View source for Instruction Set/neg

{{DISPLAYTITLE:neg}}
<div style="font-size:80%;line-height:90%;margin-bottom:2em">[[Speculation|speculable]]&nbsp;&nbsp;[[Encoding|exu stream]]&nbsp;&nbsp;[[Decode|exu block]]&nbsp;&nbsp;[[Phasing|compute phase]]&nbsp;&nbsp; operation&nbsp;&nbsp; [[Domains|in the logical value domain]]&nbsp;&nbsp; [[Condition Code|that produces condition codes]]<br />
'''aliases:''' negs negsv <br />
'''native on:''' [[Cores|all]]<br />
</div>

Integer arithmetic negation. Modulo overflow.

For arithmetic negation in two complement values the only value that can overflow is the smallest possible number for the width. In modulo overflow it remains the same value.

  


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<code style="font-size:130%"><b style="color:#050">neg</b>(<span style="color:#009">[[Domains#op|op]]</span> <span title="belt operand from ops window">x</span>) &#8594; [[Domains#op|op]] r<sub>0</sub></code>
<div style="font-size:80%;line-height:90%;margin-bottom:2em">'''operands:''' [[Operands#likeIdentity|like Identity [xx:x]]]
</div>
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{| class="mw-collapsible mw-collapsed wikitable" data-expandtext="&#9656;" data-collapsetext="&#9662;"
! [[Cores|Core]] || [[Slot|In Slots]]|| [[Latency|Latencies]]
|-
| [[Cores/Tin/Encoding#neg|Tin]] || E0 || 1
|-
| [[Cores/Copper/Encoding#neg|Copper]] || E0 E1 || 1
|-
| [[Cores/Silver/Encoding#neg|Silver]] || E0 E1 E2 E3 || 1
|-
| [[Cores/Gold/Encoding#neg|Gold]] || E0 E1 E2 E3 E4 E5 E6 E7 || 1
|-
| [[Cores/Decimal8/Encoding#neg|Decimal8]] || E0 E1 E2 E3 || 1
|-
| [[Cores/Decimal16/Encoding#neg|Decimal16]] || E0 E1 E2 E3 || 1
|}


[[Instruction_Set|Instruction Set, alphabetical]], [[Instruction Set by Category]], [http://millcomputing.com/instructions.html?collapse=7#ops Instruction Set, sortable, filterable]