TIP: Click on subject to list as thread! ANSI
echo: c_plusplus
to: DARIN MCBRIDE
from: HERMAN SCHONFELD
date: 1997-03-30 08:16:00
subject: Re: Video

 NJ>  //Screen[x+y*320] = color;
 NJ>  Screen[x+(y<<6)+(y<<8)] = color; /* same as above but here the
 NJ>          multiplication is replaced with
 NJ>          shifts to make it faster */
DM>Are you SURE that two shift operations followed by an addition is really
DM>faster than the hardware-optimized integer multiplication?
DM>Perhaps on an 8086... but on an 80486?  Probably not...
Bit shifting will ALWAYS be faster than multiplying.
... I wish life had a scroll-back buffer.
--- Ezycom V1.48g0 01fd016b
---------------
* Origin: Fox's Lair BBS Bris Aus +61-7-38033908 V34+ Node 2 (3:640/238)

SOURCE: echomail via exec-pc

Email questions or comments to sysop@ipingthereforeiam.com
All parts of this website painstakingly hand-crafted in the U.S.A.!
IPTIA BBS/MUD/Terminal/Game Server List, © 2025 IPTIA Consulting™.