MOS6502...
CPU --> MOS6502
move registers from CPU into MOS6502
move requestIrq() from CPU into MOS6502
refactor CPU
move stack op from CPU into MOS6502
refactor MOS6502
comment out registersNew
comment out flagsNew
move irq handle logic from CPU into MOS6502
refactor
refactor MOS6502.doIrq()
refactor MOS6502