Difference between revisions of "OSWORD &77"
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| − | OSWORD &77 (119) - Perform sector access to | + | OSWORD &77 (119) - Perform FM sector access to RAMFS |
==Specification== | ==Specification== | ||
Latest revision as of 10:28, 30 December 2016
OSWORD &77 (119) - Perform FM 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.
