Subversion Repositories orsoc_graphics_accelerator

/*
ORSoC GFX accelerator core
Copyright 2012, ORSoC, Per Lenander, Anton Fosselius.
 
Parameter file
 
 This file is part of orgfx.
 
 orgfx 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 Foundation, either version 3 of the License, or
 (at your option) any later version. 
 
 orgfx 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 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public License
 along with orgfx.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 
  // Declarations of register addresses:
  parameter GFX_CONTROL        = 8'h00;
  parameter GFX_STATUS         = 8'h04;
  parameter GFX_ALPHA          = 8'h08;
  parameter GFX_COLORKEY       = 8'h0c;
 
  parameter GFX_TARGET_BASE    = 8'h10;
  parameter GFX_TARGET_SIZE_X  = 8'h14;
  parameter GFX_TARGET_SIZE_Y  = 8'h18;
 
  parameter GFX_TEX0_BASE      = 8'h1c;
  parameter GFX_TEX0_SIZE_X    = 8'h20;
  parameter GFX_TEX0_SIZE_Y    = 8'h24;
 
  parameter GFX_SRC_PIXEL0_X   = 8'h28;
  parameter GFX_SRC_PIXEL0_Y   = 8'h2c;
  parameter GFX_SRC_PIXEL1_X   = 8'h30;
  parameter GFX_SRC_PIXEL1_Y   = 8'h34;
 
  parameter GFX_DEST_PIXEL_X   = 8'h38;
  parameter GFX_DEST_PIXEL_Y   = 8'h3c;
  parameter GFX_DEST_PIXEL_Z   = 8'h40;
 
  parameter GFX_AA             = 8'h44;
  parameter GFX_AB             = 8'h48;
  parameter GFX_AC             = 8'h4c;
  parameter GFX_TX             = 8'h50;
  parameter GFX_BA             = 8'h54;
  parameter GFX_BB             = 8'h58;
  parameter GFX_BC             = 8'h5c;
  parameter GFX_TY             = 8'h60;
  parameter GFX_CA             = 8'h64;
  parameter GFX_CB             = 8'h68;
  parameter GFX_CC             = 8'h6c;
  parameter GFX_TZ             = 8'h70;
 
  parameter GFX_CLIP_PIXEL0_X  = 8'h74;
  parameter GFX_CLIP_PIXEL0_Y  = 8'h78;
  parameter GFX_CLIP_PIXEL1_X  = 8'h7c;
  parameter GFX_CLIP_PIXEL1_Y  = 8'h80;
 
  parameter GFX_COLOR0         = 8'h84;
  parameter GFX_COLOR1         = 8'h88;
  parameter GFX_COLOR2         = 8'h8c;
 
  parameter GFX_U0             = 8'h90;
  parameter GFX_V0             = 8'h94;
  parameter GFX_U1             = 8'h98;
  parameter GFX_V1             = 8'h9c;
  parameter GFX_U2             = 8'ha0;
  parameter GFX_V2             = 8'ha4;
 
  parameter GFX_ZBUFFER_BASE   = 8'ha8;
 
  // Declare control register bits
  parameter GFX_CTRL_COLOR_DEPTH = 0;
  parameter GFX_CTRL_TEXTURE  = 2;
  parameter GFX_CTRL_BLENDING = 3;
  parameter GFX_CTRL_COLORKEY = 4;
  parameter GFX_CTRL_CLIPPING = 5;
  parameter GFX_CTRL_ZBUFFER  = 6;
 
  parameter GFX_CTRL_RECT     = 8;
  parameter GFX_CTRL_LINE     = 9;
  parameter GFX_CTRL_TRI      = 10;
  parameter GFX_CTRL_CURVE    = 11;
  parameter GFX_CTRL_INTERP   = 12;
  parameter GFX_CTRL_INSIDE   = 13;
 
  parameter GFX_CTRL_ACTIVE_POINT    = 16;
  parameter GFX_CTRL_FORWARD_POINT   = 18;
  parameter GFX_CTRL_TRANSFORM_POINT = 19;
 
  // Declare status register bits
  parameter GFX_STAT_BUSY     = 0;