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- Newsgroups: comp.sys.amiga.programmer
- Path: sparky!uunet!charon.amdahl.com!pacbell.com!mips!sdd.hp.com!usc!rpi!psinntp!psinntp!visix!news
- From: brett@visix.com (Brett Bourbin)
- Subject: Re: Reentrancy problem - Help Needed
- Message-ID: <1992Aug19.131540.25962@visix.com>
- Sender: news@visix.com
- Reply-To: brett@visix.com
- Organization: Visix Software Inc., Reston, VA
- References: <34468@cbmvax.commodore.com>
- Date: Wed, 19 Aug 92 13:15:40 GMT
- Lines: 19
-
- In article <34468@cbmvax.commodore.com> chrisg@cbmvax.commodore.com (Chris
- Green) writes:
- > LoadRGB4 inside of an interrupt is not safe. LoadRGB4 attempts
- > to get a semaphore whihc protects the intuition copper lists.
- ObtainSemaphore
- > inside of an interrupt will hang.
-
- Now, you see why people make their own hardware Copper Lists and attach
- them with a user Copper list to a View. You CAN then change the palette
- during an interrupt.
-
- May seem like very little gain for you, but for some cases, is badly
- needed.
-
- > |Chris Green - Graphics Software Engineer - chrisg@commodore.COM
- -- _ _ _ _
- Brett Bourbin (_ |_ | /__ | |(_ 4431 Lehigh Road, Suite 151
- ..!uupsi!visix.com!brett __)|_ |_\_/ \_/__) College Park, Maryland 20740
- brett@visix.com LIMITED 703.758.2733
-