hanchenye-llvm-project/llvm/projects/Stacker/lib/compiler
Reid Spencer 7063d1aa71 WHILE does not "pop" a value, it "examines" to top of stack. Make this
clear in the applicable comment.

llvm-svn: 21682
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 Changes For Bug 352 2004-09-01 22:55:40 +00:00

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