net.mograsim.logic.model.am2900/test/net/mograsim/logic/model/am2900/am2904/TestableAm2904.java

   1 package net.mograsim.logic.model.am2900.am2904;\r
   2 \r
   3 import java.util.Collections;\r
   4 import java.util.HashMap;\r
   5 import java.util.Map;\r
   6 \r
   7 import net.mograsim.logic.model.am2900.TestableCircuit;\r
   8 \r
   9 public interface TestableAm2904 extends TestableCircuit\r
  10 {\r
  11 \r
  12         void setInstruction(Am2904_Inst inst);\r
  13 \r
  14         void setCarry(Am2904_Carry carry);\r
  15 \r
  16         void setShiftCode(String val_4_bit);\r
  17 \r
  18         void setI10(Am2904_ShiftDir dir);\r
  19 \r
  20         void setCX(String val_1_bit);\r
  21 \r
  22         void setY3(String val_1_bit);\r
  23 \r
  24         void setIZ(String val_1_bit);\r
  25 \r
  26         void setIC(String val_1_bit);\r
  27 \r
  28         void setIOVR(String val_1_bit);\r
  29 \r
  30         void setIN(String val_1_bit);\r
  31 \r
  32         default void setI(String z_c_ovr_n)\r
  33         {\r
  34                 setIZ(z_c_ovr_n.substring(0, 1));\r
  35                 setIC(z_c_ovr_n.substring(1, 2));\r
  36                 setIOVR(z_c_ovr_n.substring(2, 3));\r
  37                 setIN(z_c_ovr_n.substring(3, 4));\r
  38         }\r
  39 \r
  40         void set_CEM(String val_1_bit);\r
  41 \r
  42         void set_CEµ(String val_1_bit);\r
  43 \r
  44         void set_OEY(String val_1_bit);\r
  45 \r
  46         void set_OECT(String val_1_bit);\r
  47 \r
  48         void set_SE(String val_1_bit);\r
  49 \r
  50         void set_EZ(String val_1_bit);\r
  51 \r
  52         void set_EC(String val_1_bit);\r
  53 \r
  54         void set_EOVR(String val_1_bit);\r
  55 \r
  56         void set_EN(String val_1_bit);\r
  57 \r
  58         default void set_E(String z_c_ovr_n)\r
  59         {\r
  60                 set_EZ(z_c_ovr_n.substring(0, 1));\r
  61                 set_EC(z_c_ovr_n.substring(1, 2));\r
  62                 set_EOVR(z_c_ovr_n.substring(2, 3));\r
  63                 set_EN(z_c_ovr_n.substring(3, 4));\r
  64         }\r
  65 \r
  66         void setSIO0(String val_1_bit);\r
  67 \r
  68         void setSIO3(String val_1_bit);\r
  69 \r
  70         void setQIO0(String val_1_bit);\r
  71 \r
  72         void setQIO3(String val_1_bit);\r
  73 \r
  74         String getC0();\r
  75 \r
  76         String getCT();\r
  77 \r
  78         String getY3();\r
  79 \r
  80         String getSIO0();\r
  81 \r
  82         String getSIO3();\r
  83 \r
  84         String getQIO0();\r
  85 \r
  86         String getQIO3();\r
  87 \r
  88         public enum Am2904_ShiftDir\r
  89         {\r
  90                 RIGHT, LEFT;\r
  91         }\r
  92 \r
  93         public enum Am2904_Carry\r
  94         {\r
  95                 CI0, CI1, CX, USE_SR;\r
  96         }\r
  97 \r
  98         /**\r
  99          * Pattern:<br>\r
 100          * [microSR]_[machineSR]_[condCodeSource]_[condCode]<br>\r
 101          * <ul>\r
 102          * <li>Load = load from I inputs (Am2904s)</li>\r
 103          * <li>condCodeSource = µ, M, I (and a special case: I and M)</li>\r
 104          * <li>condCode = the boolean term defining the CT output</li>\r
 105          * </ul>\r
 106          */\r
 107         public enum Am2904_Inst\r
 108         {\r
 109                 // @formatter:off\r
 110                 LoadM_LoadY_µ_NxorOVRorZ(0_00),\r
 111                 Set_Set_µ_NxnorOVRornotZ(0_01),\r
 112                 Swap_Swap_µ_NxorOVR(0_02),\r
 113                 Reset_Reset_µ_NxnorOVR(0_03),\r
 114                 Load_LoadForShiftThroughOvr_µ_Z(0_04),\r
 115                 Load_Invert_µ_notZ(0_05),\r
 116                 LoadOvrRetain_Load_µ_OVR(0_06),\r
 117                 LoadOvrRetain_Load_µ_notOVR(0_07),\r
 118                 ResetZ_LoadCarryInvert_µ_CorZ(0_10),\r
 119                 SetZ_LoadCarryInvert_µ_notCandnotZ(0_11),\r
 120                 ResetC_Load_µ_C(0_12),\r
 121                 SetC_Load_µ_notC(0_13),\r
 122                 ResetN_Load_µ_notCorZ(0_14),\r
 123                 SetN_Load_µ_CandnotZ(0_15),\r
 124                 ResetOvr_Load_IM_NxorN(0_16),\r
 125                 SetOvr_Load_IM_NxnorN(0_17),\r
 126                 Load_Load_µ_NxorOVRorZ(0_20),\r
 127                 Load_Load_µ_NxnorOVRornotZ(0_21),\r
 128                 Load_Load_µ_NxorOVR(0_22),\r
 129                 Load_Load_µ_NxnorOVR(0_23),\r
 130                 Load_Load_µ_Z(0_24),\r
 131                 Load_Load_µ_notZ(0_25),\r
 132                 Load_Load_µ_OVR(0_26),\r
 133                 Load_Load_µ_notOVR(0_27),\r
 134                 LoadCarryInvert_LoadCarryInvert_µ_CorZ(0_30),\r
 135                 LoadCarryInvert_LoadCarryInvert_µ_notCandnotZ(0_31),\r
 136                 Load_Load_µ_C(0_32),\r
 137                 Load_Load_µ_notC(0_33),\r
 138                 Load_Load_µ_notCorZ(0_34),\r
 139                 Load_Load_µ_CandnotZ(0_35),\r
 140                 Load_Load_µ_N(0_36),\r
 141                 Load_Load_µ_notN(0_37),\r
 142                 Load_Load_M_NxorOVRorZ(0_40),\r
 143                 Load_Load_M_NxnorOVRornotZ(0_41),\r
 144                 Load_Load_M_NxorOVR(0_42),\r
 145                 Load_Load_M_NxnorOVR(0_43),\r
 146                 Load_Load_M_Z(0_44),\r
 147                 Load_Load_M_notZ(0_45),\r
 148                 Load_Load_M_OVR(0_46),\r
 149                 Load_Load_M_notOVR(0_47),\r
 150                 LoadCarryInvert_LoadCarryInvert_M_CorZ(0_50),\r
 151                 LoadCarryInvert_LoadCarryInvert_M_notCandnotZ(0_51),\r
 152                 Load_Load_M_C(0_52),\r
 153                 Load_Load_M_notC(0_53),\r
 154                 Load_Load_M_notCorZ(0_54),\r
 155                 Load_Load_M_CandnotZ(0_55),\r
 156                 Load_Load_M_N(0_56),\r
 157                 Load_Load_M_notN(0_57),\r
 158                 Load_Load_I_NxorOVRorZ(0_60),\r
 159                 Load_Load_I_NxnorOVRornotZ(0_61),\r
 160                 Load_Load_I_NxorOVR(0_62),\r
 161                 Load_Load_I_NxnorOVR(0_63),\r
 162                 Load_Load_I_Z(0_64),\r
 163                 Load_Load_I_notZ(0_65),\r
 164                 Load_Load_I_OVR(0_66),\r
 165                 Load_Load_I_notOVR(0_67),\r
 166                 LoadCarryInvert_LoadCarryInvert_I_notCorZ(0_70),\r
 167                 LoadCarryInvert_LoadCarryInvert_I_CandnotZ(0_71),\r
 168                 Load_Load_I_C(0_72),\r
 169                 Load_Load_I_notC(0_73),\r
 170                 Load_Load_I_notCorZ(0_74),\r
 171                 Load_Load_I_CandnotZ(0_75),\r
 172                 Load_Load_I_N(0_76),\r
 173                 Load_Load_I_notN(0_77);\r
 174                 // @formatter:on\r
 175 \r
 176                 public final int code;\r
 177 \r
 178                 private Am2904_Inst(int code)\r
 179                 {\r
 180                         this.code = code;\r
 181                 }\r
 182 \r
 183                 private static final Map<Integer, Am2904_Inst> instCodes;\r
 184 \r
 185                 static\r
 186                 {\r
 187                         Map<Integer, Am2904_Inst> instCodesMod = new HashMap<>();\r
 188                         Am2904_Inst[] vals = values();\r
 189                         for (Am2904_Inst inst : vals)\r
 190                         {\r
 191                                 assert inst.code == inst.ordinal();\r
 192                                 instCodesMod.put(inst.code, inst);\r
 193                         }\r
 194                         if (instCodesMod.size() != 64)\r
 195                                 throw new IllegalStateException("There must be exactly 64 Am2904 instruction codes, but was " + instCodesMod.size());\r
 196                         instCodes = Collections.unmodifiableMap(instCodesMod);\r
 197                 }\r
 198 \r
 199                 public static Am2904_Inst getInstFor(int I_543210)\r
 200                 {\r
 201                         Am2904_Inst inst = instCodes.get(I_543210);\r
 202                         if (inst != null)\r
 203                                 return inst;\r
 204                         throw new IllegalArgumentException("Invaild Am2904 instruction code: " + I_543210);\r
 205                 }\r
 206 \r
 207                 public int getBlock()\r
 208                 {\r
 209                         return code >> 4;\r
 210                 }\r
 211 \r
 212                 public boolean isLoadCarryInvert()\r
 213                 {\r
 214                         return (code & 0b001_110) == 0b001_000;\r
 215                 }\r
 216         }\r
 217 }\r