High Level Assembler - Opcodes overview, Extension Set B3

The table below lists all documented opcodes in extension set B3 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 B3 - Floating Point

All instructions in this table are four bytes in length. The first byte always has a value of X'B3', the second byte designates the exact instruction.

B3 _0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F
0_ LPEBR LNEBR LTEBR LCEBR LDEBR LXDBR LXEBR MXDBR KEBR CEBR AEBR SEBR MDEBR DEBR MAEBR MSEBR
1_ LPDBR LNDBR LTDBR LCDBR SQEBR SQDBR SQXBR MEEBR KDBR CDBR ADBR SDBR MDBR DDBR MADBR MSDBR
2_         LDER LXDR LXER               MAER MSER
3_             SQXR MEER MAYLR MYLR MAYR MYR MAYHR MYHR MADR MSDR
4_ LPXBR LNXBR LTXBR LCXBR LEDBR LDXBR LEXBR FIXBR KXBR CXBR AXBR SXBR MXBR DXBR    
5_ TBEDR TBDR   DIEBR       FIEBR THDER THDR   DIDBR       FIDBR
6_ LPXR LNXR LTXR LCXR   LXR LEXR FIXR   CXR            
7_ LPDFR LNDFR CPSDR LCDFR LZER LZDR LZXR FIER               FIDR
8_         SFPC SFASR             EFPC      
9_         CEFBR CDFBR CXFBR   CFEBR CFDBR CFXBR          
A_         CEGBR CDGBR CXGBR   CGEBR CGDBR CGXBR          
B_         CEFR CDFR CXFR   CFER CFDR CFXR          
C_   LDGR     CEGR CDGR CXGR   CGER CGDR CGXR     LGDR    
D_ MDTR DDTR ADTR SDTR LDETR LEDTR LTDTR FIDTR MXTR DXTR AXTR SXTR LXDTR LDXTR LTXTR FIXTR
E_ KDTR CGDTR CUDTR CSDTR CDTR EEDTR   ESDTR KXTR CGXTR CUXTR CSXTR CXTR EEXTR   ESXTR
F_   CDGTR CDUTR CDSTR CEDTR QADTR IEDTR RRDTR   CXGTR CXUTR CXSTR CEXTR QAXTR IEXTR RRXTR

 

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