Pipeline code was unreadable up until now, this also fixes a bug:
* Some roms have illegal instructions right after branch instructions, and
the cpu would error trying to decode them because of pipelining.
Former-commit-id: e3201c7b0d2adfc772231a3e2d5909f43c17b50f
And this kids, is why you don't ever assume what an instruction does
without reading the manual.
Also, I called the ThumbFormat enum variant "LdrAddress", so I went
ahead and implemented as an ldr_str :/
Former-commit-id: f13833d16fba07565a0aba9d247d9754dbfc3d39
Manually testing seems to work, too lazy to write any tests now,
Will do it after all instructions are complete, buggy or not.
Former-commit-id: 0f36c81d6451c706408dd3c4815bfb3abea1ff44
This isn't accurate, I'm probably missing something but at least it'll
make the instruction implementation more clean for now..
Former-commit-id: de24b15e1a51e1998207e5ea96fc8543f2553a26
TODO add more tests for all the instructions I've got implemented so
far.
Also, I need to rewrite the whole "sysbus" module again because it's
crap and I keep refactoring it as I go.
I've added the "Dummy" because the bios for some reason tries to memzero
an unmapped region on the work ram (the thumb loop that ends at 0x126)
Former-commit-id: 67befd0935ee10df9ac8ceeaebd14f69767a7f16
