From: notaz <notasas@gmail.com>
Date: Mon, 3 Dec 2007 21:44:19 +0000 (+0000)
Subject: added handling for bad sram headers
X-Git-Tag: v1.85~609
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=53668ca0f8dae622f61c2b30000a27b80fd8ec6f;p=picodrive.git

added handling for bad sram headers

git-svn-id: file:///home/notaz/opt/svn/PicoDrive@309 be3aeb3a-fb24-0410-a615-afba39da0efa
---

diff --git a/Pico/Cart.c b/Pico/Cart.c
index a19dcc86..749d4614 100644
--- a/Pico/Cart.c
+++ b/Pico/Cart.c
@@ -546,10 +546,12 @@ void PicoCartDetect(void)
       Pico.m.sram_reg |= 4;
     } else {
       // normal SRAM
-      SRam.start = PicoRead32(0x1B4) & 0xFFFF00;
+      SRam.start = PicoRead32(0x1B4) & ~0xff;
       SRam.end   = PicoRead32(0x1B8) | 1;
       sram_size  = SRam.end - SRam.start + 1;
     }
+    SRam.start &= ~0xff000000;
+    SRam.end   &= ~0xff000000;
     Pico.m.sram_reg |= 0x10; // SRAM was detected
   }
   if (sram_size <= 0)