Optimization: don't have to inx in sprite code, can hardcode the increase in the array position

2017-07-02 21:54:04 -07:00 · 2017-07-02 21:54:04 -07:00 · 89db8f6406
parent d748e2b737
commit 89db8f6406
1 changed files with 3 additions and 4 deletions
--- a/HiSprite.py
+++ b/HiSprite.py
@ -437,12 +437,11 @@ class Sprite(Listing):
                self.asm("ldx PARAM1")
                cycles = 3
            else:
-                self.asm("inx")
-                cycles = 2
-            self.asm("lda HGRROWS_H1,x")
+                cycles = 0
+            self.asm("lda HGRROWS_H1+%d,x" % row)
            cycles += 4
        self.asm("sta SCRATCH1")
-        self.asm("lda HGRROWS_L,x")
+        self.asm("lda HGRROWS_L+%d,x" % row)
        self.asm("sta SCRATCH0")
        if row == 0:
            self.asm("ldy PARAM0")