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mirror of https://gitlab.os-k.eu/os-k-team/kvisc.git synced 2023-08-25 14:05:46 +02:00
kvisc/vm/in/mov.c
2019-07-09 19:51:03 +02:00

122 lines
1.9 KiB
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>
IMPL_START_1(lea)
{
v1 = p2->addr;
}
IMPL_OUT;
//----------------------------------------------------------------------------//
IMPL_START_2_ONLY(mov)
{
v1 = v2;
}
IMPL_OUT;
//----------------------------------------------------------------------------//
IMPL_START_2_ONLY(movsxb)
{
v1 = (ulong)(long)(char)(v2 & 0xFF);
}
IMPL_OUT;
IMPL_START_2_ONLY(movsxw)
{
v1 = (ulong)(long)(short)(v2 & 0xFFFF);
}
IMPL_OUT;
IMPL_START_2_ONLY(movsxl)
{
v1 = (ulong)(long)(int)(v2 & 0xFFFFFFFF);
}
IMPL_OUT;
//----------------------------------------------------------------------------//
IMPL_START_1(movzx)
{
DECVZX(v2, p2);
v1 = v2;
}
IMPL_OUT;
//----------------------------------------------------------------------------//
IMPL_START_2(xchg)
{
ulong t = v1;
v1 = v2;
v2 = t;
}
IMPL_OUT_2;
IMPL_START_2(cmpxchg)
{
if (rax == v1) {
flg |= ZF;
v1 = v2;
}
else {
flg &= ~ZF;
rax = v1;
}
}
IMPL_OUT;
//----------------------------------------------------------------------------//
IMPL_START_3(rotl)
{
ulong tmp = v1;
v1 = v2;
v2 = v3;
v3 = tmp;
}
IMPL_OUT_3;
IMPL_START_3(rotr)
{
ulong tmp = v3;
v3 = v2;
v2 = v1;
v1 = tmp;
}
IMPL_OUT_3;
//----------------------------------------------------------------------------//
IMPL_START_2_ONLY(ldarg)
{
if (v2 < 16)
v1 = R(AX0 + v2);
else
_except(ctx, E_ILL, "ldarg: value out of range: %lu", v2);
}
IMPL_OUT;
//----------------------------------------------------------------------------//
IMPL_START_1(gco)
{
v1 = cr1;
}
IMPL_OUT;
IMPL_START_1(gcd)
{
v1 = cr2;
}
IMPL_OUT;
//----------------------------------------------------------------------------//