start moving everything to C

1 files changed, 0 insertions, 1065 deletions

diff --git a/source/tile.cpp b/source/tile.cpp
deleted file mode 100644
index 3dcab74..0000000
--- a/source/tile.cpp
+++ /dev/null
@@ -1,1065 +0,0 @@
-/*******************************************************************************
-  Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
- 
-  (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and
-                            Jerremy Koot (jkoot@snes9x.com)
-
-  (c) Copyright 2001 - 2004 John Weidman (jweidman@slip.net)
-
-  (c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net),
-                            funkyass (funkyass@spam.shaw.ca),
-                            Joel Yliluoma (http://iki.fi/bisqwit/)
-                            Kris Bleakley (codeviolation@hotmail.com),
-                            Matthew Kendora,
-                            Nach (n-a-c-h@users.sourceforge.net),
-                            Peter Bortas (peter@bortas.org) and
-                            zones (kasumitokoduck@yahoo.com)
-
-  C4 x86 assembler and some C emulation code
-  (c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com),
-                            _Demo_ (_demo_@zsnes.com), and Nach
-
-  C4 C++ code
-  (c) Copyright 2003 Brad Jorsch
-
-  DSP-1 emulator code
-  (c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson,
-                            John Weidman, neviksti (neviksti@hotmail.com),
-                            Kris Bleakley, Andreas Naive
-
-  DSP-2 emulator code
-  (c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and
-                     Lord Nightmare (lord_nightmare@users.sourceforge.net
-
-  OBC1 emulator code
-  (c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and
-                            Kris Bleakley
-  Ported from x86 assembler to C by sanmaiwashi
-
-  SPC7110 and RTC C++ emulator code
-  (c) Copyright 2002 Matthew Kendora with research by
-                     zsKnight, John Weidman, and Dark Force
-
-  S-DD1 C emulator code
-  (c) Copyright 2003 Brad Jorsch with research by
-                     Andreas Naive and John Weidman
- 
-  S-RTC C emulator code
-  (c) Copyright 2001 John Weidman
-  
-  ST010 C++ emulator code
-  (c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora
-
-  Super FX x86 assembler emulator code 
-  (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault 
-
-  Super FX C emulator code 
-  (c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman
-
-
-  SH assembler code partly based on x86 assembler code
-  (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se) 
-
- 
-  Specific ports contains the works of other authors. See headers in
-  individual files.
- 
-  Snes9x homepage: http://www.snes9x.com
- 
-  Permission to use, copy, modify and distribute Snes9x in both binary and
-  source form, for non-commercial purposes, is hereby granted without fee,
-  providing that this license information and copyright notice appear with
-  all copies and any derived work.
- 
-  This software is provided 'as-is', without any express or implied
-  warranty. In no event shall the authors be held liable for any damages
-  arising from the use of this software.
- 
-  Snes9x is freeware for PERSONAL USE only. Commercial users should
-  seek permission of the copyright holders first. Commercial use includes
-  charging money for Snes9x or software derived from Snes9x.
- 
-  The copyright holders request that bug fixes and improvements to the code
-  should be forwarded to them so everyone can benefit from the modifications
-  in future versions.
- 
-  Super NES and Super Nintendo Entertainment System are trademarks of
-  Nintendo Co., Limited and its subsidiary companies.
-*******************************************************************************/
-#include "snes9x.h"
-
-#include "memmap.h"
-#include "ppu.h"
-#include "display.h"
-#include "gfx.h"
-#include "tile.h"
-
-extern uint32 HeadMask [4];
-extern uint32 TailMask [5];
-
-static uint8 ConvertTile (uint8 *pCache, uint32 TileAddr)
-{
-    register uint8 *tp = &Memory.VRAM[TileAddr];
-    uint32 *p = (uint32 *) pCache;
-    uint32 non_zero = 0;
-    uint8 line;
-
-    switch (BG.BitShift)
-    {
-    case 8:
-	for (line = 8; line != 0; line--, tp += 2)
-	{
-	    uint32 p1 = 0;
-	    uint32 p2 = 0;
-	    register uint8 pix;
-
-	    if ((pix = *(tp + 0)))
-	    {
-		p1 |= odd_high[0][pix >> 4];
-		p2 |= odd_low[0][pix & 0xf];
-	    }
-	    if ((pix = *(tp + 1)))
-	    {
-		p1 |= even_high[0][pix >> 4];
-		p2 |= even_low[0][pix & 0xf];
-	    }
-	    if ((pix = *(tp + 16)))
-	    {
-		p1 |= odd_high[1][pix >> 4];
-		p2 |= odd_low[1][pix & 0xf];
-	    }
-	    if ((pix = *(tp + 17)))
-	    {
-		p1 |= even_high[1][pix >> 4];
-		p2 |= even_low[1][pix & 0xf];
-	    }
-	    if ((pix = *(tp + 32)))
-	    {
-		p1 |= odd_high[2][pix >> 4];
-		p2 |= odd_low[2][pix & 0xf];
-	    }
-	    if ((pix = *(tp + 33)))
-	    {
-		p1 |= even_high[2][pix >> 4];
-		p2 |= even_low[2][pix & 0xf];
-	    }
-	    if ((pix = *(tp + 48)))
-	    {
-		p1 |= odd_high[3][pix >> 4];
-		p2 |= odd_low[3][pix & 0xf];
-	    }
-	    if ((pix = *(tp + 49)))
-	    {
-		p1 |= even_high[3][pix >> 4];
-		p2 |= even_low[3][pix & 0xf];
-	    }
-	    *p++ = p1;
-	    *p++ = p2;
-	    non_zero |= p1 | p2;
-	}
-	break;
-
-    case 4:
-	for (line = 8; line != 0; line--, tp += 2)
-	{
-	    uint32 p1 = 0;
-	    uint32 p2 = 0;
-	    register uint8 pix;
-	    if ((pix = *(tp + 0)))
-	    {
-		p1 |= odd_high[0][pix >> 4];
-		p2 |= odd_low[0][pix & 0xf];
-	    }
-	    if ((pix = *(tp + 1)))
-	    {
-		p1 |= even_high[0][pix >> 4];
-		p2 |= even_low[0][pix & 0xf];
-	    }
-	    if ((pix = *(tp + 16)))
-	    {
-		p1 |= odd_high[1][pix >> 4];
-		p2 |= odd_low[1][pix & 0xf];
-	    }
-	    if ((pix = *(tp + 17)))
-	    {
-		p1 |= even_high[1][pix >> 4];
-		p2 |= even_low[1][pix & 0xf];
-	    }
-	    *p++ = p1;
-	    *p++ = p2;
-	    non_zero |= p1 | p2;
-	}
-	break;
-
-    case 2:
-	for (line = 8; line != 0; line--, tp += 2)
-	{
-	    uint32 p1 = 0;
-	    uint32 p2 = 0;
-	    register uint8 pix;
-	    if ((pix = *(tp + 0)))
-	    {
-		p1 |= odd_high[0][pix >> 4];
-		p2 |= odd_low[0][pix & 0xf];
-	    }
-	    if ((pix = *(tp + 1)))
-	    {
-		p1 |= even_high[0][pix >> 4];
-		p2 |= even_low[0][pix & 0xf];
-	    }
-	    *p++ = p1;
-	    *p++ = p2;
-	    non_zero |= p1 | p2;
-	}
-	break;
-    }
-    return (non_zero ? TRUE : BLANK_TILE);
-}
-#define PLOT_PIXEL(screen, pixel) (pixel)
-
-
-static void WRITE_4PIXELS16 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-   uint16 *Screen = (uint16 *) GFX.S + Offset;
-   uint8  *Depth = GFX.DB + Offset;
-
-	for (uint8 N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
-		{
-			Screen [N] = ScreenColors [Pixel];
-			Depth [N] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16_FLIPPED (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.DB + Offset;
-
-	for (uint8 N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
-		{
-			Screen [N] = ScreenColors [Pixel];
-			Depth [N] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16_HALFWIDTH (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.DB + Offset;
-
-	for (uint8 N = 0; N < 4; N += 2)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
-		{
-			Screen [N >> 1] = ScreenColors [Pixel];
-			Depth [N >> 1] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16_FLIPPED_HALFWIDTH (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.DB + Offset;
-
-	for (uint8 N = 0; N < 4; N += 2)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[2 - N]))
-		{
-			Screen [N >> 1] = ScreenColors [Pixel];
-			Depth [N >> 1] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16x2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.DB + Offset;
-
-	for (uint8 N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
-		{
-			Screen [N * 2] = Screen [N * 2 + 1] = ScreenColors [Pixel];
-			Depth [N * 2] = Depth [N * 2 + 1] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16_FLIPPEDx2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.DB + Offset;
-
-	for (uint8 N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
-		{
-			Screen [N * 2] = Screen [N * 2 + 1] = ScreenColors [Pixel];
-			Depth [N * 2] = Depth [N * 2 + 1] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16x2x2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.DB + Offset;
-
-	for (uint8 N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
-		{
-			Screen [N * 2] = Screen [N * 2 + 1] = Screen [(GFX.RealPitch >> 1) + N * 2] = Screen [(GFX.RealPitch >> 1) + N * 2 + 1] = ScreenColors [Pixel];
-			Depth [N * 2] = Depth [N * 2 + 1] = Depth [(GFX.RealPitch >> 1) + N * 2] = Depth [(GFX.RealPitch >> 1) + N * 2 + 1] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16_FLIPPEDx2x2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.DB + Offset;
-
-	for (uint8 N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
-		{
-			Screen [N * 2] = Screen [N * 2 + 1] = Screen [(GFX.RealPitch >> 1) + N * 2] = Screen [(GFX.RealPitch >> 1) + N * 2 + 1] = ScreenColors [Pixel];
-			Depth [N * 2] = Depth [N * 2 + 1] = Depth [(GFX.RealPitch >> 1) + N * 2] = Depth [(GFX.RealPitch >> 1) + N * 2 + 1] = GFX.Z2;
-		}
-	}
-}
-
-void DrawTile16 (uint32 Tile, int32 Offset, uint32 StartLine,
-	         uint32 LineCount)
-{
-	TILE_PREAMBLE
-	register uint8 *bp;
-
-	RENDER_TILE(WRITE_4PIXELS16, WRITE_4PIXELS16_FLIPPED, 4)
-}
-
-void DrawClippedTile16 (uint32 Tile, int32 Offset,
-			uint32 StartPixel, uint32 Width,
-			uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    TILE_CLIP_PREAMBLE
-    RENDER_CLIPPED_TILE(WRITE_4PIXELS16, WRITE_4PIXELS16_FLIPPED, 4)
-}
-
-void DrawTile16HalfWidth (uint32 Tile, int32 Offset, uint32 StartLine,
-		   uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    RENDER_TILE(WRITE_4PIXELS16_HALFWIDTH, WRITE_4PIXELS16_FLIPPED_HALFWIDTH, 2)
-}
-
-void DrawClippedTile16HalfWidth (uint32 Tile, int32 Offset,
-			uint32 StartPixel, uint32 Width,
-			uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    TILE_CLIP_PREAMBLE
-    RENDER_CLIPPED_TILE(WRITE_4PIXELS16_HALFWIDTH, WRITE_4PIXELS16_FLIPPED_HALFWIDTH, 2)
-}
-
-void DrawTile16x2 (uint32 Tile, int32 Offset, uint32 StartLine,
-		   uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    RENDER_TILE(WRITE_4PIXELS16x2, WRITE_4PIXELS16_FLIPPEDx2, 8)
-}
-
-void DrawClippedTile16x2 (uint32 Tile, int32 Offset,
-			  uint32 StartPixel, uint32 Width,
-			  uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    TILE_CLIP_PREAMBLE
-    RENDER_CLIPPED_TILE(WRITE_4PIXELS16x2, WRITE_4PIXELS16_FLIPPEDx2, 8)
-}
-
-void DrawTile16x2x2 (uint32 Tile, int32 Offset, uint32 StartLine,
-		     uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    RENDER_TILE(WRITE_4PIXELS16x2x2, WRITE_4PIXELS16_FLIPPEDx2x2, 8)
-}
-
-void DrawClippedTile16x2x2 (uint32 Tile, int32 Offset,
-			    uint32 StartPixel, uint32 Width,
-			    uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    TILE_CLIP_PREAMBLE
-    RENDER_CLIPPED_TILE(WRITE_4PIXELS16x2x2, WRITE_4PIXELS16_FLIPPEDx2x2, 8)
-}
-
-void DrawLargePixel16 (uint32 Tile, int32 Offset,
-		       uint32 StartPixel, uint32 Pixels,
-		       uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-
-    register uint16 *sp = (uint16 *) GFX.S + Offset;
-    uint8  *Depth = GFX.DB + Offset;
-    uint16 pixel;
-
-    RENDER_TILE_LARGE (ScreenColors [pixel], PLOT_PIXEL)
-}
-
-void DrawLargePixel16HalfWidth (uint32 Tile, int32 Offset,
-		       uint32 StartPixel, uint32 Pixels,
-		       uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-
-    register uint16 *sp = (uint16 *) GFX.S + Offset;
-    uint8  *Depth = GFX.DB + Offset;
-    uint16 pixel;
-
-    RENDER_TILE_LARGE_HALFWIDTH (ScreenColors [pixel], PLOT_PIXEL)
-}
-
-static void WRITE_4PIXELS16_ADD (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.ZBuffer + Offset;
-	uint8  *SubDepth = GFX.SubZBuffer + Offset;
-
-	for (uint8 N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
-      {
-			switch (SubDepth [N])
-			{
-			case 0:
-				Screen [N] = ScreenColors [Pixel];
-				break;
-			case 1:
-				Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
-				break;
-			default:
-				Screen [N] = COLOR_ADD (ScreenColors [Pixel], Screen [GFX.Delta + N]);
-				break;
-			}
-			Depth [N] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16_FLIPPED_ADD (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.ZBuffer + Offset;
-	uint8  *SubDepth = GFX.SubZBuffer + Offset;
-
-	for (uint8 N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
-		{
-			switch (SubDepth [N])
-			{
-			case 0:
-				Screen [N] = ScreenColors [Pixel];
-				break;
-			case 1:
-				Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
-				break;
-			default:
-				Screen [N] = COLOR_ADD (ScreenColors [Pixel], Screen [GFX.Delta + N]);
-				break;
-			}
-			Depth [N] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16_ADD1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.ZBuffer + Offset;
-	uint8  *SubDepth = GFX.SubZBuffer + Offset;
-
-	for (uint8 N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
-		{
-			switch (SubDepth [N])
-			{
-			case 0:
-				Screen [N] = ScreenColors [Pixel];
-				break;
-			case 1:
-				Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
-				break;
-			default:
-				Screen [N] = (uint16) (COLOR_ADD1_2 (ScreenColors [Pixel], Screen [GFX.Delta + N]));
-				break;
-			}
-			Depth [N] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16_FLIPPED_ADD1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.ZBuffer + Offset;
-	uint8  *SubDepth = GFX.SubZBuffer + Offset;
-
-	for (uint8 N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
-		{
-			switch (SubDepth [N])
-			{
-			case 0:
-				Screen [N] = ScreenColors [Pixel];
-				break;
-			case 1:
-				Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
-				break;
-			default:
-				Screen [N] = (uint16) (COLOR_ADD1_2 (ScreenColors [Pixel], Screen [GFX.Delta + N]));
-				break;
-			}
-			Depth [N] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16_SUB (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.ZBuffer + Offset;
-	uint8  *SubDepth = GFX.SubZBuffer + Offset;
-
-	for (uint8 N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
-		{
-			switch (SubDepth [N])
-			{
-			case 0:
-				Screen [N] = ScreenColors [Pixel];
-				break;
-			case 1:
-				Screen [N] = (uint16) COLOR_SUB (ScreenColors [Pixel], GFX.FixedColour);
-				break;
-			default:
-				Screen [N] = (uint16) COLOR_SUB (ScreenColors [Pixel], Screen [GFX.Delta + N]);
-				break;
-			}
-			Depth [N] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16_FLIPPED_SUB (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.ZBuffer + Offset;
-	uint8  *SubDepth = GFX.SubZBuffer + Offset;
-
-	for (uint8 N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
-		{
-			switch (SubDepth [N])
-			{
-			case 0:
-				Screen [N] = ScreenColors [Pixel];
-				break;
-			case 1:
-				Screen [N] = (uint16) COLOR_SUB (ScreenColors [Pixel], GFX.FixedColour);
-				break;
-			default:
-				Screen [N] = (uint16) COLOR_SUB (ScreenColors [Pixel], Screen [GFX.Delta + N]);
-				break;
-			}
-			Depth [N] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16_SUB1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.ZBuffer + Offset;
-	uint8  *SubDepth = GFX.SubZBuffer + Offset;
-
-	for (uint8 N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
-		{
-			switch (SubDepth [N])
-			{
-			case 0:
-				Screen [N] = ScreenColors [Pixel];
-				break;
-			case 1:
-				Screen [N] = (uint16) COLOR_SUB (ScreenColors [Pixel], GFX.FixedColour);
-				break;
-			default:
-				Screen [N] = (uint16) COLOR_SUB1_2 (ScreenColors [Pixel], Screen [GFX.Delta + N]);
-				break;
-			}
-			Depth [N] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16_FLIPPED_SUB1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.ZBuffer + Offset;
-	uint8  *SubDepth = GFX.SubZBuffer + Offset;
-
-	for (uint8 N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
-		{
-			switch (SubDepth [N])
-			{
-			case 0:
-				Screen [N] = ScreenColors [Pixel];
-				break;
-			case 1:
-				Screen [N] = (uint16) COLOR_SUB (ScreenColors [Pixel], GFX.FixedColour);
-				break;
-			default:
-				Screen [N] = (uint16) COLOR_SUB1_2 (ScreenColors [Pixel], Screen [GFX.Delta + N]);
-				break;
-			}
-			Depth [N] = GFX.Z2;
-		}
-	}
-}
-
-
-void DrawTile16Add (uint32 Tile, int32 Offset, uint32 StartLine,
-		    uint32 LineCount)
-{
-	TILE_PREAMBLE
-	register uint8 *bp;
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.ZBuffer + Offset;
-	uint8  *SubDepth = GFX.SubZBuffer + Offset;
-
-    switch (Tile & (V_FLIP | H_FLIP))
-    {
-    case 0:
-	bp = pCache + StartLine;
-	for (l = LineCount; l != 0; l--, bp += 8, Screen += GFX.PPL, Depth += GFX.PPL, SubDepth += GFX.PPL)
-	{
-		for (uint8 N = 0; N < 8; N++)
-		{
-			if (GFX.Z1 > Depth [N] && (Pixel = bp[N]))
-			{
-				switch (SubDepth [N])
-				{
-				case 0:
-					Screen [N] = ScreenColors [Pixel];
-					break;
-				case 1:
-					Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
-					break;
-				default:
-					Screen [N] = COLOR_ADD (ScreenColors [Pixel], Screen [GFX.Delta + N]);
-					break;
-				}
-				Depth [N] = GFX.Z2;
-			}
-		}
-	}
-        break;
-    case H_FLIP:
-	bp = pCache + StartLine;
-	for (l = LineCount; l != 0; l--, bp += 8, Screen += GFX.PPL, Depth += GFX.PPL, SubDepth += GFX.PPL)
-	{
-		for (uint8 N = 0; N < 8; N++)
-		{
-			if (GFX.Z1 > Depth [N] && (Pixel = bp[7 - N]))
-			{
-				switch (SubDepth [N])
-				{
-				case 0:
-					Screen [N] = ScreenColors [Pixel];
-					break;
-				case 1:
-					Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
-					break;
-				default:
-					Screen [N] = COLOR_ADD (ScreenColors [Pixel], Screen [GFX.Delta + N]);
-					break;
-				}
-				Depth [N] = GFX.Z2;
-			}
-		}
-	}
-        break;
-    case H_FLIP | V_FLIP:
-	bp = pCache + 56 - StartLine;
-	for (l = LineCount; l != 0; l--, bp -= 8, Screen += GFX.PPL, Depth += GFX.PPL, SubDepth += GFX.PPL)
-	{
-		for (uint8 N = 0; N < 8; N++)
-		{
-			if (GFX.Z1 > Depth [N] && (Pixel = bp[7 - N]))
-			{
-				switch (SubDepth [N])
-				{
-				case 0:
-					Screen [N] = ScreenColors [Pixel];
-					break;
-				case 1:
-					Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
-					break;
-				default:
-					Screen [N] = COLOR_ADD (ScreenColors [Pixel], Screen [GFX.Delta + N]);
-					break;
-				}
-				Depth [N] = GFX.Z2;
-			}
-		}
-	}
-        break;
-    case V_FLIP:
-	bp = pCache + 56 - StartLine;
-	for (l = LineCount; l != 0; l--, bp -= 8, Screen += GFX.PPL, Depth += GFX.PPL, SubDepth += GFX.PPL)
-	{
-		for (uint8 N = 0; N < 8; N++)
-		{
-			if (GFX.Z1 > Depth [N] && (Pixel = bp[N]))
-			{
-				switch (SubDepth [N])
-				{
-				case 0:
-					Screen [N] = ScreenColors [Pixel];
-					break;
-				case 1:
-					Screen [N] = COLOR_ADD (ScreenColors [Pixel], GFX.FixedColour);
-					break;
-				default:
-					Screen [N] = COLOR_ADD (ScreenColors [Pixel], Screen [GFX.Delta + N]);
-					break;
-				}
-				Depth [N] = GFX.Z2;
-			}
-		}
-	}
-        break;
-    default:
-        break;
-    }
-}
-
-void DrawClippedTile16Add (uint32 Tile, int32 Offset,
-			   uint32 StartPixel, uint32 Width,
-			   uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    TILE_CLIP_PREAMBLE
-    RENDER_CLIPPED_TILE(WRITE_4PIXELS16_ADD, WRITE_4PIXELS16_FLIPPED_ADD, 4)
-}
-
-void DrawTile16Add1_2 (uint32 Tile, int32 Offset, uint32 StartLine,
-		       uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    RENDER_TILE(WRITE_4PIXELS16_ADD1_2, WRITE_4PIXELS16_FLIPPED_ADD1_2, 4)
-}
-
-void DrawClippedTile16Add1_2 (uint32 Tile, int32 Offset,
-			      uint32 StartPixel, uint32 Width,
-			      uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    TILE_CLIP_PREAMBLE
-    RENDER_CLIPPED_TILE(WRITE_4PIXELS16_ADD1_2, WRITE_4PIXELS16_FLIPPED_ADD1_2, 4)
-}
-
-void DrawTile16Sub (uint32 Tile, int32 Offset, uint32 StartLine,
-		    uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    RENDER_TILE(WRITE_4PIXELS16_SUB, WRITE_4PIXELS16_FLIPPED_SUB, 4)
-}
-
-void DrawClippedTile16Sub (uint32 Tile, int32 Offset,
-			   uint32 StartPixel, uint32 Width,
-			   uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    TILE_CLIP_PREAMBLE
-    RENDER_CLIPPED_TILE(WRITE_4PIXELS16_SUB, WRITE_4PIXELS16_FLIPPED_SUB, 4)
-}
-
-void DrawTile16Sub1_2 (uint32 Tile, int32 Offset, uint32 StartLine,
-		       uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    RENDER_TILE(WRITE_4PIXELS16_SUB1_2, WRITE_4PIXELS16_FLIPPED_SUB1_2, 4)
-}
-
-void DrawClippedTile16Sub1_2 (uint32 Tile, int32 Offset,
-			      uint32 StartPixel, uint32 Width,
-			      uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    TILE_CLIP_PREAMBLE
-    RENDER_CLIPPED_TILE(WRITE_4PIXELS16_SUB1_2, WRITE_4PIXELS16_FLIPPED_SUB1_2, 4)
-}
-
-static void WRITE_4PIXELS16_ADDF1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.ZBuffer + Offset;
-	uint8  *SubDepth = GFX.SubZBuffer + Offset;
-
-	for (uint N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
-		{
-			if (SubDepth [N] == 1)
-				Screen [N] = (uint16) (COLOR_ADD1_2 (ScreenColors [Pixel], GFX.FixedColour));
-			else
-				Screen [N] = ScreenColors [Pixel];
-			Depth [N] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16_FLIPPED_ADDF1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.ZBuffer + Offset;
-	uint8  *SubDepth = GFX.SubZBuffer + Offset;
-
-	for (uint N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
-		{
-			if (SubDepth [N] == 1)
-				Screen [N] = (uint16) (COLOR_ADD1_2 (ScreenColors [Pixel], GFX.FixedColour));
-			else
-				Screen [N] = ScreenColors [Pixel];
-			Depth [N] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16_SUBF1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.ZBuffer + Offset;
-	uint8  *SubDepth = GFX.SubZBuffer + Offset;
-
-	for (uint N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[N]))
-		{
-			if (SubDepth [N] == 1)
-				Screen [N] = (uint16) COLOR_SUB1_2 (ScreenColors [Pixel], GFX.FixedColour);
-			else
-				Screen [N] = ScreenColors [Pixel];
-			Depth [N] = GFX.Z2;
-		}
-	}
-}
-
-static void WRITE_4PIXELS16_FLIPPED_SUBF1_2 (int32 Offset, uint8 *Pixels, uint16 *ScreenColors)
-{
-	uint8  Pixel;
-	uint16 *Screen = (uint16 *) GFX.S + Offset;
-	uint8  *Depth = GFX.ZBuffer + Offset;
-	uint8  *SubDepth = GFX.SubZBuffer + Offset;
-
-	for (uint N = 0; N < 4; N++)
-	{
-		if (GFX.Z1 > Depth [N] && (Pixel = Pixels[3 - N]))
-		{
-			if (SubDepth [N] == 1)
-				Screen [N] = (uint16) COLOR_SUB1_2 (ScreenColors [Pixel], GFX.FixedColour);
-			else
-				Screen [N] = ScreenColors [Pixel];
-			Depth [N] = GFX.Z2;
-		}
-	}
-}
-
-void DrawTile16FixedAdd1_2 (uint32 Tile, int32 Offset, uint32 StartLine,
-			    uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    RENDER_TILE(WRITE_4PIXELS16_ADDF1_2, WRITE_4PIXELS16_FLIPPED_ADDF1_2, 4)
-}
-
-void DrawClippedTile16FixedAdd1_2 (uint32 Tile, int32 Offset,
-				   uint32 StartPixel, uint32 Width,
-				   uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    TILE_CLIP_PREAMBLE
-    RENDER_CLIPPED_TILE(WRITE_4PIXELS16_ADDF1_2, 
-			WRITE_4PIXELS16_FLIPPED_ADDF1_2, 4)
-}
-
-void DrawTile16FixedSub1_2 (uint32 Tile, int32 Offset, uint32 StartLine,
-			    uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    RENDER_TILE(WRITE_4PIXELS16_SUBF1_2, WRITE_4PIXELS16_FLIPPED_SUBF1_2, 4)
-}
-
-void DrawClippedTile16FixedSub1_2 (uint32 Tile, int32 Offset,
-				   uint32 StartPixel, uint32 Width,
-				   uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-    register uint8 *bp;
-
-    TILE_CLIP_PREAMBLE
-    RENDER_CLIPPED_TILE(WRITE_4PIXELS16_SUBF1_2, 
-			WRITE_4PIXELS16_FLIPPED_SUBF1_2, 4)
-}
-
-void DrawLargePixel16Add (uint32 Tile, int32 Offset,
-			  uint32 StartPixel, uint32 Pixels,
-			  uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-
-    register uint16 *sp = (uint16 *) GFX.S + Offset;
-    uint8  *Depth = GFX.ZBuffer + Offset;
-    uint16 pixel;
-
-#define LARGE_ADD_PIXEL(s, p) \
-(Depth [z + GFX.DepthDelta] ? (Depth [z + GFX.DepthDelta] != 1 ? \
-			       COLOR_ADD (p, *(s + GFX.Delta))    : \
-			       COLOR_ADD (p, GFX.FixedColour)) \
-			    : p)
-			      
-    RENDER_TILE_LARGE (ScreenColors [pixel], LARGE_ADD_PIXEL)
-}
-
-void DrawLargePixel16Add1_2 (uint32 Tile, int32 Offset,
-			     uint32 StartPixel, uint32 Pixels,
-			     uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-
-    register uint16 *sp = (uint16 *) GFX.S + Offset;
-    uint8  *Depth = GFX.ZBuffer + Offset;
-    uint16 pixel;
-
-#define LARGE_ADD_PIXEL1_2(s, p) \
-((uint16) (Depth [z + GFX.DepthDelta] ? (Depth [z + GFX.DepthDelta] != 1 ? \
-			       COLOR_ADD1_2 (p, *(s + GFX.Delta))    : \
-			       COLOR_ADD (p, GFX.FixedColour)) \
-			    : p))
-			      
-    RENDER_TILE_LARGE (ScreenColors [pixel], LARGE_ADD_PIXEL1_2)
-}
-
-void DrawLargePixel16Sub (uint32 Tile, int32 Offset,
-			  uint32 StartPixel, uint32 Pixels,
-			  uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-
-    register uint16 *sp = (uint16 *) GFX.S + Offset;
-    uint8  *Depth = GFX.ZBuffer + Offset;
-    uint16 pixel;
-
-#define LARGE_SUB_PIXEL(s, p) \
-(Depth [z + GFX.DepthDelta] ? (Depth [z + GFX.DepthDelta] != 1 ? \
-			       COLOR_SUB (p, *(s + GFX.Delta))    : \
-			       COLOR_SUB (p, GFX.FixedColour)) \
-			    : p)
-			      
-    RENDER_TILE_LARGE (ScreenColors [pixel], LARGE_SUB_PIXEL)
-}
-
-void DrawLargePixel16Sub1_2 (uint32 Tile, int32 Offset,
-			     uint32 StartPixel, uint32 Pixels,
-			     uint32 StartLine, uint32 LineCount)
-{
-    TILE_PREAMBLE
-
-    register uint16 *sp = (uint16 *) GFX.S + Offset;
-    uint8  *Depth = GFX.ZBuffer + Offset;
-    uint16 pixel;
-
-#define LARGE_SUB_PIXEL1_2(s, p) \
-(Depth [z + GFX.DepthDelta] ? (Depth [z + GFX.DepthDelta] != 1 ? \
-			       COLOR_SUB1_2 (p, *(s + GFX.Delta))    : \
-			       COLOR_SUB (p, GFX.FixedColour)) \
-			    : p)
-			      
-    RENDER_TILE_LARGE (ScreenColors [pixel], LARGE_SUB_PIXEL1_2)
-}
-