SVC 122 (0A7A)

ESR(type2) SVC - is type 2.

Routes control to type 2 extended supervisor service routines based on a routing code in register 15.

Code	Macro		Description
00			Reserved.
01			Reserved.
02			Reserved.
03			Reserved.
04			Reserved.
05	EVENTS		Gets local lock.
	R0	Bytes have meaning as follows:
		Bytes	Meaning
		0	Flag bits
			1... ....	ENTRIES=n (create request); delete is requested if FC=5.
			.111 1111	Reserved.
		1	Reserved.
		2-3	Number of ENTRIES requested or zero.
	R1	Address of the EVENT table if a delete is requested.
06	Service Processor Call		Gets no locks.
	R1	Has the address of the parameter list. The two word parameter list has the following format: WORD 1 Address of the requester's data block. WORD 2 Address of the service processor command word.
07	Extended LINK macro is type 2, gets local and CMS locks. GTF data is:
	R1	Address of the parameter list. The 20 byte parameter list has the following format: Bytes Meaning 0-3 Address of the entry point name or directory entry. 4-7 DCB address or zero. 8-9 Reserved. 10 Flag byte: 80 - Directory entry present 40 - LSEARCH option specified 20 - ERRET address given 11 Reserved. 12-15 ERRET address or zero. 16-19 Address of user optional parameter list.
08	Extended XCTL macro is type 2, gets LOCAL and CMS locks. GTF data is:
	R1	Address of the parameter list. The 16 byte parameter list has the following format: Bytes Meaning 0-3 Address of the entry point name or directory entry. 4-7 DCB address or zero. 8-9 Reserved. 10 Flag byte: 80 - Directory entry present 40 - LSEARCH option specified 11 Reserved. 12-15 Address of user optional parameter list.
09	Extended LOAD macro is type 2, gets LOCAL and CMS locks. GTF data is:
	R1	Address of the parameter list. The 16 byte parameter list has the following format: Bytes Meaning 0-3 Address of the entry point name or directory entry. 4-7 DCB address or zero. 8-9 Reserved. 10 Flag byte: 80 - Directory entry present 40 - LSEARCH option specified 20 - ERRET address given 10 - Global load specified 08 - Load to fixed global storage requested 04 - Explicit load requested 02 - Delete at end-of-memory requested 01 - Load point address requested. 11 Reserved. 12-15 Explicit load address or the address where to place the load point.
	R15	00 - LOAD function was successful. If greater than 00 - LOAD function was not successful.
0A	Service Processor Interface SVC is type 2, gets no locks.
0B	ISNAXSVC is type 2, gets no locks.
0C	Reserved.
0D	CSVXCEFM is type 2, gets LOCAL lock.
0E	Reserved.
0F	CSVHFLDM is type 2, gets LOCAL lock.
10	CSVHFDLM is type 2, gets LOCAL lock.
11	Reserved.
12	Reserved.
13	Reserved.