# m80387

Specifies whether the compiler can use x87 instructions.

## Syntax

Linux: | -m80387 -mno-80387

macOS: | -m80387 -mno-80387

Windows: | None

## Arguments

None

## Default

-m80387 | The compiler may use x87 instructions.

## Description

This option specifies whether the compiler can use x87 instructions.

If you specify option -mno-80387, it prevents the compiler from using x87 instructions. If the compiler is forced to generate x87 instructions, it issues an error message.

## IDE Equivalent

None

## Alternate Options

-m[no-]x87

Parent topic: Code Generation Options