Pioneer PX-7 1984 Japanese MSX1 with LaserDisc controller support, 32kB RAM, stereo PSG, superimpose (not emulated outside LaserDisc support). MSX jp 16000 jp_jis false true true false TMS9928A 21000 0 -100 100 false px-7_basic-bios1.rom 302afb5d8be26c758309ca3df611ae69cced2821 px-7_pbasic.rom 665d805f96616e1037f1823050657b7849899283