diff options
Diffstat (limited to 'Source/Core/DSPCore/Src/DSPIntCCUtil.cpp')
| -rw-r--r-- | Source/Core/DSPCore/Src/DSPIntCCUtil.cpp | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/Source/Core/DSPCore/Src/DSPIntCCUtil.cpp b/Source/Core/DSPCore/Src/DSPIntCCUtil.cpp deleted file mode 100644 index 644ce60663..0000000000 --- a/Source/Core/DSPCore/Src/DSPIntCCUtil.cpp +++ /dev/null @@ -1,197 +0,0 @@ -// Copyright (C) 2003 Dolphin Project. - -// This program 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, version 2.0. - -// This program 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 2.0 for more details. - -// A copy of the GPL 2.0 should have been included with the program. -// If not, see http://www.gnu.org/licenses/ - -// Official SVN repository and contact information can be found at -// http://code.google.com/p/dolphin-emu/ - -// Additional copyrights go to Duddie and Tratax (c) 2004 - - -// HELPER FUNCTIONS - -#include "DSPIntCCUtil.h" -#include "DSPCore.h" -#include "DSPInterpreter.h" - -namespace DSPInterpreter { - -void Update_SR_Register64(s64 _Value, bool carry, bool overflow) -{ - g_dsp.r.sr &= ~SR_CMP_MASK; - - // 0x01 - if (carry) - { - g_dsp.r.sr |= SR_CARRY; - } - - // 0x02 and 0x80 - if (overflow) - { - g_dsp.r.sr |= SR_OVERFLOW; - g_dsp.r.sr |= SR_OVERFLOW_STICKY; - } - - // 0x04 - if (_Value == 0) - { - g_dsp.r.sr |= SR_ARITH_ZERO; - } - - // 0x08 - if (_Value < 0) - { - g_dsp.r.sr |= SR_SIGN; - } - - // 0x10 - if (_Value != (s32)_Value) - { - g_dsp.r.sr |= SR_OVER_S32; - } - - // 0x20 - Checks if top bits of m are equal - if (((_Value & 0xc0000000) == 0) || ((_Value & 0xc0000000) == 0xc0000000)) - { - g_dsp.r.sr |= SR_TOP2BITS; - } -} - - -void Update_SR_Register16(s16 _Value, bool carry, bool overflow, bool overS32) -{ - g_dsp.r.sr &= ~SR_CMP_MASK; - - // 0x01 - if (carry) - { - g_dsp.r.sr |= SR_CARRY; - } - - // 0x02 and 0x80 - if (overflow) - { - g_dsp.r.sr |= SR_OVERFLOW; - g_dsp.r.sr |= SR_OVERFLOW_STICKY; - } - - // 0x04 - if (_Value == 0) - { - g_dsp.r.sr |= SR_ARITH_ZERO; - } - - // 0x08 - if (_Value < 0) - { - g_dsp.r.sr |= SR_SIGN; - } - - // 0x10 - if (overS32) - { - g_dsp.r.sr |= SR_OVER_S32; - } - - // 0x20 - Checks if top bits of m are equal - if ((((u16)_Value >> 14) == 0) || (((u16)_Value >> 14) == 3)) - { - g_dsp.r.sr |= SR_TOP2BITS; - } -} - -void Update_SR_LZ(bool value) -{ - if (value == true) - g_dsp.r.sr |= SR_LOGIC_ZERO; - else - g_dsp.r.sr &= ~SR_LOGIC_ZERO; -} - -inline int GetMultiplyModifier() -{ - return (g_dsp.r.sr & SR_MUL_MODIFY)?1:2; -} - -inline bool isCarry() { - return (g_dsp.r.sr & SR_CARRY) ? true : false; -} - -inline bool isOverflow() { - return (g_dsp.r.sr & SR_OVERFLOW) ? true : false; -} - -inline bool isOverS32() { - return (g_dsp.r.sr & SR_OVER_S32) ? true : false; -} - -inline bool isLess() { - return (!(g_dsp.r.sr & SR_OVERFLOW) != !(g_dsp.r.sr & SR_SIGN)); -} - -inline bool isZero() { - return (g_dsp.r.sr & SR_ARITH_ZERO) ? true : false; -} - -inline bool isLogicZero() { - return (g_dsp.r.sr & SR_LOGIC_ZERO) ? true : false; -} - -inline bool isConditionA() { - return (((g_dsp.r.sr & SR_OVER_S32) || (g_dsp.r.sr & SR_TOP2BITS)) && !(g_dsp.r.sr & SR_ARITH_ZERO)) ? true : false; -} - -//see DSPCore.h for flags -bool CheckCondition(u8 _Condition) -{ - switch (_Condition & 0xf) - { - case 0xf: // Always true. - return true; - case 0x0: // GE - Greater Equal - return !isLess(); - case 0x1: // L - Less - return isLess(); - case 0x2: // G - Greater - return !isLess() && !isZero(); - case 0x3: // LE - Less Equal - return isLess() || isZero(); - case 0x4: // NZ - Not Zero - return !isZero(); - case 0x5: // Z - Zero - return isZero(); - case 0x6: // NC - Not carry - return !isCarry(); - case 0x7: // C - Carry - return isCarry(); - case 0x8: // ? - Not over s32 - return !isOverS32(); - case 0x9: // ? - Over s32 - return isOverS32(); - case 0xa: // ? - return isConditionA(); - case 0xb: // ? - return !isConditionA(); - case 0xc: // LNZ - Logic Not Zero - return !isLogicZero(); - case 0xd: // LZ - Logic Zero - return isLogicZero(); - case 0xe: // 0 - Overflow - return isOverflow(); - default: - return true; - } -} - -} // namespace |