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OS_Byte 145
Programmer's Reference Manuals
» Part 15 – SWI Calls
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» OS_Byte 145
OS_Byte 145
(SWI &06)
| Entry | |
|---|---|
| R0 | 145 (&91) |
| R1 | Buffer number |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Preserved |
| R2 | Byte removed |
| C flag set if buffer was empty on entry, clear if byte was successfully removed | |
Use
The purpose of this call is to extract the next byte from the given buffer
Notes
The buffer number is not validated – undefined results (rather than an error) occur if a bad buffer number is passed.