- bug fixes and improvements

modbus.c

@@ -18,67 +18,9 @@ is not changed, i.e. an existing errCode is not overwritten.
 #include <math.h>
 #include "sics.h"
 #include "modbus.h"
+#include "cnvrt.h"
 
 
-/*-------------------------------------------------------------------------*/
-static void double2ieee(double input, char ieee[4])
-{
-
-/* convert double to IEEE 32 bit floating number (denormalized numbers are considered as zero) */
-
-  long mantissa;
-  int exponent;
-
-  if (input == 0) {
-    ieee[0] = 0;
-    ieee[1] = 0;
-    ieee[2] = 0;
-    ieee[3] = 0;
-  } else {
-    mantissa = 0x1000000 * (frexp(fabs(input), &exponent));
-    exponent = exponent - 1 + 127;
-    if (exponent < 0) {
-      exponent = 0;
-    } else if (exponent > 0xFE) {
-      exponent = 0xFE;
-    }
-    if (input < 0) {
-      ieee[0] = 0x80 | (exponent >> 1);
-    } else {
-      ieee[0] = exponent >> 1;
-    }
-    ieee[1] = (exponent & 1) << 7 | ((mantissa & 0x7F0000) >> 16);
-    ieee[2] = (mantissa & 0xFF00) >> 8;
-    ieee[3] = mantissa & 0xFF;
-  }
-  return;
-}
-
-/*-------------------------------------------------------------------------*/
-static double ieee2double(char ieee[4])
-{
-
-/* IEEE 32 bit floating number to double (denormalized numbers are considered as zero) */
-
-  long mantissa;
-  double output;
-  int exponent;
-
-  mantissa = ((ieee[1] << 16) & 0x7FFFFF)
-      | ((ieee[2] << 8) & 0xFF00)
-      | ((ieee[3]) & 0xFF);
-
-  exponent = (ieee[0] & 0x7F) * 2 + ((ieee[1] >> 7) & 1);       /* raw exponent */
-  if (exponent == 0 && mantissa == 0) {
-    return 0.0;
-  }
-  output = ldexp(mantissa, -23) + 1.0;
-  if (ieee[0] & 0x80) {
-    output = -output;
-  }
-  return output * ldexp(1, exponent - 127);
-}
-
 /*----------------------------------------------------------------------------*/
 static void uint2word(unsigned int adr, char word[2])
 {