WAIT/WAITR/PRTOV
macro - is type 1, gets LOCAL lock.
Calls module IEAVEWAT, entry point IGC001.
GTF data is:
- R15
- No applicable data.
- R0
- Count of the number of events being waited for. If the count is
zero, the wait is treated as a NOP. Bit 0 equals one indicates a long
wait.
- R1
- If positive, the address of the ECB being used. If complemented,
the address of a list of ECB addresses.
- PLIST
- The list is a series of fullwords, each containing the address
of an ECB.