def RTI(cpu: CPU6502): cpu.state.status = cpu.pop_value_from_stack() cpu.state.set_flag(Flags6502.U, 1) cpu.state.set_flag(Flags6502.B, 0) cpu.pop_program_counter_from_stack() return 0
def RTS(cpu: CPU6502): cpu.pop_program_counter_from_stack() cpu.state.pc += 1 return 0