Controls use of AMD K6 3D calling conventions.

This pragma is compatible with the following platform targets:

68K

PowerPC

NEC V800

Intel x86

MIPS

Embedded 68K

This pragma tells the x86 compiler to generate code for AMD K6 3D and Intel MMX extensions. This option causes the compiler to generate code that will only run on processors that are equipped with the circuitry needed to execute these specialized instruction sets. This pragma generates code that requires fewer register operations at mode switching time.

This pragma corresponds to the MMX + K6 3D option in the Extended Instruction Set menu of the x86 CodeGen settings panel.

To learn more about this pragma, read the Targeting Win32 manual.