optimize new memcpy

2025-05-15 16:18:50 +02:00 · 2025-05-15 16:18:50 +02:00 · cc46c68290
commit cc46c68290
parent f8dbfd86f9
1 changed files with 9 additions and 5 deletions
--- a/wip-hugo/routines/memory/memcpy.s
+++ b/wip-hugo/routines/memory/memcpy.s
@ -13,12 +13,16 @@ change_length:
        DEC length
        BNE loop

-        ;;check if length hi byte is 0. if it is end this
-        LDA length + 1
-        BEQ loop_end
-
        DEC length +1
-        JMP loop
+        BPL loop
+        JMP loop_end
+
+        ;;;;check if length hi byte is 0. if it is end this
+        ;;LDA length + 1
+        ;;BEQ loop_end
+
+        ;;DEC length +1
+        ;;JMP loop
 y_overflow:
        LDY #$00
        INC B_start + 1