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Diffstat (limited to 'src/arch/alpha/utility.cc')
-rw-r--r-- | src/arch/alpha/utility.cc | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/arch/alpha/utility.cc b/src/arch/alpha/utility.cc new file mode 100644 index 000000000..f1864203b --- /dev/null +++ b/src/arch/alpha/utility.cc @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2003-2005 The Regents of The University of Michigan + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Nathan Binkert + * Ali Saidi + */ + +#include "arch/alpha/utility.hh" + +#if FULL_SYSTEM +#include "arch/alpha/vtophys.hh" +#include "mem/vport.hh" +#endif + +namespace AlphaISA +{ + +uint64_t getArgument(ThreadContext *tc, int number, bool fp) +{ +#if FULL_SYSTEM + if (number < NumArgumentRegs) { + if (fp) + return tc->readFloatRegBits(ArgumentReg[number]); + else + return tc->readIntReg(ArgumentReg[number]); + } else { + Addr sp = tc->readIntReg(StackPointerReg); + VirtualPort *vp = tc->getVirtPort(tc); + uint64_t arg = vp->read<uint64_t>(sp + + (number-NumArgumentRegs) * sizeof(uint64_t)); + tc->delVirtPort(vp); + return arg; + } +#else + panic("getArgument() is Full system only\n"); + M5_DUMMY_RETURN +#endif +} + +} // namespace AlphaISA + |