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readme.txt
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readme.txt
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ooooooooo oooo oooo o ooooooooooo ooooooooooo
888 88o 888 o88 888 888 888
888 888 888888 8 88 888ooo8 888ooo8
888 888 888 88o 8oooo88 888 888
o888ooo88 o888o o888o o88o o888o o888o o888ooo8888
by Jon Wilson (10yard)
Notes on DKWolf
---------------
DKWolf is a custom lightweight build of WolfMAME which supports only Donkey Kong drivers.
The code changes for WolfMAME 0.196, 0.236 and 0.241 are included in the "changes" folder.
frontend/mame/ui/ui.cpp
removed startup up messages
disabled load states and save states
disabled throttling, frameskip, overclocking, rewind/fastforward, cheats, stepping when paused
emu/romload.cpp
removed "WARNING: the machine might not run correctly."
removed "WRONG CHECKSUMS" message as we are expecting this with our DK hacks.
removed ROM loading messages
emu/validity.cpp
Increase check to 1000 roms before clones are validated. This suppresses the warnings.
emu/video.h
Increase the max frameskip so we can more quickly skip the dk intro scene when user presses jump button.
We can also start some console roms quicker that load from disk.
emu/machine.cpp
Disable save state messages. States are used by DKAFE only for quick loading of shell/console roms.
frontend/mame/mame.cpp
removed "Initializing..." message
frontend/mame/language.cpp
Remove translation error messages
mame/drivers/galaxian.cpp, mame/includes/galaxian.h and mame/mame.lst
To add support for bigkonggx to v0.241
A useful reference to compiling MAME can be found at:
http://forum.arcadecontrols.com/index.php?topic=149545.0
MAME build tools are available at https://github.com/mamedev/buildtools/releases
To build with only DK drivers (including DK conversions) the SOURCES flag was used in the makefile along with REGENIE i.e.
SOURCES=src/mame/drivers/dkong.cpp,src/mame/drivers/cclimber.cpp,src/mame/drivers/galaxian.cpp
REGENIE=1
NOWERROR=1
Other optimisations/flags are:
OPTIMIZE=3
SYMBOLS=0
SYMLEVEL=1
STRIP_SYMBOLS=1
TOOLS=0
DEBUG=0
USE_QTDEBUG=0
Pi4 build specifics:
Build requires a 8GB minimum SDcard and some dependencies to be installed:
sudo apt update
sudo apt-get install git build-essential python libsdl2-dev libsdl2-ttf-dev libfontconfig-dev qt5-default
Grab sources for a specific release of WolfMAME prior to build:
wget https://github.com/mahlemiut/wolfmame/archive/refs/tags/wolf241.zip
unzip wolf241.zip
Apply source changes (assuming the sources target):
cp ~/dkafe_bin/dkwolf/changes/wolf241-build/language.cpp ~/wolfmame-wolf241/src/frontend/mame/language.cpp
cp ~/dkafe_bin/dkwolf/changes/wolf241-build/ui.cpp ~/wolfmame-wolf241/src/frontend/mame/ui/ui.cpp
cp ~/dkafe_bin/dkwolf/changes/wolf241-build/romload.cpp ~/wolfmame-wolf241/src/emu/romload.cpp
cp ~/dkafe_bin/dkwolf/changes/wolf241-build/validity.cpp ~/wolfmame-wolf241/src/emu/validity.cpp
cp ~/dkafe_bin/dkwolf/changes/wolf241-build/mame.cpp ~/wolfmame-wolf241/src/frontend/mame/mame.cpp
Additional Pi4 flags are:
NO_OPENGL=1
NO_X11=1
ARCHOPTS = -mcpu=cortex-a72 -mtune=cortex-a72 -mfpu=neon-vfpv4 -mfloat-abi=hard -funsafe-math-optimizations -fexpensive-optimizations -fprefetch-loop-arrays
make -j4 LDFLAGS="-Wl,--copy-dt-needed-entries"