impact 11 renamed the intel flash...
[fpga-games] / galaxian / src / mc_vedio_mix.v
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MG
1//===============================================================================\r
2// FPGA MOONCRESTA VIDO-MIX\r
3//\r
4// Version : 1.00\r
5//\r
6// Copyright(c) 2004 Katsumi Degawa , All rights reserved\r
7//\r
8// Important !\r
9//\r
10// This program is freeware for non-commercial use. \r
11// An author does no guarantee about this program.\r
12// You can use this under your own risk.\r
13//\r
14//================================================================================\r
15\r
16\r
17module mc_vedio_mix(\r
18\r
19I_VID_R,\r
20I_VID_G,\r
21I_VID_B,\r
22I_STR_R,\r
23I_STR_G,\r
24I_STR_B,\r
25\r
26I_C_BLnXX,\r
27I_C_BLX,\r
28I_MISSILEn,\r
29I_SHELLn,\r
30\r
31O_R,\r
32O_G,\r
33O_B\r
34\r
35);\r
36\r
37input [2:0]I_VID_R;\r
38input [2:0]I_VID_G;\r
39input [1:0]I_VID_B;\r
40input [2:0]I_STR_R;\r
41input [2:0]I_STR_G;\r
42input [1:0]I_STR_B;\r
43\r
44input I_C_BLnXX;\r
45input I_C_BLX;\r
46input I_MISSILEn;\r
47input I_SHELLn;\r
48\r
49output [2:0]O_R;\r
50output [2:0]O_G;\r
51output [1:0]O_B;\r
52\r
53// MISSILE => Yellow ;\r
54// SHELL => White ;\r
55wire W_MS_D = ~(I_MISSILEn & I_SHELLn);\r
56wire W_MS_R = ~I_C_BLX & W_MS_D;\r
57wire W_MS_G = ~I_C_BLX & W_MS_D;\r
58wire W_MS_B = ~I_C_BLX & W_MS_D & ~I_SHELLn ;\r
59\r
60assign O_R = I_C_BLnXX ? I_VID_R | I_STR_R | {1'b0,W_MS_R,W_MS_R}: 3'b000 ;\r
61assign O_G = I_C_BLnXX ? I_VID_G | I_STR_G | {1'b0,W_MS_G,W_MS_G}: 3'b000 ;\r
62assign O_B = I_C_BLnXX ? I_VID_B | I_STR_B | { W_MS_B,W_MS_B}: 2'b00 ;\r
63\r
64endmodule
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