llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-18 10:31:57 +00:00

History

Reid Spencer 535c619e2b WHILE does not "pop" a value, it "examines" to top of stack. Make this clear in the applicable comment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21682 91177308-0d34-0410-b5e6-96231b3b80d8		2005-05-04 15:33:48 +00:00
..
Lexer.l
Makefile	Get rid of drivel.	2004-10-28 01:25:28 +00:00
README
StackerCompiler.cpp	WHILE does not "pop" a value, it "examines" to top of stack. Make this	2005-05-04 15:33:48 +00:00
StackerCompiler.h	Eliminate tabs and trailing spaces	2005-04-23 21:26:11 +00:00
StackerParser.y

README

This directory contains a sample language front end for LLVM.

It is a *very* simple/crude implementation of FORTH. It has many
deficiencies but provides enough basics to give you an idea of 
what programming a new language front end for LLVM  looks like.

To keep things simple, Stacker has the following limitations:
1. Only a single, global stack is manipulated.
2. There is no interpretation, everything is compiled.
3. There's no type/bounds checking .. you're on your own.
4. There's no floating point support.
5. Only stdin can be read. Only stdout can be written. No other 
   file I/O is supported.

As such, this isn't a very useful language for anything other than
the most trivial of programs. It is, however, a good learning tool
(for both the author and the student).

Reid Spencer
16 November 2003