Re: [Freedos-user] x-comment to Michael Devore's message of 18 March
Hi! 19-Мар-2005 13:59 [EMAIL PROTECTED] (Eric Auer) wrote to freedos-user@lists.sourceforge.net: EA> If not, you can at least replace the "mov al,[esi] / cmp al,0ffh / EA> je va_next / ... / va_next: inc esi / loop back" part by something like: EA> "mov al,0ffh / repz scasb [esi] Don't forget about `cld'. EA> / jz fail / va_checksubs2: lodsb / Don't forget, that all string instructions change (increment) (e)si after last accessed byte. (Ie., I suggest, here you forget "dec esi"). EA> PPS: Arkady wrote that QEMM has switchable VME support. So it would EA> be a good idea if some QEMM user could check the performance impact EA> of switching VME on/off :-)). If you specify how (better if there will just one executable/script, which does all tests and measures without user intervention), I may try this. EA> Some sound / mod players are for example quite I/O and IRQ heavy. Hint hint. --- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_ide95&alloc_id396&op=click ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] x-comment to Michael Devore's message of 18 March
Hi, Jose Antonio Senna escribió: MD>GNU-ish type stuff suffers from the "we despise everything related to MD>Microsoft" and "Not Invented Here" syndromes, and its relationship with DOS MD>is often uneasy. That said, DJGPP has never given me a problem when MD>testing recent EMM386 versions. I never compiled anything using DJGPP,but I found DJGPP compiled applications, as Lynx, much less stable with EMM386 than without, to the extent I no longer use EMM386 while running them. Why not commenting on them, so that we know what the problem is, and help us fix EMM386? Aitor --- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] x-comment to Michael Devore's message of 18 March
At 03:41 AM 3/19/2005 -0300, Jose Antonio Senna wrote: MD>GNU-ish type stuff suffers from the "we despise everything related to MD>Microsoft" and "Not Invented Here" syndromes, and its relationship with DOS MD>is often uneasy. That said, DJGPP has never given me a problem when MD>testing recent EMM386 versions. I never compiled anything using DJGPP,but I found DJGPP compiled applications, as Lynx, much less stable with EMM386 than without, to the extent I no longer use EMM386 while running them. Many illegal memory accesses in programs which won't fail under HIMEM will fail with EMM386 loaded. EMM386 does not allow memory reads/writes outside of the actual PC memory range due to protected mode /V86 throwing an exception when they occur. Even if the memory access would otherwise be benign. So, nonfatal memory bugs in an application can allow it to run fine without EMM386, then fail when EMM386 is loaded. Is that the situation people are seeing here? No idea. But it's something to generally keep in mind when EMM386 or similar memory managers loaded. I get bug reports that insist EMM386 has a bug because it fails on a program which previously ran "okay", when the program itself has the actual error. --- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
[Freedos-user] x-comment to Michael Devore's message of 18 March
MD>GNU-ish type stuff suffers from the "we despise everything related to MD>Microsoft" and "Not Invented Here" syndromes, and its relationship with DOS MD>is often uneasy. That said, DJGPP has never given me a problem when MD>testing recent EMM386 versions. I never compiled anything using DJGPP,but I found DJGPP compiled applications, as Lynx, much less stable with EMM386 than without, to the extent I no longer use EMM386 while running them. JAS --- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
