$date Sat Dec 14 04:55:25 2024 $end $version Icarus Verilog $end $timescale 1s $end $scope module subtractionTB $end $var wire 1 ! overflow $end $var wire 5 " Y [4:0] $end $var reg 4 # A [3:0] $end $var reg 4 $ B [3:0] $end $scope module uut $end $var wire 4 % A [3:0] $end $var wire 4 & B [3:0] $end $var wire 4 ' xB [3:0] $end $var wire 1 ( overflow $end $var wire 5 ) notB [4:0] $end $var wire 5 * Y1 [4:0] $end $var wire 5 + Y [4:0] $end $scope module a1 $end $var wire 4 , A [3:0] $end $var wire 4 - B [3:0] $end $var wire 5 . Y [4:0] $end $var wire 4 / Carry4 [3:0] $end $scope module f1 $end $var wire 1 0 A $end $var wire 1 1 B $end $var wire 1 2 Carry $end $var wire 1 3 CarryO $end $var wire 1 4 xor1 $end $var wire 1 5 and2 $end $var wire 1 6 and1 $end $var wire 1 7 Sum $end $scope module h1 $end $var wire 1 0 A $end $var wire 1 1 B $end $var wire 1 6 Carry $end $var wire 1 4 Sum $end $upscope $end $scope module h2 $end $var wire 1 4 A $end $var wire 1 2 B $end $var wire 1 5 Carry $end $var wire 1 7 Sum $end $upscope $end $upscope $end $scope module f2 $end $var wire 1 8 A $end $var wire 1 9 B $end $var wire 1 : Carry $end $var wire 1 ; CarryO $end $var wire 1 < xor1 $end $var wire 1 = and2 $end $var wire 1 > and1 $end $var wire 1 ? Sum $end $scope module h1 $end $var wire 1 8 A $end $var wire 1 9 B $end $var wire 1 > Carry $end $var wire 1 < Sum $end $upscope $end $scope module h2 $end $var wire 1 < A $end $var wire 1 : B $end $var wire 1 = Carry $end $var wire 1 ? Sum $end $upscope $end $upscope $end $scope module f3 $end $var wire 1 @ A $end $var wire 1 A B $end $var wire 1 B Carry $end $var wire 1 C CarryO $end $var wire 1 D xor1 $end $var wire 1 E and2 $end $var wire 1 F and1 $end $var wire 1 G Sum $end $scope module h1 $end $var wire 1 @ A $end $var wire 1 A B $end $var wire 1 F Carry $end $var wire 1 D Sum $end $upscope $end $scope module h2 $end $var wire 1 D A $end $var wire 1 B B $end $var wire 1 E Carry $end $var wire 1 G Sum $end $upscope $end $upscope $end $scope module h1 $end $var wire 1 H A $end $var wire 1 I B $end $var wire 1 J Carry $end $var wire 1 K Sum $end $upscope $end $upscope $end $scope module a2 $end $var wire 4 L A [3:0] $end $var wire 4 M B [3:0] $end $var wire 5 N Y [4:0] $end $var wire 4 O Carry4 [3:0] $end $scope module f1 $end $var wire 1 P A $end $var wire 1 Q B $end $var wire 1 R Carry $end $var wire 1 S CarryO $end $var wire 1 T xor1 $end $var wire 1 U and2 $end $var wire 1 V and1 $end $var wire 1 W Sum $end $scope module h1 $end $var wire 1 P A $end $var wire 1 Q B $end $var wire 1 V Carry $end $var wire 1 T Sum $end $upscope $end $scope module h2 $end $var wire 1 T A $end $var wire 1 R B $end $var wire 1 U Carry $end $var wire 1 W Sum $end $upscope $end $upscope $end $scope module f2 $end $var wire 1 X A $end $var wire 1 Y B $end $var wire 1 Z Carry $end $var wire 1 [ CarryO $end $var wire 1 \ xor1 $end $var wire 1 ] and2 $end $var wire 1 ^ and1 $end $var wire 1 _ Sum $end $scope module h1 $end $var wire 1 X A $end $var wire 1 Y B $end $var wire 1 ^ Carry $end $var wire 1 \ Sum $end $upscope $end $scope module h2 $end $var wire 1 \ A $end $var wire 1 Z B $end $var wire 1 ] Carry $end $var wire 1 _ Sum $end $upscope $end $upscope $end $scope module f3 $end $var wire 1 ` A $end $var wire 1 a B $end $var wire 1 b Carry $end $var wire 1 c CarryO $end $var wire 1 d xor1 $end $var wire 1 e and2 $end $var wire 1 f and1 $end $var wire 1 g Sum $end $scope module h1 $end $var wire 1 ` A $end $var wire 1 a B $end $var wire 1 f Carry $end $var wire 1 d Sum $end $upscope $end $scope module h2 $end $var wire 1 d A $end $var wire 1 b B $end $var wire 1 e Carry $end $var wire 1 g Sum $end $upscope $end $upscope $end $scope module h1 $end $var wire 1 h A $end $var wire 1 i B $end $var wire 1 j Carry $end $var wire 1 k Sum $end $upscope $end $upscope $end $scope module od1 $end $var wire 4 l A [3:0] $end $var wire 1 m AandSum $end $var wire 4 n B [3:0] $end $var wire 5 o Y [4:0] $end $var wire 1 p detect1 $end $var wire 1 q detect2 $end $var wire 1 r opC $end $var wire 2 s opCode [1:0] $end $var wire 1 ( overflowDetect $end $var wire 1 t sign1 $end $var wire 1 u sign2 $end $var wire 1 v sign3 $end $var wire 1 w sign4 $end $upscope $end $upscope $end $upscope $end $enddefinitions $end #0 $dumpvars 1w 0v 0u 0t b10 s 1r 1q 1p b10001 o b100 n 1m b101 l 1k 0j 0i 1h 0g 0f 1e 1d 1c 1b 1a 0` 0_ 1^ 0] 0\ 1[ 0Z 1Y 1X 0W 0V 0U 0T 0S 0R 0Q 0P bz100 O b10001 N b1100 M b101 L 0K 1J 1I 1H 1G 0F 0E 1D 0C 0B 0A 1@ 1? 0> 0= 0< 0; 1: 09 08 07 06 15 14 13 12 01 10 bz011 / b1100 . b1 - b1011 , b1 + b10001 * b1100 ) 1( b1011 ' b100 & b101 % b100 $ b101 # b1 " 1! $end #5 0Y 0W 0? 0T 0: 1i 0Q 03 02 b1001 M 05 07 bz000 / 0J b1001 ) b1001 . 1K 04 b10001 " b10001 + 0b 0! 0( 0H 00 bz000 O 0[ 0_ 0e 0g 0q b1000 ' b1000 , b10001 * b10001 N b10001 o 1k 0^ 0\ 1f 0d 0m 1v 0h 0X 1` b111 $ b111 & b111 n b1000 # b1000 % b1000 L b1000 l #10 1B 1; 0Z 1= 0S 0b 1: 0U 0[ 13 0T 0^ 15 0i 0Q 0Y 1a 12 b1000 M 07 0? 1G bz111 / 1J b1000 ) b1000 . 0K 14 1< 0D 0W b1101 " b1101 + 0! 0( 1H 10 18 0@ 0R 1_ 0c 1g 0q b111 ' b111 , bz000 O 0j b1101 * b1101 N b1101 o 1k 1\ 0f 1d 0m 1h 1X 0` b1000 $ b1000 & b1000 n b101 # b101 % b101 L b101 l #15