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view level1/modules/term_scdwt.asm @ 3246:be3446f758ca

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Updated dwread.asm and dwwrite.asm so that the 6551 routines could have specially defined flags so that some of the addresses could be overridden by the make files if needed.
author David Ladd <drencor-xeen@users.sourceforge.net>
date Sun, 11 Mar 2018 01:30:30 -0600
parents c877f09599f9
children
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********************************************************************
* TERM - Drivewire Virtual Serial Port on T0
*
* mostly copied or slightly changed from other OS9/DriveWire code
*
* Aaron Wolfe
* version 0.3 - 12/17/09  - added SHARE bit to mode
*
* This descriptor has slightly different defaults, intended to be used as 
* the channel for the DriveWire utilities
*

         nam   TERM
         ttl   CoCo DriveWire Virtual Serial Device Descriptor

         ifp1  
         use   defsfile
         endc  

tylg     set   Devic+Objct
atrv     set   ReEnt+rev
rev      set   $00

         mod   eom,name,tylg,atrv,mgrnam,drvnam

         fcb   UPDAT.+SHARE.    	mode byte (share set to prevent multiple access)
         fcb   HW.Page    extended controller address
         fdb   $FF00      physical controller address
         fcb   initsize-*-1 initilization table size
         fcb   DT.SCF     device type:0=scf,1=rbf,2=pipe,3=scf
         fcb   $00        case:0=up&lower,1=upper only
         fcb   $00        backspace:0=bsp,1=bsp then sp & bsp
         fcb   $01        delete:0=bsp over line,1=return
         fcb   $00        echo:0=no echo
         fcb   $00        auto line feed:0=off
         fcb   $00        end of line null count
         fcb   $00        pause:0=no end of page pause
         fcb   66         lines per page
         fcb   C$BSP      backspace character
         fcb   C$DEL      delete line character
         fcb   $00        end of record character
         fcb   $00        end of file character
         fcb   C$RPRT     reprint line character
         fcb   C$RPET     duplicate last line character
         fcb   C$PAUS     pause character
         fcb   $00        interrupt character
         fcb   $00        quit character
         fcb   C$BSP        backspace echo character
         fcb   C$BELL     line overflow character (bell)
         fcb   $00        init value for dev ctl reg
         fcb   B600       baud rate
         fdb   name       copy of descriptor name address
         fcb   $00        acia xon char
         fcb   $00        acia xoff char
         fcb   80         (szx) number of columns for display
         fcb   24         (szy) number of rows for display
initsize equ   *

name     fcs   /Term/
mgrnam   fcs   /SCF/
drvnam   fcs   /scdwt/

         emod  
eom      equ   *
         end