// PHX - PusH X Register
PusH X Register
// PHX - PusH X Register
func (cpu *CPU) op_phx(info *stepInfo) {
	if cpu.X == 1 {
		cpu.push(cpu.RXl)
	} else {
		cpu.push16(cpu.RX)
	}
}
func ( cpu * CPU ) op_phx ( info * stepInfo ) { if cpu . X == 1 { cpu . push ( cpu . RXl ) } else { cpu . push16 ( cpu . RX ) } }
PusH X Register
PusH X Register