From 5a0f1c7e46f40e013a675bed0167daab30ea76c4 Mon Sep 17 00:00:00 2001
From: pjht <terppa05@gmail.com>
Date: Fri, 24 Mar 2023 08:04:53 -0500
Subject: [PATCH] Adjust stack when jumping to bootsector to avoid IO space

---
 rom.68k | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/rom.68k b/rom.68k
index 40f7362..00b3261 100644
--- a/rom.68k
+++ b/rom.68k
@@ -22,8 +22,12 @@ romfindret:
   jmp (a6) | Jump to the ramcode
 
 ramcode:
-  move.b #0x0, (0xF2, a6) | Disable the ROM
+  move.b #0x0, (0xF3, a6) | Disable the ROM
   move.l #0x1, (a5) | Enable the RAM at base 0x0
+  cmpi.l #0x1000000, d7
+  blt.b sp_ok
+  move.l #0xff0000, d7
+  sp_ok:
   move.l d7, a7
   | Load sector 0 to 0x0
   move.l #0x0, (0x0, a4) | Set the sector number to 0