Yuri Tatishchev
5a4b5a312a
Gate level implementation for the following components: - MULT32_U - MULT32 - MUX32_2x1
89 lines
2.1 KiB
Verilog
89 lines
2.1 KiB
Verilog
// Name: mult_tb.v
|
|
// Module: MULT_U_TB, MULT_TB
|
|
//
|
|
// Notes: - Testbench for multiplier
|
|
//
|
|
// Revision History:
|
|
//
|
|
// Version Date Who email note
|
|
//------------------------------------------------------------------------------------------
|
|
// 1.0 Sep 10, 2014 Kaushik Patra kpatra@sjsu.edu Initial creation
|
|
//------------------------------------------------------------------------------------------
|
|
`include "../prj_definition.v"
|
|
|
|
module MULT_U_TB;
|
|
// driver
|
|
reg [`DATA_INDEX_LIMIT:0] A;
|
|
reg [`DATA_INDEX_LIMIT:0] B;
|
|
|
|
// outputs to observe
|
|
wire [`DATA_INDEX_LIMIT:0] HI, LO;
|
|
|
|
// result registers
|
|
integer i;
|
|
reg [`DOUBLE_DATA_INDEX_LIMIT:0] result[0:4];
|
|
|
|
MULT32_U mult32_u_inst_0(.HI(HI), .LO(LO), .A(A), .B(B));
|
|
|
|
initial
|
|
begin
|
|
i=0;
|
|
A=10; B=20; // Y = 10 * 20 = 200
|
|
#1 result[i] = {HI,LO}; i=i+1;
|
|
#1 A=3; B=15; // Y = 3 * 15 = 45
|
|
#1 result[i] = {HI,LO}; i=i+1;
|
|
#1 A=16; B=7; // Y = 16 * 7 = 112
|
|
#1 result[i] = {HI,LO}; i=i+1;
|
|
#1 A=10; B=19; // Y = 10 * 19 = 190
|
|
#1 result[i] = {HI,LO}; i=i+1;
|
|
#1 A=32'h00d96027; B=32'h7c32b43c; // Y = 0x0d96027 * 0x7c32b43c = 0x 006975a0 b62bf524
|
|
#1 result[i] = {HI,LO}; i=i+1;
|
|
#1 A=32'h70000000; B=32'h70000000;
|
|
#1 result[i] = {HI,LO}; i=i+1;
|
|
#1
|
|
$writememh("./OUTPUT/mult32_u_tb.out", result);
|
|
$stop;
|
|
end
|
|
|
|
endmodule
|
|
|
|
module MULT_TB;
|
|
// driver
|
|
reg [`DATA_INDEX_LIMIT:0] A;
|
|
reg [`DATA_INDEX_LIMIT:0] B;
|
|
|
|
// outputs to observe
|
|
wire [`DATA_INDEX_LIMIT:0] HI, LO;
|
|
|
|
// result registers
|
|
integer i;
|
|
reg [`DOUBLE_DATA_INDEX_LIMIT:0] result[0:7];
|
|
|
|
MULT32 mult32_inst_0(.HI(HI), .LO(LO), .A(A), .B(B));
|
|
|
|
initial
|
|
begin
|
|
i=0;
|
|
A=10; B=20; // Y = 10 * 20 = 200
|
|
#1 result[i] = {HI,LO}; i=i+1;
|
|
#1 A=-3; B=-15; // Y = 3 * 15 = 45
|
|
#1 result[i] = {HI,LO}; i=i+1;
|
|
#1 A=-16; B=7; // Y = 16 * 7 = -112
|
|
#1 result[i] = {HI,LO}; i=i+1;
|
|
#1 A=10; B=-19; // Y = 10 * 19 = -190
|
|
#1 result[i] = {HI,LO}; i=i+1;
|
|
#1 A=32'h70000000; B=32'h70000000;
|
|
#1 result[i] = {HI,LO}; i=i+1;
|
|
#1 A=32'h90000000; B=32'h70000000;
|
|
#1 result[i] = {HI,LO}; i=i+1;
|
|
#1 A=32'h70000000; B=32'h90000000;
|
|
#1 result[i] = {HI,LO}; i=i+1;
|
|
#1 A=32'h90000000; B=32'h90000000;
|
|
#1 result[i] = {HI,LO}; i=i+1;
|
|
#1
|
|
$writememh("./OUTPUT/mult32_tb.out", result);
|
|
$stop;
|
|
end
|
|
|
|
endmodule
|