From a9d1e99533de1fd378892c0da5caa564f2bb639b Mon Sep 17 00:00:00 2001
From: kub <derkub@gmail.com>
Date: Fri, 12 Jul 2024 22:11:51 +0200
Subject: [PATCH] core, adjustment for background color DMA

---
 pico/videoport.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pico/videoport.c b/pico/videoport.c
index 9663e2bf..9c35162d 100644
--- a/pico/videoport.c
+++ b/pico/videoport.c
@@ -626,7 +626,8 @@ static void DmaSlow(int len, u32 source)
         if (sl > VdpFIFO.fifo_hcounts[0]-5) // hint delay is 5 slots
           sl = (s8)sl;
         // TODO this is needed to cover timing inaccuracies
-        if (sl <= 12) sl = -2;
+        if (sl <= 12) sl = -3;
+        else if (sl <= 40) sl = 30;
         PicoDrawBgcDMA(base, source, mask, len, sl);
         // do last DMA cycle since it's all going to the same cram location
         source = source+len-1;
-- 
2.39.2