Legacy apps in Windows/OS X was Re: Old MS-DOS & Win Software - test-drb@ccmp.vtda.org

8 Dec 2005

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Subject: Re: Legacy apps in Windows/OS X was Re: Old MS-DOS & Win Software
   From: Jim Leonard <trixter at oldskool.org>
   Date: Thu, 08 Dec 2005 15:39:31 -0600
     To: General Discussion: On-Topic and Off-Topic Posts <cctalk at
classiccmp.org>

Chuck Guzis wrote:
  Consider on Windows XP that you can still run the
following code:
 
 	mov	cl,9
 	mov	dx,offset HWMes
 	call	5 
What is "call 5"?  I'm having a brain fart right now and can't parse
this.
--  
Call 5 is the standard CP/M function call to BDOS parameters like what
function is placed in C and DE pointed to string for string output. Goes
all the way back to CP/M-80 V1.x

Allison