1<?xml version="1.0" encoding="utf-8"?> 2<circuit> 3 <version>1</version> 4 <attributes> 5 <entry> 6 <string>Description</string> 7 <string>4-bit ripple carry adder, consisting of four full adders. 8{{de 4-Bit Ripple-Carry addierer bestehend aus vier 9Volladdierern.}}</string> 10 </entry> 11 </attributes> 12 <visualElements> 13 <visualElement> 14 <elementName>XOr</elementName> 15 <elementAttributes/> 16 <pos x="-200" y="340"/> 17 </visualElement> 18 <visualElement> 19 <elementName>And</elementName> 20 <elementAttributes/> 21 <pos x="-200" y="260"/> 22 </visualElement> 23 <visualElement> 24 <elementName>And</elementName> 25 <elementAttributes/> 26 <pos x="-80" y="360"/> 27 </visualElement> 28 <visualElement> 29 <elementName>XOr</elementName> 30 <elementAttributes/> 31 <pos x="-80" y="440"/> 32 </visualElement> 33 <visualElement> 34 <elementName>In</elementName> 35 <elementAttributes> 36 <entry> 37 <string>Label</string> 38 <string>C_-1</string> 39 </entry> 40 </elementAttributes> 41 <pos x="-260" y="480"/> 42 </visualElement> 43 <visualElement> 44 <elementName>Or</elementName> 45 <elementAttributes/> 46 <pos x="20" y="280"/> 47 </visualElement> 48 <visualElement> 49 <elementName>In</elementName> 50 <elementAttributes> 51 <entry> 52 <string>Label</string> 53 <string>A_0</string> 54 </entry> 55 <entry> 56 <string>Default</string> 57 <int>1</int> 58 </entry> 59 <entry> 60 <string>InDefault</string> 61 <value v="1" z="false"/> 62 </entry> 63 </elementAttributes> 64 <pos x="-260" y="260"/> 65 </visualElement> 66 <visualElement> 67 <elementName>In</elementName> 68 <elementAttributes> 69 <entry> 70 <string>Label</string> 71 <string>B_0</string> 72 </entry> 73 </elementAttributes> 74 <pos x="-260" y="380"/> 75 </visualElement> 76 <visualElement> 77 <elementName>Out</elementName> 78 <elementAttributes> 79 <entry> 80 <string>Label</string> 81 <string>S_0</string> 82 </entry> 83 </elementAttributes> 84 <pos x="120" y="460"/> 85 </visualElement> 86 <visualElement> 87 <elementName>XOr</elementName> 88 <elementAttributes/> 89 <pos x="-200" y="40"/> 90 </visualElement> 91 <visualElement> 92 <elementName>And</elementName> 93 <elementAttributes/> 94 <pos x="-200" y="-40"/> 95 </visualElement> 96 <visualElement> 97 <elementName>And</elementName> 98 <elementAttributes/> 99 <pos x="-80" y="60"/> 100 </visualElement> 101 <visualElement> 102 <elementName>XOr</elementName> 103 <elementAttributes/> 104 <pos x="-80" y="140"/> 105 </visualElement> 106 <visualElement> 107 <elementName>Or</elementName> 108 <elementAttributes/> 109 <pos x="20" y="-20"/> 110 </visualElement> 111 <visualElement> 112 <elementName>In</elementName> 113 <elementAttributes> 114 <entry> 115 <string>Label</string> 116 <string>A_1</string> 117 </entry> 118 </elementAttributes> 119 <pos x="-260" y="-40"/> 120 </visualElement> 121 <visualElement> 122 <elementName>In</elementName> 123 <elementAttributes> 124 <entry> 125 <string>Label</string> 126 <string>B_1</string> 127 </entry> 128 <entry> 129 <string>Default</string> 130 <int>1</int> 131 </entry> 132 <entry> 133 <string>InDefault</string> 134 <value v="1" z="false"/> 135 </entry> 136 </elementAttributes> 137 <pos x="-260" y="80"/> 138 </visualElement> 139 <visualElement> 140 <elementName>Out</elementName> 141 <elementAttributes> 142 <entry> 143 <string>Label</string> 144 <string>S_1</string> 145 </entry> 146 </elementAttributes> 147 <pos x="120" y="160"/> 148 </visualElement> 149 <visualElement> 150 <elementName>XOr</elementName> 151 <elementAttributes/> 152 <pos x="-200" y="-260"/> 153 </visualElement> 154 <visualElement> 155 <elementName>And</elementName> 156 <elementAttributes/> 157 <pos x="-200" y="-340"/> 158 </visualElement> 159 <visualElement> 160 <elementName>And</elementName> 161 <elementAttributes/> 162 <pos x="-80" y="-240"/> 163 </visualElement> 164 <visualElement> 165 <elementName>XOr</elementName> 166 <elementAttributes/> 167 <pos x="-80" y="-160"/> 168 </visualElement> 169 <visualElement> 170 <elementName>Or</elementName> 171 <elementAttributes/> 172 <pos x="20" y="-320"/> 173 </visualElement> 174 <visualElement> 175 <elementName>In</elementName> 176 <elementAttributes> 177 <entry> 178 <string>Label</string> 179 <string>A_2</string> 180 </entry> 181 <entry> 182 <string>InDefault</string> 183 <value v="1" z="false"/> 184 </entry> 185 </elementAttributes> 186 <pos x="-260" y="-340"/> 187 </visualElement> 188 <visualElement> 189 <elementName>In</elementName> 190 <elementAttributes> 191 <entry> 192 <string>Label</string> 193 <string>B_2</string> 194 </entry> 195 <entry> 196 <string>Default</string> 197 <int>1</int> 198 </entry> 199 </elementAttributes> 200 <pos x="-260" y="-220"/> 201 </visualElement> 202 <visualElement> 203 <elementName>Out</elementName> 204 <elementAttributes> 205 <entry> 206 <string>Label</string> 207 <string>S_2</string> 208 </entry> 209 </elementAttributes> 210 <pos x="120" y="-140"/> 211 </visualElement> 212 <visualElement> 213 <elementName>XOr</elementName> 214 <elementAttributes/> 215 <pos x="-200" y="-560"/> 216 </visualElement> 217 <visualElement> 218 <elementName>And</elementName> 219 <elementAttributes/> 220 <pos x="-200" y="-640"/> 221 </visualElement> 222 <visualElement> 223 <elementName>And</elementName> 224 <elementAttributes/> 225 <pos x="-80" y="-540"/> 226 </visualElement> 227 <visualElement> 228 <elementName>XOr</elementName> 229 <elementAttributes/> 230 <pos x="-80" y="-460"/> 231 </visualElement> 232 <visualElement> 233 <elementName>Out</elementName> 234 <elementAttributes> 235 <entry> 236 <string>Label</string> 237 <string>C_3</string> 238 </entry> 239 </elementAttributes> 240 <pos x="120" y="-600"/> 241 </visualElement> 242 <visualElement> 243 <elementName>Or</elementName> 244 <elementAttributes/> 245 <pos x="20" y="-620"/> 246 </visualElement> 247 <visualElement> 248 <elementName>In</elementName> 249 <elementAttributes> 250 <entry> 251 <string>Label</string> 252 <string>A_3</string> 253 </entry> 254 <entry> 255 <string>Default</string> 256 <int>1</int> 257 </entry> 258 </elementAttributes> 259 <pos x="-260" y="-640"/> 260 </visualElement> 261 <visualElement> 262 <elementName>In</elementName> 263 <elementAttributes> 264 <entry> 265 <string>Label</string> 266 <string>B_3</string> 267 </entry> 268 <entry> 269 <string>InDefault</string> 270 <value v="1" z="false"/> 271 </entry> 272 </elementAttributes> 273 <pos x="-260" y="-520"/> 274 </visualElement> 275 <visualElement> 276 <elementName>Out</elementName> 277 <elementAttributes> 278 <entry> 279 <string>Label</string> 280 <string>S_3</string> 281 </entry> 282 </elementAttributes> 283 <pos x="120" y="-440"/> 284 </visualElement> 285 <visualElement> 286 <elementName>Testcase</elementName> 287 <elementAttributes> 288 <entry> 289 <string>Testdata</string> 290 <testData> 291 <dataString># complete test of all 512 possible additions 292C_-1 A_3 A_2 A_1 A_0 B_3 B_2 B_1 B_0 C_3 S_3 S_2 S_1 S_0 293loop(A,16) 294 loop(B,16) 2950 bits(4,A) bits(4,B) bits(5,A+B) 2961 bits(4,A) bits(4,B) bits(5,A+B+1) 297 end loop 298end loop</dataString> 299 </testData> 300 </entry> 301 </elementAttributes> 302 <pos x="240" y="420"/> 303 </visualElement> 304 </visualElements> 305 <wires> 306 <wire> 307 <p1 x="-240" y="260"/> 308 <p2 x="-220" y="340"/> 309 </wire> 310 <wire> 311 <p1 x="-220" y="300"/> 312 <p2 x="-240" y="380"/> 313 </wire> 314 <wire> 315 <p1 x="-120" y="360"/> 316 <p2 x="-100" y="440"/> 317 </wire> 318 <wire> 319 <p1 x="-100" y="400"/> 320 <p2 x="-120" y="480"/> 321 </wire> 322 <wire> 323 <p1 x="-240" y="-40"/> 324 <p2 x="-220" y="40"/> 325 </wire> 326 <wire> 327 <p1 x="-220" y="0"/> 328 <p2 x="-240" y="80"/> 329 </wire> 330 <wire> 331 <p1 x="-120" y="60"/> 332 <p2 x="-100" y="140"/> 333 </wire> 334 <wire> 335 <p1 x="-100" y="100"/> 336 <p2 x="-120" y="180"/> 337 </wire> 338 <wire> 339 <p1 x="-240" y="-340"/> 340 <p2 x="-220" y="-260"/> 341 </wire> 342 <wire> 343 <p1 x="-220" y="-300"/> 344 <p2 x="-240" 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605 </wire> 606 <wire> 607 <p1 x="-280" y="-120"/> 608 <p2 x="-120" y="-120"/> 609 </wire> 610 <wire> 611 <p1 x="-120" y="-120"/> 612 <p2 x="-80" y="-120"/> 613 </wire> 614 <wire> 615 <p1 x="-100" y="440"/> 616 <p2 x="-80" y="440"/> 617 </wire> 618 <wire> 619 <p1 x="-280" y="-380"/> 620 <p2 x="140" y="-380"/> 621 </wire> 622 <wire> 623 <p1 x="-140" y="60"/> 624 <p2 x="-120" y="60"/> 625 </wire> 626 <wire> 627 <p1 x="-120" y="60"/> 628 <p2 x="-80" y="60"/> 629 </wire> 630 <wire> 631 <p1 x="-260" y="380"/> 632 <p2 x="-240" y="380"/> 633 </wire> 634 <wire> 635 <p1 x="-20" y="380"/> 636 <p2 x="0" y="380"/> 637 </wire> 638 <wire> 639 <p1 x="-240" y="380"/> 640 <p2 x="-200" y="380"/> 641 </wire> 642 <wire> 643 <p1 x="-140" y="-320"/> 644 <p2 x="20" y="-320"/> 645 </wire> 646 <wire> 647 <p1 x="-260" y="-640"/> 648 <p2 x="-240" y="-640"/> 649 </wire> 650 <wire> 651 <p1 x="-240" y="-640"/> 652 <p2 x="-200" y="-640"/> 653 </wire> 654 <wire> 655 <p1 x="0" y="320"/> 656 <p2 x="0" y="380"/> 657 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