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| Short: | Vampire V4SA fast system-clock workaround |
| Author: | vclockfix amigaworld.de (Matthias Muench) |
| Uploader: | vclockfix amigaworld de (Matthias Muench) |
| Type: | util/time |
| Version: | 1.3 |
| Architecture: | m68k-amigaos |
| Date: | 2026-09-24 |
| Requires: | V4SA with Core 11350, AmigaOS 3.2.3, timer.device 46.1 |
| Download: | util/time/VClockFix.lha - View contents | | Readme: | util/time/VClockFix.readme |
| Downloads: | 2 |
|
VClockFix works around a boot-dependent AmigaOS clock error on the Vampire
V4 Standalone. On affected boots, timer.device selects CIAA TOD and the
system clock runs about 18.6 percent too fast after SAGA/RTG activation.
The program validates timer.device 46.1 and redirects the known bad timer
route to EClock in RAM. Unknown versions or layouts are left untouched.
Usage:
VClockFix
applies only the timer-route workaround. The optional command
VClockFix CALIBRATE
also selects the measured 709700 Hz EClock rate for the tested V4SA/Core
11350. A 24-hour SNTP test showed about 0.036 seconds of residual drift per
day, compared with approximately 38 seconds per day before calibration.
All changes are RAM-only and disappear after reboot. The archive includes
German and English documentation and checksums.
Other Cores are not tested. |
Contents of util/time/VClockFix.lha
PERMSSN UID GID PACKED SIZE RATIO METHOD CRC STAMP NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[Amiga] 1180 1494 79.0% -lh5- 26dc Sep 23 17:29 VClockFix-1.3.info
[Amiga] 2788 6336 44.0% -lh5- fe48 Sep 23 17:28 VClockFix-1.3/README.de
[Amiga] 2463 5697 43.2% -lh5- 9e2d Sep 23 17:29 VClockFix-1.3/README.en
[Amiga] 127 164 77.4% -lh5- f765 Sep 23 17:10 VClockFix-1.3/SHA256SUMS
[Amiga] 2962 5052 58.6% -lh5- cef4 Sep 23 17:10 VClockFix-1.3/VClockFix
---------- ----------- ------- ------- ------ ---------- ------------ -------------
Total 5 files 9520 18743 50.8% Sep 24 00:08
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