Difference between revisions of "Glossary"

Revision as of 01:45, 27 July 2014

0 a b c d e f g h i j k l m n o p q r s t u v w x y z

Belt – provides the functionality of general purpose registers
Belt Position/Belt Location – the read only data source for machine operations
Bundle – a collection of instructions that get fetched from memory together

EBB – Extended Basic Block
Exit – a point where the instruction stream can leave the EBB

Implicit Zero - uninitialized memory loads are implicitly zero
Instruction – a collection of operations that get executed together
Instruction Stream – a sequence of instructions, the Mill has 2 working in parallel

Metadata – tags attached to belt slots that describe the data in it

None – undefined data in a slot that is silently ignored by operations
NaR – Not a Result, undefined data that traps when used in certain operations

Operation – the most basic semantically defined hardware unit of execution

Phase - sequenced execution of different operations within one instruction
PLB – Protection Lookaside Buffer
Portal – a cross turf call destination
Protection Region – specified continuous memory region with attached permissions

Replay - the way the hardware restores machine state after being interrupted

Scratchpad – Temporary buffer for operands from the belt
SAS – Single Address Space
Service – a stateful call interface that can cross protection barriers
Specializer – turns general mill assembly into hardware specific machine instructions
Spiller – securely manages temporary memory used by certain operations in hardware
Stacklet – hardware managed memory line used in fragmented stacks

TLB – Translation Lookaside Buffer
Turf – memory protection domain on the Mill, a collection of regions