Write verilog code describing a group of four 8bit registers

Write verilog code describing a group of four 8-bit registers. On an incoming clock, you should be able to move the contents of any one of the registers to any of the others, or take an 8-bit input to any one of them, based on a 4-bit selection code.

-behavioral verilog

-gate-level verilog

Solution

reg [3:0] count;

wire cnt_done;

assign cnt_done = ~| count;

assign Q = count;

always @(posedge Clock)

if (Clear)

count <= 0;

else if (Enable)

if (Load | cnt_done)

count <= 4\'b1010; // decimal 10

else

count <= count - 1;

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