data2.s

关于DVD上的PCM的解码的代码,PCM的DSP压缩,解调的算法,用RISC32指令来写.

	.rdata

#ifndef	EFFECT
#include "ac3_com.h"
#endif
	.globl	PCM_Config_Word
	.globl	MIN_IBUF_VAR
	.globl	EFFECT_COMMAND
	.globl	BAblksize
	.globl	FIFO_BLK_PTR
	.globl	FIFO_flag
	.globl	MUTE_FLAG
	.globl	CLOCK_TABLE
	.globl	TEMP_MpegAttr
	.globl	DTS_left_over
	.rdata	
DTS_left_over:	.align	2
		.word	0x000000
PCM_Config_Word:.align	2
		.word	0
	
MIN_IBUF_VAR:	.align	2
		.word	0	
	
EFFECT_COMMAND:	.align	2
		.word	0	
	
BAblksize:	.align	2
		.byte	4	; 16-bit
		.byte	5	; 20-bit
		.byte	6	; 24-bit
		
FIFO_BLK_PTR:	.align	2
		.word	0x000000
FIFO_flag:	.word	0x000000
MUTE_FLAG:	.word	0x000000
		
CLOCK_TABLE:	.align	2
		.word	0x00300000	; MicroClock (2 pins):	value
		.word	0xffcfcfff	; MicroClock (2 pins):	mask
		.word	0x00302000	; Chrontel (2 pins):	value
		.word	0xffcfcfff	; Chrontel (2 pins):	mask
		.word	0x00380000	; MicroClock (3 pins):	value
		.word	0xffc7c7ff	; MicroClock (3 pins):	mask

TEMP_MpegAttr:	.word	0	; stack for key authentication

#ifdef	EFFECT
	.global	mid_buf_rd_ptr
	.global	mid_buf_wr_ptr
	.global	ok_decode_flag
	.global	Audio_Effect_Entry
	.global	r31_temp
	.global	clr_buf_flag
	.global	cs_done_flag
mid_buf_rd_ptr:	.word	0x00000000
mid_buf_wr_ptr:	.word	0x00000000
ok_decode_flag:	.word	0x00000000
Audio_Effect_Entry:	.word	0x00000000
r31_temp:	.word	0x00000000
clr_buf_flag:	.byte	0x00
cs_done_flag:	.byte	0x00
		.byte	0x00	// dumi
		.byte	0x00	// dumi
#endif	//EFFECT

#ifdef	MSW_ADD_QSOUND
	.global	QSOUND_CMD_BUF
QSOUND_CMD_BUF:
	.word	0
#endif
	.global	AVF_CMD_BUF
	// AVF_LEFT_ON: 0xa01;  AVF_LEFT_OFF: 0xa11;
	// AVF_RIGHT_ON: 0xa02;  AVF_RIGHT_OFF: 0xa12;
AVF_CMD_BUF:			// Automatic Voice Following
	.word	0
//------------------------------------------------------------------------