Intel ITANIUM ARCHITECTURE - SOFTWARE DEVELOPERS MANUAL VOLUME 1 REV 2.3 Manual page 910

Instruction Reference
This chapter describes the function of each Itanium instruction. The pages of this
chapter are sorted alphabetically by assembly language mnemonic.
2.1 Instruction Page Conventions
The instruction pages are divided into multiple sections as listed in
three sections are present on all instruction pages. The last three sections are present
only when necessary.
instruction pages.
Table 2-1.
Section Name
Format
Description
Operation
FP Exceptions
Interruptions
Serialization
Table 2-2.
Font
regular
italic
code
code_italic
In the Format section, register addresses are specified using the assembly mnemonic
field names given in the third column of
the Description section assumes that the qualifying predicate is true (except for
instructions that modify architectural state when their qualifying predicate is false). The
test of the qualifying predicate is included in the Operation section (when applicable).
In the Operation section, registers are addressed using the notation reg[addr].field.
The register file being accessed is specified by reg, and has a value chosen from the
second column of
language field name or a register mnemonic. For the general, floating-point, and
predicate register files which undergo register renaming, addr is the register address
prior to renaming and the renaming is not shown. The field option specifies a named
bit field within the register. If field is absent, then all fields of the register are
accessed. The only exception is when referencing the data field of the general registers
Volume 3: Instruction Reference
Table 2-2 lists the font conventions which are used by the
Instruction Page Description
Assembly language syntax, instruction type and encoding format
Instruction function in English
Instruction function in C code
IEEE floating-point traps
Prioritized list of interruptions that may be caused by the instruction
Serializing behavior or serialization requirements
Instruction Page Font Conventions
(Format section) Required characters in an assembly language mnemonic
(Format section) Assembly language field name that must be filled with one of a range
of legal values listed in the Description section
(Operation section) C code specifying instruction behavior
(Operation section) Assembly language field name corresponding to a italic field listed
in the Format section
Table 2-3. The addr field specifies a register address as an assembly
Contents
Interpretation
Table 2-3. For instructions that are predicated,
2
Table 2-1. The first
3:11