Chapter 6
152 MIPS R4000 Microprocessor User's Manual
6.1 Overview
The FPU operates as a coprocessor for the CPU (it is assigned coprocessor
label CP1), and extends the CPU instruction set to perform arithmetic
operations on floating-point values.
Figure 6-1 illustrates the functional organization of the FPU.
Figure 6-1 FPU Functional Block Diagram
FAdd
Data Cache
FP Bypass
Pipeline Chain
FCU
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FP Sqrt
FP Mul
FP Div
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FP Reg File
Control
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