From bc3635a110747123be066de5238961938ea5df78 Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Wed, 29 Aug 2007 20:34:52 -0700
Subject: X86: Flesh out register indexing constants.

--HG--
extra : convert_revision : 56eedc076bbb7962c3976599a15ed93c7cb154c0
---
 src/arch/x86/miscregs.hh | 81 ++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 71 insertions(+), 10 deletions(-)

(limited to 'src/arch/x86/miscregs.hh')

diff --git a/src/arch/x86/miscregs.hh b/src/arch/x86/miscregs.hh
index 8792bf6dd..01499e7ad 100644
--- a/src/arch/x86/miscregs.hh
+++ b/src/arch/x86/miscregs.hh
@@ -58,6 +58,7 @@
 #ifndef __ARCH_X86_MISCREGS_HH__
 #define __ARCH_X86_MISCREGS_HH__
 
+#include "arch/x86/x86_traits.hh"
 #include "base/bitunion.hh"
 
 namespace X86ISA
@@ -97,7 +98,7 @@ namespace X86ISA
         MISCREG_CR15,
 
         // Debug registers
-        MISCREG_DR_BASE,
+        MISCREG_DR_BASE = MISCREG_CR_BASE + NumCRegs,
         MISCREG_DR0 = MISCREG_DR_BASE,
         MISCREG_DR1,
         MISCREG_DR2,
@@ -108,7 +109,7 @@ namespace X86ISA
         MISCREG_DR7,
 
         // Flags register
-        MISCREG_RFLAGS,
+        MISCREG_RFLAGS = MISCREG_DR_BASE + NumDRegs,
 
         // Segment selectors
         MISCREG_SEG_SEL_BASE,
@@ -120,7 +121,7 @@ namespace X86ISA
         MISCREG_GS,
 
         // Hidden segment base field
-        MISCREG_SEG_BASE_BASE,
+        MISCREG_SEG_BASE_BASE = MISCREG_SEG_SEL_BASE + NumSegments,
         MISCREG_ES_BASE = MISCREG_SEG_BASE_BASE,
         MISCREG_CS_BASE,
         MISCREG_SS_BASE,
@@ -129,7 +130,7 @@ namespace X86ISA
         MISCREG_GS_BASE,
 
         // Hidden segment limit field
-        MISCREG_SEG_LIMIT_BASE,
+        MISCREG_SEG_LIMIT_BASE = MISCREG_SEG_BASE_BASE + NumSegments,
         MISCREG_ES_LIMIT = MISCREG_SEG_LIMIT_BASE,
         MISCREG_CS_LIMIT,
         MISCREG_SS_LIMIT,
@@ -138,7 +139,7 @@ namespace X86ISA
         MISCREG_GS_LIMIT,
 
         // Hidden segment limit attributes
-        MISCREG_SEG_ATTR_BASE,
+        MISCREG_SEG_ATTR_BASE = MISCREG_SEG_LIMIT_BASE + NumSegments,
         MISCREG_ES_ATTR = MISCREG_SEG_ATTR_BASE,
         MISCREG_CS_ATTR,
         MISCREG_SS_ATTR,
@@ -147,34 +148,94 @@ namespace X86ISA
         MISCREG_GS_ATTR,
 
         // System segment selectors
-        MISCREG_SYSSEG_SEL_BASE,
+        MISCREG_SYSSEG_SEL_BASE = MISCREG_SEG_ATTR_BASE + NumSegments,
         MISCREG_LDTR = MISCREG_SYSSEG_SEL_BASE,
         MISCREG_TR,
 
         // Hidden system segment base field
-        MISCREG_SYSSEG_BASE_BASE,
+        MISCREG_SYSSEG_BASE_BASE = MISCREG_SYSSEG_SEL_BASE + NumSysSegments,
         MISCREG_LDTR_BASE = MISCREG_SYSSEG_BASE_BASE,
         MISCREG_TR_BASE,
         MISCREG_GDTR_BASE,
         MISCREG_IDTR_BASE,
 
         // Hidden system segment limit field
-        MISCREG_SYSSEG_LIMIT_BASE,
+        MISCREG_SYSSEG_LIMIT_BASE = MISCREG_SYSSEG_BASE_BASE + NumSysSegments,
         MISCREG_LDTR_LIMIT = MISCREG_SYSSEG_LIMIT_BASE,
         MISCREG_TR_LIMIT,
         MISCREG_GDTR_LIMIT,
         MISCREG_IDTR_LIMIT,
 
         // Hidden system segment attribute field
-        MISCREG_SYSSEG_ATTR_BASE,
+        MISCREG_SYSSEG_ATTR_BASE = MISCREG_SYSSEG_LIMIT_BASE + NumSysSegments,
         MISCREG_LDTR_ATTR = MISCREG_SYSSEG_ATTR_BASE,
         MISCREG_TR_ATTR,
 
         //XXX Add "Model-Specific Registers"
 
-        NUM_MISCREGS
+        NUM_MISCREGS = MISCREG_SYSSEG_ATTR_BASE + NumSysSegments
     };
 
+    static inline MiscRegIndex
+    MISCREG_CR(int index)
+    {
+        return (MiscRegIndex)(MISCREG_CR_BASE + index);
+    }
+
+    static inline MiscRegIndex
+    MISCREG_DR(int index)
+    {
+        return (MiscRegIndex)(MISCREG_DR_BASE + index);
+    }
+
+    static inline MiscRegIndex
+    MISCREG_SEG_SEL(int index)
+    {
+        return (MiscRegIndex)(MISCREG_SEG_SEL_BASE + index);
+    }
+
+    static inline MiscRegIndex
+    MISCREG_SEG_BASE(int index)
+    {
+        return (MiscRegIndex)(MISCREG_SEG_BASE_BASE + index);
+    }
+
+    static inline MiscRegIndex
+    MISCREG_SEG_LIMIT(int index)
+    {
+        return (MiscRegIndex)(MISCREG_SEG_LIMIT_BASE + index);
+    }
+
+    static inline MiscRegIndex
+    MISCREG_SEG_ATTR(int index)
+    {
+        return (MiscRegIndex)(MISCREG_SEG_ATTR_BASE + index);
+    }
+
+    static inline MiscRegIndex
+    MISCREG_SYSSEG_SEL(int index)
+    {
+        return (MiscRegIndex)(MISCREG_SYSSEG_SEL_BASE + index);
+    }
+
+    static inline MiscRegIndex
+    MISCREG_SYSSEG_BASE(int index)
+    {
+        return (MiscRegIndex)(MISCREG_SYSSEG_BASE_BASE + index);
+    }
+
+    static inline MiscRegIndex
+    MISCREG_SYSSEG_LIMIT(int index)
+    {
+        return (MiscRegIndex)(MISCREG_SYSSEG_LIMIT_BASE + index);
+    }
+
+    static inline MiscRegIndex
+    MISCREG_SYSSEG_ATTR(int index)
+    {
+        return (MiscRegIndex)(MISCREG_SYSSEG_ATTR_BASE + index);
+    }
+
     /**
      * A type to describe the condition code bits of the RFLAGS register,
      * plus two flags, EZF and ECF, which are only visible to microcode.
-- 
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