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problem with ReadByte() function
Posted: Sat May 03, 2003 10:36 am
by patrick88
if you would read a value superior at 127, the function ReadByte()
take a négative value . 8O
for example reading 128 take -128, cool
my solution :
Code: Select all
octet = ReadByte()
If octet<0
octet = 128+(128+octet)
EndIf
enjoy
Posted: Sat May 03, 2003 11:07 am
by GPI
No bug or something like this.
Bytes are signed, so they have a range from -128 to 127
to convert them to 0 to 256, simple use this
b.b=-100
l.l=b&$ff
Posted: Sun May 04, 2003 7:38 pm
by Danilo
Thats exactly what patrick88 wanted to say
Posted: Sun May 04, 2003 7:52 pm
by GPI
Danilo wrote:
Thats exactly what patrick88 wanted to say
No it isn't.
and & operation is shorter to write and should be faster than an if and add.
Posted: Sun May 04, 2003 9:44 pm
by Danilo
You dont get it, GPI - as always... :roll:
Posted: Sun May 04, 2003 11:16 pm
by GPI
Yes i like you too.