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OS_Byte 118
Programmer's Reference Manuals
» Part 15 – SWI Calls
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» OS_Byte
» OS_Byte 118
OS_Byte 118
(SWI &06)
| Entry | |
|---|---|
| R0 | 118 (&76) |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Corrupted |
| R2 | Corrupted |
Use
The purpose of this call is to update the status of the keyboard LEDs to reflect that of the keyboard.
Notes
The settings of Caps Lock, Scroll Lock and Num Lock are held in a location referred to as the keyboard status byte. See OS_Byte 202 for details of this. Under normal circumstances they are shown by the LEDs on the keyboard, but these are not updated when the status is changed using OS_Byte 202. This call ensures that the current contents of the keyboard status byte are reflected in the LEDs.