A fast and easily customised operating system
for ARM devices
OS_InstallKeyHandler
Programmer's Reference Manuals
» Part 15 – SWI Calls
» OS
» OS_InstallKeyHandler
OS_InstallKeyHandler
(SWI &3E)
| Entry | |
|---|---|
| R0 | 0 = read address of current keyboard handler |
| 1 = read keyboard ID from keyboard (1 for UK) | |
| >1 = set address of new keyboard handler |
| Exit | |
|---|---|
| R0 | Address of new/old keyboard handler, or keyboard number |
Use
The purpose of this call is to install the keyboard handler to replace the default code, or read the address of the current one.