src/common/io.cpp

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/***********************************************************
*PANALIX 0.06, (c) Adrian Panasiuk 2002-4                  *
*adek336[at]o2.pl, panalix.prv.pl                          *
*under GPLv3 license                                       *
*                                                          *
*panalix - small osdev project                             *
************************************************************
*       io.cpp, version 1.0                                *
************************************************************
*                                                          *
*port input/output                                         *
*                                                          *
*25'04'04- first revision (1.0)                            *
*                                                          *
***********************************************************/

#include "src/common/shared.hpp"
#include "src/common/io.hpp"

namespace IOPorts {


/*outs a byte*/
void outb(uint16 port, uint8 ch) {
        __asm__ __volatile__("outb %%al, %%dx" : : "d" (port), "a" (ch));
 }

/*ins a byte*/
uint8 inb(uint16 port)
 {
uint8 ret;
        __asm__ __volatile__ ("inb %%dx, %%al" : "=a" (ret) : "d" (port));
        return ret;
 }

uint16 inw(uint16 port) {
        uint16 ret; __asm__ __volatile__ ("inw %%dx, %%ax" :"=a" (ret) : "d"(port));
        return ret; }

void outw(uint16 port, uint16 ch) {
        __asm__ __volatile__ ("outw %%ax, %%dx" : : "d"(port),"a"(ch));
}

uint32 inl(uint16 port) {
        uint32 ret; __asm__ __volatile__ ("inl %%dx, %%eax" :"=a" (ret) : "d"(port));
        return ret; }

void outl(uint16 port, uint32 ch) {
        __asm__ __volatile__ ("outl %%eax, %%dx" : : "d"(port),"a"(ch));
}


 };     /*namespace IOPorts*/


/***********************************************************
*                                                          *
*panalix 0.06 (c) Adrian Panasiuk 2002-4                   *
*adek336[at]o2.pl, panalix.prv.pl                          *
*                                                          *
***********************************************************/

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