retrosven / mame2003_midway

mame2003-libretro

MAME as it was in 2003, and using the libretro API. Accepts romset MAME 0.78. Any file-not-found issues will be because your romset is wrong, or incomplete (e.g. you're trying to run a clone .zip, without the parent .zip present).

Suitable for lower-end devices that would struggle to run current versions of MAME (later versions of MAME are increasingly accurate, thus can perform worse).

Has support for a single mouse (or touch device) in games that support trackpads, etc (via the "Mouse Device" core option) Supports one or two spinners/dials (via the "Share 2 player dial controls across one X/Y device" core option)

Tested for OS X, linux (including Raspberry Pi 2, 3), Wii, and Android (arm-v7a).

Directories

Generates directories as it requires:

• User-generated content are in sub-directories within /libretro savefile dir/mame2003/ e.g.:

/libretro savefile dir/mame2003/diff/
/libretro savefile dir/mame2003/nvram/
/libretro savefile dir/mame2003/hi/
/libretro savefile dir/mame2003/cfg/
/libretro savefile dir/mame2003/inp/
/libretro savefile dir/mame2003/memcard/
/libretro savefile dir/mame2003/snap/

• .dat files should be placed within /libretro system dir/mame2003/ e.g.:

/libretro system dir/mame2003/hiscore.dat
/libretro system dir/mame2003/cheat.dat
/libretro system dir/mame2003/history.dat

• Static data should be placed in subdirectories within /libretro system dir/mame2003/ e.g.:

/libretro system dir/mame2003/samples/

• .chd images should be placed in subdirectories within the /libretro content dir/ ROM directory e.g.:

/libretro content dir/blitz/blitz.chd

Core options

• Frameskip (0-5)
• DCS Speedhack (enabled/disabled) Speedhack for the Midway sound hardware used in Mortal Kombat 2, 3 and others. Improves performance in these games.
• Skip Disclaimer (enabled/disabled) Skips the 'nag-screen'.
• Skip Warnings (disabled/enabled) Skips the warning screen shown before games with incomplete emulation.
• Samples (enabled/disabled) Requires valid sample zips.
• Sample Rate (KHz) (11025-48000) Lowering may improve performance on weaker devices
• Cheats (disabled/enabled) Requires a valid cheat.dat file.
• Share 2 player dial controls across one X/Y device (disabled/enabled) Some dial/spinner hardware are actually one device with one axis for each player. This supports that setup, by breaking down the normal mouse x/y into two seperate inputs.
• Mouse Device (mouse/pointer/disabled) Switch between mouse (e.g. hardware mouse, trackball, etc), pointer (touchpad, touchscreen, lightgun, etc), or disabled.

To-do:

• Make sure all of the mkdir commands in makefile complete before any compiling starts.
• Input Descriptors (for use in Core Input Remapping).
• Expose all MAME options as Core Options (including various vector game-specific options)
• Artwork support.
• High-resolution in vector games (currently limited to 640x480).
• Lots more.

Notes:

• Will have errors on 64-bit platforms.
• Will have errors on platforms without unaligned memory access support.
• When using concurrent building you may get an error that it can't create certain object files, just rerun make if it happens.
• To run on Wii's memory constraints some drivers in src/driver.c must be removed.

Links to consult:

http://www.anthrofox.org/code/mame/index.html https://code.oregonstate.edu/svn/dsp_bd/uclinux-dist/trunk/user/games/xmame/xmame-0.106/src/unix/contrib/patches/word-align-patch http://www.filewatcher.com/b/ftp/ftp.zenez.com/pub/mame/xmame.0.0.html https://github.com/RetroPie/RetroPie-Setup/wiki/lr-mame2003