HLASM Language Reference

Alternative Mnemonics for some Branch Relative Instructions
| Jump on Condition Long
JLU label Unconditional Jump Long RIL BRCL 15,label
JLNOP label No operation RIL BRCL ,label
JLH label Jump Long on High RIL BRCL 2,label
JLL label Jump Long on Low RIL BRCL 4,label
JLE label Jump Long on Equal RIL BRCL 8,label
JLNH label Jump Long on Not High RIL BRCL 13,label
JLNL label Jump Long on Not Low RIL BRCL 11,label
JLNE label Jump Long on Not Equal RIL BRCL 7,label
JLP label Jump Long on Plus RIL BRCL 2,label
JLM label Jump Long on Minus RIL BRCL 4,label
JLZ label Jump Long on Zero RIL BRCL 8,label
JLO label Jump Long on Overflow RIL BRCL 1,label
JLNP label Jump Long on Not Plus RIL BRCL 13,label
JLNM label Jump Long on Not Minus RIL BRCL 11,label
JLNZ label Jump Long on Not Zero RIL BRCL 7,label
JLNO label Jump Long on Not Overflow RIL BRCL 14,label
Notes:
1. D=displacement, X=index register, B=base register, R=register containing branch address
2. The addresses represented are explicit address (see ▌4▐). However, implicit addresses can also be used in this type of
instruction.
3. Avoid using BM, BNM, JM, and JNM after the TMH or TML instruction.
Figure 22 (Part 3 of 3). Extended Mnemonic Codes
| Alternative Mnemonics for some Branch Relative Instructions
| For some branch relative statements, there are alternative mnemonics. These are:
| Instruction Alternative Description
| --------------------------------------------------------------
| BRAS JAS Branch Relative and Save
| BRASL JASL Branch Relative and Save Long
| BRCT JCT Branch Relative on Count
| BRCTG JCTG Branch Relative on Count
| BRXH JXH Branch Relative on Index High
| BRXHG JXHG Branch Relative on Index High
| BRXLE JXLE Branch Rel. on Index Low or Equal
| BRXLG JXLEG Branch Rel. on Index Low or Equal
Statement Formats
Machine instructions are assembled into 2, 4, or 6 bytes of object code according
to the format of each instruction. Machine instruction formats include the following
(ordered by length attribute):
Length Attribute Basic Formats
2 RR
4 RI, RS, RSI, RX, SI
6 SS
See the applicable Principles of Operation manual for complete details about
machine instruction formats. See also “Examples of Coded Machine Instructions”
on page 91.
When you code machine instructions, you use symbolic formats that correspond to
the actual machine language formats. Within each basic format, you can also code
Chapter 4. Machine Instruction Statements 83