don't use assign keywords

Objective:To implement a Verilog gate level model for $32-$bit Signed multiplier.

Outcome:Gate level implementation for the following components.

MULT$32\_$U MULT$32$ MUX$32\_2$x$1$

Instruction: Complete gate level description of following components in mux.v file.

MUX$1\_2$x$1$ MUX$32\_2$x$1$

Complete gate level description of following components in mult.v file

MULT$32\_$U MULT$32$

Compile entire Project$03$ and simulate following modules in ModelSim simulator.

MUX$32\_2$x$1\_$TB MULT$\_$U$\_$TB MULT$\_$TB

Observe corresponding outcomes on waveform windows and fix any issue.

Each testbench will generate corresponding output file.

OUTPUT$/$mux$32\_2$x$1\_$tb$.$out OUTPUT$/$mult$32\_$u$\_$tb$.$out

OUTPUT$/$mult$32\_$tb$.$out

Add more testing in these testbenches to make sure outcome is correct.

MUX.V file

$//32-$bit mux

module MUX$32\_2$xl$($Y$,$ I$0,$ I$1,$ S$)$;

$//$ output list

output $[31$:$0]$ Y;

$//$input list

input $[31$:$0]$ I$0$;

input $[31$:$0]$ I$1$;

input S;

$//$ TBD

endmodule

$//1-$bit mux

module MUX$1\_2$x$1($Y$,$I$0,$ I$1,$ S$)$;

$//$output list

output Y;

$//$input list

input I$0,$ I$1,$ S;

$//$ TBD

endmodule

MULT.V file

"include $"$prj$\_$definition.v$"$

module MULT$32($HI$,$ LO$,$ A$,$ B$)$ ;

$//$ output list

output $[31$:$0]$ HI;

output $[31$:$0]$ LO;

$//$ input list

input $[31$:$0]$ A;

input $[31$:$0]$ B;

$//$ TBD

$|$

endmodule

module MULT$32\_$U$($HI$,$ LO$,$ A$,$ B$)$;

$//$ output list

output $[31$:$0]$ HI;

output $[31$:$0]$ LO;

$//$ input list

input $[31$:$0]$ A;

input $[31$:$0]$ B;

$//$ TBD

endmodule

this should be the output $//$ memory data file $($do not edit the following line $-$ required

for mem load use$)$

$//$ instance$=/$MULT$\_$TB$/$result

$//$ format$=$hex addressradix$=$h dataradix$=$h version$=1\mathrm{.}0$ wordsperline$=1$ noaddress

$00000000000000$c$8$

$000000000000002$d

ffffffffffffff$90$

ffffffffffffff$42$

$3100000000000000$

cf$00000000000000$

cf$00000000000000$

$3100000000000000$

$//$ instance$=/$MULT$\_$U$\_$TB$/$result

$//$ format$=$hex addressradix$=$h dataradix$=$h version$=1\mathrm{.}0$ wordsperline$=1$ noaddress

$00000000000000$c$8$

$000000000000002$d

$0000000000000070$

$00000000000000$be

$3100000000000000$

$//$ instance$=/$MUX$32\_2$x$1\_$TB$/$result

$//$ format$=$hex addressradix$=$h dataradix$=$h version$=1\mathrm{.}0$ wordsperline$=1$ noaddress

a$5$a$5$a$5$a$5$

$5$a$5$a$5$a$5$a