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OS_Byte 160
Programmer's Reference Manuals
» Part 15 – SWI Calls
» OS
» OS_Byte
» OS_Byte 160
OS_Byte 160
(SWI &06)
| Entry | |
|---|---|
| R0 | 160 (&A0) |
| R1 | VDU variable |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | value of variable |
| R2 | value of next variable (entry R1 + 1) |
Use
The purpose of this call is to read the VDU variable value.
Notes
This call is provided for compatibility with the BBC/Master 128, and reads various VDU variables. Note that it does not use the same numbers for variables as OS_ReadVDUVariables?, and that that SWI can read many more variables.
See also
- OS_Byte
- OS_Byte 160 VDU Variable Numbers
- OS_ReadVDUVariables?