• Continue to Read Chapter 8. Machine Architecture
• Quiz on Wednesday

• Memory

  0 1 2 3 4 5 6 7 8 9

  +-+-+-+-+-+-+-+-+-+-+

  00 | | | | | | | | | | |

  +-+-+-+-+-+-+-+-+-+-+

  10 | | | | | | | | | | |

  +-+-+-+-+-+-+-+-+-+-+

  20 | | | | | | | | |

• CPU
  • Instructional Pointer register

    +-+-+-+-+-+-+-+-+

    | | | | | | | | | IP

    +-+-+-+-+-+-+-+-+

  • Instruction Register

    +-+-+-+-+

    | | | | | IR

    +-+-+-+-+

  • Arithmetic Register/Accumulator/Computational

    +-+-+-+-+-+-+-+-+-+-+

    | | | | | | | | | | | AX

    +-+-+-+-+-+-+-+-+-+-+

  • Condition Flag

    +-+

    | | CF

    +-+

	copy	ax, x
	add	ax, y
	copy 	z, ax

	z := x + y;

• Get instruction from memory
• Carry out instruction

• Right to Left movement

• like getInt and setInt
• deals only with integers

number.as

sum.as

• cmp instruction
• jmp, jnb, jb instructions

largest.as

summer.as