Posted By
Csabo
on 2019-01-15
18:24:11
|  Re: Realtime clock preservation
Right, so TI value - SVS, do you have the place in the ROM that updates this value by any chance?
The reason I'm asking is this: if it's from IRQ, the you're right, every SEI/CLI will affect this, so it's pretty unreliable, especially if there's disk operations. If it's done using the timers though... Well, so that's my idea anyway, perhaps somehow this could be done from BASIC bypassing TI altogether, using one of the 3 timers. Haven't looked more into it though, just an idea.
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