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Implemented the two-port GPR model

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Lingjun Zhu 2019-10-13 19:44:50 -04:00
parent b9d2e09d78
commit 8af8c67299
1 changed files with 84 additions and 0 deletions
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models/memory/cln28hpc/VX_gpr.v Normal file
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`include "VX_define.v"
module VX_gpr (
input wire clk,
input wire valid_write_request,
VX_gpr_read_inter VX_gpr_read,
VX_wb_inter VX_writeback_inter,
output reg[`NT_M1:0][31:0] out_a_reg_data,
output reg[`NT_M1:0][31:0] out_b_reg_data
);
wire write_enable;
assign write_enable = valid_write_request && ((VX_writeback_inter.wb != 0) && (VX_writeback_inter.rd != 5'h0));
byte_enabled_simple_dual_port_ram first_ram(
.we (write_enable),
.clk (clk),
.waddr (VX_writeback_inter.rd),
.raddr1(VX_gpr_read.rs1),
.raddr2(VX_gpr_read.rs2),
.be (VX_writeback_inter.wb_valid),
.wdata (VX_writeback_inter.write_data),
.q1 (out_a_reg_data),
.q2 (out_b_reg_data)
);
// // USING RAM blocks
// // First RAM
// byte_enabled_simple_dual_port_ram first_ram(
// .we (write_enable),
// .clk (clk),
// .waddr(VX_writeback_inter.rd),
// .raddr(VX_gpr_read.rs1),
// .be (VX_writeback_inter.wb_valid),
// .wdata(VX_writeback_inter.write_data),
// .q (out_a_reg_data)
// );
// // Second RAM block
// byte_enabled_simple_dual_port_ram second_ram(
// .we (write_enable),
// .clk (clk),
// .waddr(VX_writeback_inter.rd),
// .raddr(VX_gpr_read.rs2),
// .be (VX_writeback_inter.wb_valid),
// .wdata(VX_writeback_inter.write_data),
// .q (out_b_reg_data)
// );
// logic[`NT_M1:0][31:0] gpr[31:0]; // gpr[register_number][thread_number][data_bits]
// wire write_enable;
// assign write_enable = valid_write_request && ((VX_writeback_inter.wb != 0) && (VX_writeback_inter.rd != 5'h0));
// assign read_enable = valid_request;
// // Using Registers
// integer thread_index;
// always_ff@(posedge clk)
// begin
// if (write_enable) begin
// for (thread_index = 0; thread_index <= `NT_M1; thread_index = thread_index + 1) begin
// if (VX_writeback_inter.wb_valid[thread_index]) begin
// gpr[VX_writeback_inter.rd][thread_index] <= VX_writeback_inter.write_data[thread_index];
// end
// end
// end
// out_a_reg_data <= gpr[VX_gpr_read.rs1];
// out_b_reg_data <= gpr[VX_gpr_read.rs2];
// end
endmodule