ARM: Move util functions out of the isa desc.

1 files changed, 0 insertions, 271 deletions

diff --git a/src/arch/arm/isa/util.isa b/src/arch/arm/isa/util.isa
deleted file mode 100644
index b36206d2a..000000000
--- a/src/arch/arm/isa/util.isa
+++ /dev/null
@@ -1,271 +0,0 @@
-// -*- mode:c++ -*-
-
-// Copyright (c) 2007-2008 The Florida State University
-// 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: Stephen Hines
-
-////////////////////////////////////////////////////////////////////
-//
-// Utility functions for execute methods
-//
-//
-output header {{
-
-    // Shift types for ARM instructions
-    enum ArmShiftType {
-        LSL = 0,
-        LSR,
-        ASR,
-        ROR
-    };
-
-    enum ArmShiftMode {
-    };
-
-}};
-
-output exec {{
-
-    static int32_t arm_NEG(int32_t val) { return (val >> 31); }
-    static int32_t arm_POS(int32_t val) { return ((~val) >> 31); }
-
-    // Shift Rm by an immediate value
-    inline int32_t
-    shift_rm_imm(uint32_t base, uint32_t shamt, uint32_t type, uint32_t cfval)
-    {
-        enum ArmShiftType shiftType;
-        shiftType = (enum ArmShiftType) type;
-
-        switch (shiftType)
-        {
-            case LSL:
-                return (base << shamt);
-            case LSR:
-                if (shamt == 0)
-                    return (0);
-                else
-                    return (base >> shamt);
-            case ASR:
-                if (shamt == 0)
-                    return ((uint32_t) ((int32_t) base >> 31L));
-                else
-                    return ((uint32_t) (((int32_t) base) >> shamt));
-            case ROR:
-                //shamt = shamt & 0x1f;
-                if (shamt == 0)
-                    return (cfval << 31) | (base >> 1); // RRX
-                else
-                    return (base << (32 - shamt)) | (base >> shamt);
-            default:
-                fprintf(stderr, "Unhandled shift type\n");
-                exit(1);
-                break;
-        }
-        return 0;
-    }
-
-    // Shift Rm by Rs
-    inline int32_t
-    shift_rm_rs(uint32_t base, uint32_t shamt, uint32_t type, uint32_t cfval)
-    {
-        enum ArmShiftType shiftType;
-        shiftType = (enum ArmShiftType) type;
-
-        switch (shiftType)
-        {
-            case LSL:
-                if (shamt == 0)
-                    return (base);
-                else if (shamt >= 32)
-                    return (0);
-                else
-                    return (base << shamt);
-            case LSR:
-                if (shamt == 0)
-                    return (base);
-                else if (shamt >= 32)
-                    return (0);
-                else
-                    return (base >> shamt);
-            case ASR:
-                if (shamt == 0)
-                    return base;
-                else if (shamt >= 32)
-                    return ((uint32_t) ((int32_t) base >> 31L));
-                else
-                    return ((uint32_t) (((int32_t) base) >> (int) shamt));
-            case ROR:
-                shamt = shamt & 0x1f;
-                if (shamt == 0)
-                    return (base);
-                else
-                    return ((base << (32 - shamt)) | (base >> shamt));
-            default:
-                fprintf(stderr, "Unhandled shift type\n");
-                exit(1);
-                break;
-        }
-        return 0;
-    }
-
-
-    // Generate C for a shift by immediate
-    inline int32_t
-    shift_carry_imm(uint32_t base, uint32_t shamt, uint32_t type,
-        uint32_t cfval)
-    {
-        enum ArmShiftType shiftType;
-        shiftType = (enum ArmShiftType) type;
-
-        switch (shiftType)
-        {
-            case LSL:
-                return (base >> (32 - shamt)) & 1;
-            case LSR:
-                if (shamt == 0)
-                    return (base >> 31) & 1;
-                else
-                    return (base >> (shamt - 1)) & 1;
-            case ASR:
-                if (shamt == 0)
-                    return (base >> 31L);
-                else
-                    return ((uint32_t) (((int32_t) base) >> (shamt - 1))) & 1;
-            case ROR:
-                shamt = shamt & 0x1f;
-                if (shamt == 0)
-                    return (base & 1); // RRX
-                else
-                    return (base >> (shamt - 1)) & 1;
-            default:
-                fprintf(stderr, "Unhandled shift type\n");
-                exit(1);
-                break;
-
-        }
-        return 0;
-    }
-
-
-    // Generate C for a shift by Rs
-    inline int32_t
-    shift_carry_rs(uint32_t base, uint32_t shamt, uint32_t type, uint32_t cfval)
-    {
-        enum ArmShiftType shiftType;
-        shiftType = (enum ArmShiftType) type;
-
-        switch (shiftType)
-        {
-            case LSL:
-                if (shamt == 0)
-                    return (!!cfval);
-                else if (shamt == 32)
-                    return (base & 1);
-                else if (shamt > 32)
-                    return (0);
-                else
-                    return ((base >> (32 - shamt)) & 1);
-            case LSR:
-                if (shamt == 0)
-                    return (!!cfval);
-                else if (shamt == 32)
-                    return (base >> 31);
-                else if (shamt > 32)
-                    return (0);
-                else
-                    return ((base >> (shamt - 1)) & 1);
-            case ASR:
-                if (shamt == 0)
-                    return (!!cfval);
-                else if (shamt >= 32)
-                    return (base >> 31L);
-                else
-                    return (((uint32_t) (((int32_t) base) >> (shamt - 1))) & 1);
-            case ROR:
-                if (shamt == 0)
-                    return (!!cfval);
-                shamt = shamt & 0x1f;
-                if (shamt == 0)
-                    return (base >> 31); // RRX
-                else
-                    return ((base >> (shamt - 1)) & 1);
-            default:
-                fprintf(stderr, "Unhandled shift type\n");
-                exit(1);
-                break;
-
-        }
-        return 0;
-    }
-
-
-    // Generate the appropriate carry bit for an addition operation
-    inline int32_t
-    arm_add_carry(int32_t result, int32_t lhs, int32_t rhs)
-    {
-        if ((lhs | rhs) >> 30)
-            return ((arm_NEG(lhs) && arm_NEG(rhs)) ||
-                    (arm_NEG(lhs) && arm_POS(result)) ||
-                    (arm_NEG(rhs) && arm_POS(result)));
-
-        return 0;
-    }
-
-    // Generate the appropriate carry bit for a subtraction operation
-    inline int32_t
-    arm_sub_carry(int32_t result, int32_t lhs, int32_t rhs)
-    {
-        if ((lhs >= rhs) || ((rhs | lhs) >> 31))
-            return ((arm_NEG(lhs) && arm_POS(rhs)) ||
-                    (arm_NEG(lhs) && arm_POS(result)) ||
-                    (arm_POS(rhs) && arm_POS(result)));
-
-        return 0;
-    }
-
-    inline int32_t
-    arm_add_overflow(int32_t result, int32_t lhs, int32_t rhs)
-    {
-        if ((lhs | rhs) >> 30)
-            return ((arm_NEG(lhs) && arm_NEG(rhs) && arm_POS(result)) ||
-                    (arm_POS(lhs) && arm_POS(rhs) && arm_NEG(result)));
-
-        return 0;
-    }
-
-    inline int32_t
-    arm_sub_overflow(int32_t result, int32_t lhs, int32_t rhs)
-    {
-        if ((lhs >= rhs) || ((rhs | lhs) >> 31))
-            return ((arm_NEG(lhs) && arm_POS(rhs) && arm_POS(result)) ||
-                    (arm_POS(lhs) && arm_NEG(rhs) && arm_NEG(result)));
-
-        return 0;
-    }
-
-}};
-