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- Newsgroups: comp.sys.amiga.games,comp.sys.amiga.hardware,comp.sys.amiga.misc,comp.sys.amiga.graphics,comp.sys.amiga.programmer
- Path: netcom.com!wfblan
- From: wfblan@netcom.com (Wells Fargo Bank)
- Subject: Re: FPU and games?
- Message-ID: <wfblanDL5uCw.LsC@netcom.com>
- Organization: NETCOM On-line Communication Services (408 261-4700 guest)
- X-Newsreader: TIN [version 1.2 PL1]
- References: <4d5t1b$sbi@orca.ucd.ie> <385424638wnr@teeth.demon.co.uk>
- Date: Sun, 14 Jan 1996 07:34:07 GMT
- Sender: wfblan@netcom3.netcom.com
-
- Alex Amsel (Alex@teeth.demon.co.uk) wrote:
- : In article: <4d5t1b$sbi@orca.ucd.ie> daireb@orca.ucd.ie (Daire Byrne)
- : writes:
- : >
- : > This has probably been asked before but...... will an FPU speed up
- : > games (that are specially written for it of course) ie are there many
-
- : Nope. FPU is useless for games. Not sure if TFX can use one or not, but
- : I can`t think of any other half decent games that would use one.
-
- : -----------------------------------------------------------------
- : | Alex Amsel : Silltunna Software Lead Programmer : Black Magic |
- : | XTremeRacing 1x1 TMapping and Stunning Gameplay on AGA Amigas |
- : | Alex@teeth.demon.co.uk | Steve Bull is Back | *PWEIPWEIPWEI* |
- : -----------------------------------------------------------------
-
- I have pondered this before, but wouldn't it be possible to have games that
- render the screen (TMapped games) take advantage of the FPU. Especially on
- an 040 or 060 where both Integer and FPU operations can be being done at the
- same time. Is there not a formula that could convert a set point math to a
- floating point math to have the FPU handle it. If both the Integer and FPU
- math could be taken advantage of to handle rendering of the screen, it
- could essentially double the rendering speed? Even and 030 w/ FPU could
- allow for excellent TMapped rendering speeds if the FPU was utilized.
-
- Again, couldn't the way the math is being done be modified to use BOTH the
- regular Integer algorith and also a FPU algorithm so that both could be
- crunching data? Slide the decimal over and then have the FPU handle the
- operation and slide it back when done. I am neither a master programmer
- nor a math genius, but this seems fully possible with the math skills I
- do have.
-
- Alex, or any other programmer... What do you say? Have you ever attempted
- such a solution to take advantage of an FPU if it is available? Comments??
-
- Rob Bamford
- (wfblan@netcom.com)
-