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+// Copyright 2016 David Li
+// This file is part of rustv.
+
+// rustv is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// rustv is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with rustv. If not, see <http://www.gnu.org/licenses/>.
+
+use isa;
+
+#[derive(Debug)]
+pub enum Trap {
+ IllegalInstruction {
+ address: isa::Address,
+ instruction: isa::Instruction,
+ },
+ IllegalRead {
+ address: isa::Address,
+ instruction: isa::Instruction,
+ memory_address: isa::Address,
+ },
+ IllegalWrite {
+ address: isa::Address,
+ instruction: isa::Instruction,
+ memory_address: isa::Address,
+ memory_value: isa::Word,
+ }
+}