From 6ee280abec546d718caa5cfea13973798533cecb Mon Sep 17 00:00:00 2001
From: hugova <hugova@kth.se>
Date: Sun, 13 Jul 2025 21:57:14 +0200
Subject: [PATCH] improve memset with code unrolling

---
 wip-hugo/routines/memory/memset.s | 24 +++++++++++++++---------
 wip-hugo/source.s                 | 20 ++++++++++----------
 2 files changed, 25 insertions(+), 19 deletions(-)

diff --git a/wip-hugo/routines/memory/memset.s b/wip-hugo/routines/memory/memset.s
index 4696260..1322528 100755
--- a/wip-hugo/routines/memory/memset.s
+++ b/wip-hugo/routines/memory/memset.s
@@ -8,28 +8,34 @@
 ;; big_set sets the memory in $ff chunks.
 ;; skipp if length >= $ff
 LDX length +1
-BEQ small_set
+BNE big_set
+JMP small_set
 
-big_set:
+
+big_set: ;sets $ff of memory
         LDY #$ff
-big_set_loop:
+        .repeat $ff
         STA (A_start), Y
         DEY
-        BNE big_set_loop
-        STA (A_start), Y  ; don't forget Y=0
-        ;;maybe move to next chunk
+        .endrepeat
+        STA (A_start), Y ; dont forget Y =0
+big_set_end:
+        ;;set all hole $ff memory chunks!
         INC A_start + 1
         DEC length + 1
-        BNE big_set
+        BEQ small_set
+        JMP big_set
+
+
 
 ;;sets the rest of the memory
+;; note that this can use code above (smc) or the same method. may implement later.
 small_set:
-        LDY length
+       LDY length
 small_set_loop:
         STA (A_start), Y
         DEY
         BNE small_set_loop
         STA (A_start), Y
         RTS
-
 .endproc
diff --git a/wip-hugo/source.s b/wip-hugo/source.s
index 542565f..1f19dfc 100644
--- a/wip-hugo/source.s
+++ b/wip-hugo/source.s
@@ -8,17 +8,17 @@
 .include "STARTUP.s"
 ;.include "dubbel_buffer/raster_irqs.s"
 
-;.include "routines/arithmatic/mult_test.s"
-;.include "routines/arithmatic/div_test.s"
-;.include "routines/circle/circle_test.s"
-;.include "routines/circle/circle_test_size.s"
-;.include "routines/circle/circle_test_position.s"
-;.include "routines/line/line_test.s"
-;.include "routines/text/char_draw_test.s"
-;.include "routines/pixel/pixel_test.s"
-;.include "routines/memory/memcpy_test.s"
+.include "routines/arithmatic/mult_test.s"
+.include "routines/arithmatic/div_test.s"
+.include "routines/circle/circle_test.s"
+.include "routines/circle/circle_test_size.s"
+.include "routines/circle/circle_test_position.s"
+.include "routines/line/line_test.s"
+.include "routines/text/char_draw_test.s"
+.include "routines/pixel/pixel_test.s"
+.include "routines/memory/memcpy_test.s"
 .include "routines/memory/memset_test.s"
-;.include "routines/triangle/triangle_test.s"
+.include "routines/triangle/triangle_test.s"
 exit:
 JMP exit
 .include "../wip-duuqnd/public.inc"