// 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>

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

IMPL_START_3(krotl)
{
    ulong tmp = v1;
    v1 = v2;
    v2 = v3;
    v3 = tmp;
}
IMPL_OUT_3;

IMPL_START_3(krotr)
{
    ulong tmp = v3;
    v3 = v2;
    v2 = v1;
    v1 = tmp;
}
IMPL_OUT_3;

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

#define K_IMPL_ALU(name, expr)                                              \
IMPL_START_3(k##name)                                                       \
{                                                                           \
    v1 = (expr);                                                            \
}                                                                           \
IMPL_OUT

K_IMPL_ALU(or, v2 | v3);
K_IMPL_ALU(and, v2 & v3);
K_IMPL_ALU(xor, v2 ^ v3);

K_IMPL_ALU(nor, ~(v2 | v3));
K_IMPL_ALU(orn, v2 | ~v3);
K_IMPL_ALU(nand, ~(v2 & v3));
K_IMPL_ALU(andn, v2 & ~v3);
K_IMPL_ALU(xnor, ~(v2 ^ v3));
K_IMPL_ALU(xorn, v2 ^ ~v3);

K_IMPL_ALU(shl, v2 << v3);
K_IMPL_ALU(shr, v2 >> v3);

K_IMPL_ALU(add, v2 + v3);
K_IMPL_ALU(adc, v2 + v3 + !!(flg&CF));
K_IMPL_ALU(ado, v2 + v3 + !!(flg&OF));
K_IMPL_ALU(sub, v2 - v3);
K_IMPL_ALU(sbb, v2 - v3 - !!(flg&CF));
K_IMPL_ALU(sbo, v2 - v3 - !!(flg&OF));
K_IMPL_ALU(mul, v2 * v3);
K_IMPL_ALU(div, v2 / v3);
K_IMPL_ALU(rem, v2 % v3);

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

IMPL_START_3(ksal)
{
    long w2 = v2;
    long w3 = v3;

    w2 <<= w3;
    v1 = (ulong)w2;
}
IMPL_OUT;

IMPL_START_3(ksar)
{
    long w2 = v2;
    long w3 = v3;

    w2 >>= w3;
    v1 = (ulong)w2;
}
IMPL_OUT;

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