From f93ccc3933ec651162fe0fbeef9e3080d0dd6265 Mon Sep 17 00:00:00 2001
From: tomcw <tomcw@users.noreply.github.com>
Date: Sat, 30 Mar 2024 13:11:02 +0000
Subject: [PATCH] Only allow alloc granularity of 64KiB + add more logging

---
 source/Memory.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/source/Memory.cpp b/source/Memory.cpp
index 4f12cd91..24ae91e4 100644
--- a/source/Memory.cpp
+++ b/source/Memory.cpp
@@ -1544,7 +1544,7 @@ static LPBYTE AllocMemImage(void)
 	// . This is a fix (and optimisation) for 6502 opcodes that do a 16-bit read at 6502 address $FFFF. (GH#1285)
 	SYSTEM_INFO info;
 	GetSystemInfo(&info);
-	bool res = info.dwAllocationGranularity <= _6502_MEM_LEN;
+	bool res = (info.dwAllocationGranularity == _6502_MEM_LEN);
 
 	if (res)
 	{
@@ -1594,6 +1594,10 @@ static LPBYTE AllocMemImage(void)
 		}
 #endif
 	}
+	else
+	{
+		LogFileOutput("MemInitialize: SYSETEM_INFO.wAllocationGranularity = 0x%08X.\n", info.dwAllocationGranularity);
+	}
 
 	if (!res)
 	{