Return to io.h CVS log

Up to [Early Linux] / linux / include / asm

Annotation of linux/include/asm/io.h, revision 1.1

1.1     ! root        1: #define outb(value,port) \
        !             2: __asm__ ("outb %%al,%%dx"::"a" (value),"d" (port))
        !             3: 
        !             4: 
        !             5: #define inb(port) ({ \
        !             6: unsigned char _v; \
        !             7: __asm__ volatile ("inb %%dx,%%al":"=a" (_v):"d" (port)); \
        !             8: _v; \
        !             9: })
        !            10: 
        !            11: #define outb_p(value,port) \
        !            12: __asm__ ("outb %%al,%%dx\n" \
        !            13:                "\tjmp 1f\n" \
        !            14:                "1:\tjmp 1f\n" \
        !            15:                "1:"::"a" (value),"d" (port))
        !            16: 
        !            17: #define inb_p(port) ({ \
        !            18: unsigned char _v; \
        !            19: __asm__ volatile ("inb %%dx,%%al\n" \
        !            20:        "\tjmp 1f\n" \
        !            21:        "1:\tjmp 1f\n" \
        !            22:        "1:":"=a" (_v):"d" (port)); \
        !            23: _v; \
        !            24: })

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.