297 Results for "homebrew cpu"

Homebrew CPU Webring
Log from JACA 1 & 2 Homebrew Computer
Now we are honoured to be featured on the great https://www.homebrewcpuring.org!!!Thanks!

Homebrew CPU webring
Log from Gigatron TTL microcomputer
My breadboard TTL color computer is now included in David R. Brooks' Homebrew CPU webring. How cool is that!In the meantime I have figured out how to mix video with application code. Next week we'll have a 5-day holiday, and if there are some rainy days...

ZX81 on Baffa-2 Homebrew Microcomputer
Log from ZX80/81 Homebrew Clone
A set of boards based on this project was my first design of boards for Baffa-2 Homebrew Microcomputer. As I already had my Homebrew Zeddie I decided to prioritize a CP/M machine.Now Baffa-81 is done :) more information at https://hackaday.io/project/188406-baffa-81-zx81-compatible-computerThere...

My homebrew Arduino Nano-based CP/M computer in action
Log from Homebrew CP/M-computer powered by Arduino Nano
My homebrew Arduino Nano-based CP/M computer in action (recording with TV tuner):power onmemory testCP/M loadingDIR commandvirtual screens toggleCPU testBASIC

Homebrew soft core
Log from nedoPC-5
In the last week I tried to create my own RISC-V soft core for this contest, but now contest is over and I was not able to achieve minimum requirements (100% passing RV32I compliance tests and ability to run RTOS Zephyr), but I've got really close...

Baffa-81: Running ZX81 on Baffa-2 Homebrew Computer
Log from Baffa-2 Homebrew Microcomputer
After all, I had to create a set of boards to clone my beloved first Sinclair ZX81 computer. Using the Baffa-2's CPU and Dual Clock board, it is possible to add 3 more boards to provide 32KB Ram/Rom, Keyboard and Cassette and Video I/O to build a ZX81...

Homebrew Computers & Transistors, and surely more...
Log from today's assorted project ramble "grab-bag"
Mid-May, just came across this draft from about a month ago... Still pondering the idea off-n-on....I'm almost certainly in no position to be, right now, but the past two months have finally calmed a bit, and I desperately need to feel like I'm accomplishing...

New sub-project describing the instruction set
Log from ECM-16/TTL homebrew computer
I created a new project related to this one for publishing the instruction set used by this ECM-16/TTL cpu. In that project all of the instructions are going to be presented and fully described in one place.

Added the clock to the Tell Time Contest
Log from 1 Square Inch TTL CPU
The clock that was built with the 1-square-Inch CPU was entered in the Tell Time Contest, you can see the entry HERE. And a few months ago, this CPU was featured on Hackaday !I also entered another clock to the contest, the Forklift...

State Machine and instruction types
Log from ECM-16/TTL homebrew computer
When I was coming up with new Register Transfer Scheme, and in general while rethinking the design approach for this CPU, I realised that the explicit state machine will be the way to go. At the time I thought it would consist of quite a few of...

General bit layout for instruction types
Log from Instruction Set for ECM-16/TTL homebrew cpu
All instructions are 16-bit wide (1 word), with optional extension of 16 more bits for immediate value needed for some of these instructions. Bit patterns for the instruction types: bits in instruction word: FEDC BA98 7654 3210 [extension]...

Yet another subproject
Log from ECM-16/TTL homebrew computer
Just a note: I have created a new subproject for describing the assembly language to use with my CPU, and tracing some progress in development of assembler program.

Homebrew
Log from µGame
This device I'm building is not very beginner-friendly. It uses all SMD components, a bare displays screen, needs you to flash the bootloader to a bare chip and compile your own CircuitPython, etc. Quite a bit of work, to be honest. On the other hand,...

Brief Update...
Log from Blinkenrechner
I built my 2nd revision CPU (dubbed Zeta-2 because obviously it needs a badass name) and tested it's basic functionality. Manually operating the control lines, I was able to run each subsystem of the CPU and add, subtract, etc numbers. However, a number...

Shift-left for ALU?
Log from Memory Shift
With two working registers, this makes for, say, the shift-left portion of a 4-bit homebrew ALU/CPU...With two separately-controlled DRAM banks, or one and a register, could easily serialize any nibble stored anywhere...I *think* this could be used for...

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