diff --git a/.gitignore b/.gitignore
index 3fd0032..b1a72d6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,4 +4,5 @@ emu
*_Output.txt
src/GTETestApp
*.2mg
-Tool160.SHK
\ No newline at end of file
+Tool160.SHK
+src/Tool160
\ No newline at end of file
diff --git a/demos/tf4/.gitignore b/demos/tf4/.gitignore
new file mode 100644
index 0000000..6289069
--- /dev/null
+++ b/demos/tf4/.gitignore
@@ -0,0 +1 @@
+GTETF4
\ No newline at end of file
diff --git a/demos/tf4/App.Main.s b/demos/tf4/App.Main.s
new file mode 100644
index 0000000..0a1ac40
--- /dev/null
+++ b/demos/tf4/App.Main.s
@@ -0,0 +1,96 @@
+; Test driver to exercise graphics routines.
+
+ REL
+ DSK MAINSEG
+
+ use Locator.Macs
+ use Load.Macs
+ use Mem.Macs
+ use Misc.Macs
+ use Util.Macs
+ use EDS.GSOS.Macs
+ use GTE.Macs
+
+ mx %00
+
+tiledata EXT ; tileset buffer
+;TileSetPalette EXT
+
+; Keycodes
+LEFT_ARROW equ $08
+RIGHT_ARROW equ $15
+UP_ARROW equ $0B
+DOWN_ARROW equ $0A
+
+; Direct page space
+MyUserId equ 0
+BankLoad equ 2
+StartX equ 4
+StartY equ 6
+TileMapWidth equ 8
+TileMapHeight equ 10
+ScreenWidth equ 12
+ScreenHeight equ 14
+MaxGlobalX equ 16
+MaxGlobalY equ 18
+MaxBG0X equ 20
+MaxBG0Y equ 22
+OldOneSecondCounter equ 26
+appTmp0 equ 28
+
+ phk
+ plb
+
+ sta MyUserId ; GS/OS passes the memory manager user ID for the application into the program
+ tdc
+ sta MyDirectPage ; Keep a copy for the overlay callback
+
+ _MTStartUp ; GTE requires the miscellaneous toolset to be running
+
+ lda #ENGINE_MODE_USER_TOOL+ENGINE_MODE_TWO_LAYER
+ jsr GTEStartUp ; Load and install the GTE User Tool
+
+; Initialize local variables
+
+; pea $0000
+; pea #^TileSetPalette
+; pea #TileSetPalette
+; _GTESetPalette
+
+; Set up our level data
+
+
+; Set up a very specific test. First, we draw a sprite into the sprite plane, and then
+; leave it alone. We are just testing the ability to merge sprite plane data into
+; the play field tiles.
+EvtLoop
+ pha
+ _GTEReadControl
+ pla
+
+ jsr HandleKeys ; Do the generic key handlers
+
+ pea RENDER_PER_SCANLINE ; Scanline rendering
+ _GTERender
+
+ brl EvtLoop
+
+; Exit code
+Exit
+ _GTEShutDown
+Quit
+ _QuitGS qtRec
+
+ bcs Fatal
+Fatal brk $00
+
+qtRec adrl $0000
+ da $00
+
+; Color palette
+MyDirectPage ds 2
+
+; Stub
+SetLimits rts
+
+ PUT ../kfest-2022/StartUp.s
diff --git a/demos/tf4/App.s b/demos/tf4/App.s
new file mode 100644
index 0000000..8e8c7c6
--- /dev/null
+++ b/demos/tf4/App.s
@@ -0,0 +1,10 @@
+; Thunder Force IV Demo
+
+ TYP $B3 ; S16 file
+ DSK GTETF4
+ XPL
+
+; Segment #1 -- Main execution block
+
+ ASM App.Main.s
+ SNA Main
diff --git a/demos/tf4/GTETF4 b/demos/tf4/GTETF4
new file mode 100644
index 0000000..1fa8df1
Binary files /dev/null and b/demos/tf4/GTETF4 differ
diff --git a/demos/tf4/README.txt b/demos/tf4/README.txt
new file mode 100644
index 0000000..0894796
--- /dev/null
+++ b/demos/tf4/README.txt
@@ -0,0 +1,3 @@
+Basic scroller with SMB background
+ - q to quit; arrows to scroll, numbers to select screen size
+ - make sure Overlay is present
\ No newline at end of file
diff --git a/demos/tf4/_FileInformation.txt b/demos/tf4/_FileInformation.txt
new file mode 100644
index 0000000..8d18d0b
--- /dev/null
+++ b/demos/tf4/_FileInformation.txt
@@ -0,0 +1,2 @@
+GTEDemo1=Type(B3),AuxType(0000),VersionCreate(70),MinVersion(BE),Access(E3),FolderInfo1(000000000000000000000000000000000000),FolderInfo2(000000000000000000000000000000000000)
+GTETF4=Type(B3),AuxType(0000),VersionCreate(70),MinVersion(BE),Access(E3),FolderInfo1(000000000000000000000000000000000000),FolderInfo2(000000000000000000000000000000000000)
diff --git a/demos/tf4/assets/tiled/Overworld.tsx b/demos/tf4/assets/tiled/Overworld.tsx
new file mode 100644
index 0000000..4753af2
--- /dev/null
+++ b/demos/tf4/assets/tiled/Overworld.tsx
@@ -0,0 +1,37 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/demos/tf4/assets/tiled/world_1-1.json b/demos/tf4/assets/tiled/world_1-1.json
new file mode 100644
index 0000000..9f73813
--- /dev/null
+++ b/demos/tf4/assets/tiled/world_1-1.json
@@ -0,0 +1,32 @@
+{ "compressionlevel":-1,
+ "height":30,
+ "infinite":false,
+ "layers":[
+ {
+ "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 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+ "height":30,
+ "id":1,
+ "name":"App.TileMapBG0",
+ "opacity":1,
+ "type":"tilelayer",
+ "visible":true,
+ "width":416,
+ "x":0,
+ "y":0
+ }],
+ "nextlayerid":4,
+ "nextobjectid":2,
+ "orientation":"orthogonal",
+ "renderorder":"right-down",
+ "tiledversion":"1.7.2",
+ "tileheight":8,
+ "tilesets":[
+ {
+ "firstgid":1,
+ "source":"Overworld.tsx"
+ }],
+ "tilewidth":8,
+ "type":"map",
+ "version":"1.6",
+ "width":416
+}
\ No newline at end of file
diff --git a/demos/tf4/assets/tiled/world_1-1.tmx b/demos/tf4/assets/tiled/world_1-1.tmx
new file mode 100644
index 0000000..693a851
--- /dev/null
+++ b/demos/tf4/assets/tiled/world_1-1.tmx
@@ -0,0 +1,41 @@
+
+
diff --git a/demos/tf4/assets/tilesets/smb-256-128-4bpp.png b/demos/tf4/assets/tilesets/smb-256-128-4bpp.png
new file mode 100644
index 0000000..82de535
Binary files /dev/null and b/demos/tf4/assets/tilesets/smb-256-128-4bpp.png differ
diff --git a/demos/tf4/build-image.bat b/demos/tf4/build-image.bat
new file mode 100644
index 0000000..720514f
--- /dev/null
+++ b/demos/tf4/build-image.bat
@@ -0,0 +1,17 @@
+echo off
+
+REM Copy all of the assets into the ProDOS image for emulator testing
+REM
+REM Pass the path of the Cadius tool as the first argument (%1)
+
+set CADIUS="%1"
+set IMAGE="..\\..\\..\\emu\\Target.2mg"
+set FOLDER="/GTEDEV/TF4"
+
+REM Cadius does not overwrite files, so clear the root folder first
+%CADIUS% DELETEFOLDER %IMAGE% %FOLDER%
+%CADIUS% CREATEFOLDER %IMAGE% %FOLDER%
+
+REM Now copy files and folders as needed
+%CADIUS% ADDFILE %IMAGE% %FOLDER% .\GTETF4
+%CADIUS% ADDFILE %IMAGE% %FOLDER% ..\src\Tool160
diff --git a/demos/tf4/package.json b/demos/tf4/package.json
new file mode 100644
index 0000000..040b62c
--- /dev/null
+++ b/demos/tf4/package.json
@@ -0,0 +1,44 @@
+{
+ "name": "tf4-demo",
+ "version": "1.0.0",
+ "description": "",
+ "main": "index.js",
+ "config": {
+ "merlin32": "C:\\Programs\\IIgsXDev\\bin\\Merlin32-1.1.10.exe",
+ "cadius": "C:\\Programs\\IIgsXDev\\bin\\Cadius.exe",
+ "gsport": "C:\\Programs\\gsport\\gsport_0.31\\GSPort.exe",
+ "macros": "../../macros",
+ "crossrunner": "C:\\Programs\\Crossrunner\\Crossrunner.exe",
+ "png2iigs": "../../tools/png2iigs.js",
+ "tiled2iigs": "../../tools/tiled2iigs.js"
+ },
+ "scripts": {
+ "test": "npm run build && npm run build:image && npm run gsport",
+ "gsport": "%npm_package_config_gsport%",
+ "debug": "%npm_package_config_crossrunner% GTETestSprites -Source GTETestSprites_S02_MAINSEG_Output.txt -Debug -CompatibilityLayer",
+ "build:all": "npm run build:tiles && npm run build:map && npm run build:tool && npm run build:sys16 && npm run build:image",
+ "build:map": "node %npm_package_config_tiled2iigs% ./assets/tiled/world_1-1.json --empty-tile 33 --no-gen-tiles --output-dir ./gen",
+ "build:map:masked": "node %npm_package_config_tiled2iigs% ./assets/tiled/world_1-1.json --force-masked --empty-tile 33 --no-gen-tiles --output-dir ./gen",
+ "build:tiles": "node %npm_package_config_png2iigs% ./assets/tilesets/smb-256-128-4bpp.png --max-tiles 360 --as-tile-data --transparent-color FF00FF --background-color 6B8CFF --verbose > ./gen/App.TileSet.s",
+ "build:sys16": "%npm_package_config_merlin32% -V %npm_package_config_macros% App.s",
+ "build": "npm run build:tool && npm run build:sys16",
+ "build:tool": "%npm_package_config_merlin32% -V %npm_package_config_macros% ../../src/Master.s",
+ "build:image": "build-image.bat %npm_package_config_cadius%"
+ },
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/lscharen/iigs-game-engine.git"
+ },
+ "author": "Lucas Scharenbroich",
+ "license": "Apache-2.0",
+ "bugs": {
+ "url": "https://github.com/lscharen/iigs-game-engine/issues"
+ },
+ "homepage": "https://github.com/lscharen/iigs-game-engine#readme",
+ "devDependencies": {
+ "pngjs": "^6.0.0",
+ "string-builder": "^0.1.8",
+ "watch": "latest",
+ "xml2json": "^0.12.0"
+ }
+}
diff --git a/macros/GTE.Macs.s b/macros/GTE.Macs.s
index 4313f90..2ce3eb8 100644
--- a/macros/GTE.Macs.s
+++ b/macros/GTE.Macs.s
@@ -153,6 +153,8 @@ RENDER_ALT_BG1 equ $0001
RENDER_BG1_HORZ_OFFSET equ $0002
RENDER_BG1_VERT_OFFSET equ $0004
RENDER_BG1_ROTATION equ $0008
+RENDER_PER_SCANLINE equ $0010
+
; Tile constants
; TILE_RESERVED_BIT equ $8000
diff --git a/src/Defs.s b/src/Defs.s
index 9457df8..6b2e20b 100644
--- a/src/Defs.s
+++ b/src/Defs.s
@@ -173,6 +173,7 @@ RENDER_ALT_BG1 equ $0001
RENDER_BG1_HORZ_OFFSET equ $0002
RENDER_BG1_VERT_OFFSET equ $0004
RENDER_BG1_ROTATION equ $0008
+RENDER_PER_SCANLINE equ $0010
; DirtyBits definitions
DIRTY_BIT_BG0_X equ $0001
@@ -268,5 +269,8 @@ Overlays EXT
BG1YCache EXT
ScalingTables EXT
+StartXMod164Arr EXT
+LastPatchOffsetArr EXT
+
; Tool error codes
NO_TIMERS_AVAILABLE equ 10
diff --git a/src/FastCopies.s b/src/FastCopies.s
new file mode 100644
index 0000000..e401540
--- /dev/null
+++ b/src/FastCopies.s
@@ -0,0 +1,271 @@
+; Large, unrolled loops for setting values in the code field that would be used by the Horz.s
+; and Vert.s code.
+;
+; The utility of these functions is that they do not need to do any sort of bank switching and
+; can update all of the play field lines in a single call. The downside is that they take up
+; significantly more space, need large auxiliary tables, and must be patched after the code
+; field memory is allocated.
+;
+; Probably still worth it....
+
+BlitBuff EXT
+
+; Patch the fast copy routines with the allocated memory addresses
+InitFastCopies
+
+; Fist, patch the cttc routine
+
+ ldy #0
+ ldx #0
+
+:loop1
+ lda BlitBuff+2,y ; Get the bank of each in the accumulatow low byte
+
+ sep #$20
+]line equ 0
+ lup 16
+ stal cttc_start+{]line*7}+4,x
+ stal cttc_start+{{]line+208}*7}+4,x
+]line equ ]line+1
+ --^
+ rep #$20
+
+ txa
+ clc
+ adc #7*16
+ tax
+
+ tya
+ clc
+ adc #4
+ tay
+
+ cpy #13*4
+ bcs *+5
+ brl :loop1
+
+; Next, patch the two store routines
+
+ ldy #0
+ ldx #0
+
+:loop2
+ lda BlitBuff+2,y ; Get the bank of each in the accumulatow low byte
+
+ sep #$20
+]line equ 0
+ lup 16
+ stal store_start+{]line*4}+1,x
+ stal store_start+{{]line+208}*4}+1,x
+]line equ ]line+1
+ --^
+ rep #$20
+
+ txa
+ clc
+ adc #4*16
+ tax
+
+ tya
+ clc
+ adc #4
+ tay
+
+ cpy #13*4
+ bcs *+5
+ brl :loop2
+
+ rtl
+
+
+; Function to load data from an array and store in the code field. Assume that the
+; bank register is already set to the bank of the srcAddr data
+srcAddr equ 0
+destOffset equ 2
+
+CopyTblToCode
+ ldal entry_7,x ; This is the entry point
+ stal cttc_jump+1
+
+ txa ; Set the Y register to srcAddr - 2*start to compensate for the
+ eor #$FFFF ; offset in the code. This does mean that the array we are copying
+ sec ; cannot by near the beginning of the bank
+ adc srcAddr
+ tyx ; put the ending offset in X
+ tay
+
+ ldal entry_7,x
+ tax
+ lda #$0060
+ stal {cttc_start&$FF0000}+3,x ; patch at the next STAL instruction because the high byte is always zero
+
+ ldx destOffset ; byte offset within each line
+cttc_jump jsr $0000
+
+ lda #$009F ; restore the STAL opcode
+ stal {cttc_start&$FF0000}+3,x
+
+ rtl
+
+; Define the 416 addresses for each copy
+entry_7
+]line equ 0
+ lup 416
+ da cttc_start+{]line*7}
+]line equ ]line+1
+ --^
+
+; Generate the code that performs the copy.
+cttc_unit mac
+ lda: {]1*32}+{]2*2},y
+ stal $000000+{]2*$1000},x
+ <<<
+
+cttc_start
+]bank equ 0
+ lup 26
+ cttc_unit ]bank;0
+ cttc_unit ]bank;1
+ cttc_unit ]bank;2
+ cttc_unit ]bank;3
+ cttc_unit ]bank;4
+ cttc_unit ]bank;5
+ cttc_unit ]bank;6
+ cttc_unit ]bank;7
+ cttc_unit ]bank;8
+ cttc_unit ]bank;9
+ cttc_unit ]bank;10
+ cttc_unit ]bank;11
+ cttc_unit ]bank;12
+ cttc_unit ]bank;13
+ cttc_unit ]bank;14
+ cttc_unit ]bank;15
+]bank equ ]bank+1
+ --^
+ rts
+
+Store8Bits
+ txa
+ asl
+ adc #store_start
+ stal s8b_jump+1
+
+ tya
+ asl
+ tax
+ lda #$0060
+ stal {store_start&$FF0000},x
+
+ ldx destOffset ; byte offset within each line
+ lda srcAddr
+ sep #$20
+s8b_jump jsr $0000
+
+ lda #$9F ; restore the STAL opcode
+ stal {store_start&$FF0000},x
+ rep #$20
+
+ rtl
+
+Store16Bits
+ txa
+ asl
+ adc #store_start
+ stal s16b_jump+1
+
+ tya
+ asl
+ tax
+ lda #$0060
+ stal {store_start&$FF0000},x
+
+ ldx destOffset ; byte offset within each line
+ lda srcAddr
+s16b_jump jsr $0000
+
+ lda #$009F ; restore the STAL opcode
+ stal {store_start&$FF0000},x
+ rtl
+
+store_start
+ lup 26
+ stal $000000,x
+ stal $001000,x
+ stal $002000,x
+ stal $003000,x
+ stal $004000,x
+ stal $005000,x
+ stal $006000,x
+ stal $007000,x
+ stal $008000,x
+ stal $009000,x
+ stal $00A000,x
+ stal $00B000,x
+ stal $00C000,x
+ stal $00D000,x
+ stal $00E000,x
+ stal $00F000,x
+ --^
+ rts
+
+
+CodeCopy8
+ txa
+ asl
+ adc #store_start
+ stal cc8_jump+1
+
+ tya
+ asl
+ tax
+ lda #$0060
+ stal {store8_start&$FF0000},x
+
+ ldx destOffset ; byte offset within each line
+ lda srcAddr
+cc8_jump jsr $0000
+
+ lda #$009F ; restore the STAL opcode
+ stal {store8_start&$FF0000},x
+ rtl
+
+store8_start
+ lup 26
+ pea $0000
+ plb
+ plb
+
+ lda $0000,y
+ stal $000000,x
+ lda $0000,y
+ stal $001000,x
+ lda $0000,y
+ stal $002000,x
+ lda $0000,y
+ stal $003000,x
+ lda $0000,y
+ stal $004000,x
+ lda $0000,y
+ stal $005000,x
+ lda $0000,y
+ stal $006000,x
+ lda $0000,y
+ stal $007000,x
+ lda $0000,y
+ stal $008000,x
+ lda $0000,y
+ stal $009000,x
+ lda $0000,y
+ stal $00A000,x
+ lda $0000,y
+ stal $00B000,x
+ lda $0000,y
+ stal $00C000,x
+ lda $C000,y
+ stal $00D000,x
+ lda $E000,y
+ stal $00E000,x
+ lda $F000,y
+ stal $00F000,x
+ --^
+ rts
\ No newline at end of file
diff --git a/src/Master.s b/src/Master.s
index 637d4a5..f4b7581 100644
--- a/src/Master.s
+++ b/src/Master.s
@@ -43,3 +43,10 @@
KND #$1001 ; Type and Attributes ($11=Static+Bank Relative,$01=Data)
ALI BANK
SNA ROTDATA
+
+; Additional code
+
+ ASM FastCopies.s
+ KND #$1001 ; Type and Attributes ($11=Static+Bank Relative,$01=Data)
+ ALI BANK
+ SNA FASTCPY
diff --git a/src/Render.s b/src/Render.s
index 1836d9a..13eb5bd 100644
--- a/src/Render.s
+++ b/src/Render.s
@@ -32,6 +32,14 @@ _Render
stz SpriteRemovedFlag ; If we remove a sprite, then we need to flag a rebuild for the next frame
+; If we are doing per-scanline rendering, use the alternate renderer
+
+ lda #RENDER_PER_SCANLINE
+ bit RenderFlags
+ beq *+5
+ jmp _RenderScanlines ; Do the scanline-based renderer
+
+
jsr _ApplyBG0YPos ; Set stack addresses for the virtual lines to the physical screen
lda #RENDER_BG1_ROTATION
@@ -147,6 +155,96 @@ _DoOverlay
:disp jsl $000000
rts
+; Use the per-scanline tables to set the screen. This is really meant to be used without the built-in tilemap
+; support and is more of a low-level way to control the background rendering
+_RenderScanlines
+
+ jsr _ApplyBG0YPos ; Set stack addresses for the virtual lines to the physical screen
+; jsr _ApplyBG1YPos ; Set the y-register values of the blitter
+
+; _ApplyBG0Xpos need to be split because we have to set the offsets, then draw in any updated tiles, and
+; finally patch out the code field. Right now, the BRA operand is getting overwritten by tile data.
+
+ jsr _ApplyBG0XPosPre
+; jsr _ApplyBG1XPosPre
+
+; jsr _RenderSprites ; Once the BG0 X and Y positions are committed, update sprite data
+
+; jsr _ApplyTiles ; This function actually draws the new tiles into the code field
+
+ jsr _ScanlineBG0XPos ; Patch the code field instructions with exit BRA opcode
+; jsr _ApplyBG1XPos ; Update the direct page value based on the horizontal position
+
+; The code fields are locked in now and ready to be rendered. See if there is an overlay or any
+; other reason to render with shadowing off. Otherwise, just do things quickly.
+
+ lda Overlays
+ beq :no_ovrly
+
+ jsr _ShadowOff
+
+; Shadowing is turned off. Render all of the scan lines that need a second pass. One
+; optimization that can be done here is that the lines can be rendered in any order
+; since it is not shown on-screen yet.
+
+ ldx Overlays+2 ; Blit the full virtual buffer to the screen
+ ldy Overlays+4
+ jsr _BltRange
+
+; Turn shadowing back on
+
+ jsr _ShadowOn
+
+; Now render all of the remaining lines in top-to-bottom (or bottom-to-top) order
+
+ ldx #0
+ ldy Overlays+2
+ beq :skip
+ jsr _BltRange
+:skip
+ jsr _DoOverlay
+
+ ldx Overlays+4
+ cpx ScreenHeight
+ beq :done
+ ldy ScreenHeight
+ jsr _BltRange
+ bra :done
+
+:no_ovrly
+ ldx #0 ; Blit the full virtual buffer to the screen
+ ldy ScreenHeight
+ jsr _BltRange
+:done
+
+ ldx #0
+ ldy ScreenHeight
+ jsr _BltSCB
+
+ lda StartYMod208 ; Restore the fields back to their original state
+ ldx ScreenHeight
+ jsr _RestoreScanlineBG0Opcodes
+
+ lda StartY
+ sta OldStartY
+ lda StartX
+ sta OldStartX
+
+ lda BG1StartY
+ sta OldBG1StartY
+ lda BG1StartX
+ sta OldBG1StartX
+
+ stz DirtyBits
+ stz LastRender ; Mark that a full render was just performed
+
+ lda SpriteRemovedFlag ; If any sprite was removed, set the rebuild flag
+ beq :no_removal
+ lda #DIRTY_BIT_SPRITE_ARRAY
+ sta DirtyBits
+:no_removal
+ rts
+
; Run through all of the tiles on the DirtyTile list and render them
_ApplyTiles
ldx DirtyTileCount
diff --git a/src/Tool.s b/src/Tool.s
index dae5db3..77e1d50 100644
--- a/src/Tool.s
+++ b/src/Tool.s
@@ -819,6 +819,7 @@ _TSSetBG1Scale
put Sprite2.s
put SpriteRender.s
put Render.s
+ put blitter/Scanline.s
put render/Render.s
put render/Fast.s
put render/Slow.s
diff --git a/src/blitter/Horz.s b/src/blitter/Horz.s
index 75840de..76fbccd 100644
--- a/src/blitter/Horz.s
+++ b/src/blitter/Horz.s
@@ -321,7 +321,7 @@ _ApplyBG0XPos
adc :virt_line_x2 ; filled in
sta :virt_line_x2
- lda :exit_address ; Save from this location
+ lda :exit_address ; Save from this location (not needed in fast mode)
SaveOpcode ; X = :exit_address on return
txy ; ldy :exit_address -- starting at this address
@@ -336,7 +336,7 @@ _ApplyBG0XPos
lda :entry_offset
ldy :base_address
- SetCodeEntry ; All registers are preserved
+ SetCodeEntry ; All registers are preserved
; Now, patch in the opcode
diff --git a/src/blitter/Scanline.s b/src/blitter/Scanline.s
index b1ff0ac..fed8f62 100644
--- a/src/blitter/Scanline.s
+++ b/src/blitter/Scanline.s
@@ -109,7 +109,7 @@ _ScanlineBG0XPos
sty :base_address
lda BTableHigh,x
- ora src_bank
+ ora :src_bank
pha
plb
@@ -171,6 +171,56 @@ _ScanlineBG0XPos
rts
+
+_RestoreScanlineBG0Opcodes
+
+:virt_line_x2 equ tmp1
+:lines_left_x2 equ tmp2
+:src_bank equ tmp6
+
+ asl
+ sta :virt_line_x2 ; Keep track of it
+
+ phb
+ phb
+ pla
+ and #$FF00
+ sta :src_bank
+
+ txa
+ asl
+ sta :lines_left_x2
+
+:loop
+ ldx :virt_line_x2
+ ldy BTableLow,x ; Get the address of the first code field line
+
+ lda BTableHigh,x
+ ora :src_bank
+ pha
+
+ lda LastPatchOffsetArr,x
+ tax
+
+ plb
+ lda OPCODE_SAVE+$0000,y
+ sta $0000,x
+
+; Do the end of the loop -- update the virtual line counter and reduce the number
+; of lines left to render
+
+ plb ; restore the bank
+
+ lda :virt_line_x2
+ inc
+ inc
+ sta :virt_line_x2
+ cmp :last_line_x2
+ jne :loop
+
+ stz LastPatchOffset ; Clear the value once completed
+ rts
+
; Unrolled copy routine to move BankTable entries into BNK_ADDR position. This is a bit different than the
; other routines, because we don't need to put values into the code fields, but just copy one-byte values
; into an internal array in bank 00 space. The reason for this is because the code sequence
@@ -185,7 +235,7 @@ _ScanlineBG0XPos
; plb
; plb = 13 cycles
;
-; If for some reason it becimes important to preserve the accumulator, or save the 208 bytes of
+; If for some reason it becomes important to preserve the accumulator, or save the 208 bytes of
; bank 00 memory, then we can change it. The advantage right now is that updating the array can
; be done 16-bits at a time and without having to chunk up the writes across multiple banks. This
; is quite a bit faster than the other routines.
diff --git a/src/blitter/Vert.s b/src/blitter/Vert.s
index 436ae44..b31f2f6 100644
--- a/src/blitter/Vert.s
+++ b/src/blitter/Vert.s
@@ -243,7 +243,7 @@ _ApplyBG0YPos
; Unrolled copy routine to move RTable intries into STK_ADDR position.
;
-; A = intect into the RTable array (x2)
+; A = index into the RTable array (x2)
; Y = starting line * $1000
; X = number of lines (x2)
CopyRTableToStkAddr mac
@@ -320,5 +320,5 @@ bottom
<<<
_CopyRTableToStkAddr
- CopyRTableToStkAddr tmp0
- rts
\ No newline at end of file
+ CopyRTableToStkAddr tmp0
+ rts
\ No newline at end of file
diff --git a/src/static/TileStore.s b/src/static/TileStore.s
index 6783380..74e733b 100644
--- a/src/static/TileStore.s
+++ b/src/static/TileStore.s
@@ -535,4 +535,9 @@ Scale14 dw $0038,$003A,$003A,$003A,$003C,$003C,$003C,$003C,$003E,$003E,$003E,$
Scale15 dw $003C,$003C,$003C,$003E,$003E,$003E,$003E,$0040,$0040,$0040,$0040,$0042,$0042,$0042,$0042,$0044,$0044,$0044,$0044,$0046,$0046,$0046,$0046,$0048,$0048,$0048,$0048,$004A,$004A,$004A,$004A,$004C,$004C,$004C,$004C,$004E,$004E,$004E,$004E,$0050,$0050,$0050,$0050,$0052,$0052,$0052,$0052,$0054,$0054,$0054,$0054,$0056,$0056,$0056,$0056,$0058,$0058,$0058,$0058,$005A,$005A,$005A,$005A,$005C,$005C,$005C,$005C,$005E,$005E,$005E,$005E,$0060,$0060,$0060,$0060,$0062,$0062,$0062,$0062,$0064,$0064,$0064
blt_return
-stk_save
\ No newline at end of file
+stk_save
+
+StartXMod164Arr ENT
+ ds 416*2
+LastPatchOffsetArr ENT
+ ds 416*2