Hola Eduardo,
Not really. In the worst case, only the 4 bytes for the empty DBCS table will be unused. The idea is to overwrite the hardcoded tables for CTYINFO, UCASE, FCHAR, and COLLATE and allocate new memory (if needed) for FUCASE, LCASE and DBCS _only_.
What about a combination of your (1) and (3) methods - increase static memory only for FUCASE (by 130 bytes or so) and not support DBCS in COUNTRY.SYS? Arkady wrote that MS-DOS 6.2 doesn't support LCASE for codepage 866 either.
I don't see the point. You have the array of nlsPointer structures, which tells you where the tables are for each subfunction. If you have a look at nls_hc.asm, maybe it will be clearer.
Indeed, now I see an array ot SEG Table? pointers there.
Eduardo, let's keep it simple. If you do the changes to NLS_HC.ASM needed to support the *current* information in COUNTRY.SYS, I'll change CONFIG.C as per your (1) and (3) methods. I detest having to dynamically allocate NLS memory in the kernel.
Thanks, Lucho
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