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REGFILE Compiler Directive

Abbreviation

RF

Arguments

A file name enclosed in parentheses.

Default

None.

µVision

Options — C166 — Global Register Coloring.

Description

The REGFILE directive instructs the compiler to use a register definition file for global register optimization. The register definition file specifies the registers used by external functions. Using this information, the compiler can optimize the use of the general purpose registers. This feature enables global program-wide register optimization. The name of the REGFILE must be identical across the complete project.

Refer to the REGFILE linker directive and to Global Register Coloring for more information.

Example
C166 SAMPLE.C REGFILE(sample.reg)

#pragma REGFILE(sample.reg)
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