X-Git-Url: https://git.ucc.asn.au/?p=ipdf%2Fcode.git;a=blobdiff_plain;f=src%2Fvfpu.h;h=12ac9bc389ffc0126ea668fc15c296a32d62a40f;hp=da130a4de174cf8b92b4a35bd82d9ebedf3dd967;hb=eff96d65bd1101083e04cb3ff2468b3feea3ff9e;hpb=1bab8e093f47967dc28a5a10030972407d7d0675

diff --git a/src/vfpu.h b/src/vfpu.h
index da130a4..12ac9bc 100644
--- a/src/vfpu.h
+++ b/src/vfpu.h
@@ -5,9 +5,11 @@
  * Implements a terrible and hacky interface to use a virtual FPU to do floating point operations
  */
 
+#include <bitset>
+
 namespace VFPU
 {
-	extern int Start(); // Starts the VFPU
+	extern int Start(const char * vcd_output = NULL); // Starts the VFPU
 	extern int Halt(); // Halts the VFPU
 
 /**
@@ -21,10 +23,11 @@ namespace VFPU
 		-- 111 = unused
  */
 	typedef enum {ADD=0x000, SUB=0x001, MULT=0x010, DIV=0x011, SQRT=0x100} Opcode;
-	typedef float Register;
+	typedef enum {EVEN=0x00, ZERO=0x01, UP=0x10, DOWN=0x11} Rmode;
+	typedef std::bitset<32> Register;
 	
-	extern Register Exec(const Register & a, const Register & b, Opcode op);
-
+	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
 }
 
 #endif //_VFPU_H