25 lines
501 B
C
25 lines
501 B
C
|
#define outb(value,port) \
|
||
|
|
__asm__ ("outb %%al,%%dx"::"a" (value),"d" (port))
|
||
|
|
|
||
|
|
|
||
|
|
#define inb(port) ({ \
|
||
|
|
unsigned char _v; \
|
||
|
|
__asm__ volatile ("inb %%dx,%%al":"=a" (_v):"d" (port)); \
|
||
|
|
_v; \
|
||
|
|
})
|
||
|
|
|
||
|
|
#define outb_p(value,port) \
|
||
|
|
__asm__ ("outb %%al,%%dx\n" \
|
||
|
|
"\tjmp 1f\n" \
|
||
|
|
"1:\tjmp 1f\n" \
|
||
|
|
"1:"::"a" (value),"d" (port))
|
||
|
|
|
||
|
|
#define inb_p(port) ({ \
|
||
|
|
unsigned char _v; \
|
||
|
|
__asm__ volatile ("inb %%dx,%%al\n" \
|
||
|
|
"\tjmp 1f\n" \
|
||
|
|
"1:\tjmp 1f\n" \
|
||
|
|
"1:":"=a" (_v):"d" (port)); \
|
||
|
|
_v; \
|
||
|
|
})
|