mp12_ram.s

samsung 9908DVD源代码,

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//////////////////////////////////////////////////////////////////////////////////
;		The following program will decoding Layer 1 & 2 bitstream
;		by S/W Algorithm
;			File Name: mp12_ram.h
;			copyright ji,Han      2001.8.6
;
;
;	G_		Stand for Global & MPEG variable with static address
;	L_		Stand for Local & MPEG variable
;
//////////////////////////////////////////////////////////////////////////////////
.ifndef	_MP12_RAM_H
_MP12_RAM_H		.equ	1
.include "MP3_DEF.H"
MP12_LIB		.equ	0

MEM_OFFSETL2	.equ	0x0000


section_mp12Decoding24bit	section	udata,word3,overlay,abs	XMEM_BASE_L12_1
	section_mp12Decoding24bit

	Area_bitalloc::					ds3		64				// LRLRLR.....L(32)/R(32)	
	Area_fraction::					ds3		32*18*2

section_mp12DecodingVar	section	udata,word3,overlay,abs	XMEM_BASE_L12_2
	section_mp12DecodingVar

	Area_scfsi::					ds3		64
	Area_L2Variables::				ds3		32
	Area_samplebuf::				ds3		3
	GLayerDiff::					ds3		1
	GL2Done::						ds3		1	
	
	
section_mp12DecodingYbase	section	udata,word3,overlay,abs XMEM_BASE_L12_3 //,abs	0x9f40
	section_mp12DecodingYbase

	Area_scalefactor0::				ds3		64				// LRLRLR...
	Area_scalefactor1::				ds3		64
	Area_scalefactor2::				ds3		64	
	

.endif	//_MP12_RAM_H

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		end