Description:
Discussion about Commodore micros.
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A long time ago on a computer far far away...
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When I used to use the C64 and the Atari 800xl I like to write programs to draw circles using sin, cos tan and so forth. After 20+ years I just can't seem to remember how I did it. I do know I would know the start and end angle (0 - 359) or degree I wanted on the circle, the center of the circle and the diameter (or is radius) and... more »
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Where's the Amiga?
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I subscribed to two Amiga-related newsgroups: comp.sys.amiga and aus.computers.amiga. The former is discontinued, and the latter has little activity. What happened? Isn't the Amiga the *best* 16-bit computer ever created? I *really* want to create some Amiga games and perhaps other software and have some questions. :)... more »
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Official FAQ comp.binaries.cbm (semimonthly posting)
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COMP.BINARIES.CBM Official Frequently Asked Questions (FAQ) 4.10 written by Cameron Kaiser <ckai...@floodgap.com> based on documents by William Ward and Michael Miller ** START OF INTENSELY HUMOUROUS FAQ ** 0. Introduction This is the droll, charming and occasionally even informative Frequently Asked... more »
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Commodore FTP Sites Listing -- Last update 24 Jun 2006
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Last Change/Update: 24 Jun 2006 =================== A +++ before an entry indicates that the entry is new, or has been updated, or has changed, since the last Listing. A --- before an entry indicates that the _prior_ entry was removed from the list, since the last Listing. A ??? before an entry indicates that the entry resolves, but... more »
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Jeri Ellsworth at VCF East 4.0
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Last year CBM engineers Bil Herd, Dave Haynie, Bob Russell, and a teleconferencing Chuck Peddle gathered at the Vintage Computer Festival East 4.0 in order to honor 25 years of the Commodore 64. The CBM engineers had their talk on Saturday, June 9, and I was fortunate to be there. Dave Haynie combined... more »
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Shredz64/PSX64 adapter nearing sale
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Toni Westbrook, developer of Shredz64 (the C64 adaptation of Guitar Hero) and its accompanying PSX64 interface, is gearing up to sell! He already has built a few of the PSX64 adapters and has sold those to a few people who are doing the beta testing. He is now placing a big order with DigiKey for the parts to build... more »
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How do I set or clear the Sign Flag?
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I'm trying to draw pixels in GEOS and while I have no problem displaying text or bitmap graphics, and using the GraphicsString command, the DrawPoint requires the Sign Flag and Carry Flag to be set. I know SEC sets the Carry Flag, but how can I set the Sign Flag? Also, for those in the know, several Graphics routines ask you to set the... more »
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bug fixes by drive ROM updates?
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The most recent Commodore ROM update for the 1571 greatly improved the drive's performance when it was installed. I'm specifically interested in differences between V2.74 and V2.80 of the CMD hard drive boot ROM chip. Just what bugs were fixed with the ROM update? (the ROM is said by an EBAY auctioneer to enable the use of internal... more »
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