OSWORD &77
Revision as of 18:51, 13 July 2009 by Jgharston (talk) (Created page with 'Category:OSWORD OSWORD &77 (119) - Perform sector access to RamFS ==Specification== {| cellpadding="0" cellspacing="0" | || align="left" | '''On entry:''' || align="left" |...')
OSWORD &77 (119) - Perform sector access to RamFS
Specification
| On entry: | On exit: | |
| Control block | ||
| XY?&00 | Drive | |
| XY!&01 | Data address | |
| XY?&05 | Command | |
| XY?&06 | Number of parameters (n) | |
| XY+7... | Parameters | |
| XY?(7+n) | Result | |
No contents of the control block should be relied upon on exit other than the result byte. Some systems update the control block, some systems do not.
This call takes and returns exactly the same parameters and results as OSWORD &7F but accesses RAMFS. If the specified drive is not present then a result of &1E (not present) is returned. If the command is not supported, then a result of &?? (bad command) is returned.
