Sx assembler

Work is in progress on a boost.spirit based SX assembler, written in C++. update: I'm reconsidering writing the grammar of the assembler in ANTLR instead of spirit, so that i could use the same grammar in Java (eclipse) and C++ (tool chain).

The sx assembler consists of 2 parts:

• frontend; create a syntax tree out of the program text. There is a working spirit grammar without actions (the actual tree building). Open items are:
  • include
  • macros
  • recognizing opcodes that start in the label column (the first column). Currently, a word that starts in the first column will be parsed as a label, never as an opcode.
• backend; create a list- and hex-file out of the generated parse tree.