finkel@TAURUS.BITNET (02/26/88)
About a few weeks ago I posted an article and mentioned a few MSDOS emulators for Unix and 680X0. I posted a more complete article, but I'm 90% sure that it didn't get nowhere ( I post articles by sending them to a mail alias at ucbvax.berkeley.edu . since I didn't receive the article back on my news system, I assume that the posting failed. It's not the first time. the mailer is very sensitive to the subject header. articles without a subject header that are sent to comp-sys-m68k@ucbvax.berkeley.edu will be rejected. ) Anyway: 1) Software Co-Processor - Phoenix technologies ( Norwood, MA ) works under unix or Apoloo's aegis.runs on 68020/68030. an unnanounced (yet) version will also run on a RISC processors ( model not mentioned) The program can store MSDOS material as a single file per volume ( a single file will contain all the MSDOS stuff), or as 1 MSDOS file<>1 Unix file. The first method is faster.) benchmarks: phoenix claims a Norton SI measure of 3.1 to 3.3 2) SoftPC - Insignia Solutions ( San francisco, CA) target processors: 68020/030, the Clipper from Intergraph. the programs runs currently only onder Unix, bot other OS are planned. the program is available today for Sun/3 series from sun, for the Tek 43XX series from Tektronix, for the Intergraph InterPro 32C machine, and for the Mac II from Apple. performance: 330 Drhystones ( 331 on an XT ), Norton SI just over 1.0 . 3) XDOS - Hunter systems ( Mountain View, CA) This is an optimizing MSDOS compiler! not an Emulator! XDOS will compile MSDOS binary files into Unix executable files. XDOS includes global optimization techniques. for example, it knows, for each instruction, what Condition code flags will be used, and computes only the needed one. this is done by a global flow analyse. The compiler is able to map all the PC registers referenced by programs into Unix systems calls. XDOS is available on the 680X0 series processors. benchmarks: 200 Drhystones. Hunter have another benchmarks which measures video screen response times. a program which draws 100 generations of LIFE took 130 seconds. it took 20 seconds after the program was compiled with XDOS. All the benchmarks mentioned here were mesured on a 16.67MHz Sun3/160. ( This includes all 3 programs ) As you can see, this is only a brief description of the programs. The full article was published in: COMPUTER DESIGN Jan 15, 1988 The article is 3 pages long. Udi Finkelstein finkel@math.tau.ac.il or finkel@taurus.bitnet A few people wrote to me some questions. I'm sorry that I didn't answer, because I have troubles with UUCP Paths, and I knew that I'm going to post a bigger article here.