4 ms·
This reminds me of the Gigatron, a even more minimalistic processor. https://gigatron.io/ https://gigatron.io/
by fjfaase 7y ago
This reminds me of the Gigatron, a even more minimalistic processor. https://gigatron.io/ https://gigatron.io/
- tyingq 7y agoOn the other end of the complexity scale, a 6502 made with TTL chips: https://c74project.com/ https://c74project.com/ Or the Magic1. Similar total count of 74x chips (~200), but he ported Minix2 to it. http://www.homebrewcpu.com/ http://www.homebrewcpu.com/
- fjfaase 7y agoI guess that the 6502 has about four times as many NAND-gates as the Gigatron. I understand that some people are working on emulator for 6502 code for the Gigatron. The Gigatron is a bit (extreme) risc processor. It has no micro code and the instruction decoding consists of a matrix a simple diode matrix. This results in many instructions that perform the same operation or no operation at all. The Gigatron runs a program that generates the VGA signal (with reduced resolution) and an emulator for a 16-bits CIS processor. The actual programs executed by the Gigatron are written for the emulator.