1/10/2024 0 Comments 2016 cpu transistor countThe primary limit to the clock speed is the gate capacitance of the MOSFETs that we are using, which is much larger than the capacitance of the MOSFETs on an original 6502 die.Ĭan you hook it up inside an Apple ][ and run Oregon Trail? The maximum reliable clock rate is around 50 kHz. The MOnSter 6502 runs at about 1/20th the speed of the original, thanks to the much larger capacitance of the design. More, we have been working towards a public launch, currently planned for mid-2023, building the MOnSter into a shadowboxĮnclosure complete with a tiny hidden "motherboard" that the CPU sits in, so that it can run demonstration programs even without being plugged into a separate computer.ĭoes it run at the full speed of an original 6502 chip? In the process of doing so, we have built up a single-board computer (a tiny motherboard) that uses the 6502 as its CPU, such that you can either use a socketed (vintage) 6502 IC, or the MOnSter 6502 through a cable. Since the 6502 is just a microprocessor (CPU), about half of our work on the project (and most of our work since the first prototype) has actually been building up the capabilities around this processor - adding interfaces for a keyboard, monitor, and programming - so that you can actually use it. Our second prototype, a year later, fixed a few issues that we encountered when bringing up the first version (removing all of the patch wires) but also added over 100 additional LEDs, including one for every instruction decode line on the 6502's decode ROM. We brought it up to the stages of successfully running various programs in assembly, BASIC, and Forth. The first full-scale prototype was publicly demonstrated at the 2016 Bay Area Maker Faire. Headed towards a full public launch delayed a bit by COVID. What is the current status of the project?
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