add loader
This commit is contained in:
David Voswinkel
328
snes/loader/routines/variables.asm
Normal file
328
snes/loader/routines/variables.asm
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@@ -0,0 +1,328 @@
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.ENUM $00 ;1byte direct page variables for kernel and game mechanics
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TempBuffer ds 20
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CurrentEvent db
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FrameCounterLo db
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FrameCounterHi db
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SetIni db
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ScreenMode db
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MainScreen db
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SubScreen db
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ScreenBrightness db
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BGTilesVram12 db
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BGTilesVram34 db
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BG1TilemapVram db
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BG2TilemapVram db
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BG3TilemapVram db
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BG4TilemapVram db
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SpriteTileOffsetVram dw
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ObjSel db
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BG1HOfLo db
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BG1HOfHi db
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BG1VOfLo db
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BG1VOfHi db
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BG2HOfLo db
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BG2HOfHi db
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BG2VOfLo db
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BG2VOfHi db
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HdmaFlags db
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HdmaPause db ;if msb is set, don't initiate further hdma transfers. this is useful when the rom hdma is trying to read from isnt present atm.
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ThreeBytePointerLo db
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ThreeBytePointerHi db
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ThreeBytePointerBank db
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ThreeBytePointerLo2 db
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ThreeBytePointerHi2 db
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ThreeBytePointerBank2 db
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BrightnessSpeed db
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LastFrameLo db
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LastFrameHi db
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CGWsel db
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CgadsubConfig db
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FixedColourR db
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FixedColourG db
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FixedColourB db
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InterruptEnableFlags db
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IrqRoutineNumber db
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IrqRoutineNumberBuffer db ;backup in case multiple irqs are executed per frame. nmi writes this number back to irq number every frame
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IrqVCounter dw
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IrqHCounter dw
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W12SEL db
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W34SEL db
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WOBJSEL db
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W1L db
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W1R db
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W2L db
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W2R db
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WBGLOG db
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WOBJLOG db
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WMS db
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WSS db
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Mosaic db
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BGTilesVram2 dw
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Bg3Status db
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PrintStringThreeBytePointerLo db
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PrintStringThreeBytePointerHi db
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PrintStringThreeBytePointerBank db
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VramBg1Tilemap dw
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VramBg2Tilemap dw
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VramBg3Tilemap dw
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VramBg4Tilemap dw
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VramBg1Tiles dw
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VramBg2Tiles dw
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VramBg3Tiles dw
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VramBg4Tiles dw
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SetBGThreeBytePointerLo db
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SetBGThreeBytePointerHi db
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SetBGThreeBytePointerBank db
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NMIOamUploadFlag db
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NMIPaletteUploadFlag db ;refresh palette during nmi?
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NMIBg1UploadFlag db ;refresh bg1 tilemap during nmi?
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NMIBg2UploadFlag db
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NMIBg3UploadFlag db ;UploadBg3Map db ;if this is not zero, upload tilemap to bg3
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CurrentMapNumber db ;number of currently loaded map
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CurrentMapPointer ds 3 ;24bit pointer to current map file
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CurrentColMapPointer ds 3 ;24 bit pointer to current collision map
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BgScrollCounterX db ;ranges from 0-7 inside one tile
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BgScrollCounterY db
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BgMapCurrentPositionX db ;current upper left tile on screen
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BgMapCurrentPositionY db
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ScreenPixelPositionX dw ;exact pixel position of upper left border for sprite position calculation
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ScreenPixelPositionY dw ;exact pixel position of upper left border for sprite position calculation
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BgScrollRowUploadDisplace db ;number of tiles to add/substract when uploading tilerows. this gets added to current position in map depending on the scrolling direction.(scroll right: add 28/scroll left: substract 1)
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BgScrollTilemapRowUploadDisplaceX db ;number of tiles to add/substract when uploading tilerows. this gets added to current position in map depending on the scrolling direction.(scroll right: add 28/scroll left: substract 1)
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BgScrollTilemapRowUploadDisplaceY db ;number of tiles to add/substract when uploading tilerows. this gets added to current position in map depending on the scrolling direction.(scroll right: add 28/scroll left: substract 1)
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BgScrollOffsetPointerTilesX db ;pointer to current vertical column that holds the leftmost tiles onscreen(goes from 0-27)
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BgScrollOffsetPointerTilesY db
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BgScrollOffsetPointerTilemapX db ;pointer to current vertical column that holds the leftmost tiles onscreen for tilemap (goes from 0-32)
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BgScrollOffsetPointerTilemapY db
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BgScrollTileSourcePointer ds 3 ;pointer to first tile of tileline to be uplodaded
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DmaFifoPointer dw ;relative pointer to current free entry in buffer
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DmaFifoPointerIrq dw
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DmaFifoSourcePointerLo dw
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DmaFifoSourcePointerBa db
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DmaFifoOverhang dw
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DmaFifoTotalBytesTransferred dw ;used to guesstimate how much time we have left for transfers
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ObjectListPointer dw ;pointer to next free object in object list
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ObjectListPointerCurrent dw ;pointer to current object in object list, used to set direct register
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CurrentObjectNumber db ;number of currently selected object in list
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OamBufferPointer dw ;pointer to current sprite in oam buffer
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OamZsortBufferPointer dw ;pointer to current sprite in oam zsort buffer
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OamZsortSpriteNumber db ;number of sprites to sort
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OamAniListStraightRepeatFlag dw
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FocusScreenFlags db ;flags for focus
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;bit0=enable focus on object
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FocusScreenObject db ;number of object in object list to focus to
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FocusScreenSpline db ;number of preset table to use for scrolling depending on distance to object(linear,sine,exp etc)
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FocusScreenXWait db
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FocusScreenYWait db
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CollisionPixelX dw
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CollisionPixelY dw
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CollisionTemp dw
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PalTemp db ;used for object subroutine
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ExitCollisionPointer dw ;bits0-14 contain number of exit. old:;bits0-14 contain pointer to an entry in the exit list. if bit15 is set, this exit has been hit and needs to be procesed.
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R1 db ;random number generator buffers
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R2 db
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R3 db
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R4 db
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ColObjListPointer dw
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HdmaListPointer dw
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VwfFontPointerLo ds 3
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SpcTempBuffer ds 8 ;temp buffer for spc stuff
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SpcCurrentStreamSet db
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SpcHandlerState db
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SpcHandlerArgument0 db
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SpcHandlerArgument1 db
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SpcHandlerArgument2 db
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SpcCmdFifoStart db
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SpcCmdFifoEnd db
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PtPlayerDataPointerLo db ;assumes dreg: $0000
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PtPlayerDataPointerHi db ;assumes dreg: $0000
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PtPlayerDataPointerBa db ;assumes dreg: $0000
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PtPlayerCurrentSong db ;assumes dreg: $0000
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PtPlayerCurrentSamplePack db
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PtPlayerCurrentSoundEffect db
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PtPlayerSmplBufferPosLo db ;not needed at all
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PtPlayerSmplBufferPosHi db
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SpcUploadedFlag db ;msb set=song upload complete and playing. bit6 set=sample pack uploaded
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VideoHandlerState db
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CheckJoypadMode db ;0=1 player, 1=8 players, 2=instruments + 1 joypad
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FontSelector db
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FixedStringLength db
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PrintStringPalette db
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MenuFileThreeBytePointerLo db
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MenuFileThreeBytePointerHi db
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MenuFileThreeBytePointerBank db
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MenuRowsThreeBytePointerLo db
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MenuRowsThreeBytePointerHi db
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MenuRowsThreeBytePointerBank db
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MenuRowsThreeByteOptionPointerLo db
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MenuRowsThreeByteOptionPointerHi db
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MenuRowsThreeByteOptionPointerBank db
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MenuRowsThreeByteCodePointerLo db
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MenuRowsThreeByteCodePointerHi db
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MenuRowsThreeByteCodePointerBank db
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LoadMenuInitialOffset dw
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LoadMenuInitialOptionOffset dw
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LoadMenuVerticalSpacing dw
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LoadMenuNumberOfRows db
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LoadMenuCurrentRow db
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LoadMenuStringPosLo db
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LoadMenuStringPosHi db
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LoadMenuPalUnselSel db
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LoadMenuDoInit db
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BattleSubroutine db
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HdmaListCounter db ;counter used by hdma handler to switch through channels
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TempBufferIrq ds 8 ;Temporary Buffer for irq routines
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BattleMusicState db
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CurrentTablistPointer ds 3
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.ENDE
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.ENUM $200 ;2-byte adresses for game status stuff
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TempBufferTest ds 4
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Hdma3dScrollCountV db ;amount of lines to wait before hdma table
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CurrentBattleFile db
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MapStartPosX db ;map start position set by external routine
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MapStartPosY db
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MapSizeX db ;/must not be seperated cause they may be written to both at the same time in word-mode
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MapSizeY db ;\
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BGMapStartPosX db ;start position for bg upload(may differ from sprite location if near a border)
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BGMapStartPosY db
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CurrentStringTarget db ;current position in bg1 tilemap to write to, 2 bytes
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CurrentStringTargetHi db
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FixedColourRsave db
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FixedColourGsave db
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FixedColourBsave db
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CpuUsageScanline db
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SpcStreamVolume db
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SpcSEVolume db
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SpcSEPitch db
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SpcSongSpeed db ;default $a0
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SpcSongChMask db ;default $0f
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SpcReportType db ;0=none 1=timecode 2=channel-levels(vol out) 3=special mod command
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SpcCmdFifo ds 64
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MessageDeleteCounter dw ;inactive when zero, delete message when 1(then set zero), decrease each frame when not 0 or 1
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HdmaFadeInOutState db ;bit7set=fade in/bit7clear=fade out,bit6set=done fading bit0-5=current state in LUT for window and mosiac size
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MainCharaObjectNumber db
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MainCharaXPos dw
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MainCharaYPos dw
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ExitMapTarget dw ;target map
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ExitXTarget dw ;target x-pos on map
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ExitYTarget dw ;target y-pos on map
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Pseudo3dScrollUpdateFlag db ;if this isn't zero, update scroll table
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CurrentLevel dw
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PlayerState db ;current mode of player characters. 0=active battle 1=player select menu(start sitting. when start pressed for that player, switch to subroutine that is similar to battle, but without being able to fight) 2=results screen.
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PlayersPresentFlags db ;flags to signalize players connected.
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ActivePlayers db ;number of alive players
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WinningPlayer db ;number of player that has won the match. $ff=invalid
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IrqBrightnessIncDec db ;just a flag. bit0 set=increase. bit1 clear=decrease. bit8=ack/done
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BrightnessEventBuffer db ;buffer event routine to jum p to after brightness inc/dec
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SpcStreamFrame dw
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SpcSoundEffectFlipFlag dw ;flag alternating between each sound effect upload so that spc doesnt trigger the same one twice.
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BattleFinished db ;$80 if battle is finished
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IntroScene3ScrollPoint dw
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VideoFrames db
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VideoFrameRate dw ;ANDed with framecounter. 0=60hz, 1=30hz, 3=15hz etc.
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CurrentVideo db
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CurrentVideoFrame db
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PlayerSelectScrollCounter dw
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WinningPlayerPointer dw
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RandomLevelCounter db ;msb=shuffle direction. bits0-3 level number
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RandomStreamCounter db ;msb=shuffle direction. bits0-3 Streamset number
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SpecialReportOld db
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HdmaScrollPointerBuffer dw
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GravityCutOffYPos dw ;y-pos of object(with 4bit precision) that triggers delete if bigger and gravity affected
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GravObjectCounter db ;counter of particle/gravity objects to create to prevent slowdown and such
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MaxGravObjCount db ;max allowed particles per frame. dont create new ones if exceeded
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EventJumper db ;variable to select which event to jump to in debug menu
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CollisionObjPointer dw ;pointer to object that just has collided with calling obj
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Reg3000WriteVar db
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VIrqCounter dw
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ExtIrqCounter dw
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CartChecksum db
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.ENDE
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.ENUM $7e0300
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JoyPort1Data1Io0Buffer ds 4
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JoyPort1Data2Io0Buffer ds 4
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JoyPort2Data1Io0Buffer ds 4
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JoyPort2Data2Io0Buffer ds 4
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JoyPort1Data1Io1Buffer ds 4
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JoyPort1Data2Io1Buffer ds 4
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JoyPort2Data1Io1Buffer ds 4
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JoyPort2Data2Io1Buffer ds 4
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VectorAngleSMCode ds 9 ;8 inc/decs per frame + rtl
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LoadMenuStringBuffer ds 9
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PrintStringBuffer0 ds 16
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;.ende
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;.ENUM $7e0300
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JoyPortBuffer ds 16 ;8 joypads max, word entries.
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;0=port1 joy 1
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;2=port1 joy 2
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;4=port1 joy 3
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;6=port1 joy 4
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;8=port2 joy 1
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;a=port2 joy 2
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;c=port2 joy 3
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;e=port2 joy 4
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JoyPortBufferOld ds 16
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JoyPortBufferTrigger ds 16
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;joypad buttons:
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;15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
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;b y se st U D L R a x l r 0 0 0 0
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PaletteBuffer ds $0200 ;bg3 palettes: buffer $0-$20 (4 different 4-color palettes, for text
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Bg1MapBuffer ds $1000
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Bg2MapBuffer ds $800
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Bg3MapBuffer ds $0800
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Bg4MapBuffer ds $1
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OamZSortBuffer ds $0500 ;256 entries, each 6 bytes
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OamZSortObjList ds 128*2 ;prioritized list of objects that need priority processing(2 byte relative pointers)
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;ZSortOamPriorityBuffer ds $0040
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OamBuffer ds $0200
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OamPriorityBuffer ds $0020
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DmaFifoBuffer ds $1000 ;DmaFifoEntryLength*256
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ObjectList ds $0800 ;32 entries, each 32 bytes
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ExitList ds $0080 ;16 entries, each 8 bytes
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ColObjList ds $00c0 ;32 entries, each 4 bytes
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HdmaBuffer ds $0340
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HdmaBuffer1 ds $0340
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HdmaBuffer2 ds $0340
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HdmaBuffer3 ds $0340
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HdmaBuffer4 ds $0340
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HdmaBuffer5 ds $0340
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HdmaDataBuffer1 ds $0400
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HdmaSpcBuffer ds 200 ;streaming table, uses channel 7
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TextBoxMenuBuffer ds $0040 ;8 entries * 8
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SpcReportBuffer ds 16 ;8 entries, each 2 bytes
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;0=none
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;2=timecode
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;4=channel levels
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;6=special mod cmd
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Hdma3dScrollBuffer ds 400 ;80 entries, each 5 bytes
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WinnerArray ds 8*1
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.ENDE
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