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robfinch |
// ============================================================================
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// 2006-2011 Robert Finch
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// robfinch@<remove>sympatico.ca
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//
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// rtfColorROM.v
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// Color lookup ROM for TextController.
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// Converts a 5-bit color code to a 24 bit RGB value.
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//
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//
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// This source file is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This source file is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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// ============================================================================
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// TC64 color codes
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`define TC64_BLACK 5'd0
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`define TC64_WHITE 5'd1
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`define TC64_RED 5'd2
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`define TC64_CYAN 5'd3
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`define TC64_PURPLE 5'd4
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`define TC64_GREEN 5'd5
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`define TC64_BLUE 5'd6
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`define TC64_YELLOW 5'd7
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`define TC64_ORANGE 5'd8
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`define TC64_BROWN 5'd9
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`define TC64_PINK 5'd10
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`define TC64_DARK_GREY 5'd11
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`define TC64_MEDIUM_GREY 5'd12
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`define TC64_LIGHT_GREEN 5'd13
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`define TC64_LIGHT_BLUE 5'd14
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`define TC64_LIGHT_GREY 5'd15
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`define TC64_BLACKa 5'd16
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`define TC64_WHITEa 5'd17
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`define TC64_REDa 5'd18
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`define TC64_CYANa 5'd19
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`define TC64_PURPLEa 5'd20
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`define TC64_GREENa 5'd21
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`define TC64_BLUEa 5'd22
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`define TC64_YELLOWa 5'd23
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`define TC64_ORANGEa 5'd24
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`define TC64_BROWNa 5'd25
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`define TC64_PINKa 5'd26
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`define TC64_DARK_GREYa 5'd27
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`define TC64_GREY3 5'd28
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`define TC64_LIGHT_GREENa 5'd29
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`define TC64_LIGHT_BLUEa 5'd30
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`define TC64_GREY5 5'd31
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module rtfColorROM(clk, ce, code, color);
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input clk;
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input ce;
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input [4:0] code;
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output [23:0] color;
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reg [23:0] color;
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always @(posedge clk)
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if (ce) begin
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case (code)
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`TC64_BLACK: color = 24'h10_10_10;
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`TC64_WHITE: color = 24'hFF_FF_FF;
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`TC64_RED: color = 24'hE0_40_40;
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`TC64_CYAN: color = 24'h60_FF_FF;
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`TC64_PURPLE: color = 24'hE0_60_E0;
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`TC64_GREEN: color = 24'h40_E0_40;
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`TC64_BLUE: color = 24'h40_40_E0;
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`TC64_YELLOW: color = 24'hFF_FF_40;
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`TC64_ORANGE: color = 24'hE0_A0_40;
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`TC64_BROWN: color = 24'h9C_74_48;
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`TC64_PINK: color = 24'hFF_A0_A0;
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`TC64_DARK_GREY: color = 24'h54_54_54;
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`TC64_MEDIUM_GREY: color = 24'h88_88_88;
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`TC64_LIGHT_GREEN: color = 24'hA0_FF_A0;
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`TC64_LIGHT_BLUE: color = 24'hA0_A0_FF;
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`TC64_LIGHT_GREY: color = 24'hC0_C0_C0;
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`TC64_BLACKa: color = 24'h10_10_10;
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`TC64_WHITEa: color = 24'hFF_FF_FF;
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`TC64_REDa: color = 24'hE0_40_40;
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`TC64_CYANa: color = 24'h60_FF_FF;
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`TC64_PURPLEa: color = 24'hE0_60_E0;
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`TC64_GREENa: color = 24'h40_E0_40;
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`TC64_BLUEa: color = 24'h40_40_E0;
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`TC64_YELLOWa: color = 24'hFF_FF_40;
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`TC64_ORANGEa: color = 24'hE0_A0_40;
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`TC64_BROWNa: color = 24'h9C_74_48;
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`TC64_PINKa: color = 24'hFF_A0_A0;
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`TC64_DARK_GREYa: color = 24'h54_54_54;
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`TC64_GREY3: color = 24'h30_30_30;
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`TC64_LIGHT_GREENa: color = 24'hA0_FF_A0;
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`TC64_LIGHT_BLUEa: color = 24'hA0_A0_FF;
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`TC64_GREY5: color = 24'h50_50_50;
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endcase
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end
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endmodule
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