QDOS Internals

Anything you never knew you wanted to know about the Sinclair QL.

Trace: • rrtc

qdosmsq:traps:trap_1:rrtc

Table of Contents

MT_RCLCK/SMS_RRTC
- Errors
- Notes
- Example

MT_RCLCK/SMS_RRTC

This trap reads the real-time clock.

Call Parameters		Return Parameters
D0.B	$13	D0.L	Corrupted?
D1.L		D1.L	Time (internal form).
D2.L		D2.L	Corrupted.
A0.L		A0.L	Corrupted.

Errors

No errors are returned by this trap.

Notes

All registers not shown above are not used on entry and are preserved on exit.
The number returned in D1.L is the number of seconds since 00:00 1st January 1961.
Note that the vectors CN_DATE and CN_DAY can be used to convert the date to ASCII.

Example

The example here shows the use of this trap call.

qdosmsq/traps/trap_1/rrtc.txt · Last modified: 2009/02/25 16:18 by george.gwilt