From: rick.c.hodgin@gmail.com   
      
   On 9/18/2019 6:51 AM, Bart wrote:   
   > On 17/09/2019 08:54, Ruud Baltissen wrote:   
   >> Hello,   
   >>   
   >> I'm working on my own OS, meant to run on various 8088 based machines, not   
   >> just the PC. I'm also programming my own Pascal compiler that should run   
   >> under that OS. It is able to compile itself, it only outputs macros and it   
   >> is up to the assembler plus an INC file to turn it in a running program. So   
   >> far I was able to create programs that run on a Commodore 64. I'm now busy   
   >> now to create an INC file for the 8088. Outputting a string under my OS or   
   >> MS-DOS goes fine. But I also need to fill the macros needed for the   
   >> mathematical functions. I could invent the wheel twice but handling REALs   
   >> is not easy. But Google wasn't my friend this time.   
   >>   
   >> So I'm looking for a mathematical library in assembler for the 8088. Can   
   >> anybody help, please?   
   >   
   > Do these machines also have an 8087? That would help!   
   >   
   > Otherwise, a software library operating to modern standards, and working with   
   > 64-bit IEEE, sounds like it's going be rather slow.   
      
   Slow is a relative term.  The original 8086/8088 ran at 4.77 MHz.   
   Modern CPUs could run full emulation solely in software at probably   
   300 MHz if not faster.  BGB has a simulation using his verilog-   
   based logic that runs at 50 MHz, and that's simulating circuits.   
      
   For a long time I've wanted to re-purpose the x87 opcodes to have   
   a different kind of math library.  I've wanted to add arbitrary-   
   precision support in lieu of 80-bit reals.  Use real hardware for   
   32-bit and 64-bit, but when using 80-bit loads and operations on   
   80-bit loaded values, use GMP and MPFR.  Haven't gotten around to   
   it yet.  Too many other things to do first.   
      
   --   
   Rick C. Hodgin   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)