OS_Byte 25
OS SWI Calls
» OS_Byte
» OS_Byte 25
OS_Byte 25
(SWI &06)
| Entry | |
|---|---|
| R0 | 25 (&19) |
| R1 | Group to restore |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Corrupted |
| R2 | Corrupted |
Use
The purpose of this call is to reset the definitions for a group of characters in the VDU font.
Notes
This call restores the characters eventually redefined by the VDU 23,32-355 command in the range of 32-255. Which characters are to be reset is given in R1.
To reset the entire VDU font, use OS_Byte 20.
See also
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