WIP - Jak 2 Support

[xTVaser]

Changes So Far

• The disassembly will not abort on the first sign of failure, it will try disassembling every file, and if a symbol cant be resolved it gets replaced with ???. This is mostly to speed up resolving issues, solving the ones that effect multiple files first and foremost.

Active Issues:

• id 25 support needs to be added
• assertion failures in link.cppL529
  • this is immediately before the issue referenced here, perhaps it's related Misaligned address in linker idea rmitton/goaldis#4
• mtnext-vis: (00010060) Unknown SPECIAL opcode r0, r1, r0, 0x01, 0x20 is a unique one
• Frequently across many files, the id 8191 tries to be resolved when the symbol table only contains <1000 elements. This fails, but with this being so consistent it is a very weird bug that needs to be tracked down.

Questions / Confusion:

• I don't currently understand how the parentTypeSym was determined when calling set_fixed_type aka the third argument. At first I thought I saw a pattern, but now I'm not so sure. Take the following snippets from InitHeapAndSymbol

set_fixed_type(0x1c,"object",iVar4 + 0x801d,4,unaff_retaddr,in_stack_fffffff8);
set_fixed_type(0x6c,"structure",iVar4 + 0x801d,4,unaff_retaddr,in_stack_fffffff8);
set_fixed_type(0xc,"basic",iVar4 + 0x806d,4,unaff_retaddr,in_stack_fffffff8);
set_fixed_type(0x90,"kheap",iVar4 + 0x806d,0x10,unaff_retaddr,in_stack_fffffff8);

As is described in machine.cpp, a structure's parent is an object, and an object's parent is itself. This seems to follow from the 3rd arguments being the same. However, in machine.cpp, basic's parent is described as being a structure. Where as if we follow the same pattern, basic is the base type, and other types likes kheap are children of it.

Differences between Jak 1 and Jak 2 so Far

• Jak 2's Symbol Table is 0x10000 bytes larger

Jak 3 Support Hell Fun

• Looks like they modified the file headers, the version number is not where its expected to be in jak 1/2

Cleanup that I sloppily added:

• Look into the disasm functions, ive just been copy and pasting them for the most part, and this is very likely wrong!
• Add back CLI usage / allow decompression