| 54,33 → 54,24 |
|---|
| static inline void cpu_halt(void) { __asm__ volatile ("hlt\n"); }; |
| |
| |
| static inline __u8 inb(__u16 port) |
| { |
| __u8 out; |
| /** Byte from port |
| * |
| * Get byte from port |
| * |
| * @param port Port to read from |
| * @return Value read |
| */ |
| static inline __u8 inb(__u16 port) { __u8 val; __asm__ volatile ("inb %w1, %b0 \n" : "=a" (val) : "d" (port) ); return val; } |
| |
| __asm__ volatile ( |
| "mov %1, %%dx\n" |
| "inb %%dx,%%al\n" |
| "mov %%al, %0\n" |
| :"=m"(out) |
| :"m"(port) |
| :"%rdx","%rax" |
| ); |
| return out; |
| } |
| /** Byte to port |
| * |
| * Output byte to port |
| * |
| * @param port Port to write to |
| * @param val Value to write |
| */ |
| static inline void outb(__u16 port, __u8 val) { __asm__ volatile ("outb %b0, %w1\n" : : "a" (val), "d" (port) ); } |
| |
| static inline __u8 outb(__u16 port,__u8 b) |
| { |
| __asm__ volatile ( |
| "mov %0,%%dx\n" |
| "mov %1,%%al\n" |
| "outb %%al,%%dx\n" |
| : |
| :"m"( port), "m" (b) |
| :"%rdx","%rax" |
| ); |
| } |
| |
| /** Enable interrupts. |
| * |
| * Enable interrupts and return previous |