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10/5/08

CS 641 Fall 2000

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8 more classes

Web
paper status reports due Nov 27, Dec 4, 11
Two
sections

What has been done so far
What will be done by next
status report


Web
page is due at final exam

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CS 641 Fall 2000

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Tomasulo Loop Example

Loop: LD  F0 0 R1

  MULTD F4 F0 F2

  SD  F4 0 R1

  SUBI  R1 R1 #8

  BNEZ  R1 Loop

Assume
Multiply takes 4 clocks
Assume
first load takes 8 clocks (cache miss?), second load takes 4 clocks
(hit)
To
be clear, will show clocks for SUBI, BNEZ

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CS 641 Fall 2000

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Loop Example Cycle 0

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Loop Example Cycle 1

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Loop Example Cycle 2

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Loop Example Cycle 3

Note: MULT1
has no registers names in RS

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Loop Example Cycle 4

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