Relocation

[narpfel]

Use case: morse.yay.

Currently, stuff like LUTs must be defined before using them. This results in the data for the LUT being located before the program code. This may upset disassemblers when the data bytes are not valid machine code (e. g. ending in a cut off multi byte opcode).

It would be better to define data segments at the start of the program and then relocate them to the end of the code segment. This could be accomplished by generating a mutable address container rather than the final address on the first pass. On another pass, these containers could be filled with the real addresses.

This would also make the jmp and call mnemonics that automatically select the right opcode easier.

The results of Program.after_code_segment would automatically be inserted at the end of the code segment, but it would be called before Program.main.