king@dciem.UUCP (Stephen King) (08/09/84)
Firstly, I'd like to thank those people who mailed me advice regarding my problem with the bubble memory. Your comments were greatly appreciated, but I still cannot PIP to the bubbles from disk. Here's a synopsis;: 1) The driver software for the bubble is patched directly into the BIOS. System calls are screened to see if the bubble is being accessed, and if so a jump is made to the appropriate routine. This works just fine. 2) I have tried filling the bubble memory entirely with 0xe5; this was necessary as even DIR would not work without a BAD SECTOR error. DIRI can now load a program, exit to cp/m and SAVE the program in the bubble, and have the program appear on a directory. Furthermore, I can load the program back from the bubble and run it with no problem. 3) I have double checked the DPH and DPB for the bubble but can see no problem there. The fact that STAT DSK: works for the bubble seems to indicate that the parameter header and block are OK. 4) I can use ED to create a file in the bubble memory only if I specify the new file name as a command trailer. Entering ED (cr) causes an error, namely DISK OR DIRECTORY FULL. 5) PIP, when attempted, responds with the message - NOFILE = aA:xxxx.COM, (where xxxx is the name of the file to be copied), yet STAT assures me that I have space left in the bubble pack. Can anyone point out where the problem may lieie - in the BIOS, in PIP or wherever? Thanks in advance, Steve.