Hi there, On Thu, 21 Nov 2002, (or thereabouts) Bart Oldeman wrote:
> dosemu-1.1.3.7 Great stuff! Thanks very much for the work you put in to get DOS extender stuff going. I can confirm that I can now run the extender versions of the Norton (formerly Zortech, Zorland) C++ compiler, linker etc. and they seem to sorta work, but I haven't done any serious testing yet. Note: This assembler doesn't seem to like src/commands/mgarrot.S: GNU assembler version 2.11.2 (i586-pc-linux-gnu) using BFD version 2.11.2 This is OK: GNU assembler version 2.9.1 (i386-slackware-linux), using BFD version 2.9.1.0.25 I haven't investigated further. If you don't want to know about a small problem with the DOS-extender version of the Norton C compiler stop reading now and press 'D'. I can investigate further if you like but probably not until at least February 2003. 73, Ged. ---------------------------------------------------------------------- There is a small problem with the compiler which I can probably get around but I wonder if it's of any interest to you to know about it. Many years ago I wrote a system for invoicing, credit control, stock control etc. It still runs most of the finances for my business. Being a paranoid programmer, I check that strings which are supposed to be constant once loaded in RAM don't get whacked by wild pointers. To check that they stay untouched I wrap each string in "guard" bytes and I have some code which looks at the guard bytes to see if they are changed. If they are it's a sign of a serious program failure and the whole system shuts down. And of course I get a telephone call. The text file containing the strings is read during the compilation (via #include) and at run-time. During compilation a list of pointers (also constants) is generated, one per string, and this list is used for the runtime wild pointer checking. At present there are 826 text strings in the file. Now the funny thing is that the compiler compiles the source OK under DOS but under DOSEMU it chokes with a DOS Stack fault: C:\SOS\V4>make -fmaintx4.mak ztcpp1x -C -DDOS386 -3 -ms -a2 -DLOTS_OF_FILES -otemp.tmp \sos\source\jmdebug INTERRUPT 0CH, STACK FAULT error code = 0000 eax = 00128028 esi = 00000000 flags = 0206 ds = 00E7 ebx = 0009D5D6 edi = 00127FF6 eip = 0000F780 es = 00E7 ecx = 00000000 ebp = 00036000 cs = 00DF fs = 0000 edx = 00000010 esp = 00036000 ss = 00D7 gs = 0000 --- errorlevel 1 I found that if I remove some of the lines containing the strings (i.e. truncate the file) I can get it to compile. It is OK with 721 strings but no more. It doesn't matter how long they are. It doesn't seem to matter which ones I remove. This is all using MS-DOS 6.22 from the original distribution discs. Linux 2.4.19 (compiled on the same machine). Compilation options: static. All others which default ON turned OFF using setup-dosemu. More info available, but only if you want it. :) ---------------------------------------------------------------------- - To unsubscribe from this list: send the line "unsubscribe linux-msdos" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
