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----------------------- MEX Overla� HEL� ------------------------
Writte� by� Ki� Levit� 10/05/8� 5:43 PM
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INTRODUCTION:
Thi� fil� document� th� variou� ME� overlay� (a� containe� i� th� �
accompanyin� MEX-OVLB.LB� file� an� describe� th� differen� type� �
o� overlay� an� explain� ho� the� ar� "linked� int� � MEX.CO� �
fil� (usin� MLOAD� t� creat� you� installe� versio� o� MEX.COM.
Th� overlay� describe� belo� shoul� wor� correctl� wit� MEX�� bu� �
no� al� o� the� ar� guarantee� t� wor� withou� som� possibl� �
"tweaking" for your particular system.
There are three basic types of overlays:
Mode� boar� overlays�� Thes� ar� fo� "modems� o� � boar� �
whic� plu� int� a� S-100�� Appl� o� IB� slo� (usually� o� othe� �
system� whic� hav� interna� modem� whic� connec� th� compute� �
directly to the phone lines with no other intervening hardware.
Seria� por� overlays�� Thes� ar� fo� system� whic� hav� a� �
RS-232à (o� equivalent� seria� por� t� whic� a� externa� mode� �
mus� b� connecte� befor� th� connectio� t� th� phon� line�� Thi� �
typ� include� plug-i� seria� board� a� wel� a� "UARTS� o� single-�
boar� computer� (suc� a� th� Kaypr� o� Morrow).
Externa� mode� overlays�� Thi� typ� o� overla�� usuall� �
support� onl� th� DIA� and/o� DISCONNEC� function� whic� canno� �
b� handle� b� th� seria� por� directly� I� mos� case� (especially�
wit� "Smar� modems"� i� use� th� seria� por� I/Ϡ function� t� �
sen� "commands� t� th� modem�� Thes� overlay� canno� wor� withou� �
the appropriate accompanying serial port overlay.
�� fourt� typ� o� overla� combine� th� seria� por� an� externa� �
mode� cod� int� on� overla� (suc� a� th� KP4� an� EPQؠ overlays� �
whic� make� i� eas�� i� yo� happe� t� us� th� sam� typ� o� �
externa� mode� o� th� sam� system� bu� i� no� a� "layered� a� th� �
seperat� overla� method�� Th� on� reaso� t� combin� overlay� i� �
thi� wa� i� s� th� "SET� comman� ca� d� modem-specifi� actions� �
bu� � ne� "SSET� comman� i� availabl� (a� o� MEX-111� whic� wil� �
eventuall� mak� thi� reaso� a� invali� one�
Sinc� th� distinctio� betwee� mode� board�� seria� por� an� �
combine� seria� port/externa� mode� overlay� i� � bi� fuzzy�� � �
hav� onl�� chose� t� identif� th� "Externa� Modem�� overlay� �
separatel� fro� th� othe� overlays�� Al� o� th� "Externa� Modem� �
overlay� liste� belo�� wil� wor� wit� an� o� th� seria� por� �
overlay� whic� en� befor� 0B00H� bu� AL� o� the� REQUIR� � seria� �
port overlay in order to work.
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OVERLAY DESCRIPTIONS:
T� sav� spac� an� eliminat� redundancy�� al� th� overlay� ar� �
liste� belo� usin� onl� th� las� fou� character� o� th� filename� �
Al� ME� overlay� ar� name� wit� th� forma� MXO-????.AQM�� Thes� �
description� wer� take� fro� th� sourc� cod� listing� an� ma� no� �
b� totall� accurate�� bu� shoul� a� leas� giv� yo� a� ide� whic� �
overlay is most likely to work for your system.
Modem board, serial port & serial port/external modem overlays:
AC01 -- AppleCat ][ modem board (Novation)
AP12 -- Apple ][ serial boards (CCS/SSM/Apple/etc.)
DP10 -- Datapoint 1560
DV10 -- Davidge DSB04/6 single board computer
EP10 -- Epson QX-10
EPQX -- Epson QX-10 + SmartModem compat. external modem
GB10 -- Compupro Interfacer 3/4, SS1 serial boards (S-100)
H811 -- Heath/Zenith H89
HZ11 -- Heath/Zenith 100
II11 -- Intersystems VIO (2651 PCI) w/ H/Z-19/29/49 term.
K484 -- Kaypro 4-84/2x/4x (internal modem)
KP1� -- Kaypr� (Z8� SIO� (for us� w/externa� mode� overlays)
KP41 -- Kaypro + internal or external (Hayes SM-compatible)
KPS2 -- Kaypro + external modem (Hayes SM-compatible)
LO11 -- Lobo MAX-80
MD11 -- Morrow Micro Decision (MD2/MD3)
MM10 -- Morrow Multi-I/O board (S-100 serial board)
MR10 -- Morrow Micro Decision hard disk (MD11)
NE10 -- NEC PC-8001
NS10 -- North Star Horizon
OA10 -- Otrona Attache
OC10 -- Osborne 1 w/ Comm-Pac modem
OS02 -- Osborne 1 (see MXO-OS02.FIX file)
OSEX -- Osborne Executive
PM11 -- PMMI modem board (S-100)
PP10 -- Pied Piper
R210 -- TRS-80 Model II
SB10 -- Intertec Superbrain
TV10 -- Televideo TS-802
US11 -- U.S. Robotics modem board (S-100)
XE10 -- Xerox 820/820-II
ZB11 -- Telecon Zorba
Externa� mode� overlay� (MUS� b� use� wit� seria� por� overlay):
CT10 -- CTS Companion
DT10 -- Datec 212
PR10 -- Penril/Rixon 300/1200 AD
RT10 -- Racal-Vadic VA3451
RV12 -- Racal-Vadic VA212
SC10 -- SmartCat 212 (Novation)
SM13 -- Smartmodem (Hayes and compatibles)
VP10 -- Ventel MD212
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"LINKING" MEX & OVERLAYS:
1� Determin� th� necessar� overlay(s� fo� you� system/modem�� (I� �
non� o� th� overlay� see� t� b� appropriate�� yo� ma�� hav� t� �
writ� you� own�� ge� on� o� tw� existin� overlay� fo� � guid� an� �
adap� i� a� neede� usin� a� existin� mode� overla�� o� progra� �
which already runs on your system as a guide.)
2�� Onc� yo� hav� determine� th� appropriat� overla� t� utilize� �
yo�� shoul� mak� sur� yo� hav� � recen� cop� o� MEX.COM� (lates� �
versio� a� o� th� 10/5/8� thi� wa� writte� wa� MEX112.COM�� an� �
it� associate� MEXPAT.AQ� file� (MEXPAT11.AQ� wit� MEX111/MEX112� �
B� sur� t� ge� th� MEX11DOC.TQ� an� MEX11DOC.W� file� whic� mak� �
u� th� manua� fo� MEX�� You'l� als� nee� MEX.HQ� an� MLOAD21.CQ� �
(o� curren� version�� an� you� selecte� overla�� file�� (NOTE� �
Uninstalle� MEؠ sometime� wil� hav� � ".BIN�� fil� typ� (fo� �
binary) to differentiate it from an installed .COM file.)
3�� Unsqueez� th� MEXPA� an� overla� file� (usin� US� o� NSWP)� �
Als� unsqueez� MLOAD21.CQ� an� ME� itsel� i� squeeze� (som� ME� �
version� ar� release� a� .CQ� files)�� Unsqueez� MEX.HQ� t� ge� �
MEX.HLP while you're at it.. (And the MEX11DOC files too.)
4� Edi� overlay(s)�� selectin� an� necessar� options�� "tweak� a� �
needed for your system. (You may have to "experiment".)
5) Edit MEXPAT file to select default STAT and other MEX options.
6�� Us� AS͠ o� MA� t� assembl� th� overla�� an� MEXPAԠ files� �
giving .HEX files (do NOT "LOAD" these to make .COM files!).
7� Us� MLOA� t� loa� th� overlay(s� an� MEXPA� fil� a� show� i� �
the examples below:
MLOAD MEX.COM=MEX111.BIN,MXO-GB10,MXO-SM13,MEXPAT11
(installs MEX for Interfacer 3/4 serial board w/Smartmodem)
MLOAD MEX.COM=MEX112.COM,MXO-KP41,MEXPAT11
(installs MEX for Kaypro w/Smartmodem or internal modem)
NOTE�� Th� orde� o� th� inpu� file� (one� t� th� righ� o� th� "=� �
equa� sign� i� important�� Th� uninstalle� ME� fil� mus� b� firs� �
(an� shoul� includ� th� .COM/.BIРextension�� an� shoul� b� �
followe� b� th� mode� board/seria� por� overla� an� (i� � seria� �
por� wit� � supporte� externa� modem� th� externa� mode� overlay� �
wit� th� "MEXPATCH� fil� last�� (I� you� overla�� contain� bot� �
seria� por� an� mode� contro� code�� yo� nee� i� an� th� MEXPATC� �
file only.)
8� I� yo� enabl� th� INI.ME� function�� edi� � INI.ME� fil� (wit� �
your favorite editor) with your desired initialization commands.
9� I� al� wen� well� yo� shoul� hav� � workin� versio� o� MEX.CO� �
an� yo� ca� the� rea� th� manua� an� us� HEL� (i� MEX� fo� mor� �
info on how to set up your PHONE list, etc. Happy modeming!!
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IN SUMMARY:
Ge� ye� files�� edi� th� overlays�� MLOA� 'e� an� go� Sound� �
easy�� an� i� usuall� is�� bu� don'� ge� discourage� i� yo� hav� �
trouble. Hope this file will help make the job easier...
-- Kim Levitt 10/5/84 5:43 PM
MBBS HQ RCP/M (213) 653-6398
(300/1200 24 hrs.)
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