Mike PureZX
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Description
ZX Spectrum Harlequin Paged ROM
This project adds multiple ROMs to the ZX Spectrum Harlequin. The Spectrum ROM is 16k bytes in size, it's replaced in the Harlequin board design by a 27C128 EPROM. This board uses a 27C020 EPROM as a 16 x 16k paged ROM. The active ROM image is selected by a HEX encoded rotary switch and the currently active ROM is shown on a HEX LED display (TIL311 display is optional).
I've now uploaded an example ROM image. The image is a binary dump and contains 16 Spectrum ROM images including IF2 games, unreleased IF2 games, BASIC (of course) and Spectrum test code.
Code
Nov 27,2022
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ZX Spectrum Harlequin Paged ROM
This board replaces the 27c128 EPROM for the ZX Spectrum Harlequin with a 27C020 EPROM holding 16 16k ROM images.
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Published: Nov 27,2022
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- Florin Jan 31,2024
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