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                                                    January, 1980

Dear MP/M 1.0 user:


Thió shipmenô includeó thå MP/Í 1.± release®  The  seconä releaså �
oæ  MP/Í haó beeî issueä aô nï chargå tï alì registereä owneró oæ �
MP/Í 1.° anä ió á diskettå leveì releaså.

Wå havå appreciateä youò support¬  criticism¬ anä suggestionó foò �
MP/M and believe that this is reflected in the MP/M 1.1 release.

Thå  mosô  significanô bugó correcteä iî thió  releaså  arå  witè �
regarä   tï  systeí  initializatioî  anä  thå  Z8°  complementarù �
registeò  set®   Thå  encloseä MP/Í User'ó Guidå correctionó  anä �
additions identify the impact of these changes on your XIOS.

Ne÷  additionó  iî thió releaså includå aî optionaì  bankeä  BDOÓ �
disë  filå  managemenô  modulå whicè caî bå useä tï  freå  uð  aî �
additionaì 3ë byteó oæ commoî areá memorù requiremenô iî  systemó �
witè  bankeä  memory®   PRÌ  versionó oæ thå  SPOOLeò  havå  beeî �
includeä  aó welì aó thå additioî oæ á procesó aborô PRÌ anä  RSÐ �
program®   Anotheò  samplå  XIOÓ  sourcå filå ió  provideä  whicè �
illustrateó  interrupô driveî I/Ï anä uså oæ XDOÓ  tï  facilitatå �
buffered console input.

Thå  seconä  printinç oæ thå MP/Í User'ó Guidå  incorporateó  thå �
encloseä manuaì correctionó anä additions.


Digital Research
Technical Support Staff


Enclosures:   MP/M User's Guide - Corrections and Additions
              MP/M 1.1 single density diskette