They can be in the HMA unlike the SFTs (like Tom said).
Great! Let's move them there then. Your proposal to move (in realtime) them from/to SFTs and reduce their size is also great, if it can be achieved (perhaps later).
MS-DOS 7.1 has 645728 bytes free (the kernel occupies 9632 bytes) PC-DOS 7.1 has 645952 bytes free (the kernel occupies 9408 bytes)
yes, but what's important is how much we really have free. DRDOS also has less kernel bytes but there was no way I could convince it to put command.com (even 4dos) completely in a UMB... (unlike our shellhigh). There was always something low left behind.
My figures are pure, without even the low 272 bytes of 4DOS, which can nowhere be avoided, even if I load it by "shellhigh", even in FreeDOS. So to obtain the real figures you can to add 272. (I don't think that those 272 bytes change anything though ;-)
The patched kernel behaves very strangely! :-( It outputs an error for DEVICE=C:\DOS\HIRAM.EXE line and doesn't load it and repeates this with many other lines (but not all). For my simpler floppy configuration, it doesn't load HIMEM64.EXE without even showing an error!
ok, please note the simplest configuration (config.sys contents, the HIMEM64 version you use (size in bytes as well)) -- and try with a Watcom compiled kernel just to make sure I can reproduce.
My OpenWatcom 1.2 FAT32 & 386 build crashes (stops responding) before even showing the driver's name with the following simplest FDCONFIG.SYS:
menu 0: Boza1 menu 1: Boza2 01?DEVICE=HIMEM64.EXE
HIMEM64.EXE is dated 11.3.2004 and is 7790 bytes (packed with SY2PACK, as distributed by Tom).
HIMEM64.ASM is dated 10.3.2004 and is 82982 bytes. Its DRIVER_VERSION string is equal to 3.10.
If you reduce the above FDCONFIG.SYS file to just "device=himem64.exe", it loads normally. If I have 3 menu items and add a "menudefault", then it shows an error on the "device=HIMEM64.EXE" line, substituting one of the characters of the file name or extension with a smiling face ;-)
Hope this helps. Lucho
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