From: aho450s AT nic DOT smsu DOT edu (Tony O'Bryan) Newsgroups: comp.os.msdos.djgpp Subject: Re: Signed to Unsigned conversion Date: Tue, 14 Jan 1997 01:36:44 GMT Organization: Southwest Missouri State University Lines: 16 Message-ID: <32dae2ad.3337206@ursa.smsu.edu> References: <32d7b6c1 DOT 868084 AT ursa DOT smsu DOT edu> <5bdj8i$mlc AT grimsel DOT zurich DOT ibm DOT com> NNTP-Posting-Host: forseti.i79.smsu.edu To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp On 13 Jan 1997 15:10:10 GMT, semler AT raleigh DOT ibm DOT com wrote: >In <32d7b6c1 DOT 868084 AT ursa DOT smsu DOT edu>, aho450s AT nic DOT smsu DOT edu (Tony O'Bryan) writes: >>I want to learn the MOD format so I can write a MOD player that interfaces with >>Allegro's sound routines. I have the header decoded and the samples extracted, >>but can't figure out how to convert the signed MOD sample data to unsigned data >>suitable for playing on the Sound Blaster. Thanks for any help you can give. > >Add 0x80 to each samplebyte. > >Kind regards, Henning Semler Thank you very much. Sometimes I over-complicate procedures. :) Your suggestion worked perfectly.