RealView® ARMulator® ISS User GuideVersion 1.4.3
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4.4.12. ARMulif_CPRead

This function calls the read method for a coprocessor.

Syntax

int ARMulif_CPRead(RDI_ModuleDesc *mdesc, unsigned cpnum,
                   unsigned reg, ARMword *data)

where:

mdesc

is the handle for the core.

cpnum

is the number of the coprocessor.

reg

is the number of the coprocessor register to read from, as indexed by CRn in an LDC or STC instruction.

data

is a pointer for the data read from the coprocessor register. The number of words transferred, and the order of the words, is coprocessor dependent.

Return

The function must return:

  • ARMul_DONE, if the register can be read

  • ARMul_CANT, if the register cannot be read.

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