58 lines
1.5 KiB
Verilog
58 lines
1.5 KiB
Verilog
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`include "VX_define.v"
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module byte_enabled_simple_dual_port_ram
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(
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input we, clk,
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input wire reset,
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input wire[4:0] waddr, raddr1, raddr2,
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input wire[`NT_M1:0] be,
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input wire[`NT_M1:0][31:0] wdata,
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output reg[`NT_M1:0][31:0] q1, q2
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);
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// integer regi;
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// integer threadi;
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// Thread Byte Bit
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logic [`NT_M1:0][3:0][7:0] GPR[31:0];
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// initial begin
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// for (ini = 0; ini < 32; ini = ini + 1) GPR[ini] = 0;
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// end
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integer ini;
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always @(posedge clk, posedge reset) begin
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// TODO Clearing ram not currently supported on FPGA.
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if (reset) begin
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`ifdef ASIC
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for (ini = 0; ini < 32; ini = ini + 1) GPR[ini] <= 0;
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`endif
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end
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else if(we) begin
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integer thread_ind;
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for (thread_ind = 0; thread_ind <= `NT_M1; thread_ind = thread_ind + 1) begin
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if(be[thread_ind]) GPR[waddr][thread_ind][0] <= wdata[thread_ind][7:0];
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if(be[thread_ind]) GPR[waddr][thread_ind][1] <= wdata[thread_ind][15:8];
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if(be[thread_ind]) GPR[waddr][thread_ind][2] <= wdata[thread_ind][23:16];
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if(be[thread_ind]) GPR[waddr][thread_ind][3] <= wdata[thread_ind][31:24];
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end
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end
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// $display("^^^^^^^^^^^^^^^^^^^^^^^");
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// for (regi = 0; regi <= 31; regi = regi + 1) begin
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// for (threadi = 0; threadi <= `NT_M1; threadi = threadi + 1) begin
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// if (GPR[regi][threadi] != 0) $display("$%d: %h",regi, GPR[regi][threadi]);
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// end
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// end
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end
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assign q1 = GPR[raddr1];
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assign q2 = GPR[raddr2];
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// assign q1 = (raddr1 == waddr && (we)) ? wdata : GPR[raddr1];
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// assign q2 = (raddr2 == waddr && (we)) ? wdata : GPR[raddr2];
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endmodule
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