The final restructured version for automatic build using maven tycho

[Mograsim.git] / net.mograsim.machine / src / net / mograsim / machine / isa / AsmFloatOperand.java

diff --git a/net.mograsim.machine/src/net/mograsim/machine/isa/AsmFloatOperand.java b/net.mograsim.machine/src/net/mograsim/machine/isa/AsmFloatOperand.java
deleted file mode 100644 (file)
index 7a1a6eb..0000000
--- a/net.mograsim.machine/src/net/mograsim/machine/isa/AsmFloatOperand.java
+++ /dev/null
@@ -1,98 +0,0 @@
-package net.mograsim.machine.isa;
-
-import java.math.BigDecimal;
-import java.math.BigInteger;
-
-import net.mograsim.logic.core.types.Bit;
-import net.mograsim.logic.core.types.BitVector;
-import net.mograsim.logic.core.types.BitVector.BitVectorMutator;
-import net.mograsim.machine.isa.types.AsmNumberFormatException;
-
-public class AsmFloatOperand implements AsmOperand
-{
-       private final int size;
-       private final int mantissa;
-       private final int exponent;
-
-       public AsmFloatOperand(int size)
-       {
-               this.size = size;
-               switch (size)
-               {
-               case 8:
-                       exponent = 4;
-                       mantissa = 3;
-                       break;
-               case 16:
-                       exponent = 5;
-                       mantissa = 10;
-                       break;
-               case 32:
-                       exponent = 8;
-                       mantissa = 23;
-                       break;
-               case 64:
-                       exponent = 11;
-                       mantissa = 52;
-                       break;
-               case 128:
-                       exponent = 15;
-                       mantissa = 112;
-                       break;
-               default:
-                       if (size > 128 && size % 32 == 0)
-                       {
-                               exponent = (int) Math.round(Math.log(size) / Math.log(2)) - 13;
-                               mantissa = size - exponent - 1;
-                       } else
-                       {
-                               throw new IllegalArgumentException("Illegal floating point size: " + size);
-                       }
-               }
-       }
-
-       public AsmFloatOperand(int exponent, int mantissa)
-       {
-               if (exponent < 1 || mantissa < 1)
-                       throw new IllegalArgumentException("illegal floating point specification: e=" + exponent + ", m=" + mantissa);
-               this.exponent = exponent;
-               this.mantissa = mantissa;
-               this.size = exponent + mantissa + 1;
-       }
-
-       @Override
-       public int getSize()
-       {
-               return size;
-       }
-
-       @Override
-       public BitVector parse(String s) throws AsmNumberFormatException
-       {
-               String cleaned = s.replace("_", "").toLowerCase();
-               int len = cleaned.length();
-               BigInteger res;
-               try
-               {
-                       return bigDecToBitVector(new BigDecimal(cleaned));
-               }
-               catch (NumberFormatException e)
-               {
-                       throw new AsmNumberFormatException(e, "Error parsing %s: no valid float format", s);
-               }
-       }
-
-       BitVector bigDecToBitVector(BigDecimal bi) throws AsmNumberFormatException
-       {
-               BigInteger raw = bi.unscaledValue();
-               int mantLen = raw.bitLength();
-//             bi.
-               int bitLength = raw.bitLength() - (bi.signum() - 1) / 2;
-               if (bitLength > size)
-                       throw new AsmNumberFormatException("Error parsing %s: bit count %d exceeds size %d", bi, bitLength, size);
-               BitVectorMutator bvm = BitVectorMutator.ofLength(size);
-               for (int i = 0; i < size; i++)
-                       bvm.setLSBit(i, Bit.of(raw.testBit(i)));
-               return bvm.toBitVector();
-       }
-}