Difference between revisions of "Instruction Set/overflow"

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{{DISPLAYTITLE:overflow}}
 
{{DISPLAYTITLE:overflow}}
 
<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;<br />
 
<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;<br />
−
'''native on:''' [[Cores|all]]<br />
+
'''native on:''' [[Cores/Tin|Tin]] [[Cores/Copper|Copper]] [[Cores/Gold|Gold]] <br />
 
</div>
 
</div>
  
−
overflow gang predicate
+
Gets the overflow condition code of the ganged operation and puts it on the belt.
 +
<br />This is always available for condition code producing operations, regardless of overflow behavior.
 +
 
 +
<b>related operations:</b> [[Instruction_Set/eql|eql]], [[Instruction_Set/neq|neq]], [[Instruction_Set/gtr|gtr]], [[Instruction_Set/geq|geq]], [[Instruction_Set/lss|lss]], [[Instruction_Set/leq|leq]], [[Instruction_Set/carry|carry]], [[Instruction_Set/fault|fault]]
 +
 
 
----
 
----
−
<code style="font-size:130%"><b style="color:#050">overflow</b>([[Condition_Code|<span style="color:#666">conditioncode</span>]]) &#8594; [[Domains#op|op]] r<sub>0</sub></code>
+
<code style="font-size:130%"><b style="color:#050">overflow</b>() &#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 style="font-size:80%;line-height:90%;margin-bottom:2em">'''operands:''' [[Operands#likeIdentity|like Identity [xx:x]]]
−
</div>
+
&nbsp;&nbsp;'''native on:''' [[Cores/Copper|Copper]] [[Cores/Tin|Tin]] [[Cores/Gold|Gold]] </div>
 
<br />
 
<br />
  
 +
'''encoding:'''
 +
<code style="font-size:100%"><b style="color:#050">overflow</b>(<span style="color:#009">[[Domains#op|op]]</span> <span title="belt operand from ops window">op0</span>)</code>
 +
<br />
 
{| class="mw-collapsible mw-collapsed wikitable" data-expandtext="&#9656;" data-collapsetext="&#9662;"
 
{| class="mw-collapsible mw-collapsed wikitable" data-expandtext="&#9656;" data-collapsetext="&#9662;"
 
! [[Cores|Core]] || [[Slot|In Slots]]|| [[Latency|Latencies]]
 
! [[Cores|Core]] || [[Slot|In Slots]]|| [[Latency|Latencies]]
 
|-
 
|-
−
| [[Cores/Tin/Encoding#overflow|Tin]] || E0 E1 || 1
+
| [[Cores/Tin/Encoding#overflow|Tin]] || E1 ||  
 
|-
 
|-
−
| [[Cores/Copper/Encoding#overflow|Copper]] || E0 E1 || 1
+
| [[Cores/Copper/Encoding#overflow|Copper]] || E1 ||  
 
|-
 
|-
−
| [[Cores/Silver/Encoding#overflow|Silver]] || E0 E1 E2 E3 || 1
+
| [[Cores/Gold/Encoding#overflow|Gold]] || E1 ||  
 +
|}
 +
 
 +
----
 +
<code style="font-size:130%"><b style="color:#050">overflow</b>(<span style="color:#009">[[Domains#op|op]]</span> <span title="belt operand from ops window">op0</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]]]
 +
&nbsp;&nbsp;'''native on:''' [[Assembly|none]]</div>
 +
<br />
 +
 
 +
'''encoding:'''
 +
<code style="font-size:100%"><b style="color:#050">overflow</b>(<span style="color:#009">[[Domains#op|op]]</span> <span title="belt operand from ops window">op0</span>)</code>
 +
<br />
 +
{| class="mw-collapsible mw-collapsed wikitable" data-expandtext="&#9656;" data-collapsetext="&#9662;"
 +
! [[Cores|Core]] || [[Slot|In Slots]]|| [[Latency|Latencies]]
 
|-
 
|-
−
| [[Cores/Gold/Encoding#overflow|Gold]] || E0 E1 E2 E3 E4 E5 E6 E7 || 1
+
| [[Cores/Tin/Encoding#overflow|Tin]] || ||  
 
|-
 
|-
−
| [[Cores/Decimal8/Encoding#overflow|Decimal8]] || E0 E1 E2 E3 || 1
+
| [[Cores/Copper/Encoding#overflow|Copper]] || ||  
 
|-
 
|-
−
| [[Cores/Decimal16/Encoding#overflow|Decimal16]] || E0 E1 E2 E3 || 1
+
| [[Cores/Gold/Encoding#overflow|Gold]] || ||  
 
|}
 
|}
  
  
 
[[Instruction_Set|Instruction Set, alphabetical]], [[Instruction Set by Category]], [http://millcomputing.com/instructions.html?collapse=7#ops Instruction Set, sortable, filterable]
 
[[Instruction_Set|Instruction Set, alphabetical]], [[Instruction Set by Category]], [http://millcomputing.com/instructions.html?collapse=7#ops Instruction Set, sortable, filterable]

Latest revision as of 14:05, 23 February 2021

speculable  exu stream  exu block  compute phase   operation   in the logical value domain  

native on: Tin Copper Gold

Gets the overflow condition code of the ganged operation and puts it on the belt.
This is always available for condition code producing operations, regardless of overflow behavior.

related operations: eql, neq, gtr, geq, lss, leq, carry, fault

overflow() → op r0

operands: like Identity [xx:x]   native on: Copper Tin Gold


encoding: overflow(op op0)

Core In Slots Latencies
Tin E1
Copper E1
Gold E1

overflow(op op0) → op r0

operands: like Identity [xx:x]   native on: none


encoding: overflow(op op0)

Core In Slots Latencies
Tin
Copper
Gold


Instruction Set, alphabetical, Instruction Set by Category, Instruction Set, sortable, filterable

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