My question is... how does the TODR get reset from the value read by the
ROM to the ELN value with no intervening write? Did it wrap around?
Seems unlikely; it shouldn't wrap around before next year.
I suspect it's the "OS agnostic mode" that was added in 4.X. According
to the writeup,
.
This mode is enabled by attaching the TODR to a
battery backup state file for the TOY clock
(i.e. sim> attach TODR TOY_CLOCK). When operating
in OS Agnostic mode, the TODR will initially start
counting from 0 and be adjusted differently when an
OS specifically writes to the TODR. On the first OS
boot with an attached TODR VMS will prompt to set
the time unless the SYSGEN parameter TIMEPROMPTWAIT
is set to 0.
So I'd like to see what the behavior is <without> the clock file attached.
Or you can post a pointer to the disk image you're using, and I'll try
it on 3.10. I saw the ELN kits on 9track.net, but I don't know which one
to use.
/Bob
On 12/15/2018 3:08 PM, simh-requ...@trailing-edge.com wrote:
DBG(1041144)> CLK REG: todr_rd(ROM) - TODR=0xC3AA5B84
DBG(7056415)> CLK REG: todr_rd() - TODR=0x132A4
DBG(7056419)> same as above (1 time)
DBG(9598293)> CLK REG: todr_rd() - TODR=0x133F0
DBG(11998428)> CLK REG: todr_rd() - TODR=0x13526
DBG(14398563)> CLK REG: todr_rd() - TODR=0x1365C
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