Re: Debate: PowerMac "trounces" Pentium....???

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Article #3258

#3258

From: Tom L. Davis
Date: Fri, 16 Feb 1996 02:51

31 lines
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In article <4fo9jd$cq0@meaddata.lexis-nexis.com>, christw@meaddata.com
(Christopher C. Wood) wrote:

    In article <4fiq8t$l5q@nnrp1.news.primenet.com>, Jeff Rugen
<jrugen@primenet.com> writes:
    
    |> Well, porting _too_ MacOS looks like a pain, but porting _from_ it
    |> looks pretty simple...
    
    |> #ifndef MAC
    |> #define WaitNextEvent(x,y,a,b)     /* Wait Next Event (x,y,a,b) */
    |> #endif /* MAC */
    
    |> Maybe we should design for the MacOS and then everything will be
    |> easily portable.
    
    If only it were that easy.  MacOS code is written knowing that the
    program can only be "preempted" at certain points in the code.  That
    is the mechanism for building exclusive access to shared resources.
    
    Your #ifndef technique breaks any program that needs exclusive access
    to a shared resource. 
    
    Chris
    -- 
    Speaking only for myself, of course.
    Chris Wood    christw@lexis-nexis.com   ChrisCWood@eworld.com

Then just define WaitNextEvent to enable interrupts and then disable them. 

Tom

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<nevin-0602962253080001@150.135.1.79> <4fdi45$gu7@eken.hv.se> <4fea7g$eio@nyx.cs.du.edu> <9602092127.AA24456@ues5.cern.ch> <4fiq8t$l5q@nnrp1.news.primenet.com> <4fo9jd$cq0@meaddata.lexis-nexis.com>

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Path: arc1-ca.pugleaf.net!pppsb5.itg.ti.com!user
From: davis@adrs1.dseg.ti.com (Tom L. Davis)
Newsgroups: comp.sys.powerpc,comp.os.linux.advocacy,comp.sys.mac.advocacy,comp.os.os2.advocacy,comp.sys.amiga.advocacy,comp.sys.intel
Subject: Re: Debate: PowerMac "trounces" Pentium....???
Date: Thu, 15 Feb 1996 20:51:40 -0600
Organization: Texas Instruments
Message-ID: <davis-1502962051400001@pppsb5.itg.ti.com>
References: <nevin-0602962253080001@150.135.1.79> <4fdi45$gu7@eken.hv.se> <4fea7g$eio@nyx.cs.du.edu> <9602092127.AA24456@ues5.cern.ch> <4fiq8t$l5q@nnrp1.news.primenet.com> <4fo9jd$cq0@meaddata.lexis-nexis.com>
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