debug.h

关于DVD的MPEG2用的DSP代码,在DSP的实现MPEG的压缩,解压算法.

/* debug.h - header of debug.S */

#ifdef	LS388
#if	SVCD
#define MEM_SEG                 0x9
#define DBG_SEG                 0xb
#else	// SVCD
#define MEM_SEG                 0x10
#define DBG_SEG                 0x12
#endif	// SVCD
#define	PCM_Out_Ctrl		(0xe04>>2)
#define PCM_Rd_Ptr              (0xe14>>2)
#else	// LS388
#define MEM_SEG                 0x1f
#define DBG_SEG                 0x1e
#define PCM_Out_Ctrl            (0x284>>2)
#define PCM_Rd_Ptr              (0x294>>2)
#endif	// LS388

#define DEBUG_DRAM      0xec00        // ec00 - ec7f: GPR buffer
                                      // ec80 - ec9f: AGRAdr buffer
                                      // eca0 - ecbf: AGRMod buffer
                                      // ecc0 - ecdf: AGRSiz buffer
                                      // ece0 - ecff: AGRInc buffer
                                      // ed00: TrapReg buffer
                                      // ed04: StatusReg buffer
                                      // ed08: IcacheSegment buffer
#define DB_GPR0         DEBUG_DRAM+4*0
#define DB_GPR1         DEBUG_DRAM+4*1
#define DB_GPR2         DEBUG_DRAM+4*2
#define DB_GPR3         DEBUG_DRAM+4*3
#define DB_GPR4         DEBUG_DRAM+4*4
#define DB_GPR5         DEBUG_DRAM+4*5
#define DB_GPR6         DEBUG_DRAM+4*6
#define DB_GPR7         DEBUG_DRAM+4*7
#define DB_GPR8         DEBUG_DRAM+4*8
#define DB_GPR9         DEBUG_DRAM+4*9
#define DB_GPR10        DEBUG_DRAM+4*10
#define DB_GPR11        DEBUG_DRAM+4*11
#define DB_GPR12        DEBUG_DRAM+4*12
#define DB_GPR13        DEBUG_DRAM+4*13
#define DB_GPR14        DEBUG_DRAM+4*14
#define DB_GPR15        DEBUG_DRAM+4*15
#define DB_GPR16        DEBUG_DRAM+4*16
#define DB_GPR17        DEBUG_DRAM+4*17
#define DB_GPR18        DEBUG_DRAM+4*18
#define DB_GPR19        DEBUG_DRAM+4*19
#define DB_GPR20        DEBUG_DRAM+4*20
#define DB_GPR21        DEBUG_DRAM+4*21
#define DB_GPR22        DEBUG_DRAM+4*22
#define DB_GPR23        DEBUG_DRAM+4*23
#define DB_GPR24        DEBUG_DRAM+4*24
#define DB_GPR25        DEBUG_DRAM+4*25
#define DB_GPR26        DEBUG_DRAM+4*26
#define DB_GPR27        DEBUG_DRAM+4*27
#define DB_GPR28        DEBUG_DRAM+4*28
#define DB_GPR29        DEBUG_DRAM+4*29
#define DB_GPR30        DEBUG_DRAM+4*30
#define DB_GPR31        DEBUG_DRAM+4*31

#define DB_AGRADR0      DEBUG_DRAM+4*32
#define DB_AGRADR1      DEBUG_DRAM+4*33
#define DB_AGRADR2      DEBUG_DRAM+4*34
#define DB_AGRADR3      DEBUG_DRAM+4*35
#define DB_AGRADR4      DEBUG_DRAM+4*36
#define DB_AGRADR5      DEBUG_DRAM+4*37
#define DB_AGRADR6      DEBUG_DRAM+4*38
#define DB_AGRADR7      DEBUG_DRAM+4*39

#define DB_AGRMOD0      DEBUG_DRAM+4*40
#define DB_AGRMOD1      DEBUG_DRAM+4*41
#define DB_AGRMOD2      DEBUG_DRAM+4*42
#define DB_AGRMOD3      DEBUG_DRAM+4*43
#define DB_AGRMOD4      DEBUG_DRAM+4*44
#define DB_AGRMOD5      DEBUG_DRAM+4*45
#define DB_AGRMOD6      DEBUG_DRAM+4*46
#define DB_AGRMOD7      DEBUG_DRAM+4*47

#define DB_AGRSIZ0      DEBUG_DRAM+4*48
#define DB_AGRSIZ1      DEBUG_DRAM+4*49
#define DB_AGRSIZ2      DEBUG_DRAM+4*50
#define DB_AGRSIZ3      DEBUG_DRAM+4*51
#define DB_AGRSIZ4      DEBUG_DRAM+4*52
#define DB_AGRSIZ5      DEBUG_DRAM+4*53
#define DB_AGRSIZ6      DEBUG_DRAM+4*54
#define DB_AGRSIZ7      DEBUG_DRAM+4*55

#define DB_AGRINC0      DEBUG_DRAM+4*56
#define DB_AGRINC1      DEBUG_DRAM+4*57
#define DB_AGRINC2      DEBUG_DRAM+4*58
#define DB_AGRINC3      DEBUG_DRAM+4*59
#define DB_AGRINC4      DEBUG_DRAM+4*60
#define DB_AGRINC5      DEBUG_DRAM+4*61
#define DB_AGRINC6      DEBUG_DRAM+4*62
#define DB_AGRINC7      DEBUG_DRAM+4*63

#define DB_TRAP         DEBUG_DRAM+4*64
#define DB_STATUS       DEBUG_DRAM+4*65
#define DB_IcacheSegment    DEBUG_DRAM+4*66

//#define TRAP_ADDR       0xed0c        // local buffer trap point address
//#define TRAP_ADDR_TEMP  0xed10        // local buffer trap point address
//#define DEBUG_FLAG_TEMP 0xed14        //  (debug use)

/* Internal register patch */
#define DB_Gb_Getbits_Ptr       DEBUG_DRAM+4*70 // $96
#define DB_Gb_Shadow_Ptr        DEBUG_DRAM+4*71 // $97
#define DB_Gb_Control           DEBUG_DRAM+4*72 // $98
#define DB_Gb_RdWrPtr           DEBUG_DRAM+4*73 // $99
#define DB_Gb_Prev_LocalData    DEBUG_DRAM+4*74 // $100
#define DB_Gb_dma_addr          DEBUG_DRAM+4*75 // $101
#define DB_LoopCount            DEBUG_DRAM+4*76 // $102

//#define DB_Gb_Getbits_Ptr       0xed18        // $96
//#define DB_Gb_Shadow_Ptr        0xed1c        // $97
//#define DB_Gb_Control           0xed20        // $98
//#define DB_Gb_RdWrPtr           0xed24        // $99
//#define DB_Gb_Prev_LocalData    0xed28        // $100
//#define DB_Gb_dma_addr          0xed2c        // $101
//#define DB_LoopCount            0xed30        // $102

#define BREAK_I_INST    DEBUG_DRAM+4*193    // Break instruction
#define BREAK_M_DATA    DEBUG_DRAM+4*194    // Local buffer modify data
#define BREAK_S_ADDR    DEBUG_DRAM+4*195    // Local buffer modify start addr
#define BREAK_E_ADDR    DEBUG_DRAM+4*196    // Local buffer modify end addr
#define RETURN_OFFSET   DEBUG_DRAM+4*197    // Addr of the 2nd last inst of
                                            //  this routine

//#define BREAK_I_INST    0xef04        // Break instruction
//#define BREAK_M_DATA    0xef08        // Local buffer modify data
//#define BREAK_S_ADDR    0xef0c        // Local buffer modify start address
//#define BREAK_E_ADDR    0xef10        // Local buffer modify end address
//#define RETURN_OFFSET   0xef14        // Addr of the 2nd last inst of this
                                        //  routine

#define DB_FLAG_T       DEBUG_DRAM+4*198    // DEBUG_FLAG temp copy
#define INT_CTRL_TEMP   DEBUG_DRAM+4*199    // Reg274 temp copy
#define DB_FLAG         DEBUG_DRAM+4*255

//#define DEBUG_FLAG_T    0xef18        // DEBUG_FLAG temp copy
//#define INT_CTRL_TEMP   0xef1c        // Reg274 temp copy
//#define DEBUG_FLAG      0xeffc

#define DSP_INT_STATUS  0x270>>2
#define DSP_INT_CTRL    0x274>>2
#define DSP_INT_CLEAR   0x27c>>2

#define TRAP_CODE_BOOT          0x000
#define TRAP_CODE_BREAK         0x100
#define TRAP_CODE_INT_TRAP      0x200
#define TRAP_CODE_EXT_TRAP      0x300
#define TRAP_CODE_EXT_INTRP     0x400

#define TRAPREGINIT     0x36            // enable Ext Debug, Ext Intr