fixed rom parsers
more to public api
hex printing
runs nestest rom
refactoring, absolute arg can be used in non pointer manner also
opcode jmp
better cpu debug print
fixes to run test rom, the reset vector shall be at c000, special for the test rom
fixed jsr bug
implemented nop
fixed branch bug
implemented bit test op
added missing branch ops
More clean end contition for runCpu
Parsing Ppu regs
Main loop
added exports to run tests
fixed bug in bit test op