History

Virgil Dupras def6c2123d tools/emul: clean up the place a bit		2019-05-17 07:23:59 -04:00
..
libz80@8a1f935daa	Add tools/emul	2019-05-09 12:58:41 -04:00
shell	tools/emul: clean up the place a bit	2019-05-17 07:23:59 -04:00
zasm	tools/emul: clean up the place a bit	2019-05-17 07:23:59 -04:00
.gitignore	zasm emul: add tooling for includes fsdev	2019-05-16 12:07:57 -04:00
Makefile	tools/emul: clean up the place a bit	2019-05-17 07:23:59 -04:00
README.md	Add tools/emul	2019-05-09 12:58:41 -04:00
bin2c.sh	Add tools/emul	2019-05-09 12:58:41 -04:00

README.md

emul

This is an emulator for a virtual machine that is suitable for running Collapse OS. The goal of this machine is not to emulate real hardware, but rather to serve as a development platform. What we do here is we emulate the z80 part, the 64K memory space and then hook some fake I/Os to stdin, stdout and a small storage device that is suitable for Collapse OS's filesystem to run on.

Through that, it becomes easier to develop userspace applications for Collapse OS.

We don't try to emulate real hardware to ease the development of device drivers because so far, I don't see the advantage of emulation versus running code on the real thing.

Usage

First, make sure that the libz80 git submodule is checked out. If not, run git submodule init && git submodule update.

The Makefile in this folder has multiple targets that all use libz80 as its core. For example, make shell will build ./shell, a vanilla Collapse OS shell. make zasm will build a ./zasm executable, and so on.

See documentation is corresponding source files for usage documentation of each target.