ad_liba52.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 1,531 行 · 第 1/2 页

	.file	1 "ad_liba52.c"
	.section .mdebug.abi32
	.previous
	.section	.text.func_table,"ax",@progbits
	.align	2
	.align	5
	.globl	func_table
	.ent	func_table
	.type	func_table, @function
func_table:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	lui	$2,%hi(mpcodecs_ad_liba52)
	j	$31
	addiu	$2,$2,%lo(mpcodecs_ad_liba52)

	.set	macro
	.set	reorder
	.end	func_table
	.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	$3,32($4)
	lui	$2,%hi(audio_output_channels)
	lw	$5,%lo(audio_output_channels)($2)
	slt	$2,$3,2
	beq	$2,$0,$L4
	nop

	li	$3,2			# 0x2
	sw	$3,32($4)
$L4:
	sll	$2,$3,11
	sll	$3,$3,9
	subu	$2,$2,$3
	mul	$2,$5,$2
	li	$3,3840			# 0xf00
	sw	$3,48($4)
	sw	$2,64($4)
	li	$3,1			# 0x1
	lui	$2,%hi(a52_level)
	sw	$3,%lo(a52_level)($2)
	j	$31
	li	$2,1			# 0x1

	.set	macro
	.set	reorder
	.end	preinit
	.section	.text.a52_resample_float,"ax",@progbits
	.align	2
	.align	5
	.ent	a52_resample_float
	.type	a52_resample_float, @function
a52_resample_float:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	lui	$2,%hi(channel_map)
	lw	$10,%lo(channel_map)($2)
	move	$7,$5
	move	$8,$0
	li	$9,15			# 0xf
	li	$11,256			# 0x100
$L9:
	j	$L10
	move	$6,$10

$L11:
	lw	$2,0($2)
	srl	$6,$6,4
	sw	$2,0($7)
	beq	$6,$0,$L21
	addiu	$7,$7,4

$L10:
	andi	$3,$6,0xf
	addiu	$2,$3,-1
	sll	$2,$2,8
	addu	$2,$2,$8
	sll	$2,$2,2
	bne	$3,$9,$L11
	addu	$2,$2,$4

	move	$2,$0
	srl	$6,$6,4
	sw	$2,0($7)
	bne	$6,$0,$L10
	addiu	$7,$7,4

$L21:
	addiu	$8,$8,1
	bne	$8,$11,$L9
	nop

	subu	$2,$7,$5
	j	$31
	sra	$2,$2,1

	.set	macro
	.set	reorder
	.end	a52_resample_float
	.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
	.globl	__floatsidf
	.globl	__extendsfdf2
	.globl	__fixdfsi
	.section	.text.dynrng_call,"ax",@progbits
	.align	2
	.align	5
	.globl	dynrng_call
	.ent	dynrng_call
	.type	dynrng_call, @function
dynrng_call:
	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
	.mask	0x80030000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-32
	sw	$31,24($sp)
	sw	$17,20($sp)
	jal	__floatsidf
	sw	$16,16($sp)

	move	$16,$2
	lui	$2,%hi(a52_drc_level)
	lw	$4,%lo(a52_drc_level)($2)
	jal	__extendsfdf2
	move	$17,$3

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

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

	lw	$31,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	j	$31
	addiu	$sp,$sp,32

	.set	macro
	.set	reorder
	.end	dynrng_call
	.section	.rodata.str1.4,"aMS",@progbits,1
	.align	2
$LC0:
	.ascii	"a52: len=%d  flags=0x%X  %d Hz %d bit/s\012\000"
	.align	2
$LC1:
	.ascii	"a52: CRC check failed!  \012\000"
	.section	.text.a52_fillbuff,"ax",@progbits
	.align	2
	.align	5
	.globl	a52_fillbuff
	.ent	a52_fillbuff
	.type	a52_fillbuff, @function
a52_fillbuff:
	.frame	$sp,64,$31		# vars= 16, regs= 4/0, args= 32, gp= 0
	.mask	0x80070000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-64
	sw	$16,48($sp)
	move	$16,$4
	sw	$31,60($sp)
	sw	$18,56($sp)
	sw	$17,52($sp)
	sw	$0,32($sp)
	sw	$0,36($sp)
	sw	$0,40($sp)
	move	$4,$0
	sw	$0,56($16)
$L56:
	slt	$2,$4,8
	bne	$2,$0,$L28
	nop

$L57:
	lw	$2,12($16)
	li	$17,8192			# 0x2000
	beq	$2,$17,$L36
	li	$6,8			# 0x8

	lw	$4,52($16)
	jal	swab
	move	$5,$4

$L36:
	lw	$4,52($16)
	addiu	$5,$sp,32
	addiu	$6,$sp,36
	jal	a52_syncinfo
	addiu	$7,$sp,40

	move	$18,$2
	addiu	$2,$2,-7
	sltu	$2,$2,3834
	bne	$2,$0,$L38
	lw	$2,32($sp)

	lw	$2,12($16)
	beq	$2,$17,$L40
	li	$6,8			# 0x8

	lw	$4,52($16)
	jal	swab
	move	$5,$4

$L40:
	lw	$4,52($16)
	li	$6,7			# 0x7
	jal	memmove
	addiu	$5,$4,1

	lw	$4,56($16)
	addiu	$2,$4,-1
	move	$4,$2
	sw	$2,56($16)
	slt	$2,$4,8
	beq	$2,$0,$L57
	nop

$L28:
	lw	$4,4($16)
	lw	$5,0($4)
	lw	$2,4($4)
	slt	$2,$5,$2
	bne	$2,$0,$L58
	addiu	$3,$5,1

	jal	ds_fill_buffer
	nop

	beq	$2,$0,$L32
	nop

	lw	$3,4($16)
	lw	$4,0($3)
	lw	$2,8($3)
	addiu	$5,$4,1
	addu	$2,$2,$4
	lbu	$6,0($2)
	bltz	$6,$L32
	sw	$5,0($3)

$L59:
	lw	$3,56($16)
	lw	$2,52($16)
	addiu	$4,$3,1
	addu	$2,$2,$3
	sb	$6,0($2)
	j	$L56
	sw	$4,56($16)

$L58:
	lw	$2,8($4)
	addu	$2,$2,$5
	lbu	$6,0($2)
	bgez	$6,$L59
	sw	$3,0($4)

$L32:
	li	$18,-1			# 0xffffffffffffffff
	move	$2,$18
$L60:
	lw	$31,60($sp)
	lw	$18,56($sp)
	lw	$17,52($sp)
	lw	$16,48($sp)
	j	$31
	addiu	$sp,$sp,64

$L38:
	lw	$3,36($sp)
	sw	$2,16($sp)
	lui	$6,%hi($LC0)
	lw	$2,40($sp)
	addiu	$6,$6,%lo($LC0)
	li	$4,12			# 0xc
	li	$5,7			# 0x7
	move	$7,$18
	sw	$3,20($sp)
	jal	mp_msg
	sw	$2,24($sp)

	lw	$3,40($sp)
	lw	$4,24($16)
	addiu	$5,$3,7
	slt	$2,$3,0
	movn	$3,$5,$2
	xori	$4,$4,0x1d
	li	$2,2			# 0x2
	li	$6,4			# 0x4
	movn	$6,$2,$4
	lw	$5,52($16)
	lw	$2,36($sp)
	sra	$3,$3,3
	addiu	$17,$18,-8
	lw	$4,4($16)
	sw	$3,44($16)
	sw	$6,32($16)
	sw	$2,28($16)
	addiu	$5,$5,8
	jal	demux_read_data
	move	$6,$17

	lw	$3,12($16)
	li	$2,8192			# 0x2000
	beq	$3,$2,$L46
	move	$6,$17

	lw	$4,52($16)
	addiu	$4,$4,8
	jal	swab
	move	$5,$4

$L46:
	lw	$4,52($16)
	addiu	$5,$18,-2
	jal	a52_crc16_block
	addiu	$4,$4,2

	beq	$2,$0,$L60
	move	$2,$18

	lui	$6,%hi($LC1)
	addiu	$6,$6,%lo($LC1)
	li	$4,12			# 0xc
	jal	mp_msg
	li	$5,5			# 0x5

	move	$2,$18
	lw	$31,60($sp)
	lw	$18,56($sp)
	lw	$17,52($sp)
	lw	$16,48($sp)
	j	$31
	addiu	$sp,$sp,64

	.set	macro
	.set	reorder
	.end	a52_fillbuff
	.section	.rodata.str1.4
	.align	2
$LC2:
	.ascii	"a52: error decoding frame\012\000"
	.align	2
$LC3:
	.ascii	"a52: error at resampling\012\000"
	.align	2
$LC4:
	.ascii	"len <= maxlen\000"
	.align	2
$LC5:
	.ascii	"ad_liba52.c\000"
	.section	.text.decode_audio,"ax",@progbits
	.align	2
	.align	5
	.ent	decode_audio
	.type	decode_audio, @function
decode_audio:
	.frame	$sp,64,$31		# vars= 8, regs= 7/0, args= 24, gp= 0
	.mask	0x803f0000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-64
	sw	$21,52($sp)
	sw	$20,48($sp)
	sw	$17,36($sp)
	sw	$16,32($sp)
	sw	$31,56($sp)
	sw	$19,44($sp)
	sw	$18,40($sp)
	lui	$2,%hi(a52_flags)
	lw	$6,24($4)
	lw	$3,%lo(a52_flags)($2)
	lui	$2,%hi(a52_level)
	lw	$8,%lo(a52_level)($2)
	lw	$9,56($4)
	ori	$3,$3,0x20
	xori	$6,$6,0x1d
	li	$2,384			# 0x180
	move	$17,$0
	move	$16,$4
	sw	$8,24($sp)
	sw	$3,28($sp)
	movn	$17,$2,$6
	move	$20,$5
	beq	$9,$0,$L86
	move	$21,$7

	lui	$18,%hi(a52_state)
$L93:
	lw	$5,52($16)
	lw	$4,%lo(a52_state)($18)
	sw	$0,56($16)
	addiu	$6,$sp,28
	addiu	$7,$sp,24
	jal	a52_frame
	sw	$17,16($sp)

	bne	$2,$0,$L87
	lui	$2,%hi(a52_drc_action)

	lw	$3,%lo(a52_drc_action)($2)
	bne	$3,$0,$L88
	lw	$4,%lo(a52_state)($18)

$L91:
	jal	a52_block
	lui	$18,%hi(a52_state)

	bne	$2,$0,$L89
	lw	$4,%lo(a52_state)($18)

	lui	$19,%hi(a52_resample)
	jal	a52_samples
	lw	$16,%lo(a52_resample)($19)

	move	$4,$2
	jal	$16
	move	$5,$20

	lw	$4,%lo(a52_state)($18)
	jal	a52_block
	sll	$17,$2,1

	bne	$2,$0,$L77
	lw	$4,%lo(a52_state)($18)

	jal	a52_samples
	lw	$16,%lo(a52_resample)($19)

	move	$4,$2
	jal	$16
	addu	$5,$17,$20

	lw	$4,%lo(a52_state)($18)
	sll	$2,$2,1
	jal	a52_block
	addu	$17,$17,$2

	bne	$2,$0,$L77
	lw	$4,%lo(a52_state)($18)

	jal	a52_samples
	lw	$16,%lo(a52_resample)($19)

	move	$4,$2
	jal	$16
	addu	$5,$17,$20

	lw	$4,%lo(a52_state)($18)
	sll	$2,$2,1
	jal	a52_block
	addu	$17,$17,$2

	bne	$2,$0,$L77
	lw	$4,%lo(a52_state)($18)

	jal	a52_samples
	lw	$16,%lo(a52_resample)($19)

	move	$4,$2
	jal	$16
	addu	$5,$17,$20

	lw	$4,%lo(a52_state)($18)
	sll	$2,$2,1
	jal	a52_block
	addu	$17,$17,$2

	bne	$2,$0,$L77
	lw	$4,%lo(a52_state)($18)

	jal	a52_samples
	lw	$16,%lo(a52_resample)($19)

	move	$4,$2
	jal	$16
	addu	$5,$17,$20

	lw	$4,%lo(a52_state)($18)
	sll	$2,$2,1
	jal	a52_block
	addu	$17,$17,$2

	bne	$2,$0,$L77
	lw	$4,%lo(a52_state)($18)

	jal	a52_samples
	lw	$16,%lo(a52_resample)($19)

	move	$4,$2
	jal	$16
	addu	$5,$17,$20

	sll	$2,$2,1
	addu	$17,$17,$2
	slt	$2,$21,$17
$L92:
	bne	$2,$0,$L90
	lui	$4,%hi($LC4)

$L70:
	move	$2,$17
	lw	$31,56($sp)
	lw	$21,52($sp)
	lw	$20,48($sp)
	lw	$19,44($sp)
	lw	$18,40($sp)
	lw	$17,36($sp)
	lw	$16,32($sp)
	j	$31
	addiu	$sp,$sp,64

$L88:
	move	$5,$0
	jal	a52_dynrng
	move	$6,$0

	j	$L91
	lw	$4,%lo(a52_state)($18)

$L89:
	move	$17,$0
$L77:
	lui	$6,%hi($LC3)
	addiu	$6,$6,%lo($LC3)
	li	$4,12			# 0xc
	jal	mp_msg
	li	$5,2			# 0x2

	j	$L92
	slt	$2,$21,$17

$L86:
	jal	a52_fillbuff
	nop

	bgez	$2,$L93
	lui	$18,%hi(a52_state)

	j	$L70
	li	$17,-1			# 0xffffffffffffffff

$L87:
	lui	$6,%hi($LC2)
	addiu	$6,$6,%lo($LC2)
	li	$4,12			# 0xc
	jal	mp_msg
	li	$5,2			# 0x2

	j	$L70
	li	$17,-1			# 0xffffffffffffffff

$L90:
	lui	$5,%hi($LC5)
	lui	$7,%hi(__PRETTY_FUNCTION__.4683)
	addiu	$4,$4,%lo($LC4)
	addiu	$5,$5,%lo($LC5)
	addiu	$7,$7,%lo(__PRETTY_FUNCTION__.4683)
	jal	__assert_fail
	li	$6,328			# 0x148

	.set	macro
	.set	reorder
	.end	decode_audio
	.globl	__gtsf2
	.globl	__muldf3
	.section	.rodata.cst4,"aM",@progbits,4
	.align	2
$LC6:
	.word	1114636288
	.section	.rodata.cst8,"aM",@progbits,8
	.align	3
$LC7:
	.word	0
	.word	1074266112
	.section	.rodata.cst4
	.align	2
$LC8:
	.word	-1018691584
	.section	.rodata.cst8
	.align	3
$LC9:
	.word	-1717986918
	.word	1068079513
	.align	3
$LC10:
	.word	0
	.word	1076101120
	.section	.text.control,"ax",@progbits
	.align	2
	.align	5
	.ent	control
	.type	control, @function
control:
	.frame	$sp,24,$31		# vars= 0, regs= 2/0, args= 16, gp= 0
	.mask	0x80010000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-24
	li	$2,3			# 0x3
	sw	$31,20($sp)
	sw	$16,16($sp)
	beq	$5,$2,$L97
	sw	$7,36($sp)

	slt	$2,$5,4
	beq	$2,$0,$L99
	li	$2,4			# 0x4

	blez	$5,$L95
	nop

	jal	a52_fillbuff
	nop

	li	$4,1			# 0x1
$L100:
	lw	$31,20($sp)
	lw	$16,16($sp)
	move	$2,$4
	j	$31
	addiu	$sp,$sp,24

$L99:
	beq	$5,$2,$L98
	lui	$2,%hi($LC6)

$L95:
	li	$4,-1			# 0xffffffffffffffff
	lw	$31,20($sp)
	lw	$16,16($sp)
	move	$2,$4
	j	$31
	addiu	$sp,$sp,24

$L97:
	lw	$4,0($6)
	li	$2,9			# 0x9
	beq	$4,$2,$L112
	xori	$2,$4,0x1d

	sltu	$4,$2,1
	lw	$31,20($sp)
	lw	$16,16($sp)
	move	$2,$4
	j	$31
	addiu	$sp,$sp,24

$L98:
	lw	$16,0($6)
	lw	$5,%lo($LC6)($2)
	jal	__gtsf2
	move	$4,$16

	blez	$2,$L101
	lui	$2,%hi($LC8)

	lui	$2,%hi($LC7)
	lw	$6,%lo($LC7)($2)
	lw	$7,%lo($LC7+4)($2)
$L104:
	lui	$2,%hi($LC10)
	lw	$4,%lo($LC10)($2)
	jal	pow
	lw	$5,%lo($LC10+4)($2)

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

	move	$3,$2
$L107:
	lui	$2,%hi(a52_level)
	sw	$3,%lo(a52_level)($2)
	li	$4,1			# 0x1
	lw	$31,20($sp)
	lw	$16,16($sp)
	move	$2,$4
	j	$31
	addiu	$sp,$sp,24

$L112:
	j	$L100
	li	$4,1			# 0x1

$L101:
	lw	$5,%lo($LC8)($2)
	jal	__gtsf2
	move	$4,$16

	blez	$2,$L107
	move	$3,$0

	jal	__extendsfdf2
	move	$4,$16

	lui	$4,%hi($LC9)
	lw	$6,%lo($LC9)($4)
	lw	$7,%lo($LC9+4)($4)
	move	$5,$3
	jal	__muldf3
	move	$4,$2

	move	$6,$2
	j	$L104
	move	$7,$3

	.set	macro
	.set	reorder
	.end	control
	.section	.rodata.str1.4
	.align	2
$LC11:
	.ascii	"A52 init failed\012\000"
	.align	2
$LC12:
	.ascii	"A52 sync failed\012\000"