,$11,1
sh	$4,0($5)
lw	$2,0($2)
beq	$13,$11,$L115
addiu	$5,$5,2

xor	$12,$12,$15
sw	$2,16($6)
$L81:
lhu	$8,0($5)
addiu	$3,$16,%lo(adpcm_index)
sll	$10,$12,2
sll	$2,$8,2
addu	$2,$2,$3
addu	$6,$10,$14
lw	$3,0($6)
lw	$4,0($2)
addu	$2,$3,$4
bltz	$2,$L159
sw	$2,0($6)

slt	$2,$2,89
bne	$2,$0,$L177
addu	$9,$10,$14

li	$2,88			# 0x58
sw	$2,0($6)
$L84:
addu	$9,$10,$14
$L177:
lw	$7,16($9)
andi	$2,$8,0x4
sra	$6,$7,3
addu	$3,$6,$7
andi	$4,$8,0x2
beq	$4,$0,$L88
movn	$6,$3,$2

sra	$2,$7,1
addu	$6,$6,$2
$L88:
andi	$2,$8,0x1
beq	$2,$0,$L178
andi	$2,$8,0x8

sra	$2,$7,2
addu	$6,$6,$2
andi	$2,$8,0x8
$L178:
bne	$2,$0,$L160
addu	$4,$10,$14

lw	$2,8($9)
addu	$2,$6,$2
sw	$2,8($9)
lw	$3,8($4)
slt	$2,$3,-32768
bne	$2,$0,$L179
li	$2,-32768			# 0xffffffffffff8000

li	$2,32768			# 0x8000
$L176:
slt	$2,$3,$2
bne	$2,$0,$L180
addu	$6,$10,$14

li	$2,32767			# 0x7fff
j	$L180
sw	$2,8($4)

$L153:
lhu	$12,4($5)
$L164:
andi	$2,$12,0x8000
bne	$2,$0,$L162
li	$2,-65536			# 0xffffffffffff0000

j	$L32
lbu	$14,6($5)

$L154:
move	$13,$6
move	$7,$0
j	$L44
move	$6,$24

$L148:
j	$L120
sw	$0,16($6)

$L155:
j	$L51
sw	$0,16($6)

$L158:
li	$2,-65536			# 0xffffffffffff0000
j	$L69
addu	$10,$5,$2

$L162:
lbu	$14,6($5)
j	$L32
addu	$12,$12,$2

$L71:
lhu	$2,4($8)
andi	$3,$2,0x8000
move	$15,$2
beq	$3,$0,$L74
sh	$2,2($17)

li	$2,-65536			# 0xffffffffffff0000
addu	$15,$15,$2
$L74:
j	$L73
lbu	$12,6($8)

$L159:
j	$L84
sw	$0,0($6)

$L147:
move	$5,$17
addiu	$6,$7,32
$L112:
lbu	$2,2($4)
andi	$2,$2,0xf
sh	$2,0($5)
lbu	$3,2($4)
addiu	$4,$4,1
srl	$3,$3,4
sh	$3,2($5)
bne	$6,$4,$L112
addiu	$5,$5,4

j	$L165
lui	$24,%hi(adpcm_step)

$L35:
addiu	$2,$6,-4
blez	$2,$L163
move	$10,$2

addu	$7,$6,$5
addiu	$4,$5,4
move	$5,$17
$L39:
lbu	$2,0($4)
andi	$2,$2,0xf
sh	$2,0($5)
lbu	$3,0($4)
addiu	$4,$4,1
srl	$3,$3,4
sh	$3,2($5)
bne	$7,$4,$L39
addiu	$5,$5,4

sll	$2,$15,2
subu	$10,$6,$2
move	$12,$0
j	$L34
move	$14,$0

$L145:
move	$11,$0
j	$L104
move	$8,$0

$L146:
j	$L104
move	$8,$0

$L137:
subu	$5,$6,$3
j	$L76
sll	$11,$9,1

$L163:
move	$12,$0
j	$L34
move	$14,$0

.set	macro
.set	reorder
.end	decode_audio
.globl	mpcodecs_ad_imaadpcm
.data
.align	2
.type	mpcodecs_ad_imaadpcm, @object
.size	mpcodecs_ad_imaadpcm, 24
mpcodecs_ad_imaadpcm:
.word	info
.word	preinit
.word	init
.word	uninit
.word	control
.word	decode_audio
.rdata
.align	2
.type	adpcm_step, @object
.size	adpcm_step, 356
adpcm_step:
.word	7
.word	8
.word	9
.word	10
.word	11
.word	12
.word	13
.word	14
.word	16
.word	17
.word	19
.word	21
.word	23
.word	25
.word	28
.word	31
.word	34
.word	37
.word	41
.word	45
.word	50
.word	55
.word	60
.word	66
.word	73
.word	80
.word	88
.word	97
.word	107
.word	118
.word	130
.word	143
.word	157
.word	173
.word	190
.word	209
.word	230
.word	253
.word	279
.word	307
.word	337
.word	371
.word	408
.word	449
.word	494
.word	544
.word	598
.word	658
.word	724
.word	796
.word	876
.word	963
.word	1060
.word	1166
.word	1282
.word	1411
.word	1552
.word	1707
.word	1878
.word	2066
.word	2272
.word	2499
.word	2749
.word	3024
.word	3327
.word	3660
.word	4026
.word	4428
.word	4871
.word	5358
.word	5894
.word	6484
.word	7132
.word	7845
.word	8630
.word	9493
.word	10442
.word	11487
.word	12635
.word	13899
.word	15289
.word	16818
.word	18500
.word	20350
.word	22385
.word	24623
.word	27086
.word	29794
.word	32767
.align	2
.type	adpcm_index, @object
.size	adpcm_index, 64
adpcm_index:
.word	-1
.word	-1
.word	-1
.word	-1
.word	2
.word	4
.word	6
.word	8
.word	-1
.word	-1
.word	-1
.word	-1
.word	2
.word	4
.word	6
.word	8
.section	.rodata.str1.4,"aMS",@progbits,1
.align	2
$LC0:
.ascii	"IMA ADPCM audio decoder\000"
.align	2
$LC1:
.ascii	"imaadpcm\000"
.align	2
$LC2:
.ascii	"Nick Kurshev\000"
.align	2
$LC3:
.ascii	"Mike Melanson\000"
.subsection	-1
.align	2
$LC4:
.ascii	"\000"
.data
.align	2
.type	info, @object
.size	info, 20
info:
.word	$LC0
.word	$LC1
.word	$LC2
.word	$LC3
.word	$LC4
.ident	"GCC: (GNU) 4.1.2"