Info Catalog
as: s390 Characters
as: S/390-Dependent
as: s390 Directives
9.40.3 Instruction syntax
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The assembler syntax closely follows the syntax outlined in Enterprise
Systems Architecture/390 Principles of Operation (SA22-7201) and the
z/Architecture Principles of Operation (SA22-7832).
Each instruction has two major parts, the instruction mnemonic and
the instruction operands. The instruction format varies.
· s390 Register Register Naming · s390 Mnemonics Instruction Mnemonics · s390 Operands Instruction Operands · s390 Formats Instruction Formats · s390 Aliases Instruction Aliases · s390 Operand Modifier Instruction Operand Modifier · s390 Instruction Marker Instruction Marker · s390 Literal Pool Entries Literal Pool Entries