machine 68020 incdir "!includes:OS3.0" include "exec/types.i" incdir "" DEBUG = 1 AF = 0 * global macros BREAKPOINT MACRO IFNE DEBUG move.l #\1,prg_EmulError ENDIF ENDM * exceptions * no error :) $00 EXC_NOERROR equ $00 * emulation errors $01-$20 EXC_UNIMPL equ $01 ;unimplemented instruction EXC_ILLEGALMEM equ $02 ;illegal memory access EXC_STOPCLOCK equ $03 ;cpu clock stopped * init errors $21-$40 EXC_INVALIDHDR equ $21 EXC_OUTOFMEM equ $22 EXC_ROMFAIL equ $23 EXC_HARDINIT equ $24 EXC_MEMINIT equ $25 EXC_FADEFAIL equ $26 EXC_RESETFAIL equ $27 EXC_SCREENFAIL equ $28 * opcode-generated errors $41-60 EXC_RTI equ $41 * user errors :) $f1-$fe EXC_USERBREAK equ $fe ;user break * unknown errors $-1 EXC_UNKNOWN equ -1 * structures STRUCTURE RMH_RomHeader,0 LONG RMH_HeaderValid STRUCT RMH_ROMTitle,21 BYTE RMH_RomMakeup UBYTE RMH_ROMType UBYTE RMH_RomSize UBYTE RMH_SRAMSize UBYTE RMH_CountryCode UBYTE RMH_License UBYTE RMH_Version UWORD RMH_ChecksumComplement UWORD RMH_Checksum UWORD RMH_VBL_Vector UWORD RMH_RESET_Vector LABEL RMH_SIZEOF * config file STRUCTURE CFG_Config,0 STRUCT CFG_FileRequester,256 LONG CFG_ROMForce LONG CFG_CyberGFX LONG CFG_DirectWrite LONG CFG_Speed LONG CFG_FrameSkip LONG CFG_DisplayID LONG CFG_ForceReset LONG CFG_FastVBL LABEL CFG_EndOfData STRUCT CFG_Reserved,(1024-4)-CFG_EndOfData LONG CFG_IDValue ;for checking if it's a genuine config-file ;should contain 'ACFG'(0x41434647) LABEL CFG_SIZEOF STRUCTURE CPU_65816,0 ULONG CPU_Error ULONG CPU_Mnemonic ULONG CPU_Opcode LABEL CPU_X ;Index Register (X) UBYTE CPU_XH UBYTE CPU_XL LABEL CPU_Y ;Index Register (Y) UBYTE CPU_YH UBYTE CPU_YL LABEL CPU_S ;Stack Pointer (S) UBYTE CPU_SH UBYTE CPU_SL LABEL CPU_A ;Accumulator (A) UBYTE CPU_AH UBYTE CPU_AL LABEL CPU_PC ;Program Counter (PC) UBYTE CPU_PCH UBYTE CPU_PCL LABEL CPU_D ;Direct Register (D) UBYTE CPU_DH UBYTE CPU_DL LABEL CPU_Banks UBYTE CPU_DB ;Data Bank Register (DB) UBYTE CPU_PB ;Program Bank Register (PB) UWORD CPU_P ;Processor Status Register (P) LABEL CPU_SIZEOF STRUCTURE DMA_ChannelInfo,0 BYTE DMA_Type BYTE DMA_HWAddr LABEL DMA_MemAddr BYTE DMA_Pad1 BYTE DMA_Bank BYTE DMA_MemAddrLow BYTE DMA_MemAddrHigh LABEL DMA_Size BYTE DMA_SizeHigh BYTE DMA_SizeLow LABEL DMA_SIZEOF * macro for normal doublewrite registers DOUBLEWRITE MACRO ;what tst.w SHW_\1Strobe(a6) bmi .FirstTime\@ move.b d1,SHW_\1High(a6) move.w #-1,SHW_\1Strobe(a6) rts .FirstTime\@ move.b d1,SHW_\1Low(a6) clr.w SHW_\1Strobe(a6) rts ENDM PLANEWIDTH equ 32 TPLANEWIDTH equ 36 PLANEHEIGHT equ 240 PLANESIZE equ PLANEWIDTH*PLANEHEIGHT STRUCTURE SHW_SnesHardware,0 * This structure contain MOSTLY hardware stuff, * BUT it's useful for more, as it's the only list * that's available at all times * Screen Settings LONG SHW_ScreenEnable LONG SHW_ScreenBrightness LONG SHW_BGTileSize LONG SHW_ScreenMode LONG SHW_LastScreenMode LONG SHW_ScreenSettings LONG SHW_BGEnable LONG SHW_BGMask LONG SHW_DisplayOffCount LONG SHW_ScreenPixelation LONG SHW_ScreenChange ;need to be set when ;screen-updates need to ;occur. This must be ;replaced later when HDMA ;starts messing with me :) WORD SHW_BG1SCAddress WORD SHW_BG1TileAddress WORD SHW_BG1SCSize LABEL SHW_BG1HorizScroll UBYTE SHW_BG1HorizScrollHigh UBYTE SHW_BG1HorizScrollLow WORD SHW_BG1HorizScrollStrobe LABEL SHW_BG1VertScroll UBYTE SHW_BG1VertScrollHigh UBYTE SHW_BG1VertScrollLow WORD SHW_BG1VertScrollStrobe WORD SHW_BG2SCAddress WORD SHW_BG2TileAddress WORD SHW_BG2SCSize LABEL SHW_BG2HorizScroll UBYTE SHW_BG2HorizScrollHigh UBYTE SHW_BG2HorizScrollLow WORD SHW_BG2HorizScrollStrobe LABEL SHW_BG2VertScroll UBYTE SHW_BG2VertScrollHigh UBYTE SHW_BG2VertScrollLow WORD SHW_BG2VertScrollStrobe WORD SHW_BG3SCAddress WORD SHW_BG3TileAddress WORD SHW_BG3SCSize LABEL SHW_BG3HorizScroll UBYTE SHW_BG3HorizScrollHigh UBYTE SHW_BG3HorizScrollLow WORD SHW_BG3HorizScrollStrobe LABEL SHW_BG3VertScroll UBYTE SHW_BG3VertScrollHigh UBYTE SHW_BG3VertScrollLow WORD SHW_BG3VertScrollStrobe WORD SHW_BG4SCAddress WORD SHW_BG4TileAddress WORD SHW_BG4SCSize LABEL SHW_BG4HorizScroll UBYTE SHW_BG4HorizScrollHigh UBYTE SHW_BG4HorizScrollLow WORD SHW_BG4HorizScrollStrobe LABEL SHW_BG4VertScroll UBYTE SHW_BG4VertScrollHigh UBYTE SHW_BG4VertScrollLow WORD SHW_BG4VertScrollStrobe * Interrupts LONG SHW_InterruptOccured * VRAM Transfers LONG SHW_VRAMStoreMode LONG SHW_VRAMDataWaiting LABEL SHW_VRAMAddress UBYTE SHW_VRAMAddrLow UBYTE SHW_VRAMAddrHigh LABEL SHW_VRAMData UBYTE SHW_VRAMDataLow UBYTE SHW_VRAMDataHigh * DMA ;normal DMA is taken care of on spot LONG SHW_HDMAEnabled STRUCT SHW_DMA0,DMA_SIZEOF STRUCT SHW_DMA1,DMA_SIZEOF STRUCT SHW_DMA2,DMA_SIZEOF STRUCT SHW_DMA3,DMA_SIZEOF STRUCT SHW_DMA4,DMA_SIZEOF STRUCT SHW_DMA5,DMA_SIZEOF STRUCT SHW_DMA6,DMA_SIZEOF STRUCT SHW_DMA7,DMA_SIZEOF * APU LONG SHW_APU00Count LONG SHW_APU01Count LONG SHW_APU02Count LONG SHW_APU03Count LONG SHW_APU00Hold LONG SHW_APU01Hold LONG SHW_APU02Hold LONG SHW_APU03Hold LONG SHW_APU00Fix LONG SHW_APU01Fix LONG SHW_APU02Fix LONG SHW_APU03Fix * 16 bit Multiplication / Division LABEL SHW_DivisionResult BYTE SHW_DivisionHigh BYTE SHW_DivisionLow LABEL SHW_MultiplyResult ;also used for div remainder BYTE SHW_MultiplyHigh BYTE SHW_MultiplyLow LABEL SHW_MultiplyOperators BYTE SHW_MultiplyOperatorA BYTE SHW_MultiplyOperatorB * Color Settings LONG SHW_ColourSelect LONG SHW_ColourStore LONG SHW_PaletteChange STRUCT SHW_ColorRAM,256*2 * NMI LONG SHW_ReadNMI LONG SHW_NMIAccess * Joypads LONG SHW_JoypadEnabled LABEL SHW_Joypad1Data UWORD SHW_Joypad1DataHigh UWORD SHW_Joypad1DataLow LABEL SHW_Joypad2Data UWORD SHW_Joypad2DataHigh UWORD SHW_Joypad2DataLow LABEL SHW_Joypad3Data UWORD SHW_Joypad3DataHigh UWORD SHW_Joypad3DataLow LABEL SHW_Joypad4Data UWORD SHW_Joypad4DataHigh UWORD SHW_Joypad4DataLow LABEL SHW_SIZEOF STRUCTURE SCR_RenderBuffer,0 * This structure is filled in and passed * to each renderering-pass of graphics, to * treat the screen correctly LONG SCR_ScreenMode LONG SCR_Pixelation LONG SCR_HorizScroll LONG SCR_VertScroll LONG SCR_ScreenWidth LABEL SCR_SIZEOF * key definitions KEY_Break = $45 ;Escape KEY_BG1Toggle = $01 ;1 KEY_BG2Toggle = $02 ;2 KEY_BG3Toggle = $03 ;3 KEY_BG4Toggle = $04 ;4 KEY_JP1_Up = $4c ;Arrow Up KEY_JP1_Down = $4d ;Arrow Down KEY_JP1_Left = $4f ;Arrow Left KEY_JP1_Right = $4e ;Arrow Right KEY_JP1_A = $20 ;A KEY_JP1_B = $31 ;Z KEY_JP1_X = $21 ;S KEY_JP1_Y = $32 ;X KEY_JP1_TL = $22 ;D KEY_JP1_TR = $33 ;C KEY_JP1_Select = $64 ;Left Alt KEY_JP1_Start = $60 ;Left Shift * Processor Status Register flags BITDEF CPUP,C,0 BITDEF CPUP,Z,1 BITDEF CPUP,I,2 BITDEF CPUP,D,3 BITDEF CPUP,X,4 BITDEF CPUP,M,5 BITDEF CPUP,V,6 BITDEF CPUP,N,7 BITDEF CPUP,E,8 BITDEF CPUP,B,12 BITDEF CPUP,1,13 * libraries public _GfxBase public _IntuitionBase public _GadToolsBase public _SysBase public _ReqToolsBase public _DosBase * Main public ProgramRequest public prg_ForceROM public prg_ROMHeader public prg_FileNameBuffer public ptr_FileRequester public prg_ConfigBuffer public prg_HexTable public prg_ROMHeader * ROM public ROM_GetHeader public ROM_LoadImage public prg_ROMMakeupList public prg_ROMTypeList public prg_ROMSizeList public prg_SRAMSizeList public prg_CountryList public prg_LicenseList public prg_ROMSize * FSelect public FSL_SelectLoadFile public FSL_SelectSaveFile public FSL_SelectFile * 65816 public CPU_EmulateCode public CPU_ExecuteInterrupt * Emulation public EMU_InitEmulation public EMU_RunEmulation public EMU_FinishEmulation public EMU_AllocateBuffers public EMU_FreeBuffers public EMU_InitReset public EMU_GetByte public EMU_SetByte public EMU_GetWord public EMU_SetWord public EMU_Debugger public EMU_GetSNESAddress public EMU_DumpValue public EMU_DumpRegs public prg_EmulError public prg_CPUStructure public ptr_EmulationScreen public ptr_EmulationWindow public ptr_SNESVRam public ptr_SNESRam public ptr_SNESHardware public ptr_SCBuffer public ptr_RenderBufferBG1 public ptr_RenderBufferBG2 public ptr_RenderBufferBG3 public ptr_RenderBufferBG4 public ptr_RenderMask public ptr_RenderBuffer public ptr_DisplayBuffer public prg_FrameSkip public prg_MemoryMap public ptr_SNESRom * hardware public HWR_GetWord public HWR_SetWord public HWR_GetByte public HWR_SetByte public EMU_ScreenClose * graphics public GFX_BuildFade public GFX_UpdatePalette public GFX_RenderScreen public prg_SNESLogoBitmap * debugops public prg_MnemonicTable