izaya/collapseos
1
0
Fork 0
mirror of https://github.com/hsoft/collapseos.git synced 2024-12-24 14:28:06 +11:00
Code Issues Releases Wiki Activity

Fix mis-documentation

Browse Source
This commit is contained in:
Virgil Dupras 2019-10-04 13:52:14 -04:00
parent 8db1bdb245
commit 63d6cf0875
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
doc/blockdev.md
View File

@ -20,7 +20,7 @@ That tells `blockdev` that we're going to set up one device, that its GetC and
PutC are the ones defined by `acia.asm`.
If your block device is read-only or write-only, use dummy routines. `unsetZ`
is a good choice since it will return with the `Z` flag set, indicating an
is a good choice since it will return with the `Z` flag unset, indicating an
error (dummy methods aren't supposed to be called).
Each defined block device, in addition to its routine definition, holds a
@ -33,12 +33,12 @@ they should try to adhere to the convention, that is:
**GetC**: Get the character at position specified by `HL`. If it supports 32-bit
addressing, `DE` contains the high-order bytes. Return the result in
`A`. If there's an error (for example, address out of range), set `Z`.
This routine is not expected to block. We expect the result to be
`A`. If there's an error (for example, address out of range), unset
`Z`. This routine is not expected to block. We expect the result to be
immediate.
**PutC**: The opposite of GetC. Write the character in `A` at specified
position. `Z` set on error.
position. `Z` unset on error.
## Shell usage