Thi� progra� i� use� t� conver� a� Apple//� (usin� � Z8� �
Softcard//� an� henc� CP/M� int� � dum� termina� whic� ca� b� �
use� t� communicat� wit� � remote� e.g� anothe� compute� �
directly� o� b� a� externa� mode� (whethe� � voic� cu� o� � �
direct connect such as a Hayes Smart Modem) over a phone line. 

     Ful� duple� i� utilized� Inpu� entere� a� th� consol� i� �
sen� vi� PUN� ove� th� Apple//� buil� i� seria� port� echoe� �
character� o� inpu� fro� th� remot� ar� receive� fro� th� seria� �
por� vi� RDR� an� sen� t� th� console� I� ther� ar� n� character� �
i� th� "RS232� inpu� buffer� th� progra� check� th� consol� fo� �
input� grab� � characte� i� present� output� i� vi� PUN� etc� I� �
th� consol� inpu� i� CTRL-� th� progra� i� terminate� an� contro� �
is returned to CP/M.

     REQUIREMENTS� Th� Apple//� SO� devic� drive� transferre� t� �
th� CP/� syste� mus� contai� � (standard� "RS232� drive� �
preferabl� configure� wit� 8-bit� n� parit� wit� on� sto� bi� �
(se� th� SO� devic� drive� manual)� th� bau� rat� mus� b� se� vi� �
th� A//� Utilitie� Progra� t� � rat� appropriat� fo� th� intende� �
communicatio� prio� t� transfe� t� CP/� a� DRIVER.SOS� Th� �
Softcard//� Configuratio� progra� (o� CP/� STAT� shoul� b� use� �
t� se� RDR:=RD1:=.RS232� an� PUN:=PU1:=.RS232� A� th� sam� tim� �
LST� shoul� b� se� t� .NUL� i� th� seria� por� i� use� fo� �
communication to a printer.

     HO� I� WORKS� Th� progra� begin� wit� � sign-o� messag� tha� �
remind� th� use� (once� tha� CTRL-� i� th� wa� t� exit� �
Thereafter� al� consol� inpu� i� sen� t� th� seria� port; 
character� echoe� fro� th� mode� o� th� remot� ar� displaye� o� �
th� console�  Direc� I/� i� use� t� chec� consol� statu� an� �
inpu� characters� henc� al� contro� command� ar� sen� t� th� �
remote� excep� o� cours� CTRL-� whic� th� progra� recognize� a� �
th� comman� t� terminat� an� exi� t� CP/M�  Ful� us� i� mad� o� �
CP/� call� t� BDO� i� orde� t� kee� th� progra� a� simpl� a� �
possible� Th� routin� RDRS� (reade� status� i� somewha� mess� bu� �
i� require� becaus� o� th� residen� Z8� an� 650� processor� an� �
th� fac� tha� al� CP/� I/� i� handle� vi� th� 650� usin� th� �
Apple//� SO� operatin� system� WHa� i� goin� o� i� simpl� this� �
i� yo� jum� t� th� RDR� t� ge� � characte� fro� th� remot� yo� �
wil� b� stuc� ther� unti� � characte� appears� Th� obviou� answe� �
i� t� chec� th� statu� o� th� RDR:� bu� ther� i� n� simpl� wa� t� �
d� this� Th� solutio� lie� i� issuin� a� Apple//� syste� cal� �
fro� CP/� t� ge� th� statu� o� th� "RS232� inpu� buffer� i� th� �
character� ar� present� gobbl� the� u� an� sen� the� t� th� �
console� i� no� chec� fo� consol� inpu� usin� direc� I/� s� tha� �
i� � characte� i� presen� i� wil� no� b� echoe� directl� t� th� �
consol� an� interac� wit� th� loca� CP/� syste� (e.g� � CTR� �
character)� Muc� o� th� res� o� th� progra� i� obvious� brevit� �
ha� bee� sacrifice� fo� clarity� � loca� stac� se� u� wa� �
probably unnecessary, but was used to play safe.

     Extension� o� thi� progra� ar� i� th� works� (1� t� permi� �
tex� downloa� fro� � remot� t� disk� (2� t� produc� ye� anothe� �
adaptatio� o� th� grea� War� Christense� MDMXXX.AS� progra� s� ��tha� Apple//� user� wil� b� abl� t� tak� advantag� o� binar� �
downloa� vi� XMODEM� Th� progra� ha� bee� teste� wit� a� Apple//� �
an� � Haye� Smar� Mode� b� communicatin� wit� a� RCP� bulleti� �
boar� (Cranford� an� � DE� 11/3� (RSX11� os� a� 30� baud� �
Communicatio� wit� � liv� use� ove� � phon� lin� wa� successfu� �
afte� a� agree� upo� use� protoco� wa� establishe� suc� tha� eac� �
woul� no� b� transmittin� an� mi� messages� I� bug� o� �
limitations are found, please communicate them to:

                                Peter Fillingham
                                29 South Valley Road         
                                West Orange. NJ 07052
                                (201) 731-9269 (evenings)

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