MIPS R4000 Floating Point Stages

• Several different pipelines with different lengths!

• Add,Subtract- 4 clocks:U S+A A+R R+S

• Multiply - 8 clocks: U E+M M M M N+A R

• Divide- 38 clocks: U A R D(28) D+A D+R D+R D+A D+R A R

• Square Root- 110 clocks: U E (A+R)(108) A R

• Negate- 2 clocks: U S

• Absolute Value- 2 clocks: U S

• Floating Point Compare- 3 clocks:U A R

SGI Workstations at NPAC 1995

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