Subversion Repositories HelenOS-historic

Rev

Rev 597 | Rev 806 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 597 Rev 625
Line 52... Line 52...
52 
 
 52 
 
53 
static inline void cpu_sleep(void) { __asm__ volatile ("hlt\n"); };
 53 
static inline void cpu_sleep(void) { __asm__ volatile ("hlt\n"); };
54 
static inline void cpu_halt(void) { __asm__ volatile ("hlt\n"); };
 54 
static inline void cpu_halt(void) { __asm__ volatile ("hlt\n"); };
55 
 
 55 
 
56 
 
 56 
 
57 
static inline __u8 inb(__u16 port)
 57 
/** Byte from port
58 
{
 58 
 *
59 
    __u8 out;
 59 
 * Get byte from port
60 
 
 60 
 *
61 
    __asm__ volatile (
 61 
 * @param port Port to read from
62 
        "mov %1, %%dx\n"
 - 
 
63 
        "inb %%dx,%%al\n"
 - 
 
64 
        "mov %%al, %0\n"
 - 
 
65 
        :"=m"(out)
 - 
 
66 
        :"m"(port)
 - 
 
67 
        :"%rdx","%rax"
 - 
 
68 
        );
 - 
 
69 
    return out;
 62 
 * @return Value read
70 
}
 63 
 */
- 
 
 64 
static inline __u8 inb(__u16 port) { __u8 val; __asm__ volatile ("inb %w1, %b0 \n" : "=a" (val) : "d" (port) ); return val; }
71 
 
 65 
 
72 
static inline __u8 outb(__u16 port,__u8 b)
 66 
/** Byte to port
73 
{
 67 
 *
74 
    __asm__ volatile (
 - 
 
75 
        "mov %0,%%dx\n"
 - 
 
76 
        "mov %1,%%al\n"
 - 
 
77 
        "outb %%al,%%dx\n"
 68 
 * Output byte to port
78 
        :
 69 
 *
79 
        :"m"( port), "m" (b)
 70 
 * @param port Port to write to
80 
        :"%rdx","%rax"
 71 
 * @param val Value to write
81 
        );
 72 
 */
82 
}
 - 
 
- 
 
 73 
static inline void outb(__u16 port, __u8 val) { __asm__ volatile ("outb %b0, %w1\n" : : "a" (val), "d" (port) ); }
83 
 
 74 
 
84 
/** Enable interrupts.
 75 
/** Enable interrupts.
85 
 *
 76 
 *
86 
 * Enable interrupts and return previous
 77 
 * Enable interrupts and return previous
87 
 * value of EFLAGS.
 78 
 * value of EFLAGS.