A preprocessor for the VirtualCircuitBoard assembler that enables local labels. For example,
@ foo
@ .bar
jmp .bar
expands out to
@ foo
@ foo_bar
jmp foo_bar
This enables one to reuse common labels like .loop, .done, etc. For instance, we can re-use .bar, and we can still refer to foo.bar by using its full name:
@ baz
@ .bar
jz foo.bar
jmp .bar
The preprocessor expands this out to
@ baz
@ baz_bar
jz foo_bar
jmp baz_bar
Usage: in the terminal, run
python preprocessor.py test.vcbasm test-out.vcbasm
If this is the final stage before running the simulator, you'll want to have the output file be named your-circuit-path.vcbasm
There is no error catching implemented. Malformed input may not result in an error message/crash, but will likely produce broken code.