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/*******************************************************************************
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.
*******************************************************************************/
#ifndef _DSP4_H_
#define _DSP4_H_
// debug
int block; // current block number
extern int c;
// op control
int8 DSP4_Logic; // controls op flow
// projection format
const int16 PLANE_START = 0x7fff; // starting distance
int16 view_plane; // viewer location
int16 far_plane; // next milestone into screen
int16 segments; // # raster segments to draw
int16 raster; // current raster line
int16 project_x; // current x-position
int16 project_y; // current y-position
int16 project_centerx; // x-target of projection
int16 project_centery; // y-target of projection
int16 project_x1; // current x-distance
int16 project_x1low; // lower 16-bits
int16 project_y1; // current y-distance
int16 project_y1low; // lower 16-bits
int16 project_x2; // next projected x-distance
int16 project_y2; // next projected y-distance
int16 project_pitchx; // delta center
int16 project_pitchxlow; // lower 16-bits
int16 project_pitchy; // delta center
int16 project_pitchylow; // lower 16-bits
int16 project_focalx; // x-point of projection at viewer plane
int16 project_focaly; // y-point of projection at viewer plane
int16 project_ptr; // data structure pointer
// render window
int16 center_x; // x-center of viewport
int16 center_y; // y-center of viewport
int16 viewport_left; // x-left of viewport
int16 viewport_right; // x-right of viewport
int16 viewport_top; // y-top of viewport
int16 viewport_bottom; // y-bottom of viewport
// sprite structure
int16 sprite_x; // projected x-pos of sprite
int16 sprite_y; // projected y-pos of sprite
int16 sprite_offset; // data pointer offset
int8 sprite_type; // vehicle, terrain
bool8 sprite_size; // sprite size: 8x8 or 16x16
// path strips
int16 path_clipRight[4]; // value to clip to for x>b
int16 path_clipLeft[4]; // value to clip to for x<a
int16 path_pos[4]; // x-positions of lanes
int16 path_ptr[4]; // data structure pointers
int16 path_raster[4]; // current raster
int16 path_top[4]; // viewport_top
int16 path_y[2]; // current y-position
int16 path_x[2]; // current focals
int16 path_plane[2]; // previous plane
// op09 window sorting
int16 multi_index1; // index counter
int16 multi_index2; // index counter
bool8 op09_mode; // window mode
// multi-op storage
int16 multi_focaly[64]; // focal_y values
int16 multi_farplane[4]; // farthest drawn distance
int16 multi_raster[4]; // line where track stops
// OAM
int8 op06_OAM[32]; // OAM (size,MSB) data
int8 op06_index; // index into OAM table
int8 op06_offset; // offset into OAM table
#endif
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