net.mograsim.logic.ui.am2900/test/net/mograsim/logic/ui/am2900/Am2901Test.java

   1 package net.mograsim.logic.ui.am2900;
   2
   3 import static net.mograsim.logic.ui.am2900.TestableAm2901.Am2901_Dest.*;
   4 import static net.mograsim.logic.ui.am2900.TestableAm2901.Am2901_Func.*;
   5 import static net.mograsim.logic.ui.am2900.TestableAm2901.Am2901_Src.*;
   6 import static org.junit.jupiter.api.Assertions.assertEquals;
   7
   8 import org.junit.jupiter.api.BeforeEach;
   9 import org.junit.jupiter.api.Test;
  10
  11 import net.mograsim.logic.ui.am2900.TestableAm2901.Result;
  12
  13 public class Am2901Test
  14 {
  15         private TestableAm2901 am2901;
  16
  17         @BeforeEach
  18         void initialize()
  19         {
  20                 createAndSetup();
  21                 setRegistersToZero();
  22         }
  23
  24         @Test
  25         void testInit()
  26         {
  27                 assertEquals("0", am2901.getCarryOut());
  28                 assertEquals("0", am2901.getOverflow());
  29                 assertEquals("0", am2901.getSign());
  30                 assertEquals("1", am2901.getZero());
  31                 assertEquals("0000", am2901.getY());
  32                 assertEquals("0", am2901.getQ_0());
  33                 assertEquals("0", am2901.getQ_3());
  34                 assertEquals("0", am2901.getRAM_0());
  35                 assertEquals("0", am2901.getRAM_3());
  36         }
  37
  38         void createAndSetup()
  39         {
  40                 am2901 = new TestableAm2901Impl();
  41                 am2901.setup();
  42         }
  43
  44         void setRegistersToZero()
  45         {
  46                 setInputsToZero();
  47                 for (Regsiter r : Regsiter.values())
  48                 {
  49                         setRegisterToZero(r);
  50                 }
  51         }
  52
  53         void setRegisterToZero(Regsiter r)
  54         {
  55                 System.out.println("Setting reg " + r + " to zero");
  56                 am2901.setD("0000");
  57                 am2901.setSrc(DZ);
  58                 am2901.setFunc(AND);
  59                 if (r == Regsiter.Q)
  60                 {
  61                         am2901.setDest(QREG);
  62                 } else
  63                 {
  64                         am2901.setReg_B(r.toBitString());
  65                         am2901.setDest(RAMF);
  66                 }
  67                 assertRunSuccess();
  68                 am2901.toogleClock();
  69                 assertRunSuccess();
  70                 am2901.toogleClock();
  71                 assertRunSuccess();
  72         }
  73
  74         void setInputsToZero()
  75         {
  76                 am2901.setCarryIn("0");
  77                 am2901.setQ_0("0");
  78                 am2901.setQ_3("0");
  79                 am2901.setRAM_0("0");
  80                 am2901.setRAM_3("0");
  81                 am2901.setReg_A("0000");
  82                 am2901.setReg_B("0000");
  83                 am2901.setD("0000");
  84                 am2901.setSrc(AB);
  85                 am2901.setFunc(ADD);
  86                 am2901.setDest(QREG);
  87 //              am2901.setNotOutEnable("0"); TODO
  88                 assertRunSuccess();
  89         }
  90
  91         void assertRunSuccess()
  92         {
  93                 assertEquals(Result.SUCCESS, am2901.run());
  94         }
  95
  96         public enum Regsiter
  97         {
  98                 r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, rA, rB, rC, rD, rE, rF, Q;
  99
 100                 public String toBitString()
 101                 {
 102                         if (this.ordinal() > 0xF)
 103                                 throw new UnsupportedOperationException();
 104                         return TestUtil.to4bitBin(this.ordinal());
 105                 }
 106         }
 107 }