(Generational Logic and Time Interval Cadence Knower) **
A real time clock PC BIOS Companion ROM for XT machines supporting many popular RTCs and ISA I/O adapters.
GLaTICK eliminates the need for DOS-based RTC clock drivers/programs letting your supported RTC "just work" like later PCs.
- Implements
INT 1Ah
RTC functionality for seamless clock support. Real time clock is set and read by DOS - no software needed! - Support for many popular ICs including:
- DS12x85/MC146818 used by RTC ISA 8 bits, NuXT, AT/CMOS (Ports
70h
,240h
,2C0h
) - MM58167/UM82C8167 used by SixPakPlus V1, Turbo 33-XT, Many clone I/O boards (Ports
2C0h
,240h
,340h
) - RP5C15 used by SixPakPlus V2
- MSM5832 used by Quadram, DTK PII-125
- MSM6242 used by Intel Above Board and other MSM-6242 boards
- DS1216x/DS1315 SmartWatch "No-Slot" ROM socket clocks
- DS12x85/MC146818 used by RTC ISA 8 bits, NuXT, AT/CMOS (Ports
- Any BIOS that supports Option ROMs
- A supported RTC card (of course)
- DOS 3.3 or later **
- GLaTICK ROM image within the valid Option ROM address space. More info here.
SixPakPlus at 2C0h
on GLaBIOS:
![](https://private-user-images.githubusercontent.com/23486433/237820205-8894315f-b227-4874-ae89-5021d0767b31.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.woh1LStAZWkJjkCzYPaunvnyPvhLyVj_eEQLt_tgKs0)
Using MASM 5: MAKE GLATICK.MAK
.
Using MASM 6: NMAKE GLATICK.NMK
.
The included OPT2ROM.COM
will convert the produced EXE file to a 2 KiB ROM file.
- Support for additional RTCs including:
- MSM-58321
- Dallas DS1644 Timekeeper
- @PickledDog, for the name
Copyright © 2023-24, 640KB and contributors.