From: Toni Wilen <twilen@winuae.net>
Date: Mon, 11 Nov 2019 20:26:57 +0000 (+0200)
Subject: Do not enable blizzard 1260 maprom support if no RAM installed.
X-Git-Tag: 4300~45
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=d8b4b04e7942cf405dee469b92940a50fa80007b;p=francis%2Fwinuae.git

Do not enable blizzard 1260 maprom support if no RAM installed.
---

diff --git a/cpuboard.cpp b/cpuboard.cpp
index 7a9cc816..de4e6424 100644
--- a/cpuboard.cpp
+++ b/cpuboard.cpp
@@ -2072,12 +2072,14 @@ static void cpuboard_init_2(void)
 		blizzardf0_bank.mask = blizzardf0_bank.reserved_size - 1;
 		mapped_malloc(&blizzardf0_bank);
 
-		blizzardmaprom_bank.baseaddr = a3000hmem_bank.baseaddr + a3000hmem_bank.reserved_size - 524288;
-		blizzardmaprom_bank.start = a3000hmem_bank.start + a3000hmem_bank.reserved_size - 524288;
-		blizzardmaprom_bank.reserved_size = 524288;
-		blizzardmaprom_bank.mask = 524288 - 1;
-		blizzardmaprom_bank.flags |= ABFLAG_INDIRECT | ABFLAG_NOALLOC;
-		mapped_malloc(&blizzardmaprom_bank);
+		if (a3000hmem_bank.baseaddr) {
+			blizzardmaprom_bank.baseaddr = a3000hmem_bank.baseaddr + a3000hmem_bank.reserved_size - 524288;
+			blizzardmaprom_bank.start = a3000hmem_bank.start + a3000hmem_bank.reserved_size - 524288;
+			blizzardmaprom_bank.reserved_size = 524288;
+			blizzardmaprom_bank.mask = 524288 - 1;
+			blizzardmaprom_bank.flags |= ABFLAG_INDIRECT | ABFLAG_NOALLOC;
+			mapped_malloc(&blizzardmaprom_bank);
+		}
 
 	} else if (is_csmk3(&currprefs)) {