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author | Sebastian Schmelzer | 2010-10-25 16:53:54 +0200 |
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committer | Sebastian Schmelzer | 2010-10-25 16:53:54 +0200 |
commit | 3050a9253437f4a4b5ad4bf3b3efdc3c660a5137 (patch) | |
tree | 91ac22153e416aac7ca20916b314b5e2ffa871b1 /contrib/syslinux-4.02/memdump/io.h | |
download | preboot-3050a9253437f4a4b5ad4bf3b3efdc3c660a5137.tar.gz preboot-3050a9253437f4a4b5ad4bf3b3efdc3c660a5137.tar.xz preboot-3050a9253437f4a4b5ad4bf3b3efdc3c660a5137.zip |
Diffstat (limited to 'contrib/syslinux-4.02/memdump/io.h')
-rw-r--r-- | contrib/syslinux-4.02/memdump/io.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/memdump/io.h b/contrib/syslinux-4.02/memdump/io.h new file mode 100644 index 0000000..e5e3745 --- /dev/null +++ b/contrib/syslinux-4.02/memdump/io.h @@ -0,0 +1,40 @@ +#ifndef IO_H +#define IO_H + +static inline void outb(unsigned char v, unsigned short p) +{ + asm volatile ("outb %1,%0"::"d" (p), "a"(v)); +} + +static inline unsigned char inb(unsigned short p) +{ + unsigned char v; + asm volatile ("inb %1,%0":"=a" (v):"d"(p)); + return v; +} + +static inline void outw(unsigned short v, unsigned short p) +{ + asm volatile ("outw %1,%0"::"d" (p), "a"(v)); +} + +static inline unsigned short inw(unsigned short p) +{ + unsigned short v; + asm volatile ("inw %1,%0":"=a" (v):"d"(p)); + return v; +} + +static inline void outl(unsigned int v, unsigned short p) +{ + asm volatile ("outl %1,%0"::"d" (p), "a"(v)); +} + +static inline unsigned int inl(unsigned short p) +{ + unsigned int v; + asm volatile ("inl %1,%0":"=a" (v):"d"(p)); + return v; +} + +#endif |