Cinematronics CPU Microcode PROMs Placement Copyright 1978 Cinematronics. Program by Larry Rosenthal. NAME LOCATION SIZE CHECKSUM --------- -------- ---- -------- Prom.c14 C14 74S288 12EF Prom.d14 D14 74S288 115A Prom.e14 E14 74S288 0837 Prom.e8 E8 74S288 1DAB Prom.f14 F14 74S288 0BAB Prom.j14 J14 74S288 1DFB The code is burned into 74S288 PROMs. These are the same PROM type as found in the Atari Battlezone, Red Baron and Tempest mathboxes.