diff options
Diffstat (limited to 'arch/i386/kernel/pic.h')
-rw-r--r-- | arch/i386/kernel/pic.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/i386/kernel/pic.h b/arch/i386/kernel/pic.h new file mode 100644 index 0000000..da4a2ee --- /dev/null +++ b/arch/i386/kernel/pic.h @@ -0,0 +1,16 @@ +#ifndef PIC_H +#define PIC_H + +#include <stdint.h> + +static inline void outb(uint16_t port, uint8_t value) { + asm volatile("outb %0, %1" : : "a"(value), "Nd"(port)); +} + +static inline uint8_t inb(uint16_t port) { + uint8_t ret; + asm volatile("inb %1, %0" : "=a"(ret) : "Nd"(port)); + return ret; +} + +#endif |