The Zx Spectrum Ula How To Design A Microcomputer Pdf 57l May 2026
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In 1982, British entrepreneur Sir Clive Sinclair unleashed the ZX Spectrum onto an unsuspecting world. For many, it was their first encounter with a color home computer. But beneath the rubber keyboard and the iconic rainbow stripe lay a secret weapon: the (Uncommitted Logic Array). Specifically, the Ferranti ULA (5C112E, later 6C001E-7).
One of the most complex aspects of the Spectrum design is memory sharing. The Z80 CPU and the Video circuitry both need access to RAM. The Zx Spectrum Ula How To Design A Microcomputer Pdf 57l
Before this book was published, recreating a perfect ZX Spectrum clone on an FPGA was difficult because the exact timing of the ULA was unknown. Smith’s work allowed for the creation of accurate hardware clones (such as those running on MiSTer or other FPGA platforms). In 1982, British entrepreneur Sir Clive Sinclair unleashed
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