PSP MAME4ALL is a multiple Arcade machine emulator for Playstation Portable.

Release notes:

Install directions:

– Copy in /PSP/GAME (firmware 1.5) or /PSP/GAME150 (firmware 1.5 compatibility for 3.xx OE release);
There are four different builds in archive:
1) 1.50 Kernel mode (psp_mame4all_v4.9r2);
2) 1.50 Kernel mode without neogeo and cps1 support (psp_mame4all_v4.9r2-noneogeo-nocps1);
3) 2.00 User mode (psp_mame4all_v4.9r2-usermode);
4) 2.00 User mode without neogeo and cps1 support (psp_mame4all_v4.9r2-usermode-noneogeo-nocps1);
Use psp_mame4all_v4.9r2 as installation base, then replace EBOOT.PBP with your needed/preferred build;
– Recreate zipped roms with included ClrMame compatible .DAT files (v0.34-v0.36 mixed roms);
– Add created zipped roms files in ROMs subfolder and samples in samples subfolder;
Samples must be in .sam old Mame pre-v0.35 format, downloadable from http://www.mameworld.net/samples/sam.htm

Specific Features:

– Based on latest MAME GP2X release v4.9;
– 480×272 full PSP Hires Support, now games with >320 orizz. and >240 vert. pixels are fully playable (Loderun, Galaga etc.);
– Overclock support, from 133 to 333 MHz;
– Fixed, Fixed Divided by 2, Software Scaled and Software Full Screen Stretched resolutions (all maximum 480×272);
– Frameskip as GP2X version (fixed 0-5, auto 1-5);
– Vsync on/off;
– Save configuration support, default and per game;
– 22KHz with 16 voices predefined sounds, 33KHz and 44KHz frequencies with 4, 8 and 16 voices combinations added;
– Preliminary analog support;
– Autocentering fix for all resolutions;
– Optimized compiled code as derived from GP2X version, but for PSP cpu (fastest graphics core!);
– Stripped & Packed executable, only 1.5MB;
– Original graphics theme from Gold edition (user mode version only);
– Music in menu (filename music.psp in data folder), in these supported formats: .MOD, .S3M, .IT, .XM and .OGG;
– Added, as bonus, 1st classified OldSkool at Assembly 2007 Music Competition (Commodore 64 based), in .OGG format;
– Graphic theme 480×272 BMP skins support, both pspmenu480.bmp and pspsplash480.bmp in folder skins (user mode version only);
– Dipswitches settings;

Specific Controls:

– Button SELECT: Insert credits.
– Button START: Play.
– Button HOME: after Pause exit game and return to menu.
– Buttons L+R: Activate/deactivate screen fixed/fixed div2/scale/stretch.
– Buttons L+R pressed during one second: Pause.
– Buttons L+HOME simultaneously: Reset emulation.

Fixed from 4.9r1

– Usermode builds now works.
– Dipswitches settings added.
– Some Z80 core speedups.
– Vector based games like Asteroids now run at native resolution of 480×272 pixels.
– Preliminary memory management to clean-up things in certain romset (due to original MAME bugs) before starting a new emulation.
– In case of memory fragmentation errors emulator now quits without lockups.
– Better sound support in certain games, like Teenage Mutant Hero Turtles etc.
– Graphics themes disabled in 1.50 kernel mode to gain more memory available, used a simple blue gradient instead.
– Graphics mode saved with settings.

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