/***************************************************************** * * ███████╗██████╗ ██████╗ ██╗ ██████╗ ███████╗██╗ ██╗ * ██╔════╝██╔══██╗██╔══██╗██║ ╚════██╗██╔════╝██║ ██║ * ███████╗██████╔╝██║ ██║██║ █████╔╝███████╗██║ ██║ * ╚════██║██╔══██╗██║ ██║██║ ██╔═══╝ ╚════██║╚██╗ ██╔╝ * ███████║██║ ██║██████╔╝███████╗███████╗███████║ ╚████╔╝ * ╚══════╝╚═╝ ╚═╝╚═════╝ ╚══════╝╚══════╝╚══════╝ ╚═══╝ * * The present RTL was generated by srdl2sv v0.01. The RTL and all * templates the RTL is derived from are licensed under the MIT * license. The license is shown below. * * srdl2sv itself is licensed under GPLv3. * * Maintainer : Dennis Potter * Report Bugs: https://github.com/Silicon1602/srdl2sv/issues * * ===GENERATION INFORMATION====================================== * * Generation information: * - User: : dpotter * - Time : November 26 2021 16:32:58 * - Path : /home/dpotter/srdl2sv/examples/simple_rw_reg * - RDL file : ['simple_rw_reg.rdl'] * - Hostname : ArchXPS * * RDL include directories: * - * * Commandline arguments to srdl2sv: * - Ouput Directory : srdl2sv_out * - Stream Log Level : INFO * - File Log Level : NONE * - Use Real Tabs : False * - Tab Width : 4 * - Enums Enabled : True * - Address Errors : True * - Unpacked I/Os : True * - Register Bus Type: amba3ahblite * - Address width : 32 * - Byte enables : True * - Descriptions : {'AddrMap': False, 'RegFile': False, 'Memory': False, 'Register': False, 'Field': False} * * ===LICENSE OF SIMPLE_RW_REG.SV===================================== * * Copyright 2021 Dennis Potter * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, * copy, modify, merge, publish, distribute, sublicense, and/or * sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following * conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. ****************************************************************/ module simple_rw_reg ( // Reset signals declared for registers // Ports for 'General Clock' input clk, // Ports for 'AHB Protocol' input HRESETn , input [31:0] HADDR , input HWRITE , input [2:0] HSIZE , input [3:0] HPROT , input [1:0] HTRANS , input [32-1:0] HWDATA , input HSEL , output HREADYOUT, output HRESP , output [32-1:0] HRDATA , // Ports for 'register_1d' input register_1d__f1_hw_wr, input [15:0] register_1d__f1_in , output [15:0] register_1d__f1_r , input register_1d__f2_hw_wr, input [15:0] register_1d__f2_in , output [15:0] register_1d__f2_r , // Ports for 'register_2d' input register_2d__f1_hw_wr[2], input [15:0] register_2d__f1_in [2], output [15:0] register_2d__f1_r [2], input register_2d__f2_hw_wr[2], input [15:0] register_2d__f2_in [2], output [15:0] register_2d__f2_r [2], // Ports for 'register_3d' input register_3d__f1_hw_wr[2][2], input [15:0] register_3d__f1_in [2][2], output [15:0] register_3d__f1_r [2][2], input register_3d__f2_hw_wr[2][2], input [15:0] register_3d__f2_in [2][2], output [15:0] register_3d__f2_r [2][2] ); // Internal signals srdl2sv_widget_if #(.ADDR_W (32), .DATA_W(32)) widget_if; /******************************************************************* * AMBA 3 AHB Lite Widget * ====================== * Naming conventions * - widget_if -> SystemVerilog interface to between widgets * and the internal srdl2sv registers. * - H* -> Signals as defined in AMBA3 AHB Lite * specification * - clk -> Clock that drives registers and the bus *******************************************************************/ srdl2sv_amba3ahblite #(.FLOP_REGISTER_IF (0), .BUS_BITS (32), .NO_BYTE_ENABLE (0)) srdl2sv_amba3ahblite_inst (// Bus protocol .HRESETn, .HCLK (clk), .HADDR, .HWRITE, .HSIZE, .HPROT, .HTRANS, .HWDATA, .HSEL, .HREADYOUT, .HRESP, .HRDATA, // Interface to internal logic .widget_if); genvar gv_a, gv_b; /******************************************************************* /******************************************************************* /* REGISTER : register_1d /* DIMENSION : 0 /* DEPTHS (per dimension): [] /******************************************************************* /*******************************************************************/ logic register_1d_active ; logic register_1d_sw_wr ; logic [31:0] register_1d_data_mux_in; logic register_1d_rdy_mux_in ; logic register_1d_err_mux_in ; logic [15:0] register_1d__f1_q ; logic [15:0] register_1d__f2_q ; // Register-activation for 'register_1d' assign register_1d_active = widget_if.addr == 0; assign register_1d_sw_wr = register_1d_active && widget_if.w_vld; //-----------------FIELD SUMMARY----------------- // name : f1 (register_1d[15:0]) // access : hw = rw // sw = rw (precedence) // reset : - / - // flags : ['sw', 'we'] // external : False // storage type : StorageType.FLOPS //----------------------------------------------- always_ff @(posedge clk) begin if (register_1d_sw_wr) begin if (widget_if.byte_en[0]) register_1d__f1_q[7:0] <= widget_if.w_data[7:0]; if (widget_if.byte_en[1]) register_1d__f1_q[15:8] <= widget_if.w_data[15:8]; end else if (register_1d__f1_hw_wr) register_1d__f1_q <= register_1d__f1_in; end // of register_1d__f1's always_ff // Connect register to hardware output port assign register_1d__f1_r = register_1d__f1_q; //-----------------FIELD SUMMARY----------------- // name : f2 (register_1d[31:16]) // access : hw = rw // sw = rw (precedence) // reset : - / - // flags : ['sw', 'we'] // external : False // storage type : StorageType.FLOPS //----------------------------------------------- always_ff @(posedge clk) begin if (register_1d_sw_wr) begin if (widget_if.byte_en[2]) register_1d__f2_q[7:0] <= widget_if.w_data[23:16]; if (widget_if.byte_en[3]) register_1d__f2_q[15:8] <= widget_if.w_data[31:24]; end else if (register_1d__f2_hw_wr) register_1d__f2_q <= register_1d__f2_in; end // of register_1d__f2's always_ff // Connect register to hardware output port assign register_1d__f2_r = register_1d__f2_q; /********************************************** * Assign all fields to signal to Mux * **********************************************/ // Assign all fields. Fields that are not readable are tied to 0. assign register_1d_data_mux_in = {register_1d__f2_q, register_1d__f1_q}; // Internal registers are ready immediately assign register_1d_rdy_mux_in = 1'b1; // Return an error if *no* read and *no* write was succesful. If some bits // cannot be read/written but others are succesful, don't return and error // Hence, as long as one action can be succesful, no error will be returned. assign register_1d_err_mux_in = !((widget_if.r_vld && (|widget_if.byte_en[3:0])) || (widget_if.w_vld && (|widget_if.byte_en[3:0]))); /******************************************************************* /******************************************************************* /* REGISTER : register_2d /* DIMENSION : 1 /* DEPTHS (per dimension): [2] /******************************************************************* /*******************************************************************/ logic register_2d_active [2]; logic register_2d_sw_wr [2]; logic [31:0] register_2d_data_mux_in[2]; logic register_2d_rdy_mux_in [2]; logic register_2d_err_mux_in [2]; logic [15:0] register_2d__f1_q [2]; logic [15:0] register_2d__f2_q [2]; generate for (gv_a = 0; gv_a < 2; gv_a++) begin // Register-activation for 'register_2d' assign register_2d_active[gv_a] = widget_if.addr == 4+(gv_a*4); assign register_2d_sw_wr[gv_a] = register_2d_active[gv_a] && widget_if.w_vld; //-----------------FIELD SUMMARY----------------- // name : f1 (register_2d[15:0]) // access : hw = rw // sw = rw (precedence) // reset : - / - // flags : ['sw', 'we'] // external : False // storage type : StorageType.FLOPS //----------------------------------------------- always_ff @(posedge clk) begin if (register_2d_sw_wr[gv_a]) begin if (widget_if.byte_en[0]) register_2d__f1_q[gv_a][7:0] <= widget_if.w_data[7:0]; if (widget_if.byte_en[1]) register_2d__f1_q[gv_a][15:8] <= widget_if.w_data[15:8]; end else if (register_2d__f1_hw_wr[gv_a]) register_2d__f1_q[gv_a] <= register_2d__f1_in[gv_a]; end // of register_2d__f1's always_ff // Connect register to hardware output port assign register_2d__f1_r[gv_a] = register_2d__f1_q[gv_a]; //-----------------FIELD SUMMARY----------------- // name : f2 (register_2d[31:16]) // access : hw = rw // sw = rw (precedence) // reset : - / - // flags : ['sw', 'we'] // external : False // storage type : StorageType.FLOPS //----------------------------------------------- always_ff @(posedge clk) begin if (register_2d_sw_wr[gv_a]) begin if (widget_if.byte_en[2]) register_2d__f2_q[gv_a][7:0] <= widget_if.w_data[23:16]; if (widget_if.byte_en[3]) register_2d__f2_q[gv_a][15:8] <= widget_if.w_data[31:24]; end else if (register_2d__f2_hw_wr[gv_a]) register_2d__f2_q[gv_a] <= register_2d__f2_in[gv_a]; end // of register_2d__f2's always_ff // Connect register to hardware output port assign register_2d__f2_r[gv_a] = register_2d__f2_q[gv_a]; /********************************************** * Assign all fields to signal to Mux * **********************************************/ // Assign all fields. Fields that are not readable are tied to 0. assign register_2d_data_mux_in[gv_a] = {register_2d__f2_q[gv_a], register_2d__f1_q[gv_a]}; // Internal registers are ready immediately assign register_2d_rdy_mux_in[gv_a] = 1'b1; // Return an error if *no* read and *no* write was succesful. If some bits // cannot be read/written but others are succesful, don't return and error // Hence, as long as one action can be succesful, no error will be returned. assign register_2d_err_mux_in[gv_a] = !((widget_if.r_vld && (|widget_if.byte_en[3:0])) || (widget_if.w_vld && (|widget_if.byte_en[3:0]))); end // of for loop with iterator gv_a endgenerate /******************************************************************* /******************************************************************* /* REGISTER : register_3d /* DIMENSION : 2 /* DEPTHS (per dimension): [2][2] /******************************************************************* /*******************************************************************/ logic register_3d_active [2][2]; logic register_3d_sw_wr [2][2]; logic [31:0] register_3d_data_mux_in[2][2]; logic register_3d_rdy_mux_in [2][2]; logic register_3d_err_mux_in [2][2]; logic [15:0] register_3d__f1_q [2][2]; logic [15:0] register_3d__f2_q [2][2]; generate for (gv_a = 0; gv_a < 2; gv_a++) begin for (gv_b = 0; gv_b < 2; gv_b++) begin // Register-activation for 'register_3d' assign register_3d_active[gv_a][gv_b] = widget_if.addr == 12+(gv_a*8+gv_b*4); assign register_3d_sw_wr[gv_a][gv_b] = register_3d_active[gv_a][gv_b] && widget_if.w_vld; //-----------------FIELD SUMMARY----------------- // name : f1 (register_3d[15:0]) // access : hw = rw // sw = rw (precedence) // reset : - / - // flags : ['sw', 'we'] // external : False // storage type : StorageType.FLOPS //----------------------------------------------- always_ff @(posedge clk) begin if (register_3d_sw_wr[gv_a][gv_b]) begin if (widget_if.byte_en[0]) register_3d__f1_q[gv_a][gv_b][7:0] <= widget_if.w_data[7:0]; if (widget_if.byte_en[1]) register_3d__f1_q[gv_a][gv_b][15:8] <= widget_if.w_data[15:8]; end else if (register_3d__f1_hw_wr[gv_a][gv_b]) register_3d__f1_q[gv_a][gv_b] <= register_3d__f1_in[gv_a][gv_b]; end // of register_3d__f1's always_ff // Connect register to hardware output port assign register_3d__f1_r[gv_a][gv_b] = register_3d__f1_q[gv_a][gv_b]; //-----------------FIELD SUMMARY----------------- // name : f2 (register_3d[31:16]) // access : hw = rw // sw = rw (precedence) // reset : - / - // flags : ['sw', 'we'] // external : False // storage type : StorageType.FLOPS //----------------------------------------------- always_ff @(posedge clk) begin if (register_3d_sw_wr[gv_a][gv_b]) begin if (widget_if.byte_en[2]) register_3d__f2_q[gv_a][gv_b][7:0] <= widget_if.w_data[23:16]; if (widget_if.byte_en[3]) register_3d__f2_q[gv_a][gv_b][15:8] <= widget_if.w_data[31:24]; end else if (register_3d__f2_hw_wr[gv_a][gv_b]) register_3d__f2_q[gv_a][gv_b] <= register_3d__f2_in[gv_a][gv_b]; end // of register_3d__f2's always_ff // Connect register to hardware output port assign register_3d__f2_r[gv_a][gv_b] = register_3d__f2_q[gv_a][gv_b]; /********************************************** * Assign all fields to signal to Mux * **********************************************/ // Assign all fields. Fields that are not readable are tied to 0. assign register_3d_data_mux_in[gv_a][gv_b] = {register_3d__f2_q[gv_a][gv_b], register_3d__f1_q[gv_a][gv_b]}; // Internal registers are ready immediately assign register_3d_rdy_mux_in[gv_a][gv_b] = 1'b1; // Return an error if *no* read and *no* write was succesful. If some bits // cannot be read/written but others are succesful, don't return and error // Hence, as long as one action can be succesful, no error will be returned. assign register_3d_err_mux_in[gv_a][gv_b] = !((widget_if.r_vld && (|widget_if.byte_en[3:0])) || (widget_if.w_vld && (|widget_if.byte_en[3:0]))); end // of for loop with iterator gv_b end // of for loop with iterator gv_a endgenerate // Read multiplexer always_comb begin unique case (1'b1) register_1d_active: begin widget_if.r_data = register_1d_data_mux_in; widget_if.err = register_1d_err_mux_in; widget_if.rdy = register_1d_rdy_mux_in; end register_2d_active[0]: begin widget_if.r_data = register_2d_data_mux_in[0]; widget_if.err = register_2d_err_mux_in[0]; widget_if.rdy = register_2d_rdy_mux_in[0]; end register_2d_active[1]: begin widget_if.r_data = register_2d_data_mux_in[1]; widget_if.err = register_2d_err_mux_in[1]; widget_if.rdy = register_2d_rdy_mux_in[1]; end register_3d_active[0][0]: begin widget_if.r_data = register_3d_data_mux_in[0][0]; widget_if.err = register_3d_err_mux_in[0][0]; widget_if.rdy = register_3d_rdy_mux_in[0][0]; end register_3d_active[0][1]: begin widget_if.r_data = register_3d_data_mux_in[0][1]; widget_if.err = register_3d_err_mux_in[0][1]; widget_if.rdy = register_3d_rdy_mux_in[0][1]; end register_3d_active[1][0]: begin widget_if.r_data = register_3d_data_mux_in[1][0]; widget_if.err = register_3d_err_mux_in[1][0]; widget_if.rdy = register_3d_rdy_mux_in[1][0]; end register_3d_active[1][1]: begin widget_if.r_data = register_3d_data_mux_in[1][1]; widget_if.err = register_3d_err_mux_in[1][1]; widget_if.rdy = register_3d_rdy_mux_in[1][1]; end default: begin // If the address is not found, return an error widget_if.r_data = 0; widget_if.err = 1; widget_if.rdy = widget_if.r_vld || widget_if.w_vld; end endcase end endmodule