API tools faq
paste
Advertisement
Guest User

Untitled

a guest
Apr 24th, 2018
58
0
Never
Add comment
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
text 10.61 KB | None | 0 0
raw download clone embed print report
  1. module lab7_5(A,B, CARRY,ADDERS,WALLACE);
  2. input [7:0] A,B;
  3. output [15:0] CARRY,ADDERS,WALLACE;
  4.  
  5. multiplier_8bit_carry M0 (A, B, CARRY[15:0]);
  6. multiplier_8bit_adders M1 (A,B,ADDERS[15:0]);
  7. multiplier_8bit_wallace M2 (A,B,WALLACE[15:0]);
  8. endmodule
  9.  
  10. module fulladderr (a, b, ci, s, co);
  11. input a, b, ci;
  12. output co, s;
  13. wire d;
  14. assign d = a ^ b;
  15. assign s = d ^ ci;
  16. assign co = (b & ~d) | (d & ci);
  17. endmodule
  18.  
  19. module fulladder (sum,carry,a,b,cin);
  20. input a, b, cin;
  21. output carry, sum;
  22. wire d;
  23. assign d = a ^ b;
  24. assign sum = d ^ cin;
  25. assign carry = (b & ~d) | (d & cin);
  26. endmodule
  27. module halfadder (sum,carry,a,b);
  28. input a,b;
  29. output sum,carry;
  30. assign sum=a^b;
  31. assign carry=a&b;
  32. endmodule
  33.  
  34. module multiplier_8bit_carry (A, B, P);
  35. input [7:0] A, B;
  36. output [15:0] P;
  37.  
  38. wire c01, c02, c03, c04, c05, c06, c07, c08;
  39. wire s02, s03, s04, s05, s06, s07, s08;
  40.  
  41. wire c12, c13, c14, c15, c16, c17, c18, c19;
  42. wire s13, s14, s15, s16, s17, s18, s19;
  43.  
  44. wire c23, c24, c25, c26, c27, c28, c29, c20;
  45. wire s24, s25, s26, s27, s28, s29, s20;
  46.  
  47. wire c34, c35, c36, c37, c38, c39, c30, c31;
  48. wire s35, s36, s37, s38, s39, s30, s31;
  49.  
  50. wire c45, c46, c47, c48, c49, c40, c41, c42;
  51. wire s46, s47, s48, s49, s40, s41, s42;
  52.  
  53. wire c56, c57, c58, c59, c50, c51, c52, c53;
  54. wire s57, s58, s59, s50, s51, s52, s53;
  55.  
  56. wire c67, c68, c69, c60, c61, c62, c63, c64;
  57.  
  58. assign P[0] = A[0] & B[0];
  59.  
  60. fulladderr F01 (A[1] & B[0], A[0] & B[1], 0, P[1], c01);
  61. fulladderr F02 (A[2] & B[0], A[1] & B[1], c01, s02, c02);
  62. fulladderr F03 (A[3] & B[0], A[2] & B[1], c02, s03, c03);
  63. fulladderr F04 (A[4] & B[0], A[3] & B[1], c03, s04, c04);
  64. fulladderr F05 (A[5] & B[0], A[4] & B[1], c04, s05, c05);
  65. fulladderr F06 (A[6] & B[0], A[5] & B[1], c05, s06, c06);
  66. fulladderr F07 (A[7] & B[0], A[6] & B[1], c06, s07, c07);
  67. fulladderr F08 (0, A[7] & B[1], c07, s08, c08);
  68.  
  69. fulladderr F12 (s02, A[0] & B[2], 0, P[2], c12);
  70. fulladderr F13 (s03, A[1] & B[2], c12, s13, c13);
  71. fulladderr F14 (s04, A[2] & B[2], c13, s14, c14);
  72. fulladderr F15 (s05, A[3] & B[2], c14, s15, c15);
  73. fulladderr F16 (s06, A[4] & B[2], c15, s16, c16);
  74. fulladderr F17 (s07, A[5] & B[2], c16, s17, c17);
  75. fulladderr F18 (s08, A[6] & B[2], c17, s18, c18);
  76. fulladderr F19 (c08, A[7] & B[2], c18, s19, c19);
  77.  
  78. fulladderr F23 (s13, A[0] & B[3], 0, P[3], c23);
  79. fulladderr F24 (s14, A[1] & B[3], c23, s24, c24);
  80. fulladderr F25 (s15, A[2] & B[3], c24, s25, c25);
  81. fulladderr F26 (s16, A[3] & B[3], c25, s26, c26);
  82. fulladderr F27 (s17, A[4] & B[3], c26, s27, c27);
  83. fulladderr F28 (s18, A[5] & B[3], c27, s28, c28);
  84. fulladderr F29 (s19, A[6] & B[3], c28, s29, c29);
  85. fulladderr F20 (c19, A[7] & B[3], c29, s20, c20);
  86.  
  87. fulladderr F34 (s24, A[0] & B[4], 0, P[4], c34);
  88. fulladderr F35 (s25, A[1] & B[4], c34, s35, c35);
  89. fulladderr F36 (s26, A[2] & B[4], c35, s36, c36);
  90. fulladderr F37 (s27, A[3] & B[4], c36, s37, c37);
  91. fulladderr F38 (s28, A[4] & B[4], c37, s38, c38);
  92. fulladderr F39 (s29, A[5] & B[4], c38, s39, c39);
  93. fulladderr F30 (s20, A[6] & B[4], c39, s30, c30);
  94. fulladderr F31 (c20, A[7] & B[4], c30, s31, c31);
  95.  
  96. fulladderr F45 (s35, A[0] & B[5], 0, P[5], c45);
  97. fulladderr F46 (s36, A[1] & B[5], c45, s46, c46);
  98. fulladderr F47 (s37, A[2] & B[5], c46, s47, c47);
  99. fulladderr F48 (s38, A[3] & B[5], c47, s48, c48);
  100. fulladderr F49 (s39, A[4] & B[5], c48, s49, c49);
  101. fulladderr F40 (s30, A[5] & B[5], c49, s40, c40);
  102. fulladderr F41 (s31, A[6] & B[5], c40, s41, c41);
  103. fulladderr F42 (c31, A[7] & B[5], c41, s42, c42);
  104.  
  105. fulladderr F56 (s46, A[0] & B[6], 0, P[6], c56);
  106. fulladderr F57 (s47, A[1] & B[6], c56, s57, c57);
  107. fulladderr F58 (s48, A[2] & B[6], c57, s58, c58);
  108. fulladderr F59 (s49, A[3] & B[6], c58, s59, c59);
  109. fulladderr F50 (s40, A[4] & B[6], c59, s50, c50);
  110. fulladderr F51 (s41, A[5] & B[6], c50, s51, c51);
  111. fulladderr F52 (s42, A[6] & B[6], c51, s52, c52);
  112. fulladderr F53 (c42, A[7] & B[6], c52, s53, c53);
  113.  
  114. fulladderr F67 (s57, A[0] & B[7], 0, P[7 ], c67);
  115. fulladderr F68 (s58, A[1] & B[7], c67, P[8 ], c68);
  116. fulladderr F69 (s59, A[2] & B[7], c68, P[9 ], c69);
  117. fulladderr F60 (s50, A[3] & B[7], c69, P[10], c60);
  118. fulladderr F61 (s51, A[4] & B[7], c60, P[11], c61);
  119. fulladderr F62 (s52, A[5] & B[7], c61, P[12], c62);
  120. fulladderr F63 (s53, A[6] & B[7], c62, P[13], c63);
  121. fulladderr F64 (c53, A[7] & B[7], c63, P[14], P[15]);
  122. endmodule
  123.  
  124. module multiplier_8bit_adders (A, B, P);
  125. input [7:0] A, B;
  126. output [15:0] P;
  127.  
  128. wire [7:0] m[7:0];
  129. wire [7:0] s[1:7];
  130. wire cout[1:7];
  131.  
  132. assign m[0] = A & {8{B[0]}};
  133. assign m[1] = A & {8{B[1]}};
  134. assign m[2] = A & {8{B[2]}};
  135. assign m[3] = A & {8{B[3]}};
  136. assign m[4] = A & {8{B[4]}};
  137. assign m[5] = A & {8{B[5]}};
  138. assign m[6] = A & {8{B[6]}};
  139. assign m[7] = A & {8{B[7]}};
  140.  
  141. adder_N_bits #(8) ex1({1'b0,m[0][7:1]},m[1],1'b0,s[1],cout[1]);
  142. adder_N_bits #(8) ex2({cout[1],s[1][7:1]},m[2],1'b0,s[2],cout[2]);
  143. adder_N_bits #(8) ex3({cout[2],s[2][7:1]},m[3],1'b0,s[3],cout[3]);
  144. adder_N_bits #(8) ex4({cout[3],s[3][7:1]},m[4],1'b0,s[4],cout[4]);
  145. adder_N_bits #(8) ex5({cout[4],s[4][7:1]},m[5],1'b0,s[5],cout[5]);
  146. adder_N_bits #(8) ex6({cout[5],s[5][7:1]},m[6],1'b0,s[6],cout[6]);
  147. adder_N_bits #(8) ex7({cout[6],s[6][7:1]},m[7],1'b0,s[7],cout[7]);
  148.  
  149. assign P[0] = m[0][0];
  150. assign P[1] = s[1][0];
  151. assign P[2] = s[2][0];
  152. assign P[3] = s[3][0];
  153. assign P[4] = s[4][0];
  154. assign P[5] = s[5][0];
  155. assign P[6] = s[6][0];
  156. assign P[14:7] = s[7];
  157. assign P[15] = cout[7];
  158.  
  159. endmodule
  160.  
  161. module adder_N_bits #(parameter N=8)
  162. (input [N-1:0] A,B,
  163. input cin,
  164. output [N-1:0] S,
  165. output cout);
  166.  
  167. assign {cout,S} = A + B + cin;
  168.  
  169. endmodule
  170.  
  171. module multiplier_8bit_wallace (A, B, P);
  172. input [7:0] A, B;
  173. output reg [15:0] P;
  174.  
  175. reg p [7:0][7:0]; // array which stores the partial products
  176.  
  177. wire [55:0] s ,c ; //iintermediate sum and carry
  178.  
  179. integer i,j;
  180.  
  181. always@(A, B) //x is multiplicand AND y is multiplier
  182.  
  183. begin
  184.  
  185. for ( i = 0; i <= 7; i = i + 1)
  186.  
  187. for ( j = 0; j <= 7; j = j + 1)
  188.  
  189. p[j][i] <= A[j] & B[i];
  190.  
  191. end
  192.  
  193. halfadder ha_11 ( (s[0]), (c[0]), (p[1][0]), ( p[0][1])); //P1
  194. fulladder fa_21 ( (s[1]), (c[1]), (p[2][0]), ( p[1][1]), ( (c[0]) ) );
  195. halfadder ha_21 ( (s[2]), (c[2]), (p[0][2]), ( s[1])); //P2
  196. fulladder fa_31 ( (s[3]), (c[3]), (p[3][0]), ( p[2][1]), ( c[1]) );
  197. fulladder fa_32 ( (s[4]), (c[4]), (p[1][2]), ( s[3]), ( c[2]) );
  198. halfadder ha_31 ( (s[5]), (c[5]), (p[0][3]), ( s[4])); //P3
  199. fulladder fa_41 ( (s[6]), (c[6]), (p[4][0]), ( p[3][1]), ( c[3]) );
  200. fulladder fa_42 ( (s[7]), (c[7]), (p[2][2]), (s[6]), ( c[4]) );
  201. fulladder fa_43 ( (s[8]), (c[8]), (p[1][3]), (s[7]), ( c[5]) );
  202. halfadder ha_41 ( (s[9]), (c[9]), (p[0][4]), ( s[8])); //P4
  203. fulladder fa_51 ( (s[10]), (c[10]), (p[5][0]), ( p[4][1]), ( c[6]) );
  204. fulladder fa_52 ( (s[11]), (c[11]), (p[3][2]), ( s[10]), ( c[7]) );
  205. fulladder fa_53 ( (s[12]), (c[12]), (p[2][3]), ( s[11]), ( c[8]) );
  206. fulladder fa_54 ( (s[13]), (c[13]), (p[1][4]), ( s[12]), ( c[9]) );
  207. halfadder ha_55 ( (s[14]), (c[14]), (p[0][4]), ( s[13])); //P5
  208. fulladder fa_61 ( (s[15]), (c[15]), (p[6][0]), ( p[5][1]), ( c[10]) );
  209. fulladder fa_62 ( (s[16]), (c[16]), (p[4][2]), ( s[15]), ( c[11]) );
  210. fulladder fa_63 ( (s[17]), (c[17]), (p[3][3]), ( s[16]), ( c[12]) );
  211. fulladder fa_64 ( (s[18]), (c[18]), (p[2][4]), ( s[17]), ( c[13]) );
  212. halfadder ha_61 ( (s[19]), (c[19]), (p[1][5]), ( s[18]));
  213. halfadder ha_42 ( (s[20]), (c[20]), (p[0][6]), ( s[19])); //P6
  214. fulladder fa_71 ( (s[21]), (c[21]), (p[7][0]), ( p[6][1]), ( c[15]) );
  215. fulladder fa_72 ( (s[22]), (c[22]), (p[5][2]), ( s[21]), ( c[16]) );
  216. fulladder fa_73 ( (s[23]), (c[23]), (p[4][3]), ( s[22]), ( c[17]) );
  217. fulladder fa_74 ( (s[24]), (c[24]), (p[3][4]), ( s[23]), ( c[18]) );
  218. fulladder fa_75 ( (s[25]), (c[25]), (p[2][5]), ( s[24]), ( c[19]) );
  219. fulladder fa_76 ( (s[26]), (c[26]), (p[1][6]), ( s[25]), ( c[20]) );
  220. halfadder ha_71 ( (s[27]), (c[27]), (p[0][7]), ( s[26])); //P7
  221. fulladder fa_81 ( (s[28]), (c[28]), (p[7][1]), ( p[6][2]), ( c[21]) );
  222. fulladder fa_82 ( (s[29]), (c[29]), (p[5][3]), ( s[28]), ( c[22]) );
  223. fulladder fa_83 ( (s[30]), (c[30]), (p[4][4]), ( s[29]), ( c[23]) );
  224. fulladder fa_84 ( (s[31]), (c[31]), (p[3][5]), ( s[30]), ( c[24]) );
  225. fulladder fa_85 ( (s[32]), (c[32]), (p[2][6]), ( s[31]), ( c[25]) );
  226. fulladder fa_86 ( (s[33]), (c[33]), (p[1][7]), ( s[32]), ( c[26]) );
  227. halfadder ha_81 ( (s[34]), (c[34]), (s[33]), ( c[27])); //P8
  228. fulladder fa_91 ( (s[35]), (c[35]), (p[7][2]), ( p[6][3]), ( c[28]) );
  229. fulladder fa_92 ( (s[36]), (c[36]), (p[5][4]), ( s[35]), ( c[29]) );
  230. fulladder fa_93 ( (s[37]), (c[37]), (p[4][5]), ( s[36]), ( c[30]) );
  231. fulladder fa_94 ( (s[38]), (c[38]), (p[3][6]), ( s[37]), ( c[31]) );
  232. fulladder fa_95 ( (s[39]), (c[39]), (p[2][7]), ( s[38]), ( c[32]) );
  233. fulladder fa_96 ( (s[40]), (c[40]), (s[39]), ( c[33]), ( c[34]) ); //P9
  234. fulladder fa_101 ( (s[41]), (c[41]), (p[7][3]), ( p[6][4]), ( c[35]) );
  235. fulladder fa_102 ( (s[42]), (c[42]), (p[5][5]), ( s[41]), ( c[36]) );
  236. fulladder fa_103 ( (s[43]), (c[43]), (p[4][6]), ( s[42]), ( c[37]) );
  237. fulladder fa_104 ( (s[44]), (c[44]), (p[3][7]), ( s[43]), ( c[38]) );
  238. fulladder fa_105 ( (s[45]), (c[45]), (s[44]), ( c[39]), ( c[40]) ); //P10
  239. fulladder fa_111 ( (s[46]), (c[46]), (p[7][4]), ( p[6][5]), ( c[41]) );
  240. fulladder fa_112 ( (s[47]), (c[47]), (p[5][6]), ( s[46]), ( c[42]) );
  241. fulladder fa_113 ( (s[48]), (c[48]), (p[4][7]), ( s[47]), ( c[43]) );
  242. fulladder fa_114 ( (s[49]), (c[49]), (s[48]), ( c[44]), ( c[45]) ); //P11
  243. fulladder fa_121 ( (s[50]), (c[50]), (p[7][5]), ( p[6][6]), ( c[46]) );
  244. fulladder fa_122 ( (s[51]), (c[51]), (p[5][7]), (s[50]), ( c[47]) );
  245. fulladder fa_123 ( (s[52]), (c[52]), (s[51]), (c[48]), ( c[49]) ); //P12
  246. fulladder fa_131 ( (s[53]), (c[53]), (p[7][6]), ( p[6][7]), ( c[50]) );
  247. fulladder fa_132 ( (s[54]), (c[54]), (s[53]), (c[51]), ( c[52]) ); //P13
  248. fulladder fa_141 ( (s[55]), (c[55]), (p[7][7]), (c[53]), ( c[54]) ); //P14
  249.  
  250. always@(*)
  251. P <= {c[55],s[55],s[54],s[52],s[49],s[45],s[40],s[34],s[27],s[20],s[14],s[9],s[5],s[2],s[0],p[0][0]}; //p[0][0]=P0
  252.  
  253.  
  254. endmodule
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement
Public Pastes
Advertisement
We use cookies for various purposes including analytics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy.  OK, I Understand
Not a member of Pastebin yet?
Sign Up, it unlocks many cool features!