def PHA(cpu: CPU6502):
cpu.push_value_on_stack(cpu.state.a)
return 0
def PHP(cpu: CPU6502):
cpu.push_value_on_stack(cpu.state.status | Flags6502.B | Flags6502.U)
return 0
def BRK(cpu: CPU6502):
cpu.state.pc += 1
cpu.push_program_counter_on_stack()
cpu.push_value_on_stack(cpu.state.status | Flags6502.B | Flags6502.U)
cpu.load_program_counter_from_addr(0xFFFE)
return 0
