InsV
Programmer's Reference Manuals
» Vectors
» Software Vector Numbers
» InsV
Insert Vector (20)
| Entry | |
|---|---|
| R1 | Buffer number plus flags: |
| b31 clear for Single Insertion, set for Block Mode | |
| b30 Used by the DeepKeys extension |
Single Insertion (R1b31 clear)
| Entry | |
|---|---|
| R0 | Code to be inserted |
| R1 | Buffer number, b31 clear |
| R9 | 20 (&14) vector number |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Preserved |
| R2 | Corrupted |
| C flag set if insertion failed | |
Block Insertion (R1b31 set)
| Entry | |
|---|---|
| R1 | Buffer number, b31 set |
| R2 | Pointer to data still to insert |
| R3 | Number of codes to insert |
| R9 | 20 (&14) vector number |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Preserved |
| R2 | Pointer to data still to insert |
| R3 | Number of bytes left to insert |
| C flag set if insertion failed | |
Use
This vector is called to place one or more bytes in a buffer.
Notes
All characters inserted into buffers are sent through this vector. Used by OS_Byte 138 and OS_Byte 153.
If called via OS_CallAVector then interrupts must be disabled first.
Note that Block Mode is not necessarily supported for all buffer numbers. The BufferManager module does support Block Mode for the buffers it manages (eg Serial, Printer, Mouse).
See also
Social
Follow us on
and
and
ROOL Store
Buy RISC OS Open merchandise here, including SD cards for Raspberry Pi and more.