/*
- * Copyright (c) 2003 The Regents of The University of Michigan
+ * Copyright (c) 2003-2004 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#ifndef __ISA_TRAITS_HH__
-#define __ISA_TRAITS_HH__
+#ifndef __ARCH_ALPHA_ISA_TRAITS_HH__
+#define __ARCH_ALPHA_ISA_TRAITS_HH__
-#include "sim/host.hh"
-#include "targetarch/faults.hh"
+#include "arch/alpha/faults.hh"
#include "base/misc.hh"
+#include "sim/host.hh"
class FastCPU;
class FullCPU;
template <class ISA> class StaticInst;
template <class ISA> class StaticInstPtr;
+namespace EV5 {
+int DTB_ASN_ASN(uint64_t reg);
+int ITB_ASN_ASN(uint64_t reg);
+}
+
class AlphaISA
{
public:
Addr lock_addr; // lock address for LL/SC
} MiscRegFile;
+static const Addr PageShift = 13;
+static const Addr PageBytes = ULL(1) << PageShift;
+static const Addr PageMask = ~(PageBytes - 1);
+static const Addr PageOffset = PageBytes - 1;
+
#ifdef FULL_SYSTEM
typedef uint64_t InternalProcReg;
-#include "targetarch/isa_fullsys_traits.hh"
+#include "arch/alpha/isa_fullsys_traits.hh"
#else
enum {
#ifdef FULL_SYSTEM
IntReg palregs[NumIntRegs]; // PAL shadow registers
InternalProcReg ipr[NumInternalProcRegs]; // internal processor regs
- int intrlock; // interrupt register lock flag
int intrflag; // interrupt flag
bool pal_shadow; // using pal_shadow registers
+ inline int instAsid() { return EV5::ITB_ASN_ASN(ipr[IPR_ITB_ASN]); }
+ inline int dataAsid() { return EV5::DTB_ASN_ASN(ipr[IPR_DTB_ASN]); }
#endif // FULL_SYSTEM
void serialize(std::ostream &os);
static StaticInstPtr<AlphaISA> decodeInst(MachInst);
+ // return a no-op instruction... used for instruction fetch faults
+ static const MachInst NoopMachInst;
+
enum annotes {
ANNOTE_NONE = 0,
// An impossible number for instruction annotations
const int BranchPredAddrShiftAmt = TheISA::BranchPredAddrShiftAmt;
const int MaxAddr = (Addr)-1;
+#ifndef FULL_SYSTEM
+class SyscallReturn {
+ public:
+ template <class T>
+ SyscallReturn(T v, bool s)
+ {
+ retval = (uint64_t)v;
+ success = s;
+ }
+
+ template <class T>
+ SyscallReturn(T v)
+ {
+ success = (v >= 0);
+ retval = (uint64_t)v;
+ }
+
+ ~SyscallReturn() {}
+
+ SyscallReturn& operator=(const SyscallReturn& s) {
+ retval = s.retval;
+ success = s.success;
+ return *this;
+ }
+
+ uint64_t successful() { return success; }
+ bool value() { return retval; }
+
+
+ private:
+ uint64_t retval;
+ bool success;
+};
+
+#endif
+
+
#ifdef FULL_SYSTEM
typedef TheISA::InternalProcReg InternalProcReg;
const int NumInternalProcRegs = TheISA::NumInternalProcRegs;
const int NumInterruptLevels = TheISA::NumInterruptLevels;
-// more stuff that should be imported here, but I'm too tired to do it
-// right now...
-#include "targetarch/ev5.hh"
+#include "arch/alpha/ev5.hh"
#endif
-#endif // __ALPHA_ISA_H__
+#endif // __ARCH_ALPHA_ISA_TRAITS_HH__