94 lines
1.2 KiB
C
94 lines
1.2 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_COND(lea);
|
|
IMPL_COND(mov);
|
|
IMPL_COND(movb);
|
|
IMPL_COND(movw);
|
|
IMPL_COND(movl);
|
|
IMPL_COND(movt);
|
|
IMPL_COND(xchg);
|
|
IMPL_COND(cmpxchg);
|
|
|
|
/*
|
|
IMPL_COND(xchgb);
|
|
IMPL_COND(xchgw);
|
|
IMPL_COND(xchgl);
|
|
IMPL_COND(xchgt);
|
|
*/
|
|
|
|
//
|
|
// Movement instructions
|
|
//
|
|
|
|
IMPL_START_2(mov)
|
|
{
|
|
v1 = v2;
|
|
}
|
|
IMPL_OUT;
|
|
|
|
IMPL_START_2(movb)
|
|
{
|
|
v1 = (v1 & 0xFFFFFFFFFFFFFF00)
|
|
| (v2 & 0x00000000000000FF);
|
|
}
|
|
IMPL_OUT;
|
|
|
|
IMPL_START_2(movw)
|
|
{
|
|
v1 = (v1 & 0xFFFFFFFFFFFF0000)
|
|
| (v2 & 0x000000000000FFFF);
|
|
}
|
|
IMPL_OUT;
|
|
|
|
IMPL_START_2(movl)
|
|
{
|
|
v1 = (v1 & 0xFFFFFFFF00000000)
|
|
| (v2 & 0x00000000FFFFFFFF);
|
|
}
|
|
IMPL_OUT;
|
|
|
|
IMPL_START_2(movt)
|
|
{
|
|
v1 = (v1 & 0xFFFF000000000000)
|
|
| (v2 & 0x0000FFFFFFFFFFFF);
|
|
}
|
|
IMPL_OUT;
|
|
|
|
IMPL_START_2(xchg)
|
|
{
|
|
ulong t = v1;
|
|
v1 = v2;
|
|
v2 = t;
|
|
}
|
|
IMPL_OUT_2;
|
|
|
|
IMPL_START_1(lea)
|
|
{
|
|
v1 = (p2->type == A_REG ? R(p2->val) : p2->val) + p2->off;
|
|
}
|
|
IMPL_OUT;
|
|
|
|
IMPL_START_1(gcs)
|
|
{
|
|
v1 = cr1;
|
|
}
|
|
IMPL_OUT;
|
|
|
|
IMPL_START_2(cmpxchg)
|
|
{
|
|
if (rax == v1) {
|
|
flg |= ZF;
|
|
v1 = v2;
|
|
}
|
|
|
|
else {
|
|
flg &= ~ZF;
|
|
rax = v1;
|
|
}
|
|
}
|
|
IMPL_OUT;
|
|
|