I wondered if anyone knows anything about the CPU in MOS' videogame chips? They made the MPS-7600 (NTSC) and 7601 (PAL), in several variants depending on the game type (pong, pinball)
I
posted here about it, with many links to various pages each with only a line or two of relevant info (a few describing the chip as MOSTek's.) From
here we get:
Quote:
Telstar Arcade is therefore of the earliest system to use cartridges containing a dedicated game chip. Each cartridge contains a chip made by MOS Technology: the MPS-7600. The four versions of this chip contain customised circuits because of the types of games, but they all use the same technology: a basic frame processor that controls the circuits, driven by a small program in ROM (the 8 PONG games chip has a 512-word program). Therefore, the MPS-7600 chips are not like the other PONG chips: they are customized microcontrollers.
From
here we get:
Quote:
The graphic display of this system is very good for the era and is in color.
It seems the MPS (plastic) part number was preceded by the MCS part (presumably ceramic and presumably much the same design). The chips were used by many companies making cheap pong-style TV games.
It would be easy to guess that it's a 6502 core, but I've seen nothing to say so. The ROM is on-chip and seems not to have been recovered by anyone.