kvisc/vm/in/misc.c

// The OS/K Team licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

#include <in/instrs.h>
#include <sys/time.h>
#include <unistd.h>
#include <time.h>

//----------------------------------------------------------------------------//

IMPL_START_0(nop)
{
}
IMPL_END;

//----------------------------------------------------------------------------//

IMPL_START_0(pause)
{
    usleep(5000);
}
IMPL_END;

IMPL_START_0(xpause)
{
    CHK_SUPERV();
    usleep(25000);
}
IMPL_END;

//----------------------------------------------------------------------------//

IMPL_START_0(cpuid)
{
    rax = rdx = 0;
}
IMPL_END;

//----------------------------------------------------------------------------//

IMPL_START_1(time)
{
    v1 = time(NULL);
}
IMPL_OUT;

IMPL_START_1(utime)
{
    struct timeval time;
    gettimeofday(&time, NULL);
    v1 = (time.tv_sec * 1000) + (time.tv_usec / 1000);
}
IMPL_OUT;

//----------------------------------------------------------------------------//

IMPL_START_0(clr)
{
    rax = rbx = rcx = rdx = rdi = rsi = 0;
}
IMPL_END;

IMPL_START_0(cla)
{
    for (int i = AX0; i < AX8; i++)
        R(i) = 0;
}
IMPL_END;

//----------------------------------------------------------------------------//

IMPL_START_2(bswap)
{
    v1 = ((v2 & 0xFF00000000000000) >> 56)
       | ((v2 & 0x00FF000000000000) >> 40)
       | ((v2 & 0x0000FF0000000000) >> 24)
       | ((v2 & 0x000000FF00000000) >> 8)
       | ((v2 & 0x00000000FF000000) << 8)
       | ((v2 & 0x0000000000FF0000) << 24)
       | ((v2 & 0x000000000000FF00) << 40)
       | ((v2 & 0x00000000000000FF) << 56);
}
IMPL_OUT;

IMPL_START_2(wswap)
{
    v1 = ((v2 & 0xFFFF000000000000) >> 48)
       | ((v2 & 0x0000FFFF00000000) >> 16)
       | ((v2 & 0x00000000FFFF0000) << 16)
       | ((v2 & 0x000000000000FFFF) << 48);
}
IMPL_OUT;

IMPL_START_2(dswap)
{
    v1 = ((v2 & 0xFFFFFFFF00000000) >> 32)
       | ((v2 & 0x00000000FFFFFFFF) << 32);
}
IMPL_OUT;

//----------------------------------------------------------------------------//