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for ARM devices
OS_Byte 135
OS SWI Calls
» OS_Byte
» OS_Byte 135
OS_Byte 135
(SWI &06)
| Entry | |
|---|---|
| R0 | 135 (&87) |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | ASCII value of character (0 if unreadable) |
| R2 | Mode Specifier |
Use
The purpose of this call is to return the screen mode and ASCII code of the character at the text cursor position.
Notes
If cursor editing is in progress, it returns the character code returned by the character at the input cursors position. i.e. the character would be copied as input the next time the Copy key is pressed).
If a numbered mode is used, the returned mode number never has bit 7 set, even if it’s a shadow mode.
See also
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