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#### 9.27.12 Directives to control generation of MIPS ASE instructions

The directive `.set mips3d` makes the assembler accept instructions from the MIPS-3D Application Specific Extension from that point on in the assembly. The `.set nomips3d` directive prevents MIPS-3D instructions from being accepted.

The directive `.set smartmips` makes the assembler accept instructions from the SmartMIPS Application Specific Extension to the MIPS32 ISA from that point on in the assembly. The `.set nosmartmips` directive prevents SmartMIPS instructions from being accepted.

The directive `.set mdmx` makes the assembler accept instructions from the MDMX Application Specific Extension from that point on in the assembly. The `.set nomdmx` directive prevents MDMX instructions from being accepted.

The directive `.set dsp` makes the assembler accept instructions from the DSP Release 1 Application Specific Extension from that point on in the assembly. The `.set nodsp` directive prevents DSP Release 1 instructions from being accepted.

The directive `.set dspr2` makes the assembler accept instructions from the DSP Release 2 Application Specific Extension from that point on in the assembly. This directive implies `.set dsp`. The `.set nodspr2` directive prevents DSP Release 2 instructions from being accepted.

The directive `.set dspr3` makes the assembler accept instructions from the DSP Release 3 Application Specific Extension from that point on in the assembly. This directive implies `.set dsp` and `.set dspr2`. The `.set nodspr3` directive prevents DSP Release 3 instructions from being accepted.

The directive `.set mt` makes the assembler accept instructions from the MT Application Specific Extension from that point on in the assembly. The `.set nomt` directive prevents MT instructions from being accepted.

The directive `.set mcu` makes the assembler accept instructions from the MCU Application Specific Extension from that point on in the assembly. The `.set nomcu` directive prevents MCU instructions from being accepted.

The directive `.set msa` makes the assembler accept instructions from the MIPS SIMD Architecture Extension from that point on in the assembly. The `.set nomsa` directive prevents MSA instructions from being accepted.

The directive `.set virt` makes the assembler accept instructions from the Virtualization Application Specific Extension from that point on in the assembly. The `.set novirt` directive prevents Virtualization instructions from being accepted.

The directive `.set xpa` makes the assembler accept instructions from the XPA Extension from that point on in the assembly. The `.set noxpa` directive prevents XPA instructions from being accepted.

The directive `.set mips16e2` makes the assembler accept instructions from the MIPS16e2 Application Specific Extension from that point on in the assembly, whenever in MIPS16 mode. The `.set nomips16e2` directive prevents MIPS16e2 instructions from being accepted, in MIPS16 mode. Neither directive affects the state of MIPS16 mode being active itself which has separate controls.

The directive `.set crc` makes the assembler accept instructions from the CRC Extension from that point on in the assembly. The `.set nocrc` directive prevents CRC instructions from being accepted.

The directive `.set ginv` makes the assembler accept instructions from the GINV Extension from that point on in the assembly. The `.set noginv` directive prevents GINV instructions from being accepted.

The directive `.set loongson-mmi` makes the assembler accept instructions from the MMI Extension from that point on in the assembly. The `.set noloongson-mmi` directive prevents MMI instructions from being accepted.

The directive `.set loongson-cam` makes the assembler accept instructions from the Loongson CAM from that point on in the assembly. The `.set noloongson-cam` directive prevents Loongson CAM instructions from being accepted.

The directive `.set loongson-ext` makes the assembler accept instructions from the Loongson EXT from that point on in the assembly. The `.set noloongson-ext` directive prevents Loongson EXT instructions from being accepted.

The directive `.set loongson-ext2` makes the assembler accept instructions from the Loongson EXT2 from that point on in the assembly. This directive implies `.set loognson-ext`. The `.set noloongson-ext2` directive prevents Loongson EXT2 instructions from being accepted.

Traditional MIPS assemblers do not support these directives.

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