High Level Assembler - Opcodes overview, Floating Point Extension Set ED

The table below lists all documented opcodes in extension set ED 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 ED - Floating Point

All instructions in this table are six bytes in length. The first byte always has a value of X'ED', the second byte designates the exact instruction.

ED	_0	_1	_2	_4	_5	_6	_7	_8	_9	_A	_B	_C	_D	_E	_F
0_				LDEB	LXDB	LXEB	MXDB	KEB	CEB	AEB	SEB	MDEB	DEB	MAEB	MSEB
1_	TCEB	TCDB	TCXB	SQEB	SQDB		MEEB	KDB	CDB	ADB	SDB	MDB	DDB	MADB	MSDB
2_				LDE	LXD	LXE								MAE	MSE
3_				SQE	SQD		MEE	MAYL	MYL	MAY	MY	MAYH	MYH	MAD	MSD
4_	SLDT	SRDT						SLXT	SRXT
5_	TDCET	TDGET		TDCDT	TDGDT			TDCXT	TDGXT
6_				LEY	LDY	STEY	STDY
7_
8_
9_
A_								CZDT	CZXT	CDZT	CXZT	CPDT	CPXT	CDPT	CXPT
B_
C_
D_
E_
F_

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