ad_msadpcm.mid

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」· MID 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"