summaryrefslogtreecommitdiff
path: root/src/arch/x86/isa_traits.hh
diff options
context:
space:
mode:
Diffstat (limited to 'src/arch/x86/isa_traits.hh')
-rw-r--r--src/arch/x86/isa_traits.hh129
1 files changed, 129 insertions, 0 deletions
diff --git a/src/arch/x86/isa_traits.hh b/src/arch/x86/isa_traits.hh
new file mode 100644
index 000000000..5a625f741
--- /dev/null
+++ b/src/arch/x86/isa_traits.hh
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2007 The Hewlett-Packard Development Company
+ * All rights reserved.
+ *
+ * Redistribution and use of this software in source and binary forms,
+ * with or without modification, are permitted provided that the
+ * following conditions are met:
+ *
+ * The software must be used only for Non-Commercial Use which means any
+ * use which is NOT directed to receiving any direct monetary
+ * compensation for, or commercial advantage from such use. Illustrative
+ * examples of non-commercial use are academic research, personal study,
+ * teaching, education and corporate research & development.
+ * Illustrative examples of commercial use are distributing products for
+ * commercial advantage and providing services using the software for
+ * commercial advantage.
+ *
+ * If you wish to use this software or functionality therein that may be
+ * covered by patents for commercial use, please contact:
+ * Director of Intellectual Property Licensing
+ * Office of Strategy and Technology
+ * Hewlett-Packard Company
+ * 1501 Page Mill Road
+ * Palo Alto, California 94304
+ *
+ * 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 HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission. No right of
+ * sublicense is granted herewith. Derivatives of the software and
+ * output created using the software may be prepared, but only for
+ * Non-Commercial Uses. Derivatives of the software may be shared with
+ * others provided: (i) the others agree to abide by the list of
+ * conditions herein which includes the Non-Commercial Use restrictions;
+ * and (ii) such Derivatives of the software include the above copyright
+ * notice to acknowledge the contribution from this software where
+ * applicable, this list of conditions and the disclaimer below.
+ *
+ * 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: Gabe Black
+ */
+
+#ifndef __ARCH_X86_ISATRAITS_HH__
+#define __ARCH_X86_ISATRAITS_HH__
+
+#include "arch/x86/intregs.hh"
+#include "arch/x86/types.hh"
+#include "arch/x86/x86_traits.hh"
+
+class StaticInstPtr;
+
+namespace LittleEndianGuest {}
+
+namespace X86ISA
+{
+ //This makes sure the little endian version of certain functions
+ //are used.
+ using namespace LittleEndianGuest;
+
+ // X86 does not have a delay slot
+#define ISA_HAS_DELAY_SLOT 0
+
+ // X86 NOP (XCHG rAX, rAX)
+ //XXX This needs to be set to an intermediate instruction struct
+ //which encodes this instruction
+
+ // These enumerate all the registers for dependence tracking.
+ enum DependenceTags {
+ //The number of microcode registers needs to be added to this
+ FP_Base_DepTag = 16,
+ Ctrl_Base_DepTag =
+ FP_Base_DepTag +
+ //mmx/x87 registers
+ 8 +
+ //xmm registers
+ 16
+ };
+
+ // semantically meaningful register indices
+ //There is no such register in X86
+ const int ZeroReg = 0;
+ const int StackPointerReg = INTREG_RSP;
+ //X86 doesn't seem to have a link register
+ const int ReturnAddressReg = 0;
+ const int ReturnValueReg = INTREG_RAX;
+ const int FramePointerReg = INTREG_RBP;
+ const int ArgumentReg0 = INTREG_RDI;
+ const int ArgumentReg1 = INTREG_RSI;
+ const int ArgumentReg2 = INTREG_RDX;
+ const int ArgumentReg3 = INTREG_RCX;
+ const int ArgumentReg4 = INTREG_R8W;
+ const int ArgumentReg5 = INTREG_R9W;
+
+ // Some OS syscalls use a second register (rdx) to return a second
+ // value
+ const int SyscallPseudoReturnReg = INTREG_RDX;
+
+ //XXX These numbers are bogus
+ const int MaxInstSrcRegs = 10;
+ const int MaxInstDestRegs = 10;
+
+ //4k. This value is not constant on x86.
+ const int LogVMPageSize = 12;
+ const int VMPageSize = (1 << LogVMPageSize);
+
+ const int PageShift = 13;
+ const int PageBytes = 1ULL << PageShift;
+
+ const int BranchPredAddrShiftAmt = 0;
+
+ StaticInstPtr decodeInst(ExtMachInst);
+};
+
+#endif // __ARCH_X86_ISATRAITS_HH__