101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
/*
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* Copyright (c) 2015 Advanced Micro Devices, Inc.
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* All rights reserved.
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*
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* For use for simulation and test purposes only
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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 met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* Author: John Kalamatianos
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*/
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#ifndef __CONDITION_REGISTER_STATE_HH__
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#define __CONDITION_REGISTER_STATE_HH__
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#include <string>
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#include <vector>
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#include "gpu-compute/misc.hh"
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class ComputeUnit;
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class GPUStaticInst;
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class Shader;
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class Wavefront;
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// Condition Register State (used only when executing HSAIL)
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class ConditionRegisterState
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{
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public:
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ConditionRegisterState();
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void init(uint32_t _size);
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const std::string name() const { return _name; }
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void setParent(ComputeUnit *_computeUnit);
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void regStats() { }
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template<typename T>
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T
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read(int regIdx, int threadId)
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{
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bool tmp = c_reg[regIdx][threadId];
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T *p0 = (T*)(&tmp);
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return *p0;
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}
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template<typename T>
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void
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write(int regIdx, int threadId, T value)
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{
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c_reg[regIdx][threadId] = (bool)(value & 0x01);
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}
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void
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markReg(int regIdx, uint8_t value)
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{
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busy.at(regIdx) = value;
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}
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uint8_t
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regBusy(int idx)
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{
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uint8_t status = busy.at(idx);
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return status;
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}
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int numRegs() { return c_reg.size(); }
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void exec(GPUStaticInst *ii, Wavefront *w);
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private:
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ComputeUnit* computeUnit;
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std::string _name;
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// Condition Register state
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std::vector<VectorMask> c_reg;
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// flag indicating if a register is busy
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std::vector<uint8_t> busy;
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};
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#endif
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