retroforth

History

crc 428ba86dba native: linker script for flat binary, load custom gdt FossilOrigin-Name: 17b49b731d236d0978e836e6902615fb53ccf1018289966509620dc6c9111cd7		2018-01-31 18:42:42 +00:00
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bin	move experimental/ to interface/native	2018-01-31 18:26:06 +00:00
386.ld	move experimental/ to interface/native	2018-01-31 18:26:06 +00:00
386.s	native: linker script for flat binary, load custom gdt	2018-01-31 18:42:42 +00:00
386flat.ld	native: linker script for flat binary, load custom gdt	2018-01-31 18:42:42 +00:00
fbsd.s	move experimental/ to interface/native	2018-01-31 18:26:06 +00:00
fbsd64.s	move experimental/ to interface/native	2018-01-31 18:26:06 +00:00
image.c	move experimental/ to interface/native	2018-01-31 18:26:06 +00:00
linux.s	move experimental/ to interface/native	2018-01-31 18:26:06 +00:00
Makefile	native: linker script for flat binary, load custom gdt	2018-01-31 18:42:42 +00:00
README.md	move experimental/ to interface/native	2018-01-31 18:26:06 +00:00
retro.c	move experimental/ to interface/native	2018-01-31 18:26:06 +00:00

README.md

| _ \ | | _ / _ \ / / | | | /_ | \ \ / / __| | / | | | | / () | / / | .` |/ _ | | | | \ V /| | ||_| || ||\/ // ||_// __| || _/ ||

This directory contains some experiments in building a RETRO system to run directly on hardware. As a stepping stone, it also includes some builds which require a host kernel, but no standard C library.

Initial Objectives:

Reuse as much of the existing VM implementation (in C) as possible.
Don't require a full blown kernel & userland to run
Work with a completely standard RETRO image
Minimally viable system: the basic listener (REPL)
Work on 32-bit x86 systems

Future Goals:

Support for more processors
- x86-64
- ARM (32-bit)
- ARM (64-bit)
- RISC-V
- MIPS M4K (PIC32)

Current Status:

Working builds w/minimal host dependencies:
- FreeBSD (32-bit, x86)
- FreeBSD (64-bit, x86)
- Linux (32-bit, x86)
- Native (32-bit, x86, multiboot)