Outline

3/18/98


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Table of Contents

Outline

Parallel Addition with Accumulator

Fractions

Floating-Point

Floating-Point

Floating-Point

Floating-Point

Floating-Point

Floating-Point Operations

Floating-Point Operations

IEEE Floating-Point Standard

IEEE Floating-Point Standard: Terminology

But How to Compute Pij?

Multiplication

Multiplication

Multiplication

Multiplication: Some Variations

4x4 Non-Additive Multiply Module (NMM)

Wallace Tree Using 4x4 NMM

Fixed-Point Division

Divisor Reciprocation

Convergence Division

Arithmetic Logic Unit (ALU)

Arithmetic Logic Unit (ALU)

NMM: Combinational Implementation

Pipelined Implementation

Bandwidth and Latency

Simple Dataflow Description: B^2 - 4AC

Scheduling of Functional Units

Allocation of Functional Units: Data Dependencies

Allocation of Functional Units: Time-Space Tradeoffs

Allocation of Functional Units: Sharing of Signal Links

Allocation of Functional Units: More Efficient Use of Links

Email: pister@eecs.berkeley.edu

Home Page: http://www-inst.eecs.berkeley.edu/~cs150