From: Sam Moore <matches@ucc.asn.au>
Date: Fri, 11 Apr 2014 09:31:41 +0000 (+0800)
Subject: Remove REAL_HALF as it doesn't actually implement a half precision float
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=9fb7c94d259a623a5cad36f8ccb6f8a49f21cf52;p=ipdf%2Fcode.git

Remove REAL_HALF as it doesn't actually implement a half precision float

More to it than just masking bits because the sizes of the exponent differ.
Could just mask bits in the mantissa but I have horrible plans involving VFPU...
---

diff --git a/.gitignore b/.gitignore
index 365a631..da6ac03 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@
 *.test
 *.out
 *.err
+*.vcd
diff --git a/src/real.h b/src/real.h
index 5703671..73aca6d 100644
--- a/src/real.h
+++ b/src/real.h
@@ -16,41 +16,7 @@ namespace IPDF
 #elif defined REAL_DOUBLE
 	typedef double Real;
 	inline double Float(Real r) {return r;}
-#elif defined REAL_HALF
-	struct Real
-	{
-		Real() = default;
-		Real(double r) : value(r) 
-		{
-			int & a = *((int*)(&value)); // um...
-			// mask out extra bits in exponent
-			 //1000 1111 1000 0000 0000 0011 1111 1111
-			// Endianness matters
-			a &= 0xFFC001F1; //0x8F8003FF;
-
-		}	
-	
-		Real operator+(float f) const {return Real(value+f);}
-		Real operator-(float f) const {return Real(value+f);}
-		Real operator/(float f) const {return Real(value/f);}
-		Real operator*(float f) const {return Real(value*f);}
-		Real operator+(const Real & r) const {return Real(this->value + r.value);}
-		Real operator-(const Real & r) const {return Real(this->value - r.value);}
-		Real operator*(const Real & r) const {return Real(this->value * r.value);}
-		Real operator/(const Real & r) const {return Real(this->value / r.value);}
-		Real & operator+=(const Real & r) {this->value += r.value; return *this;}
-		Real & operator-=(const Real & r) {this->value -= r.value; return *this;}
-		Real & operator/=(const Real & r) {this->value /= r.value; return *this;}
-		Real & operator*=(const Real & r) {this->value *= r.value; return *this;}
-
-		float value;
-	};
-	inline float Float(Real r) {return r.value;}
-
-	inline std::ostream & operator<<(std::ostream & os, Real & r) {return os << r.value;} // yuk
-
-#endif //REAL_HALF
-
+#endif
 }
 
 #endif //_REAL_H
diff --git a/src/tests/vfpufloat.cpp b/src/tests/vfpufloat.cpp
index 5f89a66..dae457b 100644
--- a/src/tests/vfpufloat.cpp
+++ b/src/tests/vfpufloat.cpp
@@ -6,7 +6,10 @@ using namespace std;
 
 int main(int argc, char ** argv)
 {
-	VFPU::Start();
+	if (argc > 1)
+		VFPU::Start(argv[1]);
+	else
+		VFPU::Start();
 	float result = VFPU::Exec(25,10, VFPU::SUB);
 	Debug("%f\n", result);
 	VFPU::Halt();