Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!ucbvax!agate!e260-1e.berkeley.edu!c60b-1eq From: c60b-1eq@e260-1e.berkeley.edu (Noam Mendelson) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: C64 emulation. Message-ID: <1991Apr22.035236.25021@agate.berkeley.edu> Date: 22 Apr 91 03:52:36 GMT References: <1991Apr21.041312.1@watt.ccs.tuns.ca> <22498@yunexus.YorkU.CA> Sender: root@agate.berkeley.edu (Charlie Root) Organization: University of California, Berkeley Lines: 21 In article <22498@yunexus.YorkU.CA> rreiner@yunexus.YorkU.CA (Richard Reiner) writes: >>My guess is that sprite and collision detection cannot be efficiently emulated >>through software, which is the only way possible with an IBM PC. >On the other hand, the C64 can do 36 dhrystones/sec (according to the >machine rankings included with the dhrystone benchmark source), while >a cached 386-33 does a best-case 13500 dhrystones/sec (according to my >own measurements: dhrystone 2.0 compiled with MS C 5.1, generating >286-specific instructions, using the register option). Thus a 386-33 >is 375 times as fast as a C64. ^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ I know this is a bit off the track but that statement is simply wrong. Comparing a 386-33 to a C64 using dhrystones is ridiculous, considering the difference between the processor capabilities. Besides, in my experience a C64 managed only 6 dhrystones/sec :-) -- +==========================================================================+ | Noam Mendelson ..!ucbvax!web!c60b-1eq | "I haven't lost my mind, | | c60b-1eq@web.Berkeley.EDU | it's backed up on tape | | University of California at Berkeley | somewhere." |