net.mograsim.machine/test/net/mograsim/machine/standard/memory/WordAddressableMemoryTest.java

   1 package net.mograsim.machine.standard.memory;\r
   2 \r
   3 import static org.junit.jupiter.api.Assertions.assertEquals;\r
   4 \r
   5 import java.math.BigInteger;\r
   6 import java.util.Random;\r
   7 \r
   8 import org.junit.jupiter.api.Test;\r
   9 \r
  10 import net.mograsim.logic.core.timeline.Timeline;\r
  11 import net.mograsim.logic.core.types.Bit;\r
  12 import net.mograsim.logic.core.types.BitVector;\r
  13 import net.mograsim.logic.core.wires.Wire;\r
  14 import net.mograsim.logic.core.wires.Wire.ReadWriteEnd;\r
  15 import net.mograsim.machine.DefaultMainMemoryDefinition;\r
  16 \r
  17 class WordAddressableMemoryTest {\r
  18         \r
  19         private Timeline t = new Timeline(10);\r
  20 \r
  21         @Test\r
  22         public void wordAddressableMemoryLargeTest()\r
  23         {\r
  24                 Wire rW = new Wire(t, 1, 2);\r
  25                 Wire data = new Wire(t, 16, 2);\r
  26                 Wire address = new Wire(t, 64, 2);\r
  27                 ReadWriteEnd rWI = rW.createReadWriteEnd();\r
  28                 ReadWriteEnd dataI = data.createReadWriteEnd();\r
  29                 ReadWriteEnd addressI = address.createReadWriteEnd();\r
  30 \r
  31                 WordAddressableMemoryComponent memory = new WordAddressableMemoryComponent(t, 4, new DefaultMainMemoryDefinition(64, 16, 4096L, Long.MAX_VALUE), data.createReadWriteEnd(),\r
  32                                 rW.createReadOnlyEnd(), address.createReadOnlyEnd());\r
  33 \r
  34                 Random r = new Random();\r
  35                 for (long j = 1; j > 0; j *= 2)\r
  36                 {\r
  37                         for (int i = 0; i < 50; i++)\r
  38                         {\r
  39                                 String sAddress = String.format("%64s", BigInteger.valueOf(4096 + i + j).toString(2)).replace(' ', '0');\r
  40                                 sAddress = new StringBuilder(sAddress).reverse().toString();\r
  41                                 BitVector bAddress = BitVector.parse(sAddress);\r
  42                                 addressI.feedSignals(bAddress);\r
  43                                 t.executeAll();\r
  44                                 String random = BigInteger.valueOf(Math.abs(r.nextInt())).toString(5);\r
  45                                 random = random.substring(Integer.max(0, random.length() - 16));\r
  46                                 random = String.format("%16s", random).replace(' ', '0');\r
  47                                 random = random.replace('2', 'X').replace('3', 'Z').replace('4', 'U');\r
  48                                 BitVector vector = BitVector.parse(random);\r
  49                                 dataI.feedSignals(vector);\r
  50                                 rWI.feedSignals(Bit.ZERO);\r
  51                                 t.executeAll();\r
  52                                 rWI.feedSignals(Bit.ONE);\r
  53                                 t.executeAll();\r
  54                                 dataI.clearSignals();\r
  55                                 t.executeAll();\r
  56 \r
  57                                 assertEquals(dataI.getValues(), vector);\r
  58                         }\r
  59                 }\r
  60         }\r
  61 \r
  62 }\r