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Recreating a Homebrew Game System from 1987

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Z80 TV Game

Introduction

The specifications are as follows:

4MHz Z80 processor (The timing of the video circuit is derived from a source separate to the computer, so running the CPU at a higher clockspeed would be fairly simple.)

Address space of 32KB for ROM cartridges (ROMs larger than 32KB should be possible with bank switching.)

16KB of system ROM

8KB of separate video RAM

168x210 pixel black/white graphics

60Hz composite video output

1-bit audio output

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