Initialize the graphics screen via the toolset

demos/tool/App.Main.s

@@ -11,6 +11,9 @@
 
                 mx         %00
 
+ScreenX         equ   0
+ScreenY         equ   2
+
 ; Typical init
                 phk
                 plb
@@ -20,6 +23,23 @@
 
                 jsr   GTEStartUp              ; Load and install the GTE User Tool
 
+; Initialize the graphics screen to a 256x160 playfield
+
+                pea   #256
+                pea   #160
+                _GTESetScreenMode
+
+; Load a tileset in from an uncompressed $C1 picture. The top-left 256x128 rectangle is used
+; to populate the 512 tiles.
+
+
+; Manually fill in the 41x26 tiles of the TileStore with a test pattern.
+
+
+; Set the origin of the screen
+                stz   ScreenX
+                stz   ScreenY
+
 ; Very simple actions
 :loop
                 pha                           ; space for result, with pattern
@@ -27,9 +47,19 @@
                 pla
                 and   #$00FF
                 cmp   #'q'
-                bne   :loop
+                beq   :exit
 
-; Shut down eveything
+;                pei   ScreenX
+;                pei   ScreenY
+;                _GTESetBG0Origin
+
+;                _GTERender
+
+                inc   ScreenX                 ; Just keep incrementing, it's OK
+                bra   :loop
+
+; Shut down everything
+:exit
                 _GTEShutDown
                 _QuitGS qtRec
 qtRec           adrl       $0000

demos/tool/package.json

@@ -13,7 +13,9 @@
   "scripts": {
     "test": "npm run build && build-image.bat %npm_package_config_cadius% && %npm_package_config_gsport%",
     "debug": "%npm_package_config_crossrunner% GTEToolDemo -Source MAINSEG_Output.txt -Debug -CompatibilityLayer",
-    "build": "%npm_package_config_merlin32% -V %npm_package_config_macros% App.s"
+    "build": "npm run build:tool && npm run build:sys16",
+    "build:sys16": "%npm_package_config_merlin32% -V %npm_package_config_macros% App.s",
+    "build:tool": "%npm_package_config_merlin32% -V %npm_package_config_macros% ../../src/Master.s"
   },
   "repository": {
     "type": "git",

src/Tool.s

@@ -46,8 +46,11 @@ _CallTable
                 adrl  _TSReserved-1
                 adrl  _TSReserved-1
 
-                adrl  _TSReadControl-1        ; Function 9
-                adrl  _TSSetScreenMode-1      ; Function 10
+                adrl  _TSReadControl-1
+                adrl  _TSSetScreenMode-1
+                adrl  _TSSetTile-1
+                adrl  _TSSetBG0Origin-1
+                adrl  _TSRender-1
 _CTEnd
 
 ; Do nothing when the tool set is installed
@@ -175,6 +178,7 @@ width           equ     FirstParam+2
 
                 _TSExit #0;#4
 
+; ReadControl()
 _TSReadControl
 output          equ     FirstParam
 
@@ -183,8 +187,31 @@ output          equ     FirstParam
                 jsr     _ReadControl
                 sta     output,s
 
+                _TSExit  #0;#0
+
+; SetTile(xTile, yTile, tileId)
+_TSSetTile
+tileId          equ     FirstParam
+yTile           equ     FirstParam+2
+xTile           equ     FirstParam+4
+
+                _TSEntry
+                _TSExit #0;#6
+
+; SetBG0Origin(x, y)
+_TSSetBG0Origin
+yPos            equ     FirstParam
+xPos            equ     FirstParam+2
+
+                _TSEntry
+                _TSExit #0;#4
+
+; Render()
+_TSRender
+                _TSEntry
                 _TSExit #0;#0
 
+
 ; Insert the GTE code
 
                 put     Math.s