https://github.com/kyle-verhoog/vei

Java 3 compiler, targeting x86 written in Scala
https://github.com/kyle-verhoog/vei

Last synced: about 2 months ago
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Java 3 compiler, targeting x86 written in Scala

• Host: GitHub
• URL: https://github.com/kyle-verhoog/vei
• Owner: Kyle-Verhoog
• Created: 2019-08-22T03:03:38.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2019-08-22T03:06:20.000Z (over 5 years ago)
• Last Synced: 2024-10-13T02:11:55.999Z (3 months ago)
• Language: Java
• Homepage:
• Size: 18.7 MB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# How to run

Run `make` to compile and `./joosc` to run the compiler

# Manual procedures

We rely on a serialization of the DFA we are going to use. To create the DFA you need to read in a .lex file, use Scanner.fromConfig(tokensDefn) on that file, and

then you need to run Scanner.serializeDfa() on that dfa

The grammar is defined in the grammar.json file, make any edits here

After this run the parseGrammarJson.rb file on this json file to create the .cfg file

Once you have a .cfg file you can run the Jlalr1.parse() function on this file to create the parse table, put this in a .lr1 file

You can use the Parser.readInLr1() function to read this in and create a CFG object that is used to actually perform parsing