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cohr: Support both COVDG control codes and COHR Esc codes $0B is the only control character that is used by both protocols. I decided to keep the the COVDG command as this protocol is more common. So far I've been able to find only 3 OS9 applications that are using the CoHR drivers, all by Dragon Data: Stylograph, Dynacalc and RMS. Only RMS seems to use the $0B (Home) control code, but it is easy to patch the RMS.trm file to replace $0B with the $01 CoVDG Home command. So this seems like a reasonable sacrifice.
author Ken H. <dragon.atv@gmail.com>
date Mon, 10 Feb 2014 10:10:40 +0200
parents b8c7b7fbf3c9
children
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********************************************************************
* VI - VRN (VIRQ/RAM/Nil driver) device descriptor
*
* $Id$
*
* Edt/Rev  YYYY/MM/DD  Modified by
* Comment
* ------------------------------------------------------------------

         nam   VI
         ttl   VRN (VIRQ/RAM/Nil driver) device descriptor

         ifp1  
         use   defsfile
         use   cocovtio.d
         endc  

Edtn     equ   1
rev      equ   0

         mod   ModSize,DvcNam,Devic+Objct,ReEnt+rev,MgrNam,DrvNam

         fcb   UPDAT.     access mode(s)
         fcb   HW.Page    hardware page
         fdb   $FF02      hardware port
         fcb   OptSize
OptStart fcb   DT.SCF
OptSize  equ   *-OptStart
MgrNam   fcs   "SCF"
DrvNam   fcs   "VRN"
DvcNam   fcs   "VI"
         fcb   Edtn

         emod  
ModSize  equ   *
         end