PRIMŠ i th prim numbe teste illustrate i th Ja 8 issu 
o BYTE   di u encrypt decryp an th ke generato a wel 
bu a no submittin the a decryp wil no wor properl an 
th syste i no practica du t spee limitations  Anyon 
reall wantin m wor ca writ m directly..  Followin ar 
som lesson learned.

ɠ use th informatio i th Byt articl t ge  syste 
runnin tha encrypted/decrypte whol file instea o line an 
blocks   ra thi u i Microsof BASI o th machin a wor 
whic ha a 8086  Du t spee problems eve o tha 8mh 
machine  looke fo severa alternatives particularl fo th 
decryptio algorithm  O th language available onl BASI ha 
extende precisio arithmetic..   explore th possibilit o 
usin th FIXE routine supplie b Ithaca bu foun severa 
unexplaine bugs  Als go on fi fro Ithaca bu i didn' 
hel  lot  The  discovere th UNIT stuf i th librar 
disc  Th 808 machin ha  Pasca compile o it bu i i 
wier -- fil I/ i eve wors tha Z  Bu th UNIT stuf i 
fairly standard Pascal and should be portable...

UNIT i nicel implemente an commented   foun ver littl 
troubl makin th routine work  The i al se u fo us a 
externall compile files Th strateg o stabilizin th mai 
progra earl an puttin al th wor i a externa fil reall 
pay off  UNIT i  BI se o procedure an yo don' wan t 
recompil an reassembl i an mor tha necessary(watc you 
dis space).

The assets to UNIT1 are:
     - al se u t implement  Eve  dumm lik m ca figur 
it out and get things to run.
     - intege arithmetic complet wit DI an MO function i 
implemented.  

Th chie drawbacare: 
     - routine lac th abilit t translat bac t string o 
reals
     - the reall slo thing down  Interprete BASIà doubl 
precision is much faster.
     - yo ge fifteen no 1 digits o precision  Thi ra 
the decrypt program aground.
     - fo som unexplaine reason th getlon procedur mus b 
followed by 2 carriage returns...

I carried things this far for some other reasons:
     - I wanted to wring out the UNIT1 features.
     - Mayb som o yo ca ge som valu fro m work  UNIT 
is not very noticable in the library, but pretty nifty.

B prepare t watc  ver dum progra fo  ver lon time  
Fo th BASI versio a work  modifie th progra t lo goo 
prim number t  disc clos th fil an kee running  Tha 
wa yo star th progra an g home  I take  ^ t brea 
th program(mak sur th fil i close s yo don' los it).