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srdl2sv/examples/simple_rw_reg/srdl2sv_out/simple_rw_reg.sv

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/*****************************************************************
*
* ███████╗██████╗ ██████╗ ██╗ ██████╗ ███████╗██╗ ██╗
* ██╔════╝██╔══██╗██╔══██╗██║ ╚════██╗██╔════╝██║ ██║
* ███████╗██████╔╝██║ ██║██║ █████╔╝███████╗██║ ██║
* ╚════██║██╔══██╗██║ ██║██║ ██╔═══╝ ╚════██║╚██╗ ██╔╝
* ███████║██║ ██║██████╔╝███████╗███████╗███████║ ╚████╔╝
* ╚══════╝╚═╝ ╚═╝╚═════╝ ╚══════╝╚══════╝╚══════╝ ╚═══╝
*
* 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 <dennis@dennispotter.eu>
* Report Bugs: https://github.com/Silicon1602/srdl2sv/issues
*
* ===GENERATION INFORMATION======================================
*
* Generation information:
* - User: : dpotter
* - Time : November 02 2021 23:27:37
* - 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
* - 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 <dennis@dennispotter.eu>
*
* 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
(
// Resets
// Inputs
input clk ,
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 ,
input register_1d__f1_hw_wr,
input [15:0] register_1d__f1_in ,
input register_1d__f2_hw_wr,
input [15:0] register_1d__f2_in ,
input register_2d__f1_hw_wr[2],
input [15:0] register_2d__f1_in [2],
input register_2d__f2_hw_wr[2],
input [15:0] register_2d__f2_in [2],
input register_3d__f1_hw_wr[2][2],
input [15:0] register_3d__f1_in [2][2],
input register_3d__f2_hw_wr[2][2],
input [15:0] register_3d__f2_in [2][2],
// Outputs
output HREADYOUT ,
output HRESP ,
output [32-1:0] HRDATA ,
output [15:0] register_1d__f1_r,
output [15:0] register_1d__f2_r,
output [15:0] register_2d__f1_r[2],
output [15:0] register_2d__f2_r[2],
output [15:0] register_3d__f1_r[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
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