nofuss

Compiler for the WolfCore cpu architecture

Does not support:

• functions because
• … it does not support scoping (yet, might be handy)
• any other datatype then signed int
• syntax checking (it will simply say “syntax error”, lovely…)
• pretty coding: this thing (the compiler itself) uses external variables all over the place, and does not free memory after allocation
• dynamic memory (might be interesting to implement, so lets see in the future)

It will support (hopefully):

• if/else construction (check, done!)
• while loops
• pointers to variables

How does it work:

It is a stack based machine: all expressions will be evaluated by pushing values on the stack (literals, previous results or things copied from hte heap), and popping them (copy to the heap, evaluate if/else or while loops).

Registers used:

• R0: stack register, this is a ptr to an “empty box” not to the latest value added
• R1: second operand register for operations requiring two inputs (add, bit shift, etc.)
• R4: value of heap base