mirror of
https://gitlab.os-k.eu/os-k-team/kvisc.git
synced 2023-08-25 14:05:46 +02:00
34 lines
628 B
C
34 lines
628 B
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(trap)
|
|
{
|
|
if (v1 > 255)
|
|
_except(ctx, E_ILL, "TRAP number greater than 255");
|
|
|
|
_except(ctx, v1 + 256, "TRAP instruction");
|
|
}
|
|
IMPL_END;
|
|
|
|
IMPL_START_0(into)
|
|
{
|
|
if (R(RFX) & OF)
|
|
_except(ctx, E_OVF, "INTO instruction with FLG.OF=1");
|
|
}
|
|
IMPL_END;
|
|
|
|
// XXX more checks
|
|
|
|
IMPL_START_0(iret)
|
|
{
|
|
trace("\nReturning from exception #%ld\n\n", R(R11));
|
|
|
|
R(RIP) = R(R13);
|
|
rfs_current_idx = R(R12);
|
|
ctx->rf = rfs[R(R12)];
|
|
}
|
|
IMPL_END;
|
|
|