SVC 73 (0A49)
SPAR macro - is type 3, gets LOCAL lock.
Calls module IGC0007C.
GTF data is:
- R15 and R0
- No applicable data.
- R1
- Address of the parameter list.
- PLIST up to 40 bytes.
- It is a series of 4-byte entries. First entry has format:
- Bytes
- Contents
- 0
- Priority specified for the attention routine by the SPAR macro instruction.
- 1
- Reserved.
- 2-3
- Number of words in the parameter list.
Each additional entry contains the GACB address specified by the SPAR macro instruction.