qch_asm

Converts qChip assembly to chip8 instructions.

• uses spec.hpp file from qch_vm
• can handle labels used by jump instructions
• calculate label offsets with a fist pass (allows use before definition)
• add a way to specify data in assembly file

TODO

• add pseudo instructions? (loop, mul, div, etc.)
• add easy syntax for functions (auto calling conventions)
• add support for multiple source files
• add comments
• add support for other number bases (dec, bin, oct?)