arch-riscv: Move standard ops out of ISA

This patch removes static portions of the standard instruction types
from the generated ISA code and puts them into arch/riscv/insts. Some
dynamically-generated content is left behind for each individual
instruction's implementation. Also, BranchOp is removed due to its
similarity with ImmOp and ImmOp and UImmOp are joined into a single
templated class, ImmOp<T>.

Change-Id: I1bf47c8b8a92a5be74a50909fcc51d8551185a2a
Reviewed-on: https://gem5-review.googlesource.com/6022
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Alec Roelke <ar4jc@virginia.edu>

1 files changed, 67 insertions, 0 deletions

diff --git a/src/arch/riscv/insts/standard.cc b/src/arch/riscv/insts/standard.cc
new file mode 100644
index 000000000..bcf0741f9
--- /dev/null
+++ b/src/arch/riscv/insts/standard.cc
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2015 RISC-V Foundation
+ * Copyright (c) 2017 The University of Virginia
+ * 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: Alec Roelke
+ */
+
+#include "arch/riscv/insts/standard.hh"
+
+#include <sstream>
+#include <string>
+
+#include "arch/riscv/insts/static_inst.hh"
+#include "arch/riscv/utility.hh"
+#include "cpu/static_inst.hh"
+
+using namespace std;
+
+namespace RiscvISA
+{
+
+string
+RegOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+{
+    stringstream ss;
+    ss << mnemonic << ' ' << registerName(_destRegIdx[0]) << ", " <<
+        registerName(_srcRegIdx[0]) << ", " <<
+        registerName(_srcRegIdx[1]);
+    return ss.str();
+}
+
+string
+CSROp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+{
+    stringstream ss;
+    ss << mnemonic << ' ' << registerName(_destRegIdx[0]) << ", ";
+    if (_numSrcRegs > 0)
+        ss << registerName(_srcRegIdx[0]) << ", ";
+    ss << MiscRegNames.at(csr);
+    return ss.str();
+}
+
+}
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