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for ARM devices
OS_ReadC
Programmer's Reference Manuals
» Part 15 – SWI Calls
» OS
» OS_ReadC
OS_ReadC
(SWI &04)
| Entry | |
|---|---|
| - | - |
| Exit | |
|---|---|
| R0 | ASCII (if C flag is 0), or |
| Error number (if C flag is 1), or | |
| &1B = escape |
Use
The purpose of this call is to read a character from the input stream.
Notes
It waits to get the next character, i.e. you will only get the control back when, for example, a key is pressed.
The source for the input stream can be read with OS_Byte 177.
If cursor editing is enabled (see OS_Byte 4), then pressing a cursor keys will start cursor editing.