1 files changed, 101 insertions, 0 deletions
diff --git a/src/gpu-compute/condition_register_state.hh b/src/gpu-compute/condition_register_state.hh
new file mode 100644
index 000000000..139874a66
--- /dev/null
+++ b/src/gpu-compute/condition_register_state.hh
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2015 Advanced Micro Devices, Inc.
+ * All rights reserved.
+ *
+ * For use for simulation and test purposes only
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. 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.
+ *
+ * 3. Neither the name of the copyright holder 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 HOLDER 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.
+ *
+ * Author: John Kalamatianos
+ */
+
+#ifndef __CONDITION_REGISTER_STATE_HH__
+#define __CONDITION_REGISTER_STATE_HH__
+
+#include <string>
+#include <vector>
+
+#include "gpu-compute/misc.hh"
+
+class ComputeUnit;
+class GPUStaticInst;
+class Shader;
+class Wavefront;
+
+// Condition Register State (used only when executing HSAIL)
+class ConditionRegisterState
+{
+  public:
+    ConditionRegisterState();
+    void init(uint32_t _size);
+    const std::string name() const { return _name; }
+    void setParent(ComputeUnit *_computeUnit);
+    void regStats() { }
+
+    template<typename T>
+    T
+    read(int regIdx, int threadId)
+    {
+        bool tmp = c_reg[regIdx][threadId];
+        T *p0 = (T*)(&tmp);
+
+        return *p0;
+    }
+
+    template<typename T>
+    void
+    write(int regIdx, int threadId, T value)
+    {
+        c_reg[regIdx][threadId] = (bool)(value & 0x01);
+    }
+
+    void
+    markReg(int regIdx, uint8_t value)
+    {
+        busy.at(regIdx) = value;
+    }
+
+    uint8_t
+    regBusy(int idx)
+    {
+        uint8_t status = busy.at(idx);
+        return status;
+    }
+
+    int numRegs() { return c_reg.size(); }
+    void exec(GPUStaticInst *ii, Wavefront *w);
+
+  private:
+    ComputeUnit* computeUnit;
+    std::string _name;
+    // Condition Register state
+    std::vector<VectorMask> c_reg;
+    // flag indicating if a register is busy
+    std::vector<uint8_t> busy;
+};
+
+#endif