Thi librar contain thre program tha hav foun helpfu i usin th Micromin SB180FX Ther ar tw problem whic concer th us o RA disk an th stabilit thereof Micromin ha state tha ther i n guarente o preservatio o content o RA dis acros hardwar reset Th F adde ver larg tim constan t th rese circuit whic almos guarentee th los o conten o th ram du t interruptio o refresh O m board wa abl t solv thi proble b changin th 1 Moh resiste a R1 t 1 Koh resitor However fro tim t time th syste wil stil los th refresh an corrup memor (includin th ra disk). M solutio t thi i th se o program CRTS an TSTDSK Th CRTS progra wil writ 1 fil t th specifie dis wit predetermin rando pattern Th TSTDS wil rea tha fil o th specifie disk an repor differences pu TSTDS i m star alia fo eac RA disk follo eac MDINI wit CRTS fo th sam disk Thi seem t hav save m o som occasions. Th secon proble i tha th boo RO wil destro th firs tw byte o eac ban i th lowe addres area Th quic fi fo thi i th RAMFI program describe below. Program: FIXRAM Purpose: The SB180FX Boot ROM destroys two bytes at the beginning of each of the banks of memory. Since these could be in the middle of a file, or a directory, ths is not a good situation. FIXRAM will examine each RAM disk configured on an XBIOS system. If this disk contains an area that is susceptible to such corruption, it will create a file named !!!!!RAM.BAD in user area 31. This file will have allocated to it all of the allocation groups that are subject to this corruption. Use: The FIXRAM program should be run each time the MDINIT utility is run. This will insure that the disk cannot contain corruptible areas. If a group is flagged as allocated in the FIXRAM report, it may mean that you have a directory group in a corruptible area. Add 1 to the number of tracks before directory for this disk to solve this problem. Cautions: This program creates the file by putting groups in a file control block, forcing a write to the FCB, and then closing the file. This technique works with ZRDOS17, but may fail with other DOSes. Check the operation of this technique on your system by running it and then using DU3 to make sure the allocated groups agree with the report from FIXRAM. Error: This program will flag the first group in the upper memory part of the RAM disk as being a candidate. It is not, but this is a small price to pay for such safety.