For instructions with two operands, the first (lefthand) operand is See Chapter 3, Instruction Set Mapping forĪ mapping between Solaris x86 assembly language mnemonics and the equivalent IntelĬan have zero to three operands. Instruction operands are 64–bit s (“short”) Instruction operands are registers only l (“long”) The assembler recognizes the following suffixes for x87 floating-point instructions: Operand types and their instruction suffixes are: b With no type suffix, the operand type defaults to long. Type information from the instruction name and the suffix. That is, the Solaris assembler derives its operand However, the Solaris x86 mnemonics might appear to be differentīecause the Solaris mnemonics are suffixed with a one-character modifier that specifies Most instructions, the Solaris x86 assembler mnemonics are the same as the Intel The hexadecimal representation of the instruction value. Used interchangeably in this document to refer to the names of x86 instructions.Īlthough the term opcode is sometimes used as a synonym for instruction, this document reserves the term opcode for See Statements for the description of labels InstructionsĪn instruction is a statement that is executed at runtime. Addresses are the locations in memory of specified data. Operands are entities operated upon by the instruction. Instructions are operations performed by the CPU.
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