From: Sam Moore <matches@ucc.asn.au>
Date: Tue, 29 Jul 2014 14:36:53 +0000 (+0800)
Subject: Add VFPU::Float (but it is broken)
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=29f315953466e71fc76b1b05c79c1231e5c83074;p=ipdf%2Fcode.git

Add VFPU::Float (but it is broken)

Fails every single realops test.
Also it's stuck at 32 bits still.
---

diff --git a/src/real.h b/src/real.h
index 798ea0b..4b2db1c 100644
--- a/src/real.h
+++ b/src/real.h
@@ -7,7 +7,7 @@
 #define REAL_SINGLE 0
 #define REAL_DOUBLE 1
 #define REAL_LONG_DOUBLE 2
-#define REAL_SINGLE_FAST2SUM 3 //TODO: Remove, is FITH
+#define REAL_VFPU 3
 #define REAL_RATIONAL 4
 #define REAL_RATIONAL_ARBINT 5
 
@@ -15,9 +15,9 @@
 	#error "REAL was not defined!"
 #endif
 
-#if REAL >= REAL_SINGLE_FAST2SUM
-	#include "real_fast2sum.h"
-#endif //REAL
+#if REAL == REAL_VFPU
+	#include "vfpu.h"
+#endif
 
 #if REAL == REAL_RATIONAL
 	#include "rational.h"
@@ -39,8 +39,8 @@ namespace IPDF
 	typedef double Real;
 #elif REAL == REAL_LONG_DOUBLE
 	typedef long double Real;
-#elif REAL == REAL_SINGLE_FAST2SUM
-	typedef RealF2S<float> Real;
+#elif REAL == REAL_VFPU
+	typedef VFPU::Float Real;
 	inline float Float(const Real & r) {return r.m_value;}
 	inline double Double(const Real & r) {return r.m_value;}
 #elif REAL == REAL_RATIONAL
diff --git a/src/vfpu.cpp b/src/vfpu.cpp
index 18e1bde..b59fe3e 100644
--- a/src/vfpu.cpp
+++ b/src/vfpu.cpp
@@ -21,7 +21,7 @@ using namespace std;
 
 namespace VFPU
 {
-
+	
 static const char g_fpu[] = "vfpu";
 
 static bool g_running = false;
@@ -114,10 +114,9 @@ float Exec(float opa, float opb, Opcode op, Rmode rmode)
 Register Exec(const Register & a, const Register &  b, Opcode op, Rmode rmode)
 {
 	assert(g_running);
-	Fatal("Unsupported");	
 	stringstream s;
-	//TODO: Make it compile again
-	//s << hex << setw(8) << setfill('0') << a.to_ullong() << "\n" << b.to_ullong() << "\n" << setw(1) << op <<"\n" << setw(1) << rmode << "\n";
+	//TODO: Make it compile on non C++11
+	s << hex << setw(8) << setfill('0') << a.to_ullong() << "\n" << b.to_ullong() << "\n" << setw(1) << op <<"\n" << setw(1) << rmode << "\n";
 	string str(s.str());
 	//Debug("Writing: %s", str.c_str());
 
@@ -139,8 +138,8 @@ Register Exec(const Register & a, const Register &  b, Opcode op, Rmode rmode)
 	}
 	
 	stringstream s2;
-	//TODO: Make it comp[ile again
-	//s2 << hex << result.to_ullong();
+	//TODO: Make it compile on non C++11
+	s2 << hex << result.to_ullong();
 	//Debug("Result is: %s", s2.str().c_str());
 	return result;
 }
diff --git a/src/vfpu.h b/src/vfpu.h
index d77c1e3..04de136 100644
--- a/src/vfpu.h
+++ b/src/vfpu.h
@@ -16,6 +16,81 @@ namespace VFPU
 	typedef std::bitset<32> Register;
 	extern Register Exec(const Register & a, const Register & b, Opcode op, Rmode rmode = EVEN); // operate with registers
 	extern float Exec(float a, float b, Opcode op, Rmode rmode = EVEN); //converts floats into registers and back
+	
+	class Float
+	{
+		public:
+			Float(float f = 0) : m_value(f) 
+			{
+				static bool init = false;
+				if (!init)
+				{
+					init = true;
+					VFPU::Start();
+				}
+			}
+			Float(const Float & cpy) : m_value(cpy.m_value) {}
+			virtual ~Float() 
+			{
+
+			}
+			
+			Float & operator+=(const Float & op)
+			{
+				m_value = Exec(m_value, op.m_value, ADD);
+				return *this;
+			}
+			Float & operator-=(const Float & op)
+			{
+				m_value = Exec(m_value, op.m_value, SUB);
+				return *this;
+			}
+			Float & operator*=(const Float & op)
+			{
+				m_value = Exec(m_value, op.m_value, MULT);
+				return *this;
+			}
+			Float & operator/=(const Float & op)
+			{
+				m_value = Exec(m_value, op.m_value, DIV);
+				return *this;
+			}
+			
+			Float operator+(const Float & op) const {Float f(*this); f+=op; return f;}
+			Float operator-(const Float & op) const {Float f(*this); f-=op; return f;}
+			Float operator*(const Float & op) const {Float f(*this); f*=op; return f;}
+			Float operator/(const Float & op) const {Float f(*this); f/=op; return f;}
+			
+			bool operator==(const Float & op) const
+			{
+				Float f(op);
+				f -= *this;
+				return (f.m_value == 0);				
+			}
+			bool operator!=(const Float & op) const {return !this->operator==(op);}
+			bool operator<(const Float & op) const
+			{
+				Float f(op);
+				f -= *this;
+				return (f.m_value > 0);
+			}
+			bool operator<=(const Float & op) const
+			{
+				Float f(op);
+				f -= *this;
+				return (f.m_value >= 0);				
+			}
+			bool operator>(const Float & op) const {return !this->operator<=(op);}
+			bool operator>=(const Float & op) const {return !this->operator<(op);}
+			
+			float m_value;
+			
+	};
+	
+	inline Float pow(const Float & a, const Float & b)
+	{
+		return Float(pow(a.m_value, b.m_value));
+	}
 }
 
 #endif //_VFPU_H