kvisc/vm/in/inout.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 <pc/console.h>

IMPL_START_1(prn)
{
    // Magic value? :)
    if (__builtin_expect(v1 == 0xC15000AF, 0))
        console_clear(ctx);

    else
    {
        if (p1->mlen > 1) {
            trace("prn warning: large access size\n");
        }
        console_putc(ctx, (char)v1);
    }
}
IMPL_END

IMPL_START_0(prns)
{
    uchar ch = readmemzx(ctx, R(p1->reg), 1);

    COMPARE(ch, 0);

    if ((rfx & ZF) == 0)
    {
        console_putc(ctx, ch);

        if (rfx & DF)
            R(p1->reg)--;
        else
            R(p1->reg)++;
    }
}
IMPL_END

IMPL_START_1(scan)
{
    v1 = console_scankeybuf(ctx);
}
IMPL_OUT;