: ----------------------- MEX Overlaù HELÐ ------------------------ Writteî byº Kií Levitô 10/05/8´ 5:43 PM ----------------------------------------------------------------- INTRODUCTION: Thió filå documentó thå variouó MEØ overlayó (aó containeä iî thå accompanyinç MEX-OVLB.LBÒ file© anä describeó thå differenô typeó oæ  overlayó  anä explainó ho÷ theù arå "linked¢ intï  á  MEX.COÍ filå (usinç MLOAD© tï creatå youò installeä versioî oæ MEX.COM. Thå overlayó describeä belo÷ shoulä worë correctlù witè MEX¬  buô noô  alì  oæ theí arå guaranteeä tï worë  withouô  somå  possiblå "tweaking" for your particular system. There are three basic types of overlays: Modeí  boarä  overlaysº  Theså arå foò "modems¢ oî  á  boarä whicè  pluç intï aî S-100¬  Applå oò IBÍ sloô (usually© oò  otheò systemó  whicè  havå internaì modemó whicè connecô  thå  computeò directly to the phone lines with no other intervening hardware. Seriaì  porô overlaysº  Theså arå foò systemó whicè havå  aî RS-232à (oò equivalent© seriaì porô tï whicè aî  externaì  modeí musô  bå connecteä beforå thå connectioî tï thå phonå line®  Thió typå includeó plug-iî seriaì boardó aó welì aó "UARTS¢ oî single- boarä computeró (sucè aó thå Kayprï oò Morrow). Externaì  modeí  overlaysº  Thió  typå  oæ  overlaù  usuallù supportó  onlù thå DIAÌ and/oò DISCONNECÔ functionó whicè  cannoô bå handleä bù thå seriaì porô directly® Iî mosô caseó (especially witè  "Smarô  modems"© iô useó thå seriaì porô I/Ï  functionó  tï senä "commands¢ tï thå modem®  Theså overlayó cannoô worë withouô the appropriate accompanying serial port overlay. Á  fourtè  typå oæ overlaù combineó thå seriaì porô anä  externaì modeí codå intï onå overlaù (sucè aó thå KP4± anä EPQØ  overlays© whicè  makeó  iô  easù  iæ yoõ happeî tï uså  thå  samå  typå  oæ externaì modeí oî thå samå system¬ buô ió noô aó "layered¢ aó thå seperatå  overlaù method®  Thå onå reasoî tï combinå overlayó  iî thió  waù ió sï thå "SET¢ commanä caî dï modem-specifiã  actions¬ buô  á ne÷ "SSET¢ commanä ió availablå (aó oæ MEX-111© whicè wilì eventuallù makå thió reasoî aî invaliä one® Sincå  thå  distinctioî  betweeî modeí  board¬  seriaì  porô  anä combineä  seriaì port/externaì modeí overlayó ió á biô  fuzzy¬  É havå  onlù  choseî  tï  identifù thå  "Externaì  Modem¢  overlayó separatelù froí thå otheò overlays®  Alì oæ thå "Externaì  Modem¢ overlayó  listeä  belo÷  wilì worë witè anù oæ  thå  seriaì  porô overlayó whicè enä beforå 0B00H¬ buô ALÌ oæ theí REQUIRÅ á seriaì port overlay in order to work. 1 OVERLAY DESCRIPTIONS: Tï  savå  spacå anä eliminatå redundancy¬  alì thå  overlayó  arå listeä belo÷ usinç onlù thå lasô fouò characteró oæ thå filename® Alì  MEØ overlayó arå nameä witè thå formaô  MXO-????.AQM®  Theså descriptionó werå takeî froí thå sourcå codå listingó anä maù noô bå  totallù accurate¬  buô shoulä aô leasô givå yoõ aî ideá whicè 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° -- Kayprï (Z8° SIO© (for uså w/externaì modeí 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 Externaì modeí overlayó (MUSÔ bå useä witè seriaì porô 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 Š 2 "LINKING" MEX & OVERLAYS: 1© Determinå thå necessarù overlay(s© foò youò system/modem®  (Iæ nonå  oæ  thå overlayó seeí tï bå appropriate¬  yoõ maù  havå  tï writå youò own¬  geô onå oò twï existinç overlayó foò á guidå anä adapô  iô  aó needeä usinç aî existinç modeí overlaù  oò  prograí which already runs on your system as a guide.) 2©  Oncå yoõ havå determineä thå appropriatå overlaù tï  utilize¬ yoõ  shoulä  makå surå yoõ havå á recenô copù oæ MEX.COM  (latesô versioî  aó oæ thå 10/5/8´ thió waó writteî waó  MEX112.COM©  anä itó associateä MEXPAT.AQÍ file® (MEXPAT11.AQÍ witè MEX111/MEX112© Bå  surå tï geô thå MEX11DOC.TQà anä MEX11DOC.WÑ fileó whicè makå uð thå manuaì foò MEX®  You'lì alsï neeä MEX.HQÐ anä  MLOAD21.CQÍ (oò  currenô  version©  anä youò selecteä  overlaù  file®  (NOTEº Uninstalleä  MEØ  sometimeó  wilì havå á ".BIN¢  filå  typå  (foò binary) to differentiate it from an installed .COM file.) 3©  Unsqueezå  thå MEXPAÔ anä overlaù fileó (usinç USÑ oò  NSWP)® Alsï  unsqueezå MLOAD21.CQÍ anä MEØ itselæ iæ squeezeä (somå  MEØ versionó  arå releaseä aó .CQÍ files)®  Unsqueezå MEX.HQÐ tï  geô MEX.HLP while you're at it.. (And the MEX11DOC files too.) 4© Ediô overlay(s)¬  selectinç anù necessarù options¬  "tweak¢ aó needed for your system. (You may have to "experiment".) 5) Edit MEXPAT file to select default STAT and other MEX options. 6©  Uså  ASÍ  oò MAà tï assemblå thå overlaù  anä  MEXPAÔ  files¬ giving .HEX files (do NOT "LOAD" these to make .COM files!). 7© Uså MLOAÄ tï loaä thå overlay(s© anä MEXPAÔ filå aó showî  iî 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) NOTEº  Thå ordeò oæ thå inpuô fileó (oneó tï thå righô oæ thå "=¢ equaì sign© ió important®  Thå uninstalleä MEØ filå musô bå firsô (anä  shoulä  includå  thå .COM/.BIΠ extension©  anä  shoulä  bå followeä  bù thå modeí board/seriaì porô overlaù anä (iæ á seriaì porô witè á supporteä externaì modem© thå externaì modeí overlay¬ witè  thå "MEXPATCH¢ filå last®  (Iæ youò overlaù  containó  botè seriaì porô anä modeí controì code¬  yoõ neeä iô anä thå MEXPATCÈ file only.) 8© Iæ yoõ enablå thå INI.MEØ function¬  ediô á INI.MEØ filå (witè your favorite editor) with your desired initialization commands. 9© Iæ alì wenô well¬ yoõ shoulä havå á workinç versioî oæ MEX.COÍ anä  yoõ caî theî reaä thå manuaì anä uså HELÐ (iî MEX© foò  morå info on how to set up your PHONE list, etc. Happy modeming!! Š 3 IN SUMMARY: Geô yeò files¬  ediô thå overlays¬  MLOAÄ 'eí anä go¡ Soundó easy¬  anä  iô usuallù is¬  buô don'ô geô discourageä iæ yoõ havå 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.) 4