Algorithmus zum Umrechnen Hex->Real (80Bit mit Vorz) gesucht

[Garfield]

Moin,

ich will die Daten einer Binärdatei auslesen. Die 8-, 16- und 32-Bit-Zahlen funktionieren mit StrToInt, aber mehr geht da nicht. Die Suche hilft bei diesem vorzeichenbehafteten Datentyp mit 80-Bit nicht weiter. Ein paar Zahlenbeispiele:

Code:

00 00 00 00 00 00 00 A0 03 C0 =  -20
00 00 00 00 00 00 00 F0 02 C0 =  -15
00 00 00 00 00 00 00 A0 02 C0 =  -10
00 00 00 00 00 00 00 A0 01 C0 =   -5
00 00 00 00 00 00 00 80 01 C0 =   -4
00 00 00 00 00 00 00 C0 00 C0 =   -3
00 00 00 00 00 00 00 80 00 C0 =   -2
00 00 00 00 00 00 00 80 FF BF =   -1
00 00 00 00 00 00 00 00 00 00 =    0
00 00 00 00 00 00 00 80 FF 3F =    1
00 00 00 00 00 00 00 80 00 40 =    2
00 00 00 00 00 00 00 C0 00 40 =    3
00 00 00 00 00 00 00 80 01 40 =    4
00 00 00 00 00 00 00 A0 01 40 =    5
00 00 00 00 00 00 00 A0 02 40 =   10
00 00 00 00 00 00 00 F0 02 40 =   15
00 00 00 00 00 00 00 A0 03 40 =   20
00 00 00 00 00 00 00 F0 03 40 =   30
00 00 00 00 00 00 00 A0 04 40 =   40
00 00 00 00 00 00 00 C8 04 40 =   50
00 00 00 00 00 00 00 CA 04 40 =   50.5
33 33 33 33 33 33 33 CA 04 40 =   50.55
52 B8 1E 85 EB 51 38 CA 04 40 =   50.555
00 00 00 00 00 00 00 C8 05 40 =  100
00 00 00 00 00 00 00 96 06 40 =  150
00 00 00 00 00 00 00 C8 06 40 =  200
00 00 00 00 00 00 00 96 07 40 =  300

Vielleicht kennt hier jemand eine Lösung.