full-screen draw speed test

neutgs/init.fnl

@@ -38,7 +38,7 @@
   (const screen-addr 0xe12000)
   (const screen-size 0x9d00)
 
-  (asm tiles (bytes [(. files.game.tiles 1 :gfx)]))
+  (asm tiles [(lume.concat [:flatten] (icollect [_ tile (ipairs files.game.tiles)] [:bytes tile.gfx]))])
 
   (form set-palette [(fn [ssc index pal]
     (let [addr (+ 0xe19e00 (* index 0x20))
@@ -65,10 +65,12 @@
       (yield)
       (set! i (+ i 1)))))
 
-  (fn draw-test-tiles ()
+  (form itile-to-tile [(fn [ssc itile] [:block (ssc:expr-word itile) [:asl] [:asl] [:asl] [:asl] [:asl] [:asl] [:asl] [:clc] [:adc #($1:lookup-addr :tiles)]])])
+
+  (fn draw-test-tiles (i)
     (let (x 0 y 0 screen 0x2000)
       (while (< y 12)
-        (draw-tile (ref tiles) screen)
+        (draw-tile (itile-to-tile (& (+ x y i) 3)) screen)
         (set! x (+ x 1))
         (if (= x 20)
           (do (set! x 0)
@@ -76,6 +78,13 @@
               (set! screen (+ screen [(+ 8 (* 160 15))])))
           (set! screen (+ screen 8))))))
 
+  (fn draw-test-tiles-forever ()
+    (let (i 0)
+      (while true
+        (draw-test-tiles i)
+        (yield)
+        (set! i (+ i 1)))))
+
   (fn main ()
     (LoadTools (far-ref toolsets))
     (set! userID (MMStartUp))
@@ -84,14 +93,16 @@
     (QDStartUp 0x2100 0 0 userID)
     (EMStartUp 0x2000 0 0 320 0 200 userID)
     (GrafOn)
-
     (ClearScreen 0)
     (set-palette 0 [pal])
     (SetAllSCBs 0)
 
     (wait-for-key)
-    (draw-test-tiles)
+    (let (tile-task (new-task (ref draw-test-tiles-forever)))
       (wait-for-key)
+      (set! (word-at (ref :0xc035)) (& (word-at (ref :0xc035)) 0xf7))
+      (wait-for-key)
+      (reset-task tile-task (ref yield-forever)))
 
     (GrafOff)
 

ssc/init.fnl

@@ -71,7 +71,7 @@
         c-setup (when opgen.setup (opgen.setup))
         c-hi (when opgen.hi [(opgen.hi :lda) [:pha]])
         loc {: name :type (if c-hi :word :placeholder)}
-        _ (table.insert self.locals loc)
+        _ (table.insert self.locals loc) ; if we push a high word onto the stack it shifts stack offsets
         c-lo [(opgen.lo :lda) [:pha]]]
     (set loc.type etype)
     (lume.concat [:block c-setup] c-hi c-lo)))