ad_msadpcm.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 585 行

.file	1 "ad_msadpcm.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

lw	$5,156($4)
lw	$7,4($4)
lbu	$2,13($5)
lbu	$3,12($5)
sll	$2,$2,8
or	$2,$2,$3
sll	$2,$2,2
sw	$2,64($4)
lbu	$3,13($5)
lbu	$6,12($5)
sll	$3,$3,8
or	$3,$3,$6
sll	$2,$3,1
addiu	$2,$2,-12
sw	$2,88($7)
li	$2,1			# 0x1
sw	$3,84($7)
j	$31
sw	$3,48($4)

.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	$6,3($5)
lbu	$2,2($5)
sll	$6,$6,8
or	$6,$6,$2
sw	$6,36($4)
lwl	$7,7($5)
li	$2,1			# 0x1
lwr	$7,4($5)
sw	$7,28($4)
lbu	$3,13($5)
mul	$7,$7,$6
lbu	$6,12($5)
sll	$3,$3,8
or	$3,$3,$6
mul	$3,$3,$7
lw	$6,88($8)
li	$5,2			# 0x2
divu	$0,$3,$6
teq	$6,$0,7
sw	$5,32($4)
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,$2,$L13
move	$3,$4

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

$L13:
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	.rodata.str1.4,"aMS",@progbits,1
.align	2
$LC0:
.ascii	"MS ADPCM: coefficient (%d) out of range (should be [0..6"
.ascii	"])\012\000"
.section	.text.decode_audio,"ax",@progbits
.align	2
.align	5
.ent	decode_audio
.type	decode_audio, @function
decode_audio:
.frame	$sp,88,$31		# vars= 40, regs= 7/0, args= 16, gp= 0
.mask	0x803f0000,-8
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-88
sw	$19,68($sp)
sw	$16,56($sp)
sw	$31,80($sp)
sw	$21,76($sp)
sw	$20,72($sp)
sw	$18,64($sp)
sw	$17,60($sp)
move	$16,$4
lw	$4,4($4)
move	$19,$5
lw	$6,84($4)
jal	demux_read_data
lw	$5,52($16)

lw	$3,4($16)
lw	$4,84($3)
beq	$2,$4,$L15
lw	$31,80($sp)

lw	$21,76($sp)
lw	$20,72($sp)
lw	$19,68($sp)
lw	$18,64($sp)
lw	$17,60($sp)
lw	$16,56($sp)
li	$2,-1			# 0xffffffffffffffff
j	$31
addiu	$sp,$sp,88

$L15:
lw	$2,156($16)
lw	$16,52($16)
lbu	$4,13($2)
lbu	$3,3($2)
lbu	$7,0($16)
lbu	$5,2($2)
lbu	$6,12($2)
sll	$3,$3,8
sll	$4,$4,8
sltu	$2,$7,7
or	$17,$3,$5
beq	$2,$0,$L61
or	$18,$4,$6

lui	$2,%hi(ms_adapt_coeff1)
lui	$3,%hi(ms_adapt_coeff2)
sll	$4,$7,2
addiu	$21,$2,%lo(ms_adapt_coeff1)
addiu	$20,$3,%lo(ms_adapt_coeff2)
addu	$5,$4,$20
addu	$4,$4,$21
lw	$2,0($4)
lw	$3,0($5)
sw	$2,40($sp)
li	$2,2			# 0x2
beq	$17,$2,$L20
sw	$3,48($sp)

$L67:
li	$2,1			# 0x1
li	$5,3			# 0x3
li	$7,5			# 0x5
li	$6,5			# 0x5
li	$14,7			# 0x7
$L22:
addu	$3,$16,$2
lbu	$2,1($3)
lbu	$4,0($3)
sll	$2,$2,8
addu	$4,$4,$2
andi	$3,$4,0x8000
beq	$3,$0,$L25
sw	$4,16($sp)

li	$2,-65536			# 0xffffffffffff0000
addu	$2,$4,$2
sw	$2,16($sp)
$L25:
li	$2,2			# 0x2
beq	$17,$2,$L62
addu	$3,$16,$5

$L27:
addu	$3,$5,$16
lbu	$2,1($3)
lbu	$4,0($3)
sll	$2,$2,8
addu	$4,$4,$2
andi	$3,$4,0x8000
beq	$3,$0,$L31
sw	$4,24($sp)

li	$2,-65536			# 0xffffffffffff0000
addu	$2,$4,$2
sw	$2,24($sp)
$L31:
li	$2,2			# 0x2
beq	$17,$2,$L63
addu	$3,$16,$6

$L33:
addu	$3,$6,$16
lbu	$2,1($3)
lbu	$4,0($3)
sll	$2,$2,8
addu	$4,$4,$2
andi	$3,$4,0x8000
beq	$3,$0,$L37
sw	$4,32($sp)

li	$2,-65536			# 0xffffffffffff0000
addu	$2,$4,$2
sw	$2,32($sp)
$L37:
li	$2,2			# 0x2
beq	$17,$2,$L64
li	$2,1			# 0x1

beq	$17,$2,$L65
lw	$2,32($sp)

$L43:
lw	$2,32($sp)
lw	$3,36($sp)
sh	$2,0($19)
sh	$3,2($19)
lw	$2,24($sp)
lw	$3,28($sp)
sh	$2,4($19)
sh	$3,6($19)
li	$4,4			# 0x4
$L45:
slt	$2,$14,$18
beq	$2,$0,$L46
sll	$2,$4,1

li	$12,1			# 0x1
addu	$9,$19,$2
addu	$11,$14,$16
addiu	$15,$17,-1
move	$13,$0
addiu	$20,$sp,16
lui	$19,%hi(ms_adapt_table)
li	$25,32767			# 0x7fff
li	$24,-32768			# 0xffffffffffff8000
beq	$12,$0,$L49
li	$16,32768			# 0x8000

$L66:
lbu	$2,0($11)
srl	$2,$2,4
move	$8,$2
$L51:
sll	$4,$13,2
addu	$7,$4,$20
sll	$6,$2,2
andi	$3,$8,0x8
addiu	$2,$8,-16
movn	$8,$2,$3
lw	$3,16($7)
lw	$2,32($7)
lw	$10,8($7)
mult	$3,$2
lw	$2,24($7)
addiu	$5,$19,%lo(ms_adapt_table)
madd	$10,$2
lw	$4,0($7)
mflo	$2
addu	$6,$6,$5
lw	$5,0($6)
slt	$3,$2,0
addiu	$6,$2,255
movn	$2,$6,$3
mul	$3,$8,$4
mul	$5,$4,$5
sra	$2,$2,8
addu	$4,$3,$2
slt	$6,$4,$16
addiu	$3,$5,255
slt	$2,$5,0
movn	$5,$3,$2
movz	$4,$25,$6
sra	$5,$5,8
slt	$2,$4,-32768
movn	$4,$24,$2
slt	$3,$5,16
xori	$12,$12,0x1
xor	$13,$13,$15
slt	$6,$14,$18
sh	$4,0($9)
beq	$3,$0,$L56
sw	$5,0($7)

li	$2,16			# 0x10
sw	$2,0($7)
$L56:
beq	$6,$0,$L46
addiu	$9,$9,2

sw	$4,8($7)
bne	$12,$0,$L66
sw	$10,16($7)

$L49:
lbu	$2,0($11)
addiu	$14,$14,1
andi	$8,$2,0xf
addiu	$11,$11,1
j	$L51
move	$2,$8

$L46:
sll	$2,$17,3
sll	$3,$17,1
subu	$2,$2,$3
subu	$2,$18,$2
lw	$31,80($sp)
lw	$21,76($sp)
lw	$20,72($sp)
lw	$19,68($sp)
lw	$18,64($sp)
lw	$17,60($sp)
lw	$16,56($sp)
sll	$2,$2,2
j	$31
addiu	$sp,$sp,88

$L61:
lui	$6,%hi($LC0)
li	$4,12			# 0xc
li	$5,2			# 0x2
jal	mp_msg
addiu	$6,$6,%lo($LC0)

lbu	$7,0($16)
lui	$2,%hi(ms_adapt_coeff1)
lui	$3,%hi(ms_adapt_coeff2)
sll	$4,$7,2
addiu	$21,$2,%lo(ms_adapt_coeff1)
addiu	$20,$3,%lo(ms_adapt_coeff2)
addu	$5,$4,$20
addu	$4,$4,$21
lw	$2,0($4)
lw	$3,0($5)
sw	$2,40($sp)
li	$2,2			# 0x2
bne	$17,$2,$L67
sw	$3,48($sp)

$L20:
lbu	$7,1($16)
sltu	$2,$7,7
beq	$2,$0,$L68
li	$4,12			# 0xc

$L23:
sll	$2,$7,2
addu	$5,$2,$20
addu	$2,$2,$21
lw	$3,0($2)
lw	$4,0($5)
li	$2,2			# 0x2
li	$5,4			# 0x4
li	$7,6			# 0x6
li	$6,6			# 0x6
li	$14,8			# 0x8
sw	$3,44($sp)
j	$L22
sw	$4,52($sp)

$L64:
addu	$3,$16,$14
lbu	$2,1($3)
lbu	$4,0($3)
sll	$2,$2,8
addu	$4,$4,$2
andi	$3,$4,0x8000
beq	$3,$0,$L41
sw	$4,36($sp)

li	$2,-65536			# 0xffffffffffff0000
addu	$2,$4,$2
sw	$2,36($sp)
$L41:
j	$L43
addiu	$14,$14,2

$L63:
lbu	$2,1($3)
lbu	$4,0($3)
sll	$2,$2,8
addu	$4,$4,$2
andi	$3,$4,0x8000
beq	$3,$0,$L60
sw	$4,28($sp)

li	$2,-65536			# 0xffffffffffff0000
addu	$2,$4,$2
sw	$2,28($sp)
$L60:
move	$6,$14
j	$L33
addiu	$14,$14,2

$L62:
lbu	$2,1($3)
lbu	$4,0($3)
sll	$2,$2,8
addu	$4,$4,$2
andi	$3,$4,0x8000
bne	$3,$0,$L29
sw	$4,20($sp)

move	$5,$7
addiu	$6,$7,2
j	$L27
addiu	$14,$7,4

$L65:
lw	$3,24($sp)
li	$4,2			# 0x2
sh	$2,0($19)
j	$L45
sh	$3,2($19)

$L29:
li	$2,-65536			# 0xffffffffffff0000
addu	$2,$4,$2
move	$5,$7
addiu	$6,$7,2
addiu	$14,$7,4
j	$L27
sw	$2,20($sp)

$L68:
lui	$6,%hi($LC0)
addiu	$6,$6,%lo($LC0)
jal	mp_msg
li	$5,2			# 0x2

j	$L23
lbu	$7,1($16)

.set	macro
.set	reorder
.end	decode_audio
.globl	mpcodecs_ad_msadpcm
.data
.align	2
.type	mpcodecs_ad_msadpcm, @object
.size	mpcodecs_ad_msadpcm, 24
mpcodecs_ad_msadpcm:
.word	info
.word	preinit
.word	init
.word	uninit
.word	control
.word	decode_audio
.rdata
.align	2
.type	ms_adapt_coeff1, @object
.size	ms_adapt_coeff1, 28
ms_adapt_coeff1:
.word	256
.word	512
.word	0
.word	192
.word	240
.word	460
.word	392
.align	2
.type	ms_adapt_coeff2, @object
.size	ms_adapt_coeff2, 28
ms_adapt_coeff2:
.word	0
.word	-256
.word	0
.word	64
.word	0
.word	-208
.word	-232
.align	2
.type	ms_adapt_table, @object
.size	ms_adapt_table, 64
ms_adapt_table:
.word	230
.word	230
.word	230
.word	230
.word	307
.word	409
.word	512
.word	614
.word	768
.word	614
.word	512
.word	409
.word	307
.word	230
.word	230
.word	230
.section	.rodata.str1.4
.align	2
$LC1:
.ascii	"MS ADPCM audio decoder\000"
.align	2
$LC2:
.ascii	"msadpcm\000"
.align	2
$LC3:
.ascii	"Nick Kurshev\000"
.align	2
$LC4:
.ascii	"Mike Melanson\000"
.subsection	-1
.align	2
$LC5:
.ascii	"\000"
.data
.align	2
.type	info, @object
.size	info, 20
info:
.word	$LC1
.word	$LC2
.word	$LC3
.word	$LC4
.word	$LC5
.ident	"GCC: (GNU) 4.1.2"