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Re^3: Need more precision.

by Anonymous Monk
on Jun 09, 2015 at 23:32 UTC ( [id://1129751]=note: print w/replies, xml ) Need Help??


in reply to Re^2: Need more precision.
in thread Need more precision.

punching a few of those keywords throws up some code (idontgetit) http://stackoverflow.com/questions/2963055/msvc-win32-convert-extended-precision-float-80-bit-to-double-64-bit

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Re^4: Need more precision.
by BrowserUk (Patriarch) on Jun 09, 2015 at 23:59 UTC

    I thought about trying to use the 80-bit precision that available in the x87 FPU, but to get access to it I'd have to drop into assembler; and with MSVCx64, that means using MASM64 as the 64-bit compiler doesn't support inline asm.

    But Masm64 (the version I have) is borked. It doesn't support a crap load of stuff you want it to; it's macro facilities have a habit of producing unassemblable code; and there is no support available at all. There are only about 10 pages of information about writing Masm64 code on the entire 'net; and half of those are just stolen copies of the other half.

    Pretty much a dead end.


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