3 * @brief Implements a terrible and hacky interface to use a virtual FPU to do floating point operations
12 extern int Start(const char * vcd_output = NULL); // Starts the VFPU
13 extern int Halt(); // Halts the VFPU
14 typedef enum {ADD=0x000, SUB=0x001, MULT=0x010, DIV=0x011, SQRT=0x100} Opcode;
15 typedef enum {EVEN=0x00, ZERO=0x01, UP=0x10, DOWN=0x11} Rmode; // Rounding mode; to even, towards zero, always up, always down
16 typedef std::bitset<32> Register;
17 extern Register Exec(const Register & a, const Register & b, Opcode op, Rmode rmode = EVEN); // operate with registers
18 extern float Exec(float a, float b, Opcode op, Rmode rmode = EVEN); //converts floats into registers and back