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AX = 1400h BX = 0EDCh
Return:
AL = status 00h not installed, OK to install 01h not installed, not OK to install (for example under a multitasker) FFh installed ES:DI -> version signature ("4.01$".."4.04$" for 4.01..4.04) flags may be destroyed
Program: NLSFUNC 4.01+ is currently an independent project under development by Matthias Paul. It is not yet publically available, but as NLSFUNC 4.00 did, it will probably become available with future DR-DOS releases.
Notes: If BX <> 0EDCh on entry, DR-DOS NLSFUNC 4.01+ performs the standard installation check (INT 2F/AX=1400h), and does not change ES:DI.. DR DOS 5.0+ NLSFUNC 3.00+ returns CF set and AX=0001h, if AL was not 00h, FEh, or FFh on entry.. NLSFUNC 4.01+ will use the ES:DI enhancement to check the driver version and calculate displacements into the resident driver for runtime updates of internal structures like the local NLS database filespec, etc.. If the returned ES points into the HMA (ES=FFFEh) care should be taken to actually access the HMA while checking the version signature and updating resident data (mutex with local A20 enable/disable).. While previous issues of NLSFUNC installed under a multitasker, DR-DOS NLSFUNC 4.01+ will actually adapt to work properly in this environment.
See Also:
AX=1400h"NLSFUNC.COM" - AX=14FEh - AX=14FFh - I
Category:
Uncatagorized
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Int 2Fh
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D
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