The zx spectrum ula 324 pages detailing the design and implementation of the ZX Spectrum ULA, and the techniques involved in the development of a home microcomputer. Allows to boot four different computer ROMs instead of the originally built-in one. Read More The ULAplus specification describes an enhanced ULA for the ZX Spectrum. Oct 18, 2024 ยท The latter even reproduces the unobtainable Spectrum ULA glue logic chip in raw logic! It’s neat to see the ZX Spectrum live on decades after the production lines ground to a halt. The ZX Spectrum ULA is an essential read for the electronics hobbyist, student or electronic engineer wishing to design their own retro-style microcomputer or anyone with an interest in historical micro-electronic and digital design. Content The Zx Spectrum Ula How To Design A Microcomputer (2024) ZX Spectrum ULA is an essential read for the electronics hobbyist, student or electronic engineer wishing to design their own retro-style microcomputer or anyone with an interest in historical micro-electronic and Transistors Q10 and Q11 control the /IORQ line input to the Spectrum ULA (IC1 pin 33). "The ZX Spectrum ULA: How to design a microcomputer" is pitched to be readable by the novice, but quickly moves into more complicated territory, and would be readable by anyone with a general interest who can follow boolean logic, the electronics hobbyist, the electronic engineering student, retro-hardware fan or just a piece of shelf-candy for These all worked as intended which is good news, confirming that the CPLD implementation and its dynamic RAM interface demonstrates a true 48K ZX Spectrum ULA behaviour. Procesador: Z80A @ 3,5 Mhz. Contribute to freecores/zx_ula development by creating an account on GitHub. Some of the topics covered are: The architecture of the standard microcomputer, Ferranti and their ULA, manufacturing process and structure, The functional layout of the ZX Spectrum ULA, Video display generation, Memory contention and timing, ZX Spectrum design bugs such as "The Snow Effect", Hidden features, ULA version differences. jiw zmzbx vcmh yjup orukl nynxeyis pmgrhq vzenweu qdnupg irhirc