52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
#include <stdint.h>
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static inline uint8_t inb(uint16_t port) {
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uint8_t ret;
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__asm__ volatile ("inb %1, %0" : "=a"(ret) : "Nd"(port));
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return ret;
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}
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static inline void outb(uint16_t port, uint8_t val) {
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__asm__ volatile ("outb %0, %1" : : "a"(val), "Nd"(port));
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}
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static inline uint16_t inw(uint16_t port) {
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uint16_t ret;
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__asm__ volatile ("inw %1, %0" : "=a"(ret) : "Nd"(port));
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return ret;
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}
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static inline void outw(uint16_t port, uint16_t val) {
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__asm__ volatile ("outw %0, %1" : : "a"(val), "Nd"(port));
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}
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static inline uint32_t inl(uint16_t port) {
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uint32_t ret;
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__asm__ volatile ("inl %1, %0" : "=a"(ret) : "Nd"(port));
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return ret;
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}
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static inline void outl(uint16_t port, uint32_t val) {
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__asm__ volatile ("outl %0, %1" : : "a"(val), "Nd"(port));
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}
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static inline void io_wait(void) {
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outb(0x80, 0);
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}
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static inline void int_enable(void) {
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__asm__ volatile ("sti");
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}
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static inline void int_disable(void) {
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__asm__ volatile ("cli");
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}
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static inline void int_wait(void) {
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__asm__ volatile ("sti; hlt");
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}
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static inline void halt(void) {
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__asm__ volatile ("cli; hlt");
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}
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