diff --git a/DevJournal.txt b/DevJournal.txt
index 4cf852b..4786b7d 100644
--- a/DevJournal.txt
+++ b/DevJournal.txt
@@ -959,3 +959,7 @@ A small refactoring in main.cpp (replaced big if/else branch statement with swit
 
 7/28/2017
 Update github repository.
+
+5/9/2022
+I have upgraded to MINGW 8.1.0
+
diff --git a/makefile.mingw b/makefile.mingw
index b3d5148..a4403c5 100644
--- a/makefile.mingw
+++ b/makefile.mingw
@@ -1,8 +1,13 @@
 # Project: VM65
 # Makefile created by Dev-C++ 5.11
 # and modified for standalone MINGW compiler installation.
+# NOTE:
+#    Set SDLDIR and MINGWDIR in your compilation environment,
+#    and then
+#		    set PATH=%MINGWDIR%\mingw64\bin;%SDLDIR%\lib\x64;%PATH%
 
-#SDLBASE  = "C:\src\SDL"
+#SDLDIR   = "D:\src\SDL"
+#MINGWDIR = "C:\mingw-w64\x86_64-8.1.0"
 SDLBASE  = $(SDLDIR)
 CPP      = g++.exe -D__DEBUG__
 CC       = gcc.exe -D__DEBUG__
@@ -11,10 +16,10 @@ OBJ      = main.o VMachine.o MKCpu.o Memory.o Display.o GraphDisp.o MemMapDev.o
 OBJ2     = bin2hex.o
 LINKOBJ  = main.o VMachine.o MKCpu.o Memory.o Display.o GraphDisp.o MemMapDev.o MKGenException.o ConsoleIO.o MassStorage.o
 LINKOBJ2 = bin2hex.o
-LIBS     = -L"C:\mingw-w64\x86_64-5.3.0\mingw64\x86_64-w64-mingw32/lib" -L"C:\mingw-w64\x86_64-5.3.0\mingw64\x86_64-w64-mingw32/lib" -static-libgcc -static-libstdc++ -Wl,-Bstatic -lstdc++ -lpthread -Wl,-Bdynamic -lmingw32
+LIBS     = -L"$(MINGWDIR)\mingw64\x86_64-w64-mingw32/lib" -L"$(MINGWDIR)\mingw64\x86_64-w64-mingw32/lib" -static-libgcc -static-libstdc++ -Wl,-Bstatic -lstdc++ -lpthread -Wl,-Bdynamic -lmingw32
 SDLLIBS  = -L"$(SDLBASE)\x86_64-w64-mingw32/lib" -lSDL2main -lSDL2
-INCS     = -I"C:\mingw-w64\x86_64-5.3.0\mingw64/include" -I"C:\mingw-w64\x86_64-5.3.0\mingw64\x86_64-w64-mingw32/include" -I"C:\mingw-w64\x86_64-5.3.0\mingw64\lib\gcc\x86_64-w64-mingw32\5.3.0/include"
-CXXINCS  = -I"C:\mingw-w64\x86_64-5.3.0\mingw64/include" -I"C:\mingw-w64\x86_64-5.3.0\mingw64\x86_64-w64-mingw32/include" -I"C:\mingw-w64\x86_64-5.3.0\mingw64\lib\gcc\x86_64-w64-mingw32\5.3.0/include"
+INCS     = -I"$(MINGWDIR)\mingw64/include" -I"$(MINGWDIR)\mingw64\x86_64-w64-mingw32/include" -I"$(MINGWDIR)\mingw64\lib\gcc\x86_64-w64-mingw32\5.3.0/include"
+CXXINCS  = -I"$(MINGWDIR)\mingw64/include" -I"$(MINGWDIR)\mingw64\x86_64-w64-mingw32/include" -I"$(MINGWDIR)\mingw64\lib\gcc\x86_64-w64-mingw32\5.3.0/include"
 BIN       = vm65.exe
 BIN2      = bin2hex.exe
 CXXFLAGS  = $(CXXINCS) -std=c++11 -Wall -Wextra -pedantic -g3
diff --git a/mingw-w64.bat b/mingw-w64.bat
new file mode 100644
index 0000000..dd11706
--- /dev/null
+++ b/mingw-w64.bat
@@ -0,0 +1,9 @@
+echo off
+set MINGWDIR=C:\mingw-w64\x86_64-8.1.0
+set SDLDIR=D:\src\SDL
+set PATH=%MINGWDIR%\mingw64\bin;%SDLDIR%\lib\x64;%PATH%
+rem echo %PATH%
+rem cd "C:\mingw-w64\x86_64-8.1.0\mingw64\bin"
+D:
+cd "D:\src\githubwrk\vm6502"
+"C:\Windows\system32\cmd.exe"