C macros for RISC OS software interrupts
| File | Size | Last modified | Description | Requirements and optionals | |
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Size unavailable | Timestamp unavailable | Headers and generation tool | RISC OS | |
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Size unavailable | Timestamp unavailable | Headers and generation tool; for cross-compilation to RISC OS | ISO C90 | |
This is a collection of C header files that define macros for RISC OS SWI numbers. RISC OS allows a name to be associated with each number, and has a facility for converting between names and numbers, but this is not normally accessible from C (or at least, it's not portably accessible across different compilers).
In these header files, each macro is the name of a SWI with the value of the SWI's number. For example, the directive:
#include <riscos/swi/ColourTrans.h>
…will define macros for all SWIs whose names begin with ??ColourTrans_??, such as ColourTrans_ReturnGCOLForMode, and nothing else. The
macro's value is the SWI number; 0x40745 in this case. The X form is
similarly defined.
A small utility is included to generate new or up-to-date header files for macros in both X and non-X forms.
<riscos/swi/SWI-name prefix.h> — SWI
codes
<riscos/services.h> — module service codes
<riscos/vectors.h> — software vectors
<riscos/error/prefix.h> — error
numbers
<riscos/wimp/events.h> — WIMP event codes
<riscos/wimp/messages.h> — standard WIMP message
codes
<riscos/wimp/message/prefix.h> —
additional WIMP messages
