pcsx2/common/emitter/implement/simd_comparisons.h

/*  PCSX2 - PS2 Emulator for PCs
 *  Copyright (C) 2002-2010  PCSX2 Dev Team
 *
 *  PCSX2 is free software: you can redistribute it and/or modify it under the terms
 *  of the GNU Lesser General Public License as published by the Free Software Found-
 *  ation, either version 3 of the License, or (at your option) any later version.
 *
 *  PCSX2 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 PCSX2.
 *  If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

namespace x86Emitter
{

	struct xImplSimd_MinMax
	{
		const xImplSimd_DestRegSSE PS; // packed single precision
		const xImplSimd_DestRegSSE PD; // packed double precision
		const xImplSimd_DestRegSSE SS; // scalar single precision
		const xImplSimd_DestRegSSE SD; // scalar double precision
	};

	//////////////////////////////////////////////////////////////////////////////////////////
	//
	struct xImplSimd_Compare
	{
		SSE2_ComparisonType CType;

		void PS(const xRegisterSSE& to, const xRegisterSSE& from) const;
		void PS(const xRegisterSSE& to, const xIndirectVoid& from) const;

		void PD(const xRegisterSSE& to, const xRegisterSSE& from) const;
		void PD(const xRegisterSSE& to, const xIndirectVoid& from) const;

		void SS(const xRegisterSSE& to, const xRegisterSSE& from) const;
		void SS(const xRegisterSSE& to, const xIndirectVoid& from) const;

		void SD(const xRegisterSSE& to, const xRegisterSSE& from) const;
		void SD(const xRegisterSSE& to, const xIndirectVoid& from) const;
	};

	//////////////////////////////////////////////////////////////////////////////////////////
	// Compare scalar floating point values and set EFLAGS (Ordered or Unordered)
	//
	struct xImplSimd_COMI
	{
		const xImplSimd_DestRegSSE SS;
		const xImplSimd_DestRegSSE SD;
	};


	//////////////////////////////////////////////////////////////////////////////////////////
	//
	struct xImplSimd_PCompare
	{
	public:
		// Compare packed bytes for equality.
		// If a data element in dest is equal to the corresponding date element src, the
		// corresponding data element in dest is set to all 1s; otherwise, it is set to all 0s.
		const xImplSimd_DestRegEither EQB;

		// Compare packed words for equality.
		// If a data element in dest is equal to the corresponding date element src, the
		// corresponding data element in dest is set to all 1s; otherwise, it is set to all 0s.
		const xImplSimd_DestRegEither EQW;

		// Compare packed doublewords [32-bits] for equality.
		// If a data element in dest is equal to the corresponding date element src, the
		// corresponding data element in dest is set to all 1s; otherwise, it is set to all 0s.
		const xImplSimd_DestRegEither EQD;

		// Compare packed signed bytes for greater than.
		// If a data element in dest is greater than the corresponding date element src, the
		// corresponding data element in dest is set to all 1s; otherwise, it is set to all 0s.
		const xImplSimd_DestRegEither GTB;

		// Compare packed signed words for greater than.
		// If a data element in dest is greater than the corresponding date element src, the
		// corresponding data element in dest is set to all 1s; otherwise, it is set to all 0s.
		const xImplSimd_DestRegEither GTW;

		// Compare packed signed doublewords [32-bits] for greater than.
		// If a data element in dest is greater than the corresponding date element src, the
		// corresponding data element in dest is set to all 1s; otherwise, it is set to all 0s.
		const xImplSimd_DestRegEither GTD;
	};

	//////////////////////////////////////////////////////////////////////////////////////////
	//
	struct xImplSimd_PMinMax
	{
		// Compare packed unsigned byte integers in dest to src and store packed min/max
		// values in dest.
		const xImplSimd_DestRegEither UB;

		// Compare packed signed word integers in dest to src and store packed min/max
		// values in dest.
		const xImplSimd_DestRegEither SW;

		// [SSE-4.1] Compare packed signed byte integers in dest to src and store
		// packed min/max values in dest. (SSE operands only)
		const xImplSimd_DestRegSSE SB;

		// [SSE-4.1] Compare packed signed doubleword integers in dest to src and store
		// packed min/max values in dest. (SSE operands only)
		const xImplSimd_DestRegSSE SD;

		// [SSE-4.1] Compare packed unsigned word integers in dest to src and store
		// packed min/max values in dest. (SSE operands only)
		const xImplSimd_DestRegSSE UW;

		// [SSE-4.1] Compare packed unsigned doubleword integers in dest to src and store
		// packed min/max values in dest. (SSE operands only)
		const xImplSimd_DestRegSSE UD;
	};

} // end namespace x86Emitter