iigs-game-engine/src/GTE.s

; Collection of the EXTernal labels exported by GTE.  This is the closest thing
; we have to an API definition.

EngineStartUp      EXT
EngineShutDown     EXT

SetScreenMode      EXT
ReadControl        EXT

; Low-Level Functions
SetPalette         EXT
GetVBLTicks        EXT

; Tilemap functions
SetBG0XPos         EXT
SetBG0YPos         EXT
SetBG1XPos         EXT
SetBG1YPos         EXT
CopyBG0Tile        EXT
CopyBG1Tile        EXT
CopyTileToDyn      EXT
Render             EXT

; Rotation
ApplyBG1XPosAngle  EXT
ApplyBG1YPosAngle  EXT

CopyPicToField     EXT
CopyBinToField     EXT
CopyBinToBG1       EXT

AddTimer           EXT
RemoveTimer        EXT
DoTimers           EXT

StartScript        EXT
StopScript         EXT

; Sprite functions
AddSprite          EXT
UpdateSprite       EXT

; Direct access to internals
DoScriptSeq        EXT
GetTileAddr        EXT

PushDirtyTile      EXT    ; A = address from GetTileStoreOffset, marks as dirty (will not mark the same tile more than once)
PopDirtyTile       EXT    ; No args, returns Y with tile store offset of the dirty tile
RenderTile         EXT    ; Y = address from GetTileStoreOffset
GetTileStoreOffset EXT    ; X = column, Y = row
TileStore          EXT    ; Tile store internal data structure

DrawTileSprite     EXT    ; X = target address in sprite plane, Y = address in tile bank
EraseTileSprite    EXT    ; X = target address is sprite plane
GetSpriteVBuffAddr EXT    ; X = x-coordinate (0 - 159), Y = y-coordinate (0 - 199). Return in Acc.

; Allocate a full 64K bank
AllocBank          EXT

; Data references
;
; Super Hires line address lookup table for convenience
ScreenAddr         EXT
OneSecondCounter   EXT
BlitBuff           EXT
Refactor GTE Core to be included as an independent Segment in other projects 2021-08-25 14:38:02 +00:00			`; Collection of the EXTernal labels exported by GTE. This is the closest thing`
			`; we have to an API definition.`

Refactor original demo driver to use GTE Core; move functions around 2021-08-26 13:52:43 +00:00			`EngineStartUp EXT`
			`EngineShutDown EXT`
Refactor GTE Core to be included as an independent Segment in other projects 2021-08-25 14:38:02 +00:00
Refactor original demo driver to use GTE Core; move functions around 2021-08-26 13:52:43 +00:00			`SetScreenMode EXT`
			`ReadControl EXT`
Refactor GTE Core to be included as an independent Segment in other projects 2021-08-25 14:38:02 +00:00
Initial Tiled tile animation export support * Tiled tile animations read from TSX files * Hooks for initialization generated by the tiled export tool * Animated tiles implements with dynamic tiles backed by 2KB of direct page space in Bank 00 * Animation resolution limited to 1/60th incremenents TODO * Fix crasher in the _DoScriptSequ timer callback * Fix single-line of garbage on the top line of the dynamic tiles 2021-10-06 12:10:09 +00:00			`; Low-Level Functions`
			`SetPalette EXT`
			`GetVBLTicks EXT`

			`; Tilemap functions`
Refactor original demo driver to use GTE Core; move functions around 2021-08-26 13:52:43 +00:00			`SetBG0XPos EXT`
			`SetBG0YPos EXT`
			`SetBG1XPos EXT`
			`SetBG1YPos EXT`
			`CopyBG0Tile EXT`
			`CopyBG1Tile EXT`
Initial Tiled tile animation export support * Tiled tile animations read from TSX files * Hooks for initialization generated by the tiled export tool * Animated tiles implements with dynamic tiles backed by 2KB of direct page space in Bank 00 * Animation resolution limited to 1/60th incremenents TODO * Fix crasher in the _DoScriptSequ timer callback * Fix single-line of garbage on the top line of the dynamic tiles 2021-10-06 12:10:09 +00:00			`CopyTileToDyn EXT`
Refactor original demo driver to use GTE Core; move functions around 2021-08-26 13:52:43 +00:00			`Render EXT`
Refactor GTE Core to be included as an independent Segment in other projects 2021-08-25 14:38:02 +00:00
Refactor original demo driver to use GTE Core; move functions around 2021-08-26 13:52:43 +00:00			`; Rotation`
			`ApplyBG1XPosAngle EXT`
			`ApplyBG1YPosAngle EXT`
Refactor GTE Core to be included as an independent Segment in other projects 2021-08-25 14:38:02 +00:00
Refactor original demo driver to use GTE Core; move functions around 2021-08-26 13:52:43 +00:00			`CopyPicToField EXT`
			`CopyBinToField EXT`
			`CopyBinToBG1 EXT`

			`AddTimer EXT`
			`RemoveTimer EXT`
			`DoTimers EXT`
Refactor GTE Core to be included as an independent Segment in other projects 2021-08-25 14:38:02 +00:00
Refactor original demo driver to use GTE Core; move functions around 2021-08-26 13:52:43 +00:00			`StartScript EXT`
			`StopScript EXT`
Refactor GTE Core to be included as an independent Segment in other projects 2021-08-25 14:38:02 +00:00
Tile rendering reorganization This significantly simplifies the dispatch process by creating a proper backing store for the tiles. Most values that were calcualted on the fly are now stored as constants in the tile store. Also, all tile updated are run through the dirty tile list which solved a checken-and-egg problem of which order to do sprites vs new tiles and affords a lot of optimizations since tile rendering is deferred and each tile is only drawn at most once per frame. 2021-10-21 13:50:07 +00:00			`; Sprite functions`
			`AddSprite EXT`
Continued bug fixing * Missed an XBA to swap tile command bits into a proper index range * Explicitly track the BASE_ADDR * Fix some register overwriting * Add an UpdateSprite method 2021-10-24 03:31:38 +00:00			`UpdateSprite EXT`
Tile rendering reorganization This significantly simplifies the dispatch process by creating a proper backing store for the tiles. Most values that were calcualted on the fly are now stored as constants in the tile store. Also, all tile updated are run through the dirty tile list which solved a checken-and-egg problem of which order to do sprites vs new tiles and affords a lot of optimizations since tile rendering is deferred and each tile is only drawn at most once per frame. 2021-10-21 13:50:07 +00:00
Fix bcc/bcs typo when initializing timers 2021-10-07 21:38:20 +00:00			`; Direct access to internals`
			`DoScriptSeq EXT`
First cut at a non-trivial overlay. Pallettes and tile indexes still to be fixed 2021-10-11 19:09:38 +00:00			`GetTileAddr EXT`
Fix bcc/bcs typo when initializing timers 2021-10-07 21:38:20 +00:00
WIP: manual sprite rendering showing on screen 2021-10-29 02:41:01 +00:00			`PushDirtyTile EXT ; A = address from GetTileStoreOffset, marks as dirty (will not mark the same tile more than once)`
			`PopDirtyTile EXT ; No args, returns Y with tile store offset of the dirty tile`
			`RenderTile EXT ; Y = address from GetTileStoreOffset`
			`GetTileStoreOffset EXT ; X = column, Y = row`
			`TileStore EXT ; Tile store internal data structure`

			`DrawTileSprite EXT ; X = target address in sprite plane, Y = address in tile bank`
First pass at validating erasing the sprite on update 2021-10-29 03:19:18 +00:00			`EraseTileSprite EXT ; X = target address is sprite plane`
WIP: manual sprite rendering showing on screen 2021-10-29 02:41:01 +00:00			`GetSpriteVBuffAddr EXT ; X = x-coordinate (0 - 159), Y = y-coordinate (0 - 199). Return in Acc.`

Refactor original demo driver to use GTE Core; move functions around 2021-08-26 13:52:43 +00:00			`; Allocate a full 64K bank`
			`AllocBank EXT`

			`; Data references`
			`;`
			`; Super Hires line address lookup table for convenience`
			`ScreenAddr EXT`
			`OneSecondCounter EXT`
			`BlitBuff EXT`