> On Apr 2, 2025, at 6:33 PM, Jim Hall via Freedos-devel > <freedos-devel@lists.sourceforge.net> wrote: > > On Wed, Apr 2, 2025 at 4:59 PM Eric Auer via Freedos-devel > <freedos-devel@lists.sourceforge.net > <mailto:freedos-devel@lists.sourceforge.net>> wrote: >> >> Hi Jim, as the error messages are about exception 07, >> device not available, all refer to basically the same >> code address and one of them shows the machine code >> to be DB E3 which stands for FNINIT, this does indeed >> look very much like an app which blindly assumes some >> FPU (floating point unit) to be available, instead of >> at least testing for presence first and exiting with >> an error message if necessary. This makes me wonder >> whether we include any good FPU emulators yet :-) >> > [..] >> >>> I also tried rebooting & compiling the C program with i16gcc. I forgot >>> to save the output with Logger, but I took a photo. It has this error: >>> >>> Exiting due to signal SIGNOFP >>> Coprocessor not available at eip=008acd60 >>> >>> ..and then the eax, ebx, ecx, edx, esi, edi, ebp, esp register values. >>> The program was CC1.EXE >> >> You mean I16GCC also blindly assumes a FPU to be present? That is odd. >> > > > Yes, that's what happened. I tried using 'i16gcc -c hello.c' and that > took *forever* but eventually failed with "Exiting due to signal > SIGNOFP" and "Coprocessor not available". I can't attach photos to the > email list, but maybe a WEBP will be small enough to make it. I'll > send that as a follow-up. I'll also send you (Eric) the photo > off-list. >
I did a little quick looking around… There is a WMEMU387 available in DJGPP V2MISC files at: http://delorie.com/pub/djgpp/current/v2misc/ <http://delorie.com/pub/djgpp/current/v2misc/> It has binaries and GPLv2 sources. However, it is a DXE and I had no luck running it under DOSBox. The FPC DOS322FULL.ZIP includes emulation units and also a version of WMEMU387.DXE under their DOS base group. So that FPU emulator may be worth investigating. I do not have any hardware without an FPU. :-) Jerome
_______________________________________________ Freedos-devel mailing list Freedos-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-devel
