Eicon Networks CX1 Especificações descarregar pdf (Página 211)

Across the Boards



Communications Device Drivers

Miscellaneous Topics

Page 361

cfSOFTWARE Confidential,



2000

Section 7 - Miscellaneous Topics

7.1 Rational Systems DOS Extender

This DOS extender has been used to implement ATB/DOS in a environment where the application is in

protected mode, and the ATB modules are loaded in real mode with a mode switch occuring under the

applications control. A problem is that Rational Systems DOS Extender makes the switch and leaves interrupts

disabled

. This causes the VTIC calibrate to hang. The application

must

insure that interrupts are enabled

before calling ATB modules.

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