izaya/collapseos
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collapseos/cvm
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Virgil Dupras 224e9183fb cvm: fix NEWLN behavior 
I hadn't noticed yet, but making CVM use the Grid subsystem made
me lose scrolling. It's fine because that scrolling was "artificial"
in the sense that it was provided by curses, not Collapse OS and I
prefer having something that closer emulates a real machine.

However, CVM didn't properly clear the new line when entering it.
Fixed.

Scrolling behavior will come back when it's implemented in the Grid
subsystem.
2020-11-17 11:52:54 -05:00
..
.gitignore cvm: split stage and forth xcomp units 2020-11-14 15:00:03 -05:00
avra.sh Add alias and switch word types 2020-10-28 15:02:06 -04:00
common.fs cvm: split stage and forth xcomp units 2020-11-14 15:00:03 -05:00
forth.c cvm: fix NEWLN behavior 2020-11-17 11:52:54 -05:00
forth.fs cvm: fix NEWLN behavior 2020-11-17 11:52:54 -05:00
Makefile cvm: use Grid in /cvm/forth 2020-11-14 20:08:18 -05:00
README.md cvm: split stage and forth xcomp units 2020-11-14 15:00:03 -05:00
stage.bin cvm: split stage and forth xcomp units 2020-11-14 15:00:03 -05:00
stage.c cvm: split stage and forth xcomp units 2020-11-14 15:00:03 -05:00
stage.fs cvm: split stage and forth xcomp units 2020-11-14 15:00:03 -05:00
vm.c cvm: split stage and forth xcomp units 2020-11-14 15:00:03 -05:00
vm.h cvm: split stage and forth xcomp units 2020-11-14 15:00:03 -05:00
zasm.sh Add alias and switch word types 2020-10-28 15:02:06 -04:00

README.md

C VM

This is a C implementation of Collapse OS' native words. It allows Collapse OS to run natively on any POSIX environment.

Requirements

You need curses to build the forth executable.

Build

Running make will yield forth and stage executables.

Usage

To play around Collapse OS, you'll want to run ./forth. Refer to doc/intro.txt for help.

The program is a curses interface with a limited, fixed size so that it can provide a AT-XY interface. If you wish to change the size of that screen, you need to modify COLS and LINES in both forth.c and forth.fs.

You can get a REPL by launching the program with rlwrap(1) like this:

rlwrap -e '' -m -S '> ' ./forth /dev/stdin

Problems?

If the forth executable works badly (hangs, spew garbage, etc.), it's probably because you've broken your bootstrap binary. It's easy to mistakenly break. To verify if you've done that, look at your git status. If stage.bin is modified, try resetting it and then run make clean all. Things should go better afterwards.

A modified blkfs can also break things (although even with a completely broken blkfs, you should still get to prompt), you might want to run make pack to ensure that the blkfs file is in sync with the contents of the blk/ folder.

If that doesn't work, there's also the nuclear option of git reset --hard and git clean -fxd.

If that still doesn't work, it might be because the current commit you're on is broken, but that is rather rare.