efDataDiscreteRateMining standardDeviationMemoryDefinition.c 张婷 commit at 2020-10-21

efDataDiscreteRateMining/dataSharedMemory/standardDeviationMemoryDefinition.c

@@ -106,3 +106,62 @@ unsigned int PerformFLT(const unsigned int opcode)
 	if (roundData.exception)
 		float_raise(roundData.exception);
 
+	return 1;
+}
+
+unsigned int PerformFIX(const unsigned int opcode)
+{
+	FPA11 *fpa11 = GET_FPA11();
+	unsigned int Fn = getFm(opcode);
+	struct roundingData roundData;
+
+	roundData.mode = SetRoundingMode(opcode);
+	roundData.precision = SetRoundingPrecision(opcode);
+	roundData.exception = 0;
+
+	switch (fpa11->fType[Fn]) {
+	case typeSingle:
+		{
+			writeRegister(getRd(opcode), float32_to_int32(&roundData, fpa11->fpreg[Fn].fSingle));
+		}
+		break;
+
+	case typeDouble:
+		{
+			writeRegister(getRd(opcode), float64_to_int32(&roundData, fpa11->fpreg[Fn].fDouble));
+		}
+		break;
+
+#ifdef CONFIG_FPE_NWFPE_XP
+	case typeExtended:
+		{
+			writeRegister(getRd(opcode), floatx80_to_int32(&roundData, fpa11->fpreg[Fn].fExtended));
+		}
+		break;
+#endif
+
+	default:
+		return 0;
+	}
+
+	if (roundData.exception)
+		float_raise(roundData.exception);
+
+	return 1;
+}
+
+/* This instruction sets the flags N, Z, C, V in the FPSR. */
+static unsigned int PerformComparison(const unsigned int opcode)
+{
+	FPA11 *fpa11 = GET_FPA11();
+	unsigned int Fn = getFn(opcode), Fm = getFm(opcode);
+	int e_flag = opcode & 0x400000;	/* 1 if CxFE */
+	int n_flag = opcode & 0x200000;	/* 1 if CNxx */
+	unsigned int flags = 0;
+
+#ifdef CONFIG_FPE_NWFPE_XP
+	floatx80 rFn, rFm;
+
+	/* Check for unordered condition and convert all operands to 80-bit
+	   format.
+	   ?? Might be some mileage in avoiding this conversion if possible.