Dear Louis, a few points
a) the FreeDOS project isn't very interested in a BC5 compiled kernel because BC5 isn't freely available/open source; I also doubt the output of BC5 will be significant better then the OW output. feel free to experiment, but don't expect us to be excited ;) > So, something in the make files/build files is skipping building a concrete > GLOBAL for ReturnAnyDosVersionExpected for BC5. There's a MAIN define > checked but the build process doesn't seem to get defined anywhere. :/ b) when trying to port the kernel to a new compiler, you should be able to fix such issues yourself. generate assembler output, see what is wrong. you will need this as the FreeDOS uses the 'interesting memory model (TM)' > Need to do more digging. c) no need to write 'need more digging' type of mails. use your twitter account for that. Tom > On Tue, May 14, 2013 at 9:10 PM, Louis Santillan <lpsan...@gmail.com> wrote: >> BC5 in my hands in 5 days for $35 shipped from Canada. >> >> >> On Thu, May 9, 2013 at 5:58 AM, Louis Santillan <lpsan...@gmail.com>wrote: >> >>> So I bought a shrink wrapped copy of BC5 off ebay today. Should be in my >>> hands in 7-10 days. :D >>> >>> >>> On Tue, May 7, 2013 at 10:45 AM, Louis Santillan <lpsan...@gmail.com>wrote: >>> >>>> On Mon, May 6, 2013 at 5:46 AM, Tom Ehlert <t...@drivesnapshot.de> wrote: >>>> >>>>> >>>>> > Badly written ifdef in memdisk.asm. Fixed such that 486+ compiles. >>>>> Read ( >>>>> > ftp://openwatcom.mirrors.pair.com/manuals/current/cguide.pdf) and >>>>> sections >>>>> > 2.3.x & 3.5. Enlightening and disappointing. There does not seem to >>>>> be a >>>>> > way to get 32-bit instructions out of wcc as Tom had mentioned. 3.5 >>>>> > recommends >>>>> Watcom is open source; feel free to add 32 bit instructions to the 16 >>>>> bit compiler >>>>> >>>>> >>>> I think recompiling with BC 5.0.2/4.5.2 would be a better option at this >>>> point. I'd love to have the time to do this. :/ >>>> >>>> >>>>> > "The recommended options for generating the fastest 16-bit Intel >>>>> code are: >>>>> > Pentium Pro /onatx /oh /oi+ /ei /zp8 /6 /fpi87 /fp6 >>>>> > Pentium /onatx /oh /oi+ /ei /zp8 /5 /fpi87 /fp5 >>>>> > 486 /onatx /oh /oi+ /ei /zp8 /4 /fpi87 /fp3 >>>>> > 386 /onatx /oh /oi+ /ei /zp8 /3 /fpi87 /fp3 >>>>> > 286 /onatx /oh /oi+ /ei /zp8 /2 /fpi87 /fp2 >>>>> > 186 /onatx /oh /oi+ /ei /zp8 /1 /fpi87 >>>>> > 8086 /onatx /oh /oi+ /ei /zp8 /0 /fpi87" >>>>> >>>>> > -ot of -onatx & -zp8 contradict the original makefile's code -os & >>>>> -zp1 >>>>> > (optimize execution time vs. executable size & align on byte vs. >>>>> 8-byte, >>>>> > respectively). Also, the -fp*'s opts don't apply and wcc barfs on >>>>> -oi+. >>>>> >>>>> we *want* -os (optimize for size); size matters. both size on disk and >>>>> size in memory are (somewhat) important. speed does *not* matter as >>>>> there is virtually no time spend *inside* the kernel. >>>>> >>>>> to experiment, run some benchmark (like compiling a big project), on >>>>> an optimized kernel vs. not optimized kernel vs. borland kernel. >>>>> measure times. think. >>>>> >>>>> we *need* -zp1 as DOS structures have specific byte offsets. >>>>> >>>> >>>> Thanks for that tip about zp1. >>>> >>>> As for benchmarks (implied by the Regression Tests), that is on the >>>> FreeDOS 1.1->1.2 Road Map Action Items anyways. I'd like to help with >>>> that. >>>> >>>> I think I'm going to peruse Simtel and try to find OS benchmarks before >>>> I start writing stuff that simply uses UTILS/RUNTIME. For Regression >>>> Testing, I'd suggest using something like TAP ( >>>> http://en.wikipedia.org/wiki/Test_Anything_Protocol). I might even be >>>> able to contribute some code here. Otherwise, we can brainstorm some >>>> benchmarks and tests >>>> >>>> FAT12 vs FAT16 vs FAT32, >>>> File Reads (Small <1K, Medium <1MB, Large <16MB, Huge<2GB), >>>> File Writes >>>> File Creates >>>> File Deletes >>>> RAMDISK vs FDD vs HDD, >>>> File Copies (Same RAMDISK, RAMDISK->HDD, HDD->RAMDISK, RAMDISK->RAMDISK, >>>> Same HDD, HDD->HDD) >>>> With & Without Caching >>>> Cache Sizes >>>> With & Without Share >>>> Process Starts >>>> Boot Times >>>> Kernel Compilation Times >>>> >>>> >>> >> Mit freundlichen Grüßen/Kind regards Tom Ehlert +49-241-79886 ------------------------------------------------------------------------------ AlienVault Unified Security Management (USM) platform delivers complete security visibility with the essential security capabilities. Easily and efficiently configure, manage, and operate all of your security controls from a single console and one unified framework. Download a free trial. http://p.sf.net/sfu/alienvault_d2d _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
