20 lines
575 B
Coq
20 lines
575 B
Coq
|
module decoder (input [31:0] instruction,
|
||
|
output immediate,
|
||
|
output we_reg, adder_pc,
|
||
|
output [1:0] input_reg,
|
||
|
output [4:0] select_a, select_b, select_d,
|
||
|
output source_alu,
|
||
|
output [2:0] op_code_alu,
|
||
|
output mem_we,
|
||
|
output [31:0] mem_address
|
||
|
output jmp_pc, b_pc);
|
||
|
|
||
|
always @(*) begin
|
||
|
if (reset == 1)
|
||
|
registers[0] <= 32'b0;
|
||
|
else if (we == 1)
|
||
|
registers[select_d] <= input_d;
|
||
|
end
|
||
|
|
||
|
endmodule
|