From: Greg King (gngking_at_erols.com)
Date: 2004-09-09 19:52:43
From: Baltissen, GJPAA (Ruud); on Date: September 09, 2004, at 04:53 AM -0400 > > Having had some good help from Spiro, I thought it was time > to shift my brain into a higher gear. And, I got this: > M-R and M-W both have an option to tell how many bytes I want > to read/write. > ... > More worrying is the fact that I only can write up to 34 bytes at a time. > Is the computer to blame, or is the drive? In the case of CBM-HD, > I even didn't know what to do with this number; at this moment, > I keep on storing bytes until I get an EOI or an ATN. Hmmm, > I can adjust my test program a bit, and see what the effect is > on a real drive: I'll write more bytes then actually planned, > and then will read back the contents. Unlike in other commands, M-W's data is a part of the command. So, it must go through the command-buffer which has a limit of approximately 40 bytes (40 - 6 = 34). If you try to send more than that, then you will get back an error message that says that your command is too long. Message was sent through the cbm-hackers mailing list
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