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Path: sserve!manuel!munnari.oz.au!uunet!mcsun!fuug!news.funet.fi!hydra!klaava!torvalds From: torvalds@klaava.Helsinki.FI (Linus Torvalds) Newsgroups: comp.unix.bsd Subject: Re: Help with math emulator!!! Message-ID: <1992Sep20.082035.19305@klaava.Helsinki.FI> Date: 20 Sep 92 08:20:35 GMT References: <19c1e4INN81h@agate.berkeley.edu> Organization: University of Helsinki Lines: 25 In article <19c1e4INN81h@agate.berkeley.edu> randyc@soda.berkeley.edu (Yen-Pang Randy Chou) writes: > >I was trying to compile vogl(emulates an sgi on X), and ran into the following >error message when I tried running one of the sample files : > >math_emulate: instruction d9ff not implemented 0xd9ff is the code for "fcos", which is indeed not handled by the emulator (along with all the other trigonometric/logarithmic functions). The math emulator only handles those instructions which gcc normally generates (loads/stores/add/sub/mul/div/cmp and state save/restore). I don't think the bsd emulator even contains the fsqrt code which I added later for linux (as gcc-2.x can generate that too). >does anyone know how to fix that? I tried both the original libm.a and the >new libcfpu.a and they both gave me the same error message. Would it help >if I had a 486? BTW, has anyone gotten vogl to work? A math chip (387 or a full 486) would certainly help, as the emulator isn't needed then. Another fix is to use a soft-float library, which does the library functions (that the emulator doesn't handle) by doing the correct series of simpler functions. I don't know if/where such a library can be found for 386bsd. Linus