Ds instruction in assembler #202#

mainframe assembler instructions
csect in assemblerltorg assembler directive
assembler dc al2
equ assembler directive
dc instruction in assembler
assembler define constant
z os assembler instruction set

The following table lists the assembler instructions by type, and provides the number of Program Control, AINSERT, AINSERT instruction DS, DS instruction. Unlike the DC instruction, the DS instruction causes no data to be assembled. Therefore, you do not have to specify the nominal value (sixth subfield) of a DS instruction operand. The DS instruction is the best way of symbolically defining storage for work areas, input and output buffers, and so on. Define alphanumeric fields and records using the DS and DC instructions,. •. Move alphanumeric fields using the MVC instruction,. •. Define alphanumeric Understand the basics of assembler programming on System z. – Use a variety of . Instruction address – this is the address of the next instruction to be executed. ? GPRs and FPRs .. Data is defined via the DC and DS HLASM directives. Machine instructions generate machine code, assembler directives do not. . Similar results apply to the use of the dc.w, ds.b and ds.w directives noted below. Extensions to the DC, DS, and EQU assembler instructions. The symbol table allows each symbol to have a program type and an assembler type assigned. The DC and DS assembler instructions allow you to specify a program type in the fourth subfield, following type_extension. that of the USING assembler instruction, or directive. It doesn't .. AGE DS F. Dummy AGE field for tables. NEXTENT DS 0H. Dummy next entry in a table. There are two specific classes of non–executable instructions: declaratives and .. The two primary data definition statements are the DS directive and the DC 16 Feb 2015 The USING Assembler Instruction and Implied Addresses . . . . . . . . . . . 122. 10.5. . 161. 13.1. Storage Areas: The DS Assembler Instruction.IBM documentation for the High-level Assembler is available over the web: . STM 14,12,12(13) RS. L 6,9(5,8) RX. Reading Mixed Instructions. X DS CL8.