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Update sys.

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misteraddons
2023-12-03 22:21:17 -07:00
committed by GitHub
parent 8dee63bb23
commit de3aec5b50
2 changed files with 25 additions and 21 deletions
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10
Readme.md
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@@ -1,13 +1,17 @@
# Startup core for MiSTer
* **ESC** - switch to options
* **F1** - switch the background
* **ESC** - Back/Options
* **Enter** - OK
* **F1** - Cycle Background/Wallpaper
* **F9** - Go to Linux terminal (F12 - back)
* **F11** - Bluetooth Pairing Script
* **F12** - Recent Cores
## Notes:
* Core supports sub-folders started with _ character.
* Regardless the place of RBF file, boot rom/vhd should be placed into either root of SD card or core's dedicated folder (should be created in root of SD card).
* Joystick (including emulation by keyboard) buttons defined in this core is default map for all cores unless defined in particalar core.
## Artwork
## Wallpaper
* Place menu.png or menu.jpg to the root of SD card to have it as background on HDMI (you can use vga_scaler=1 if you want it on VGA).
* Create "wallpapers" folder and place multiple .jpg or .png to it. Use **F1** to cycle between standard MiSTer backgrounds and wallpapers in folder.

36
sys/vga_out.sv
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@@ -16,14 +16,14 @@ module vga_out
output reg csync_o
);
wire [5:0] red = din[23:18];
wire [5:0] green = din[15:10];
wire [5:0] blue = din[7:2];
wire [7:0] red = din[23:16];
wire [7:0] green = din[15:8];
wire [7:0] blue = din[7:0];
// http://marsee101.blog19.fc2.com/blog-entry-2311.html
// Y = 16 + 0.257*R + 0.504*G + 0.098*B (Y = 0.299*R + 0.587*G + 0.114*B)
// Pb = 128 - 0.148*R - 0.291*G + 0.439*B (Pb = -0.169*R - 0.331*G + 0.500*B)
// Pr = 128 + 0.439*R - 0.368*G - 0.071*B (Pr = 0.500*R - 0.419*G - 0.081*B)
// Y = 0.301*R + 0.586*G + 0.113*B (Y = 0.299*R + 0.587*G + 0.114*B)
// Pb = 128 - 0.168*R - 0.332*G + 0.500*B (Pb = -0.169*R - 0.331*G + 0.500*B)
// Pr = 128 + 0.500*R - 0.418*G - 0.082*B (Pr = 0.500*R - 0.419*G - 0.081*B)
reg [7:0] y, pb, pr;
reg [23:0] rgb;
@@ -36,25 +36,25 @@ always @(posedge clk) begin
reg hsync2, vsync2, csync2;
reg hsync1, vsync1, csync1;
y_1r <= 19'd04096 + ({red, 8'd0} + {red, 3'd0});
pb_1r <= 19'd32768 - ({red, 7'd0} + {red, 4'd0} + {red, 3'd0});
pr_1r <= 19'd32768 + ({red, 8'd0} + {red, 7'd0} + {red, 6'd0});
y_1r <= {red, 6'd0} + {red, 3'd0} + {red, 2'd0} + red;
pb_1r <= 19'd32768 - ({red, 5'd0} + {red, 3'd0} + {red, 1'd0});
pr_1r <= 19'd32768 + {red, 7'd0};
y_1g <= {green, 9'd0} + {green, 2'd0};
pb_1g <= {green, 8'd0} + {green, 5'd0} + {green, 3'd0};
pr_1g <= {green, 8'd0} + {green, 6'd0} + {green, 5'd0} + {green, 4'd0} + {green, 3'd0};
y_1g <= {green, 7'd0} + {green, 4'd0} + {green, 2'd0} + {green, 1'd0};
pb_1g <= {green, 6'd0} + {green, 4'd0} + {green, 2'd0} + green;
pr_1g <= {green, 6'd0} + {green, 5'd0} + {green, 3'd0} + {green, 1'd0};
y_1b <= {blue, 6'd0} + {blue, 5'd0} + {blue, 2'd0};
pb_1b <= {blue, 8'd0} + {blue, 7'd0} + {blue, 6'd0};
pr_1b <= {blue, 6'd0} + {blue, 3'd0};
y_1b <= {blue, 4'd0} + {blue, 3'd0} + {blue, 2'd0} + blue;
pb_1b <= {blue, 7'd0};
pr_1b <= {blue, 4'd0} + {blue, 2'd0} + blue;
y_2 <= y_1r + y_1g + y_1b;
pb_2 <= pb_1r - pb_1g + pb_1b;
pr_2 <= pr_1r - pr_1g - pr_1b;
y <= ( y_2[18] || !y_2[17:12]) ? 8'd16 : (y_2[17:8] > 235) ? 8'd235 : y_2[15:8];
pb <= (pb_2[18] || !pb_2[17:12]) ? 8'd16 : (&pb_2[17:12]) ? 8'd240 : pb_2[15:8];
pr <= (pr_2[18] || !pr_2[17:12]) ? 8'd16 : (&pr_2[17:12]) ? 8'd240 : pr_2[15:8];
y <= y_2[18] ? 8'd0 : y_2[16] ? 8'd255 : y_2[15:8];
pb <= pb_2[18] ? 8'd0 : pb_2[16] ? 8'd255 : pb_2[15:8];
pr <= pr_2[18] ? 8'd0 : pr_2[16] ? 8'd255 : pr_2[15:8];
hsync_o <= hsync2; hsync2 <= hsync1; hsync1 <= hsync;
vsync_o <= vsync2; vsync2 <= vsync1; vsync1 <= vsync;