Chapter 12

FPU Programmer’s Model

This chapter describes the programmer’s model of the Floating Point Unit (FPU). The Cortex-R4F processor is a Cortex-R4 processor that includes the optional FPU. In this chapter, the generic term processor means only the Cortex-R4F processor.

This chapter contains the following sections:

About the FPU programmer’s model on page 12-2

General-purpose registers on page 12-3

System registers on page 12-4

Modes of operation on page 12-10

Compliance with the IEEE 754 standard on page 12-11.

ARM DDI 0363E

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ARM R4F, r1p3 manual FPU Programmer’s Model