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Fix CGA video resolution (is now 640x200)

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This commit is contained in:
Newsdee
2022-07-20 16:39:05 +08:00
parent f98f94e753
commit 23c2192959
1 changed files with 6 additions and 7 deletions
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13
PCXT.sv
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@@ -334,7 +334,7 @@ wire clk_100;
wire clk_28_636;
wire clk_56_875;
reg clk_14_318 = 1'b0;
//reg clk_7_16 = 1'b0;
reg clk_7_16 = 1'b0;
wire clk_4_77;
wire clk_cpu;
wire clk_opl2;
@@ -364,7 +364,6 @@ wire ce_pix;
//wire [7:0] video;
assign CLK_VIDEO = clk_28_636;
assign CE_PIXEL = 1'b1;
reg cen_44100;
reg [31:0] cen_44100_cnt;
@@ -380,12 +379,12 @@ end
always @(posedge clk_28_636)
clk_14_318 <= ~clk_14_318; // 14.318Mhz
//always @(posedge clk_14_318)
// clk_7_16 <= ~clk_7_16; // 7.16Mhz
always @(posedge clk_14_318) begin
clk_7_16 <= ~clk_7_16; // 7.16Mhz
CE_PIXEL <= mda_mode ? 1'b1 : clk_7_16;
end
clk_div3 clk_normal // 4.77MHz
(
.clk(clk_14_318),