Commit f7f4a5fb authored by H. Peter Anvin's avatar H. Peter Anvin Committed by Linus Torvalds
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Header file to produce 16-bit code with gcc

gcc for i386 can be used with the assembly prefix ".code16gcc" to generate
16-bit (real-mode) code.  This header file provides the assembly prefix.

Signed-off-by: default avatarH. Peter Anvin <>
Signed-off-by: default avatarLinus Torvalds <>
parent 8afd2af8
* code16gcc.h
* This file is -include'd when compiling 16-bit C code.
* Note: this asm() needs to be emitted before gcc omits any code.
* Depending on gcc version, this requires -fno-unit-at-a-time or
* -fno-toplevel-reorder.
* Hopefully gcc will eventually have a real -m16 option so we can
* drop this hack long term.
#ifndef __ASSEMBLY__
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