High Level Assembler - Opcodes overview, Extension Set E5

The table below lists all documented opcodes in extension set E5 for IBM mainframe processors. Each opcode links to a text section with some additional info on the pertinent opcode.

Opcode Assignments.

Remark:
Please note that the creation of descriptions for all individual instructions is an ongoing process. As yet no such descriptions have been created for the opcodes on this page.

Extension Set E5 - Control and MVS Assist

All instructions in this table are six bytes in length. The first byte always has a value of X'E5'. The second byte designates the exact instruction.
Opcodes that have no (known) mnemonic assigned to them are denoted by their hexadecimal opcode; these are explained below the table.

E5	_0	_1	_2	_3	_4	_5	_6	_7	_8	_9	_A	_B	_C	_D	_E	_F
0_	LASP	TPROT	STRAG X'E502'	X'E503'	X'E504'	X'E505'	X'E506'	X'E507'	X'E508'	X'E509'	MVCRL X'E50A'	X'E50B'	X'E50C'	X'E50D'	MVCSK	MVCDK
1_									DPFET
2_
3_
4_					MVHHI				MVGHI				MVHI
5_					CHHSI	CLHHSI			CGHSI	CLGHSI			CHSI	CLFHSI
6_	TBEGIN	TBEGINC
7_
8_
9_
A_
B_
C_
D_
E_
F_

X'E502' = Fix Page
X'E503' = SVC Assist
X'E504' = Obtain Local Lock
X'E505' = Release Local Lock
X'E506' = Obtain CMS Lock
X'E507' = Release CMS Lock
X'E508' = Trace SVC Interruption
X'E509' = Trace Program Interruption
X'E50A' = Trace Initial SRB Dispatch
X'E50B' = Trace I/O Interruption
X'E50C' = Trace Task Dispatch
X'E50D' = Trace SVC Return

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