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keyboard: fix arrow keys in basic

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This commit is contained in:
Eugene Lozovoy
2024-10-04 12:58:34 +03:00
parent d71b817e49
commit 23a46a3379
2 changed files with 28 additions and 8 deletions
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35
rtl/periph/keyboard.v
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@ -8,6 +8,7 @@ module keyboard
output reg [7:0] scancode,
input scancode_ack,
input scancode_clr,
input matrix_update,
input [10:0] ps2_key,
input [1:0] cfg_joystick1,
input [1:0] cfg_joystick2,
@ -16,18 +17,36 @@ module keyboard
);
reg [4:0] keys [7:0];
reg [4:0] keys_r [7:0];
wire [4:0] row0 = a[0]? 5'b11111 : keys[0];
wire [4:0] row1 = a[1]? 5'b11111 : keys[1];
wire [4:0] row2 = a[2]? 5'b11111 : keys[2];
wire [4:0] row3 = a[3]? 5'b11111 : keys[3];
wire [4:0] row4 = a[4]? 5'b11111 : keys[4];
wire [4:0] row5 = a[5]? 5'b11111 : keys[5];
wire [4:0] row6 = a[6]? 5'b11111 : keys[6];
wire [4:0] row7 = a[7]? 5'b11111 : keys[7];
wire [4:0] row0 = a[0]? 5'b11111 : keys_r[0];
wire [4:0] row1 = a[1]? 5'b11111 : keys_r[1];
wire [4:0] row2 = a[2]? 5'b11111 : keys_r[2];
wire [4:0] row3 = a[3]? 5'b11111 : keys_r[3];
wire [4:0] row4 = a[4]? 5'b11111 : keys_r[4];
wire [4:0] row5 = a[5]? 5'b11111 : keys_r[5];
wire [4:0] row6 = a[6]? 5'b11111 : keys_r[6];
wire [4:0] row7 = a[7]? 5'b11111 : keys_r[7];
assign keyb = row0 & row1 & row2 & row3 & row4 & row5 & row6 & row7;
reg matrix_update_r;
always @(posedge clk)
matrix_update_r <= matrix_update;
always @(posedge clk or posedge reset) begin
integer i;
if (reset) begin
for (i = 0; i < 8; i = i + 1)
keys_r[i] <= 5'b11111;
end
else if (matrix_update && !matrix_update_r) begin
for (i = 0; i < 8; i = i + 1)
keys_r[i] <= keys[i];
end
end
wire [15:0] joys = {joystick2, joystick1};
reg [15:0] joys_r = 0;
reg joys_ch = 0;