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[/] [openrisc/] [trunk/] [or1200/] [rtl/] [verilog/] [or1200_rfram_generic.v] - Diff between revs 141 and 258

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Rev 141 Rev 258
Line 154... Line 154... 
//
 
//
 
// Write port
 
// Write port
 
//
 
//
 
always @(posedge clk or posedge rst)
 
always @(posedge clk or posedge rst)
 
        if (rst) begin
 
        if (rst) begin
 
                mem <= #1 {512'h0, 512'h0};
 
                mem <=  {512'h0, 512'h0};
 
        end
 
        end
 
        else if (ce_w & we_w)
 
        else if (ce_w & we_w)
 
                case (addr_w)   // synopsys parallel_case
 
                case (addr_w)   // synopsys parallel_case
 
                        5'd01: mem[32*1+31:32*1] <= #1 di_w;
 
                        5'd01: mem[32*1+31:32*1] <=  di_w;
 
                        5'd02: mem[32*2+31:32*2] <= #1 di_w;
 
                        5'd02: mem[32*2+31:32*2] <=  di_w;
 
                        5'd03: mem[32*3+31:32*3] <= #1 di_w;
 
                        5'd03: mem[32*3+31:32*3] <=  di_w;
 
                        5'd04: mem[32*4+31:32*4] <= #1 di_w;
 
                        5'd04: mem[32*4+31:32*4] <=  di_w;
 
                        5'd05: mem[32*5+31:32*5] <= #1 di_w;
 
                        5'd05: mem[32*5+31:32*5] <=  di_w;
 
                        5'd06: mem[32*6+31:32*6] <= #1 di_w;
 
                        5'd06: mem[32*6+31:32*6] <=  di_w;
 
                        5'd07: mem[32*7+31:32*7] <= #1 di_w;
 
                        5'd07: mem[32*7+31:32*7] <=  di_w;
 
                        5'd08: mem[32*8+31:32*8] <= #1 di_w;
 
                        5'd08: mem[32*8+31:32*8] <=  di_w;
 
                        5'd09: mem[32*9+31:32*9] <= #1 di_w;
 
                        5'd09: mem[32*9+31:32*9] <=  di_w;
 
                        5'd10: mem[32*10+31:32*10] <= #1 di_w;
 
                        5'd10: mem[32*10+31:32*10] <=  di_w;
 
                        5'd11: mem[32*11+31:32*11] <= #1 di_w;
 
                        5'd11: mem[32*11+31:32*11] <=  di_w;
 
                        5'd12: mem[32*12+31:32*12] <= #1 di_w;
 
                        5'd12: mem[32*12+31:32*12] <=  di_w;
 
                        5'd13: mem[32*13+31:32*13] <= #1 di_w;
 
                        5'd13: mem[32*13+31:32*13] <=  di_w;
 
                        5'd14: mem[32*14+31:32*14] <= #1 di_w;
 
                        5'd14: mem[32*14+31:32*14] <=  di_w;
 
                        5'd15: mem[32*15+31:32*15] <= #1 di_w;
 
                        5'd15: mem[32*15+31:32*15] <=  di_w;
 
`ifdef OR1200_RFRAM_16REG
 
`ifdef OR1200_RFRAM_16REG
 
`else
 
`else
 
                        5'd16: mem[32*16+31:32*16] <= #1 di_w;
 
                        5'd16: mem[32*16+31:32*16] <=  di_w;
 
                        5'd17: mem[32*17+31:32*17] <= #1 di_w;
 
                        5'd17: mem[32*17+31:32*17] <=  di_w;
 
                        5'd18: mem[32*18+31:32*18] <= #1 di_w;
 
                        5'd18: mem[32*18+31:32*18] <=  di_w;
 
                        5'd19: mem[32*19+31:32*19] <= #1 di_w;
 
                        5'd19: mem[32*19+31:32*19] <=  di_w;
 
                        5'd20: mem[32*20+31:32*20] <= #1 di_w;
 
                        5'd20: mem[32*20+31:32*20] <=  di_w;
 
                        5'd21: mem[32*21+31:32*21] <= #1 di_w;
 
                        5'd21: mem[32*21+31:32*21] <=  di_w;
 
                        5'd22: mem[32*22+31:32*22] <= #1 di_w;
 
                        5'd22: mem[32*22+31:32*22] <=  di_w;
 
                        5'd23: mem[32*23+31:32*23] <= #1 di_w;
 
                        5'd23: mem[32*23+31:32*23] <=  di_w;
 
                        5'd24: mem[32*24+31:32*24] <= #1 di_w;
 
                        5'd24: mem[32*24+31:32*24] <=  di_w;
 
                        5'd25: mem[32*25+31:32*25] <= #1 di_w;
 
                        5'd25: mem[32*25+31:32*25] <=  di_w;
 
                        5'd26: mem[32*26+31:32*26] <= #1 di_w;
 
                        5'd26: mem[32*26+31:32*26] <=  di_w;
 
                        5'd27: mem[32*27+31:32*27] <= #1 di_w;
 
                        5'd27: mem[32*27+31:32*27] <=  di_w;
 
                        5'd28: mem[32*28+31:32*28] <= #1 di_w;
 
                        5'd28: mem[32*28+31:32*28] <=  di_w;
 
                        5'd29: mem[32*29+31:32*29] <= #1 di_w;
 
                        5'd29: mem[32*29+31:32*29] <=  di_w;
 
                        5'd30: mem[32*30+31:32*30] <= #1 di_w;
 
                        5'd30: mem[32*30+31:32*30] <=  di_w;
 
                        5'd31: mem[32*31+31:32*31] <= #1 di_w;
 
                        5'd31: mem[32*31+31:32*31] <=  di_w;
 
`endif
 
`endif
 
                        default: mem[32*0+31:32*0] <= #1 32'h0000_0000;
 
                        default: mem[32*0+31:32*0] <=  32'h0000_0000;
 
                endcase
 
                endcase
 
 
 
 
 
//
 
//
 
// Read port A
 
// Read port A
 
//
 
//
 
always @(posedge clk or posedge rst)
 
always @(posedge clk or posedge rst)
 
        if (rst) begin
 
        if (rst) begin
 
                intaddr_a <= #1 5'h00;
 
                intaddr_a <=  5'h00;
 
        end
 
        end
 
        else if (ce_a)
 
        else if (ce_a)
 
                intaddr_a <= #1 addr_a;
 
                intaddr_a <=  addr_a;
 
 
 
 
 
always @(mem or intaddr_a)
 
always @(mem or intaddr_a)
 
        case (intaddr_a)        // synopsys parallel_case
 
        case (intaddr_a)        // synopsys parallel_case
 
                5'd01: do_a = mem[32*1+31:32*1];
 
                5'd01: do_a = mem[32*1+31:32*1];
 
                5'd02: do_a = mem[32*2+31:32*2];
 
                5'd02: do_a = mem[32*2+31:32*2];
Line 249... Line 249... 
//
 
//
 
// Read port B
 
// Read port B
 
//
 
//
 
always @(posedge clk or posedge rst)
 
always @(posedge clk or posedge rst)
 
        if (rst) begin
 
        if (rst) begin
 
                intaddr_b <= #1 5'h00;
 
                intaddr_b <=  5'h00;
 
        end
 
        end
 
        else if (ce_b)
 
        else if (ce_b)
 
                intaddr_b <= #1 addr_b;
 
                intaddr_b <=  addr_b;
 
 
 
 
 
always @(mem or intaddr_b)
 
always @(mem or intaddr_b)
 
        case (intaddr_b)        // synopsys parallel_case
 
        case (intaddr_b)        // synopsys parallel_case
 
                5'd01: do_b = mem[32*1+31:32*1];
 
                5'd01: do_b = mem[32*1+31:32*1];
 
                5'd02: do_b = mem[32*2+31:32*2];
 
                5'd02: do_b = mem[32*2+31:32*2];

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