OS_Byte 201 (changes)
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Programmer's OS Reference SWI Manuals Calls
» Part OS_Byte 15 – SWI Calls
» OS_Byte 201OS
» OS_Byte
» OS_Byte 201
OS_Byte 201
(SWI &06)
| Entry | |
|---|---|
| R0 | 201 (&C9) |
| R1 | EOR value |
| R2 | AND value |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Flag before being overwritten |
| R2 | Corrupted |
Use
The purpose of this call is to enable or disable the keyboard.
Notes
This call enables or disables the keyboard. 0 will enable the keyboard (as normal). Any other value will stop the interrupt routine inserting keypresses key presses into the keyboard buffer.
To read or write information about the status of the keyboard, please use OS_Byte 202.
See also
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