RTCPushDM [D>=16]

Push the DM register into X.

Bits in the Day Mask register are assigned as follows:

bit 7 6 5 4 3 2 1 0
value   64 32 16 8 4 2 1
  - Sun Sat Fri Thr Wed Tue Mon

RTC documentation and tutorial

Dialect exclusions: Not available in dialects before 16.