diff options
Diffstat (limited to 'memdump/io.h')
-rw-r--r-- | memdump/io.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/memdump/io.h b/memdump/io.h new file mode 100644 index 00000000..a592402f --- /dev/null +++ b/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 |