X-Git-Url: https://mograsim.net/gitweb/?a=blobdiff_plain;f=net.mograsim.machine%2Fsrc%2Fnet%2Fmograsim%2Fmachine%2Fisa%2FAsmFloatOperand.java;fp=net.mograsim.machine%2Fsrc%2Fnet%2Fmograsim%2Fmachine%2Fisa%2FAsmFloatOperand.java;h=0000000000000000000000000000000000000000;hb=7d05144c25daa53e60fc9ed9fd503546a86567f8;hp=7a1a6ebf2ba0354e9e4581b6ae9c79098f9a6b65;hpb=8bed58cd47f4e53a0a83e066d38864aa6875502f;p=Mograsim.git

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
index 7a1a6ebf..00000000
--- 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();
-	}
-}