Files
kernels/rtl/VX_register_file_master_slave.v
2019-09-05 19:32:37 -04:00

72 lines
1.6 KiB
Verilog

module VX_register_file_master_slave (
input wire clk,
input wire in_wb_warp,
input wire in_valid,
input wire in_write_register,
input wire[4:0] in_rd,
input wire[31:0] in_data,
input wire[4:0] in_src1,
input wire[4:0] in_src2,
input wire in_wspawn,
input wire in_to_wspawn,
input wire[31:0][31:0] in_wspawn_regs,
output reg[31:0] out_src1_data,
output reg[31:0] out_src2_data,
output wire[31:0][31:0] out_regs
);
reg[31:0][31:0] registers;
wire[31:0] write_data;
wire[4:0] write_register;
wire write_enable;
assign out_regs = registers;
// reg[5:0] i;
// always @(posedge clk) begin
// for (i = 0; i < 32; i++) begin
// $display("%d: %h",i, registers[i[4:0]]);
// end
// end
// integer i;
assign write_data = in_data;
assign write_register = in_rd;
// always @(*) begin
// $display("TID: %d: %h",10,registers[10]);
// $display("WID: %d: %h",11,registers[11]);
// end
assign write_enable = (in_write_register && (in_rd != 5'h0)) && in_valid && in_wb_warp;
always @(posedge clk) begin
if(write_enable && !in_wspawn) begin
// $display("RF: Writing %h to %d",write_data, write_register);
registers[write_register] <= write_data;
end else if (in_wspawn && in_to_wspawn) begin
// $display("WSPAWN IN MASTER SLAVE");
registers <= in_wspawn_regs;
end
end
// always @(posedge clk) begin
// for (i = 0; i < 32; i = i + 1)
// $display("(%d): %x", i, registers[i]);
// end
always @(negedge clk) begin
out_src1_data <= registers[in_src1];
out_src2_data <= registers[in_src2];
end
endmodule