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https://github.com/lscharen/iigs-game-engine.git
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Continue fixing code issues; strange relocation error happening
This commit is contained in:
Lucas Scharenbroich
parent
95058fb969
commit
260b2097c2
@ -61,6 +61,7 @@ OKTOROK equ {SPRITE_16X16+79}
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brl Exit ; If we could not allocate a sprite, exit
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:sprite_ok
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sta PlayerID
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brl Exit
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; Add 4 octoroks
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lda #OKTOROK
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@ -40,4 +40,4 @@
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ASM TileStore.s
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KND #$1001 ; Type and Attributes ($11=Static+Bank Relative,$01=Data)
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SNA SPRMASK
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SNA TSTORE
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2
demos/zelda/TileStore.s
Normal file
2
demos/zelda/TileStore.s
Normal file
@ -0,0 +1,2 @@
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TileStore ENT
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ds 65536
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26
src/Core.s
26
src/Core.s
@ -320,16 +320,29 @@ EngineReset
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stz SCBArrayPtr
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stz SCBArrayPtr+2
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stz SpriteBanks
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stz SpriteMap
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stz ActiveSpriteCount
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stz OneSecondCounter
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]step equ 0
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lup 13
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lda #13
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sta tmp15
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stz tmp14
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:loop
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ldx #BlitBuff
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lda #^BlitBuff
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ldy #]step
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ldy tmp14
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jsr BuildBank
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]step equ ]step+4
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--^
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lda tmp14
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clc
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adc #4
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sta tmp14
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dec tmp15
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bne :loop
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rts
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@ -474,6 +487,8 @@ _ReadControl
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pla
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rts
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put blitter/Template.s
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put Memory.s
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put Graphics.s
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put Sprite.s
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@ -486,7 +501,6 @@ _ReadControl
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put blitter/Horz.s
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put blitter/PEISlammer.s
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put blitter/Tables.s
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put blitter/Template.s
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put blitter/Tiles.s
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put blitter/Tiles00000.s ; normal tiles
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put blitter/Tiles00001.s ; dynamic tiles
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@ -184,7 +184,7 @@ _ApplyDirtyTiles
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; Loop again until the list of dirty tiles is empty
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:begin ldx DirtyTileCount
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:begin ldy DirtyTileCount
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bne :loop
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rts
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@ -137,7 +137,7 @@ SetScreenRect sty ScreenHeight ; Save the screen height and
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ldx #0
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ldy #0
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:tsloop
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sta TileStore+TS_SCREEN_ADDR,x
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stal TileStore+TS_SCREEN_ADDR,x
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clc
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adc #4 ; Go to the next tile
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@ -205,7 +205,7 @@ Counter equ tmp3
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tax ; NOTE: Try to rework to use new TileStore2DLookup array
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lda OnScreenAddr
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sta TileStore+TS_SCREEN_ADDR,x
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stal TileStore+TS_SCREEN_ADDR,x
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clc
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adc #4 ; Go to the next tile
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@ -693,22 +693,24 @@ _GetTileStoreOffset0
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; A = tile id
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; X = tile column [0, 40] (41 columns)
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; Y = tile row [0, 25] (26 rows)
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;
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; Registers are not preserved
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_SetTile
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pha
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jsr _GetTileStoreOffset0 ; Get the address of the X,Y tile position
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tay
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tax
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pla
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cmp TileStore+TS_TILE_ID,y ; Only set to dirty if the value changed
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cmpl TileStore+TS_TILE_ID,x ; Only set to dirty if the value changed
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beq :nochange
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sta TileStore+TS_TILE_ID,y ; Value is different, store it.
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stal TileStore+TS_TILE_ID,x ; Value is different, store it.
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jsr _GetTileAddr
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sta TileStore+TS_TILE_ADDR,y ; Committed to drawing this tile, so get the address of the tile in the tiledata bank for later
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stal TileStore+TS_TILE_ADDR,x ; Committed to drawing this tile, so get the address of the tile in the tiledata bank for later
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tya ; Add this tile to the list of dirty tiles to refresh
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jmp _PushDirtyTile ; on the next call to _ApplyTiles
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; txa ; Add this tile to the list of dirty tiles to refresh
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jmp _PushDirtyTileX ; on the next call to _ApplyTiles
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:nochange rts
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@ -735,11 +737,11 @@ _PushDirtyTile
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; alternate entry point if the x-register is already set
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_PushDirtyTileX
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lda TileStore+TS_DIRTY,x
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ldal TileStore+TS_DIRTY,x
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bpl :occupied2
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txa ; any non-negative value will work, this saves work below
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sta TileStore+TS_DIRTY,x ; and is 1 cycle fater than loading a constanct value
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stal TileStore+TS_DIRTY,x ; and is 1 cycle fater than loading a constanct value
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; txa
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ldx DirtyTileCount ; 5
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@ -775,18 +777,18 @@ PopDirtyTile ENT
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rtl
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_PopDirtyTile
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ldx DirtyTileCount
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ldy DirtyTileCount
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bne _PopDirtyTile2
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rts
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_PopDirtyTile2 ; alternate entry point
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dex
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dex
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stx DirtyTileCount ; remove last item from the list
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dey
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dey
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sty DirtyTileCount ; remove last item from the list
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ldy DirtyTiles,x ; load the offset into the Tile Store
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ldx DirtyTiles,y ; load the offset into the Tile Store
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lda #$FFFF
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sta TileStore+TS_DIRTY,y ; clear the occupied backlink
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stal TileStore+TS_DIRTY,x ; clear the occupied backlink
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rts
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; Run through the dirty tile list and render them into the code field
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@ -814,6 +816,6 @@ _ApplyTiles
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; Loop again until the list of dirty tiles is empty
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:begin ldx DirtyTileCount
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:begin ldy DirtyTileCount
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bne :loop
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rts
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