68 lines
1.4 KiB
C
68 lines
1.4 KiB
C
#include "types.h"
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/******************************************************************************/
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#define sti() asm("sti"::)
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#define cli() asm("cli"::)
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#define nop() asm("nop"::)
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#define iret() asm("addl $0x0C, %esp; \
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iret;")
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#define irqendmaster() asm("movb $0x20,%al; \
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outb %al,$0x20;")
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#define irqendslave() asm("movb $0x20,%al; \
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outb %al,$0xA0;")
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#define lidt(dtr) asm ("lidtl %0"::"m" (*dtr))
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/******************************************************************************/
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#define outb(port,value) \
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asm volatile ("outb %%al,%%dx"::"d" (port), "a" (value));
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#define outw(port,value) \
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asm volatile ("outw %%ax,%%dx"::"d" (port), "a" (value));
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#define outd(port,value) \
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asm volatile ("outl %%eax,%%dx"::"d" (port), "a" (value));
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/******************************************************************************/
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#define inb(port) ({ \
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u8 _v; \
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asm volatile ("inb %%dx,%%al" : "=a" (_v) : "d" (port)); \
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_v; \
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})
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#define inw(port) ({ \
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u16 _v; \
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asm volatile ("inw %%dx,%%ax" : "=a" (_v) : "d"(port)); \
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_v; \
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}
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#define ind(port) ({ \
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u32 _v; \
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asm volatile ("inl %%dx,%%eax" : "=a" (_v) : "d"(port)); \
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_v; \
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}
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/******************************************************************************/
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/* pas terminé */
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#define rolb(input,rotate) ({ \
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u32 _v; \
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asm volatile ("roll %1,%0" : "=g" (_v) : "cI" (rotate), "0" (input)); \
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_v; \
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}
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