# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1489475179 25200
# Node ID 34113230fd88bf6b816ea4d8218fa0b9904c5329
# Parent  6a6cc3b3949b8e6d24c1cc0a63c5d6e2138ba1e2
Fix heuristic detection of SRAM for 3MB ROMs with SRAM at the 3MB mark

diff -r 6a6cc3b3949b -r 34113230fd88 romdb.c
--- a/romdb.c	Tue Mar 14 00:05:33 2017 -0700
+++ b/romdb.c	Tue Mar 14 00:06:19 2017 -0700
@@ -529,6 +529,9 @@
 
 		if (ram_start >= rom_end) {
 			info->map[0].end = rom_end < 0x400000 ? nearest_pow2(rom_end) - 1 : 0xFFFFFF;
+			if (info->map[0].end > ram_start) {
+				info->map[0].end = ram_start;
+			}
 			//TODO: ROM mirroring
 			info->map[0].mask = 0xFFFFFF;
 			info->map[0].flags = MMAP_READ;