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The Mill is a new general purpose processor architecture.
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It intends to run general purpose code at <abbr title="Digital Signal Processor">DSP</abbr> speed and power requirements.
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A number of new innovations and established old technologies used in a new context need to be employed to achieve this goal.
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<table style="width: 50%; padding: 2% 5%; font-size: 12pt">
 
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<tr><td>'''[[Architecture]]'''</td><td>'''[[Infrastructure]]'''</td><td>'''[[Community]]'''</td></tr>
<div style="font-size: 10pt; font-weight: bold;" id="a">a</div>
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<tr><td>[[Belt]]</td><td>[[Synthesis]]</td> <td>[[Software]]</td></tr>
 
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<tr><td>[[Encoding]]</td><td>[[Compiler]]</td></tr>
<div style="font-size: 10pt; font-weight: bold;" id="b">b</div>
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<tr><td>[[Memory]]</td><td>[[Specializer]]</td></tr>
[[Belt]] – provides the functionality of general purpose registers<br />
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<tr><td>[[Metadata]]</td><td>[[Debugger]]</td></tr>
[[Belt Slot]] – the read only data source for machine operations<br />
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<tr><td>[[Protection]]</td><td>[[Simulator]]</td></tr>
[[Bundle]] – a collection of instructions that get fetched from memory together<br />
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<tr><td>[[Prediction]]</td><td>[[Specification]]</td></tr>
 
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<tr><td>[[Execution]]</td><td>[[conAsm]]</td></tr>
<div style="font-size: 10pt; font-weight: bold;" id="c">c</div>
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<tr><td>[[Instruction Set]]</td><td>[[genAsm]]</td></tr>
 
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</table>
<div style="font-size: 10pt; font-weight: bold;" id="d">d</div>
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<div style="font-size: 10pt; font-weight: bold;" id="e">e</div>
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[[EBB]] – Extended Basic Block<br />
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[[Exit]] – a point where the instruction stream can leave the EBB<br />
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<div style="font-size: 10pt; font-weight: bold;" id="f">f</div>
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<div style="font-size: 10pt; font-weight: bold;" id="g">g</div>
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<div style="font-size: 10pt; font-weight: bold;" id="h">h</div>
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<div style="font-size: 10pt; font-weight: bold;" id="i">i</div>
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[[Implicit Zero]] - uninitialized memory loads are implicitly zero<br />
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[[Instruction]] – a collection of operations that get executed together<br />
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[[Instruction Stream]] – a sequence of instructions, the Mill has 2 working in parallel<br />
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<div style="font-size: 10pt; font-weight: bold;" id="j">j</div>
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<div style="font-size: 10pt; font-weight: bold;" id="k">k</div>
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<div style="font-size: 10pt; font-weight: bold;" id="l">l</div>
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<div style="font-size: 10pt; font-weight: bold;" id="m">m</div>
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[[Metadata]] – tags attached to belt slots that describe the data in it<br />
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<div style="font-size: 10pt; font-weight: bold;" id="n">n</div>
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[[None]] – undefined data in a slot that is silently ignored by operations<br />
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[[NaR]] – Not a Result, undefined data that traps when used in certain operations<br />
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<div style="font-size: 10pt; font-weight: bold;" id="o">o</div>
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[[Operation]] – the most basic semantically defined hardware unit of execution<br />
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<div style="font-size: 10pt; font-weight: bold;" id="p">p</div>
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[[Phase]] - sequenced execution of different operations within one instruction<br />
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[[PLB]] – Protection Lookaside Buffer<br />
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[[Portal]] – a cross turf call destination<br />
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[[Protection Region]] – specified continuous memory region with attached permissions<br />
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<div style="font-size: 10pt; font-weight: bold;" id="q">q</div>
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<div style="font-size: 10pt; font-weight: bold;" id="r">r</div>
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[[Replay]] - the way the hardware restores machine state after being interrupted<br />
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<div style="font-size: 10pt; font-weight: bold;" id="s">s</div>
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[[SAS]] – Single Address Space<br />
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[[Service]] – a stateful call interface that can cross protection barriers<br />
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[[Specializer]] – turns general mill assembly into hardware specific machine instructions<br />
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[[Spiller]] – securely manages temporary memory used by certain operations in hardware<br />
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[[Stacklet]] – hardware managed memory line used in fragmented stacks<br />
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<div style="font-size: 10pt; font-weight: bold;" id="t">t</div>
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[[TLB]] – Translation Lookaside Buffer<br />
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[[Turf]] – memory protection domain on the Mill, a collection of regions<br />
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<div style="font-size: 10pt; font-weight: bold;" id="u">u</div>
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<div style="font-size: 10pt; font-weight: bold;" id="v">v</div>
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<div style="font-size: 10pt; font-weight: bold;" id="w">w</div>
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<div style="font-size: 10pt; font-weight: bold;" id="x">x</div>
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<div style="font-size: 10pt; font-weight: bold;" id="y">y</div>
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<div style="font-size: 10pt; font-weight: bold;" id="z">z</div>
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Latest revision as of 08:51, 14 January 2015

The Mill is a new general purpose processor architecture. It intends to run general purpose code at DSP speed and power requirements. A number of new innovations and established old technologies used in a new context need to be employed to achieve this goal.

ArchitectureInfrastructureCommunity
BeltSynthesisSoftware
EncodingCompiler
MemorySpecializer
MetadataDebugger
ProtectionSimulator
PredictionSpecification
ExecutionconAsm
Instruction SetgenAsm