Initial PGXP CPU commit

- Restructured project to base interface on PSX instructions
- Support for all relevant CPU arithmetic and logic instructions
- Debug output available via deferred PGXP calls
- Remove most dependencies on PCSXR
- Still very much a work in progress (lots of errors)

- Add extra debug information to GPU plugin (w values)

1 files changed, 116 insertions, 0 deletions

diff --git a/libpcsxcore/pgxp_value.h b/libpcsxcore/pgxp_value.h
new file mode 100644
index 00000000..09bd8925
--- /dev/null
+++ b/libpcsxcore/pgxp_value.h
@@ -0,0 +1,116 @@
+/***************************************************************************
+*   Copyright (C) 2016 by iCatButler                                      *
+*                                                                         *
+*   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; either version 2 of the License, or     *
+*   (at your option) any later version.                                   *
+*                                                                         *
+*   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 for more details.                          *
+*                                                                         *
+*   You should have received a copy of the GNU General Public License     *
+*   along with this program; if not, write to the                         *
+*   Free Software Foundation, Inc.,                                       *
+*   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
+***************************************************************************/
+
+/**************************************************************************
+*	pgxp_value.h
+*	PGXP - Parallel/Precision Geometry Xform Pipeline
+*
+*	Created on: 07 Jun 2016
+*      Author: iCatButler
+***************************************************************************/
+
+#ifndef _PGXP_VALUE_H_
+#define _PGXP_VALUE_H_
+
+#include "psxcommon.h"
+
+typedef union {
+#if defined(__BIGENDIAN__)
+	struct { u8 h3, h2, h, l; } b;
+	struct { s8 h3, h2, h, l; } sb;
+	struct { u16 h, l; } w;
+	struct { s16 h, l; } sw;
+#else
+	struct { u8 l, h, h2, h3; } b;
+	struct { u16 l, h; } w;
+	struct { s8 l, h, h2, h3; } sb;
+	struct { s16 l, h; } sw;
+#endif
+	u32 d;
+	s32 sd;
+} psx_value;
+
+typedef struct PGXP_value_Tag
+{
+	float			x;
+	float			y;
+	float			z;
+	unsigned int	valid;
+	unsigned int	count;
+	unsigned int	value;
+
+	unsigned short	gFlags;
+	unsigned char	lFlags;
+	unsigned char	hFlags;
+} PGXP_value;
+
+typedef enum
+{
+	INVALID_ADDRESS = (1 << 1),
+} PGXP_value_flags;
+
+typedef enum
+{
+	VALID_HALF = (1 << 0)
+} PGXP_half_flags;
+
+static const PGXP_value PGXP_value_invalid_address = { 0.f, 0.f, 0.f, 0, 0, 0, INVALID_ADDRESS, 0, 0 };
+static const PGXP_value PGXP_value_zero = { 0.f, 0.f, 0.f, 0, 0, 1, 0, 0, 0 };
+
+inline void MakeValid(PGXP_value *pV, u32 psxV)
+{
+	psx_value psx;
+	psx.d = psxV;
+	if (!pV->valid)
+	{
+		pV->x = (float)psx.sw.l;
+		pV->y = (float)psx.sw.h;
+		pV->valid = 1;
+		pV->value = psx.d;
+	}
+}
+
+inline void Validate(PGXP_value *pV, u32 psxV)
+{
+	// assume pV is not NULL
+	pV->valid = (pV->valid) && (pV->value == psxV);
+}
+
+inline void MaskValidate(PGXP_value *pV, u32 psxV, u32 mask)
+{
+	// assume pV is not NULL
+	pV->valid = (pV->valid) && ((pV->value & mask) == (psxV & mask));
+}
+
+typedef union
+{
+	struct
+	{
+		s16 x;
+		s16 y;
+	};
+	struct
+	{
+		u16 ux;
+		u16 uy;
+	};
+	u32 word;
+} low_value;
+
+#endif//_PGX_VALUE_H_