OS_Module 22 (changes)
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OS SWI Calls
» OS_Module
» OS_Module 22
OS_ Module 22
(SWI &1E)
| Entry | |
|---|---|
| R0 | 22 (&16) |
| R1 | Module number, or 0 to start |
| R2 | Instance number |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Updated for next module/instance |
| R2 | Updated for next module/instance |
| R3 | Pointer to module? |
| R4 | Pointer to private word, or 0 if module was not correctly unlinked |
| R5 | Pointer to postfix string (the instantiation’s name) |
Use
The purpose of this call is to enumerate ROM modules. Unlike OS_Module 12, this call returns a pointer to the private word, instead of the value of the word.
Notes
If a module is not multiply instantiated, R5 will be returned pointing to the string “Base”.
This is call equivalent was to introduced the in*ModulesRISC command. OS 5.27.
Currently this SWI is unsupported by RISC OS 5 and is only available in versions of ROL’s OS.
See also
- Module Format?
- OS_Module
- OS_Module 12
- *Modules
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