Changes
/* Custom Chips */
40093 Spectrum +3 ROM 2 (English)
40120 PCW9xxx parallel printer controller ASIC
40226 CPC464 "cost-down" ASIC 40235? /CPC6128 "cost-down" ASIC(ARN4) (combines Gate Array, PAL, CRTC, and some small FDC/DRAM/RESET logic)
40489 CPC+ ASIC
40908 CPC+ cartridge protection chip ("ACID")
