937ed3a0a2
Replace manual creation of masks for sign extension of immediates with the sext<N> function. Change-Id: Ief2df91a25500c64f5bcae0dcd437c1e3bb95e6c Reviewed-on: https://gem5-review.googlesource.com/6182 Reviewed-by: Alec Roelke <ar4jc@virginia.edu> Maintainer: Alec Roelke <ar4jc@virginia.edu>
113 lines
3.3 KiB
C++
113 lines
3.3 KiB
C++
// -*- mode:c++ -*-
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// Copyright (c) 2015 RISC-V Foundation
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// Copyright (c) 2016 The University of Virginia
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met: redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer;
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// redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution;
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// neither the name of the copyright holders nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Authors: Maxwell Walter
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// Alec Roelke
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////////////////////////////////////////////////////////////////////
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//
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// Bitfield definitions.
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//
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def bitfield QUADRANT <1:0>;
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def bitfield OPCODE <6:2>;
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// R-Type
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def bitfield ALL <31:0>;
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def bitfield RD <11:7>;
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def bitfield FUNCT3 <14:12>;
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def bitfield RS1 <19:15>;
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def bitfield RS2 <24:20>;
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def bitfield FUNCT7 <31:25>;
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// Bit shifts
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def bitfield SRTYPE <30>;
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def bitfield SHAMT5 <24:20>;
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def bitfield SHAMT6 <25:20>;
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// I-Type
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def bitfield IMM12 <31:20>;
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// S-Type
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def bitfield IMM5 <11:7>;
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def bitfield IMM7 <31:25>;
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// U-Type
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def bitfield IMM20 <31:12>;
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// SB-Type
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def bitfield BIMM12BIT11 <7>;
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def bitfield BIMM12BITS4TO1<11:8>;
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def bitfield BIMM12BITS10TO5 <30:25>;
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def bitfield IMMSIGN <31>;
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// UJ-Type
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def bitfield UJIMMBITS10TO1 <30:21>;
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def bitfield UJIMMBIT11 <20>;
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def bitfield UJIMMBITS19TO12 <19:12>;
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// System
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def bitfield FUNCT12 <31:20>;
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def bitfield CSRIMM <19:15>;
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// Floating point
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def bitfield FD <11:7>;
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def bitfield FS1 <19:15>;
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def bitfield FS2 <24:20>;
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def bitfield FS3 <31:27>;
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def bitfield ROUND_MODE <14:12>;
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def bitfield CONV_SGN <24:20>;
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def bitfield FUNCT2 <26:25>;
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// AMO
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def bitfield AMOFUNCT <31:27>;
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def bitfield AQ <26>;
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def bitfield RL <25>;
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// Compressed
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def bitfield COPCODE <15:13>;
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def bitfield CFUNCT1 <12>;
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def bitfield CFUNCT2HIGH <11:10>;
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def bitfield CFUNCT2LOW <6:5>;
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def bitfield RC1 <11:7>;
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def bitfield RC2 <6:2>;
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def bitfield RP1 <9:7>;
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def bitfield RP2 <4:2>;
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def bitfield FC1 <11:7>;
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def bitfield FC2 <6:2>;
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def bitfield FP2 <4:2>;
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def bitfield CJUMPIMM <12:2>;
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def bitfield CIMM8 <12:5>;
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def bitfield CIMM6 <12:7>;
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def bitfield CIMM5 <6:2>;
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def bitfield CIMM3 <12:10>;
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def bitfield CIMM2 <6:5>;
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def bitfield CIMM1 <12>;
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