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OS_Word 1
Programmer's Reference Manuals
» Part 15 – SWI Calls
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» OS_Word
» OS_Word 1
OS_Word 1
(SWI &07)
| Entry | |
|---|---|
| R0 | 1 |
| R1 | Pointer to 5 byte Buffer |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Preserved |
Use
The purpose of this call is to read the system clock.
Notes
This SWI reads the system clock. On exit, the buffer contains five byte system clock, with LSB first.
The clock is incremented 100 times a second, and reset on a hard break.
To write to system clock, use OS_Word 2.