130 lines
2.2 KiB
C++
130 lines
2.2 KiB
C++
// Copyright (C) 2003-2009 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#ifndef HLE_HELPER_H
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#define HLE_HELPER_H
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#include "gdsp_interpreter.h"
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bool WriteDMEM(u16 addr, u16 val);
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u16 ReadDMEM(u16 addr);
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void Update_SR_Register(s64 _Value);
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s8 GetMultiplyModifier();
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template<unsigned N>
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class TAccumulator
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{
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public:
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TAccumulator()
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{
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_assert_(N < 2);
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}
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void operator=(s64 val)
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{
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setValue(val);
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}
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void operator<<=(s64 value)
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{
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s64 acc = getValue();
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acc <<= value;
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setValue(acc);
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}
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void operator>>=(s64 value)
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{
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s64 acc = getValue();
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acc >>= value;
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setValue(acc);
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}
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void operator+=(s64 value)
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{
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s64 acc = getValue();
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acc += value;
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setValue(acc);
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}
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operator s64()
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{
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return getValue();
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}
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operator u64()
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{
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return getValue();
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}
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inline void setValue(s64 val)
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{
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g_dsp.r[0x1c + N] = (u16)val;
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val >>= 16;
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g_dsp.r[0x1e + N] = (u16)val;
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val >>= 16;
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g_dsp.r[0x10 + N] = (u16)val;
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}
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inline s64 getValue()
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{
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s64 val;
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s64 low_acc;
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val = (s8)g_dsp.r[0x10 + N];
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val <<= 32;
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low_acc = g_dsp.r[0x1e + N];
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low_acc <<= 16;
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low_acc |= g_dsp.r[0x1c + N];
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val |= low_acc;
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return(val);
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}
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};
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class CProd
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{
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public:
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CProd()
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{
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}
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void operator=(s64 val)
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{
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g_dsp.r[0x14] = (u16)val;
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val >>= 16;
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g_dsp.r[0x15] = (u16)val;
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val >>= 16;
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g_dsp.r[0x16] = (u16)val;
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g_dsp.r[0x17] = 0;
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}
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operator s64()
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{
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s64 val;
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s64 low_prod;
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val = (s8)g_dsp.r[0x16];
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val <<= 32;
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low_prod = g_dsp.r[0x15];
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low_prod += g_dsp.r[0x17];
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low_prod <<= 16;
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low_prod |= g_dsp.r[0x14];
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val += low_prod;
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return(val);
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}
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};
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#endif
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