diff options
author | waker <wakeroid@gmail.com> | 2009-08-19 22:45:01 +0200 |
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committer | waker <wakeroid@gmail.com> | 2009-08-19 22:45:01 +0200 |
commit | 2f34377d0352ed5aae777f813bbbadcffacbb579 (patch) | |
tree | 17498521f4349cf16af4d47940bccb2885eb9727 /sid/sidplay-libs-2.1.0/resid/THANKS | |
parent | 49875b085e4c1fa6881a54b482e8439fc1c6daa9 (diff) |
passed make distcheck; 0.1.0 release
Diffstat (limited to 'sid/sidplay-libs-2.1.0/resid/THANKS')
-rw-r--r-- | sid/sidplay-libs-2.1.0/resid/THANKS | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/sid/sidplay-libs-2.1.0/resid/THANKS b/sid/sidplay-libs-2.1.0/resid/THANKS new file mode 100644 index 00000000..f65a075f --- /dev/null +++ b/sid/sidplay-libs-2.1.0/resid/THANKS @@ -0,0 +1,71 @@ +reSID was written by Dag Lem. + +The project was started after reading an interview with Bob Yannes, the +head engineer of the SID chip. This interview was done by Andreas Varga, +and can be found on his SID Homepage: +http://stud1.tuwien.ac.at/~e9426444/sidpage.html +The reverse engineering of the SID chip would not have been possible without +this interview. + +Also found on the SID Homepage is an examination of the SID noise waveform +written by Asger Alstrup. This article was of great help in reverse +engineering the complete algorithm for the noise waveform. + +Lars Haugseth has been invaluable in the testing of reSID. +In a matter of hours after hearing about my project, he had completed a 6510 +disassembler in Perl. The importance of this was not evident to me until the +next day when he had disassembled the music routine for "Outrun Remix" by +Geir Tjelta, made some changes to it, reassembled, and produced a file +containing 48K of SID register values. +The first tests of reSID were run on this file. +With an exceptional memory of Commodore 64 tunes Lars Haugseth has pointed +out several errors in reSID that are now corrected. + +Morten Rollan and Kåre Gunnar Nesheim have provided interesting and insightful +information regarding digital filters. Kåre Gunnar Nesheim has also kindly +provided a 1901 monitor and a C64C from his private computer museum. His C64C +was used to measure the MOS8580 filter cutoff characteristics. + +VICE has been an inspiration for this project, and testing of reSID has +been greatly simplified by VICEs -sounddev dump option. Teemu Rantanen +has written support for reSID in VICE, making it possible to choose at runtime +between his excellent SID emulation and, given enough CPU power, the reSID +emulator engine. Tibor Biczo, Andreas Boose, and André Fachat have provided +combined waveform samples for 6581 R1, R3, R4, and 8580 R5 SID chips. +The VICE home page is found at: +http://www.cs.cmu.edu/~dsladic/vice/ + +The author of SIDPLAY, Michael Schwendt, has implemented a patch to link +libsidplay with reSID. Using his excellent tune player he has pointed out +several bugs in reSID. He has also provided invaluable information related to +the bugs as basis for further investigation. Most notably, the infamous ADSR +delay bug, of which I was previously unaware, has finally been understood and +is now correctly implemented in reSID. The SIDPLAY home page is found at: +http://www.geocities.com/SiliconValley/Lakes/5147/ + +A bug report from Daniel Lacasse led to the discovery of a previously unknown +SID bug, the ADSR boundary bug. + +Anders Ødegård has explained aspects of analog electronics and audio +equipment. + +Bob Yannes has patiently answered questions and has provided lots of +technical information on the SID filter. Thank you Bob! + +Julius O. Smith III has provided much of the theoretical basis for the +audio resampling with his "Digital Audio Resampling Home Page": +http://www-ccrma.stanford.edu/~jos/resample/ + +Hársfalvi, Levente has made a thorough investigation of the DC levels +in the MOS6581 chip. His results are available in C= Hacking Issue #20, +and form the basis of DC corrections in reSID. Levente found that each +voice independently contributes to the DC level in the mixer. Note +that some of the conclusions in the article are incorrect, as the +maximum and minimum voice output levels are interchanged. + +The author of SIDPLAY2, Simon White, has given a lot of feedback on +reSID. Most importantly he found and fixed a bug in the fast clock +version of the ADSR emulation. + +Finally I would like to thank my business partner Stian W. Arnesen for +putting up with all this nonsense. |