Sunday, February 27, 2011

arithmetic and logic unit

The ALU

The ALU

The ALU or Arithmetic Logic Unit performs all the arithmetic or logical

The ALU or Arithmetic Logic Unit performs all the arithmetic or logical

arithmetic-logic unit: digital computer organization

arithmetic-logic unit: digital computer organization

Pictured below is a 1 bit ALU I designed.

Pictured below is a 1 bit ALU I designed.

This simulation component models a multi-function arithmetic-logic unit

This simulation component models a multi-function arithmetic-logic unit

A common plug-in ALU (Arithmetic Logic Unit) daughter board (Board #6282)

A common plug-in ALU (Arithmetic Logic Unit) daughter board (Board #6282)

8 BIT ALU (Arithmetic Logic Unit)

8 BIT ALU (Arithmetic Logic Unit)

Here is a diagram of the ALU design, for one bit. The carrys are rippled to

Here is a diagram of the ALU design, for one bit. The carrys are rippled to

The ALU logic circuit is here. I used a one-of-eight decoder for the AND

The ALU logic circuit is here. I used a one-of-eight decoder for the AND

Lab #5: One-Bit Arithmetic Logic Unit

Lab #5: One-Bit Arithmetic Logic Unit

Alu Wiki. Lisp conference design, ljubljana usually Wikipedia http , pmidmay

Alu Wiki. Lisp conference design, ljubljana usually Wikipedia http , pmidmay

Most calculations will take place in the ALU.

Most calculations will take place in the ALU.

 combinational logic circuit such as the arithmetic and logic unit (ALU).

combinational logic circuit such as the arithmetic and logic unit (ALU).

All arithmetic and logical instructions are carried out by the ALU.

All arithmetic and logical instructions are carried out by the ALU.

 arithmetic and logic unit

arithmetic and logic unit

The ALU, as its name implies, is that portion of the CPU hardware which

The ALU, as its name implies, is that portion of the CPU hardware which

This was an arithmetic logic unit you sit back and admire.

This was an arithmetic logic unit you sit back and admire.

A bit slice of an arithmetic logic unit

A bit slice of an arithmetic logic unit

1-bit ALU. The F inputs control the enable lines. As you can see,

1-bit ALU. The F inputs control the enable lines. As you can see,

This is the arithmetic logic unit of the CPU. It doesn't do a whole lot of

This is the arithmetic logic unit of the CPU. It doesn't do a whole lot of

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