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Function  44h   I/O Control for Devices (IOCTL)  Get or Set Device Information

entry AH 44h

AL 0Ch General device\IOCTL (DOS 3.3 [3.2?]) allows a device

driver to prepare, select, refresh, and query Code Pages


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Quick, Easy and CHEAP! RCL-1 RS232 Level Converter in a DB9 backshell
Ashley Roll has put together a really nice little unit here. Leave off the MAX232 and keep these handy for the few times you need true RS232!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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