tstX86-FpuSaveRestore.cpp revision 4101de7974ac0eaba9428c06e656e0ecde8b301c
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync * tstX86-FpuSaveRestore - Experimenting with saving and restoring FPU.
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync * Copyright (C) 2013 Oracle Corporation
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync * available from http://www.virtualbox.org. This file is free software;
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync * you can redistribute it and/or modify it under the terms of the GNU
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync * General Public License (GPL) as published by the Free Software
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync/*******************************************************************************
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync* Header Files *
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync*******************************************************************************/
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync int rc = RTTestInitAndCreate("tstX86-FpuSaveRestore", &hTest);
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, "Initial state:\n");
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync /* Trigger an exception to make sure we've got something to look at. */
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, " FxState IP=%#06x%04x%08x\n", FxState.Rsrvd1, FxState.CS, FxState.FPUIP);
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, " FxState CS:IP=%#06x:%#010x\n", FxState.CS, FxState.FPUIP);
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, " FpuEnv CS:IP=%#06x:%#010x\n", FpuEnv.FPUCS, FpuEnv.FPUIP);
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync /* Modify the state a little so we can tell the difference. */
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync /* Just do FXRSTOR. */
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, "Just FXRSTOR:\n");
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, " FxState IP=%#06x%04x%08x\n", FxStateJustRestore.Rsrvd1, FxStateJustRestore.CS, FxStateJustRestore.FPUIP);
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, " FxState CS:IP=%#06x:%#010x\n", FxStateJustRestore.CS, FxStateJustRestore.FPUIP);
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, " FpuEnv CS:IP=%#06x:%#010x\n", FpuEnvJustRestore.FPUCS, FpuEnvJustRestore.FPUIP);
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync /* FXRSTORE + FLDENV */
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, "FXRSTOR first, then FLDENV:\n");
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, " FxState IP=%#06x%04x%08x\n", FxStateRestoreLoad.Rsrvd1, FxStateRestoreLoad.CS, FxStateRestoreLoad.FPUIP);
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, " FxState CS:IP=%#06x:%#010x\n", FxStateRestoreLoad.CS, FxStateRestoreLoad.FPUIP);
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, " FpuEnv CS:IP=%#06x:%#010x\n", FpuEnvRestoreLoad.FPUCS, FpuEnvRestoreLoad.FPUIP);
ed882ec1ed01b0a5469d2acd28d0bf52e38c2103vboxsync /* Reverse the order (FLDENV + FXRSTORE). */
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, "FLDENV first, then FXRSTOR:\n");
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, " FxState IP=%#06x%04x%08x\n", FxStateLoadRestore.Rsrvd1, FxStateLoadRestore.CS, FxStateLoadRestore.FPUIP);
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, " FxState CS:IP=%#06x:%#010x\n", FxStateLoadRestore.CS, FxStateLoadRestore.FPUIP);
4101de7974ac0eaba9428c06e656e0ecde8b301cvboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, " FpuEnv CS:IP=%#06x:%#010x\n", FpuEnvLoadRestore.FPUCS, FpuEnvLoadRestore.FPUIP);