From d42ffd3ef4ab8d60af301046cda023f05dbbdab2 Mon Sep 17 00:00:00 2001
From: "B. Watson" <urchlay@slackware.uk>
Date: Sun, 1 Mar 2026 11:57:28 -0500
Subject: Don't show GR.0 screen during loading.

---
 memsetup.asm | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'memsetup.asm')

diff --git a/memsetup.asm b/memsetup.asm
index 3fe19d1..314a7df 100644
--- a/memsetup.asm
+++ b/memsetup.asm
@@ -5,6 +5,11 @@ memsetup
  sta $02e6  ; MEMTOP high
  lda #0
  sta $02e5  ; MEMTOP low
+ sta $022f  ; SDMCTL (turn off screen)
+ lda $14    ; RTCLOK+2
+loop
+ cmp $14    ; wait until next frame
+ beq loop
  rts
 
  *= $02e2  ; INITAD
-- 
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