Fujitsu SPARC64 V Manual Do Utilizador

Fujitsu

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SPARC JPS1 Implementation Supplement: Fujitsu SPARC64 V • Release 1.0, 1 July 2002

Floating-Point Deferred-Trap Queue (FQ) 24
IU Deferred-Trap Queue 24

Instructions 25

Instruction Execution 25

Data Prefetch 25
Instruction Prefetch 26
Syncing Instructions 27

Instruction Formats and Fields 28
Instruction Categories 29

Control-Transfer Instructions (CTIs) 29
Floating-Point Operate (FPop) Instructions 30
Implementation-Dependent Instructions 30

Processor Pipeline 31

Instruction Fetch Stages 31
Issue Stages 33
Execution Stages 33
Completion Stages 34

Processor States, Normal and Special Traps 35

RED_state 36
error_state 36

Trap Categories 37

Deferred Traps 37
Reset Traps 37
Uses of the Trap Categories 37

Trap Control 38

Trap-Table Entry Addresses 38

Trap Type (TT) 38
Details of Supported Traps 39

Trap Processing 39
Exception and Interrupt Descriptions 39

SPARC V9 Implementation-Dependent, Optional Traps That Are

Mandatory in SPARC JPS1 39