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BALR is a Branch and Link Register Instruction for use in transferring to different locations for code running in 24- 31, or 64-bit mode. It stores the address of the next sequential instruction in the target register, then jumps to the address specified in the source_register, unless register 0 is specified, in which case no branch is
This document is intended to be used as a quick reference for the mainframe Assembler programmer using HLASM (High Level Assembler) or Assembler/H. Instruction Overview. A, Add. AH, Add Halfword. AL, Add Logical. ALR, Add Logical Registers. AP, Add Packed (Decimal). AR, Add Registers. BAL, Branch and Link.
2) BAL (branch-and-link) is the name of a System/360/370 assembler language instruction.
The real value to this program is when it is animated using the 370 Assembler Option of Mainframe Express provided by Micro Focus. . Branch and Link, the BAL and BALR Instructions BAL R9,*+4 * Load R9 with LINK ADDR,BRANCH (24-BIT) I@BALR EQU * BALR R9,R0 * Load R9 with LINK
The branch instructions for the 360 Series mainframe computer come in two types: instructions which branch where a return address is provided (such as a subroutine call) and one-way branches where no return address is provided. All branch instructions come in 3 forms: No Branch At all, otherwise known as
After execution of the subroutine, the unconditional branch (BR R8) at the end of the subroutine returns control at the. MVC instruction. BAS replaces an older instruction called “BAL" which stands for “Branch and Link". Both of these instructions load the address of the next instruction into operand 1. The difference in their.
In 24-bit addressing mode, BAL and BALR work the same way as they do when executed on a processor running in 370 mode. BAL and BALR put link When executing in 31-bit addressing mode, BAL and BALR do not save the instruction length code, the condition code, or the program mask. IPM (insert program mask)
Subroutines within the addressable area of a CSECT are generally invoked using BAL (or BAS). Subroutines in another program, in another CSECT, or past the end of common addressability generally are invoked using BALR or BASR.
PL/I & Assembler: Can any one explain me the exact differences between BAL,BASSM,BAS? IF you give BAL 12,Rout means. First operand specified the address of NSI( Next sequential instruction will be loaded into 12 register and the second operand specifies that Rout -> it will branch to Rout BALR 12
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