Subversion Repositories HelenOS-historic

Rev

Rev 224 | Rev 252 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 224 Rev 226
Line 34... Line 34...
34 
 
 34 
 
35 
 
 35 
 
36 
void asm_delay_loop(__u32 t);
 36 
void asm_delay_loop(__u32 t);
37 
void asm_fake_loop(__u32 t);
 37 
void asm_fake_loop(__u32 t);
38 
 
 38 
 
39 
/* TODO: implement the real stuff */
 - 
 
40 
static inline __address get_stack_base(void)
 39 
static inline __address get_stack_base(void)
41 
{
 40 
{
- 
 
 41 
    __address v;
- 
 
 42 
   
- 
 
 43 
    __asm__ volatile ("andq %%rsp, %0\n" : "=r" (v) : "0" (~((__u64)STACK_SIZE-1)));
- 
 
 44 
   
42 
    return NULL;
 45 
    return v;
43 
}
 46 
}
44 
 
 47 
 
45 
static inline void cpu_sleep(void) { __asm__("hlt"); };
 48 
static inline void cpu_sleep(void) { __asm__("hlt"); };
46 
static inline void cpu_halt(void) { __asm__("hlt"); };
 49 
static inline void cpu_halt(void) { __asm__("hlt"); };
47 
 
 50 
 
Line 49... Line 52...
49 
static inline __u8 inb(__u16 port)
 52 
static inline __u8 inb(__u16 port)
50 
{
 53 
{
51 
    __u8 out;
 54 
    __u8 out;
52 
 
 55 
 
53 
    asm (
 56 
    asm (
54 
        "mov %0, %%dx;"
 57 
        "mov %1, %%dx;"
55 
        "inb %%dx,%%al;"
 58 
        "inb %%dx,%%al;"
56 
        "mov %%al, %1;"
 59 
        "mov %%al, %0;"
57 
        :"=m"(out)
 60 
        :"=m"(out)
58 
        :"m"(port)
 61 
        :"m"(port)
59 
        :"%dx","%al"
 62 
        :"%dx","%al"
60 
        );
 63 
        );
61 
    return out;
 64 
    return out;