bespokeasm VS customasm

Cool. If you want to upgrade from your excel/python assembler, you should be able to create a custom ISA with my assembler, BespokeASM: https://github.com/michaelkamprath/bespokeasm

Of course, I did what I do and I added support for this computer in my BespokeASM customizable assembler. This allowed me to write some larger projects than slu4's "minimal assembler" easily enabled. And with that, I ported my 32-bit primes calculation code to the slu4 Minimal CPU. What I found fascinating is that this code ran about the same speed (the PUTEY-1 is a small bit slower) in terms of how long it takes to find a prime value as the code runs on my PUTEY-1 breadboard TTL running at about one fourth the clock speed (480 KHz vs 1.8432 MHz). I attribute that to the more sophisticated ALU I built in my TTL CPU that does bit shifting (left and right) and value comparisons directly in hardware. Of course, I understand that the Minimal CPU's whole goal is to be minimal, I just still found this comparison interesting.

I took have worked on and developed a compiler that is actually read to encode stack operation including indirect value referencing with an address offset to get the mov a, [sp+2] type instructions. You can check it out here: BespokeASM. I have some more development to do with this assembler, notably around macros, includes, and other assembler directives, but the basics for the various addressing modes are in there and the ability to define your instruction set through configuration.

I'm using customasm to write code in Turing Complete.

also if you start writing programs for your own CPUs, use something like CustomASM so you don't have to write in machine code.

either way if you plan on doing more CPUs and similar in the future i highly recommend CustomASM.

The source code was in Python. I was able to debug it using Arduino-based adapter and (by using some "magic") translate into machine code binary. Since then I've switched to CustomAsm for code compilation and have other means to debug (emulator and debugger tool).

Even though technically not an emulators-related post, I'd like to share a tool I've recently learned came across and found to be really useful. It's called customasm and is open source. It can compile assembly of any kind as long as you feed it with (what's called) rules-definition. You can even write a higher level language profile (such as C, sort of) through it, the possibilities are countless, so to say.

I've got the documentation in the wiki! https://github.com/hlorenzi/customasm/wiki/User-Guide

Thanks to hlorenzi, making an assembler is a bunch of work. https://github.com/hlorenzi/customasm

anyways, it might be a good idea to throw the entire project on Github once it's done. stuff like schematics, BOM, details about the function of the CPU, maybe an Assembler (CustomASM is pretty good), also maybe a simulator version in something like Digital or Logisim so that people can look at it, write programs, or rebuild it with different parts and such

I used https://github.com/hlorenzi/customasm along with info from https://www.reddit.com/r/beneater/comments/cori8t/custom_asm_compiler_definition/