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[DDK]: Add MEMORY_BARRIER missing from ioaccess.h.

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svn path=/trunk/; revision=46067
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Sir Richard 2010-03-10 18:28:03 +00:00
parent 1511347fdc
commit 30cee65672
1 changed files with 2 additions and 0 deletions
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2
reactos/include/ddk/ioaccess.h
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@ -41,6 +41,8 @@ extern "C" {
#define WRITE_PORT_USHORT(p, v) __outword (H2I(p), (v))
#define WRITE_PORT_ULONG(p, v) __outdword (H2I(p), (v))
#define MEMORY_BARRIER()
#elif defined(_PPC_) || defined(_MIPS_) || defined(_ARM_)
#define READ_REGISTER_UCHAR(r) (*(volatile UCHAR * const)(r))