[BBC-Micro] Some ADFS / WDC 1770 questions.

BRAHMS dominic at brahms.demon.co.uk
Thu Nov 9 19:45:23 GMT 2006


I've been poking around all day and have come up with the following questions (I'm attempting to write and adf/adl to adfs disc writer/formatter):

1) How easy is it to format discs using the WDC 1770? Has anybody got any sample code?

2) When accessing the disc using OSWORD&72 I have to add 4 to the drive number (when mounted on drive 0) to access the floppy drive 0 ( is this "rule" correct?)

3) In the documentation it indicates that the drive in the OSWORD control block is ORed with the "current" drive number - what is the best thing to do here if I want to read / write sectors on drive 0 if drive 4 is current - do I really have to change drives to 0 - if so how?

Thanks in advance for any help

Dom
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