plasticbugs.smashtv - 0.1.0

plasticbugs Sep 20, 2026

Smash T.V. Williams, 1990

The twin-stick arena shooter on the Midway Y-unit board: a TMS34010 graphics processor, a DMA blitter drawing into a 512x512 frame buffer, and the Williams CVSD sound board (6809, YM2151, DAC and CVSD speech). All of it is in the gateware, written against MAME and checked against it instruction by instruction and pixel by pixel.

ROMs are not included. Build the image from your own MAME smashtv romset with mra_build.py and smashtv.mra, and copy it to Assets/smashtv/common/smashtv.rom

• D-pad moves
• X B Y A fire up, down, left, right
• Select coin, Start start

The first boot says FAILURE IN CMOS RAM and restores its defaults. That is the game finding a blank memory, as a cabinet with a flat battery would.