Difference between revisions of "Instruction Set/shiftlss"

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{{DISPLAYTITLE:shiftlss}}
 
{{DISPLAYTITLE:shiftlss}}
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<div style="font-size:80%;line-height:90%;margin-bottom:2em">[[Speculation|realizing]]&nbsp;&nbsp;[[Encoding|exu stream]]&nbsp;&nbsp;[[Decode|exu block]]&nbsp;&nbsp;[[Phasing|compute phase]]&nbsp;&nbsp; operation&nbsp;&nbsp; [[Domains|in the signed integer value domain]]&nbsp;&nbsp; [[Overflow|using saturating overflow behavior]]&nbsp;&nbsp; [[Condition Code|that produces condition codes]]<br />
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<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 signed integer value domain]]&nbsp;&nbsp; [[Overflow|using saturating overflow behavior]]&nbsp;&nbsp; [[Condition Code|that produces condition codes]]<br />
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'''aliases:''' shiftlssv <br />
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'''aliases:''' shiftlss2 <br />
 
'''native on:''' [[Cores|all]]<br />
 
'''native on:''' [[Cores|all]]<br />
 
</div>
 
</div>
  
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bitwise shift
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Signed bitwise left shift. Saturating.
 +
The bit count by which to shift is an unsigned number.
 +
When a one gets moved out, the result is the smallest negative number for the width.<br />
 +
When the highest order bit changes from zero to one, the result is the highest positive number for the width.
 +
 
 
----
 
----
 
<code style="font-size:130%"><b style="color:#050">shiftlss</b>(<span style="color:#009">[[Domains#s|s]]</span> <span title="belt operand from ops window">x</span>, <i><span style="color:#009">[[Immediates#bit|bit]]</span> <span title="bit number">bits</span></i>) &#8594; [[Domains#s|s]] r<sub>0</sub></code>
 
<code style="font-size:130%"><b style="color:#050">shiftlss</b>(<span style="color:#009">[[Domains#s|s]]</span> <span title="belt operand from ops window">x</span>, <i><span style="color:#009">[[Immediates#bit|bit]]</span> <span title="bit number">bits</span></i>) &#8594; [[Domains#s|s]] r<sub>0</sub></code>
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! [[Cores|Core]] || [[Slot|In Slots]]|| [[Latency|Latencies]]
 
! [[Cores|Core]] || [[Slot|In Slots]]|| [[Latency|Latencies]]
 
|-
 
|-
−
| [[Cores/Tin/Encoding#shiftlss|Tin]] || E0 || b,b:b=1 b,h:b=1 b,w:b=1 b,d:b=1 b,q:b=1 bv,bv:bv=1 h,b:h=1 h,h:h=1 h,w:h=1 h,d:h=1 h,q:h=1 hv,hv:hv=1 w,b:w=1 w,h:w=1 w,w:w=1 w,d:w=1 w,q:w=1 wv,wv:wv=1 d,b:d=2 d,h:d=2 d,w:d=2 d,d:d=2 d,q:d=2 dv,dv:dv=2 q,b:q=2 q,h:q=2 q,w:q=2 q,d:q=2 q,q:q=2 qv,qv:qv=2
+
| [[Cores/Tin/Encoding#shiftlss|Tin]] || E0 ||  
 
|-
 
|-
−
| [[Cores/Copper/Encoding#shiftlss|Copper]] || E0 || b,b:b=1 b,h:b=1 b,w:b=1 b,d:b=1 b,q:b=1 bv,bv:bv=1 h,b:h=1 h,h:h=1 h,w:h=1 h,d:h=1 h,q:h=1 hv,hv:hv=1 w,b:w=1 w,h:w=1 w,w:w=1 w,d:w=1 w,q:w=1 wv,wv:wv=1 d,b:d=2 d,h:d=2 d,w:d=2 d,d:d=2 d,q:d=2 dv,dv:dv=2 q,b:q=2 q,h:q=2 q,w:q=2 q,d:q=2 q,q:q=2 qv,qv:qv=2
+
| [[Cores/Copper/Encoding#shiftlss|Copper]] || E0 ||  
 
|-
 
|-
−
| [[Cores/Silver/Encoding#shiftlss|Silver]] || E0 E1 || b,b:b=1 b,h:b=1 b,w:b=1 b,d:b=1 b,q:b=1 bv,bv:bv=1 h,b:h=1 h,h:h=1 h,w:h=1 h,d:h=1 h,q:h=1 hv,hv:hv=1 w,b:w=1 w,h:w=1 w,w:w=1 w,d:w=1 w,q:w=1 wv,wv:wv=1 d,b:d=2 d,h:d=2 d,w:d=2 d,d:d=2 d,q:d=2 dv,dv:dv=2 q,b:q=2 q,h:q=2 q,w:q=2 q,d:q=2 q,q:q=2 qv,qv:qv=2
+
| [[Cores/Silver/Encoding#shiftlss|Silver]] || E0 E1 ||  
 
|-
 
|-
−
| [[Cores/Gold/Encoding#shiftlss|Gold]] || E0 E1 || b,b:b=1 b,h:b=1 b,w:b=1 b,d:b=1 b,q:b=1 bv,bv:bv=1 h,b:h=1 h,h:h=1 h,w:h=1 h,d:h=1 h,q:h=1 hv,hv:hv=1 w,b:w=1 w,h:w=1 w,w:w=1 w,d:w=1 w,q:w=1 wv,wv:wv=1 d,b:d=2 d,h:d=2 d,w:d=2 d,d:d=2 d,q:d=2 dv,dv:dv=2 q,b:q=2 q,h:q=2 q,w:q=2 q,d:q=2 q,q:q=2 qv,qv:qv=2
+
| [[Cores/Gold/Encoding#shiftlss|Gold]] || E0 ||  
−
|-
+
−
| [[Cores/Decimal8/Encoding#shiftlss|Decimal8]] || E0 E1 || b,b:b=1 b,h:b=1 b,w:b=1 b,d:b=1 b,q:b=1 bv,bv:bv=1 h,b:h=1 h,h:h=1 h,w:h=1 h,d:h=1 h,q:h=1 hv,hv:hv=1 w,b:w=1 w,h:w=1 w,w:w=1 w,d:w=1 w,q:w=1 wv,wv:wv=1 d,b:d=2 d,h:d=2 d,w:d=2 d,d:d=2 d,q:d=2 dv,dv:dv=2 q,b:q=2 q,h:q=2 q,w:q=2 q,d:q=2 q,q:q=2 qv,qv:qv=2
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−
|-
+
−
| [[Cores/Decimal16/Encoding#shiftlss|Decimal16]] || E0 E1 || b,b:b=1 b,h:b=1 b,w:b=1 b,d:b=1 b,q:b=1 bv,bv:bv=1 h,b:h=1 h,h:h=1 h,w:h=1 h,d:h=1 h,q:h=1 hv,hv:hv=1 w,b:w=1 w,h:w=1 w,w:w=1 w,d:w=1 w,q:w=1 wv,wv:wv=1 d,b:d=2 d,h:d=2 d,w:d=2 d,d:d=2 d,q:d=2 dv,dv:dv=2 q,b:q=2 q,h:q=2 q,w:q=2 q,d:q=2 q,q:q=2 qv,qv:qv=2
+
 
|}
 
|}
  
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! [[Cores|Core]] || [[Slot|In Slots]]|| [[Latency|Latencies]]
 
! [[Cores|Core]] || [[Slot|In Slots]]|| [[Latency|Latencies]]
 
|-
 
|-
−
| [[Cores/Tin/Encoding#shiftlss|Tin]] || E0 || b,b:b=1 b,h:b=1 b,w:b=1 b,d:b=1 b,q:b=1 bv,bv:bv=1 h,b:h=1 h,h:h=1 h,w:h=1 h,d:h=1 h,q:h=1 hv,hv:hv=1 w,b:w=1 w,h:w=1 w,w:w=1 w,d:w=1 w,q:w=1 wv,wv:wv=1 d,b:d=2 d,h:d=2 d,w:d=2 d,d:d=2 d,q:d=2 dv,dv:dv=2 q,b:q=2 q,h:q=2 q,w:q=2 q,d:q=2 q,q:q=2 qv,qv:qv=2
+
| [[Cores/Tin/Encoding#shiftlss|Tin]] || E0 ||  
−
|-
+
−
| [[Cores/Copper/Encoding#shiftlss|Copper]] || E0 || b,b:b=1 b,h:b=1 b,w:b=1 b,d:b=1 b,q:b=1 bv,bv:bv=1 h,b:h=1 h,h:h=1 h,w:h=1 h,d:h=1 h,q:h=1 hv,hv:hv=1 w,b:w=1 w,h:w=1 w,w:w=1 w,d:w=1 w,q:w=1 wv,wv:wv=1 d,b:d=2 d,h:d=2 d,w:d=2 d,d:d=2 d,q:d=2 dv,dv:dv=2 q,b:q=2 q,h:q=2 q,w:q=2 q,d:q=2 q,q:q=2 qv,qv:qv=2
+
−
|-
+
−
| [[Cores/Silver/Encoding#shiftlss|Silver]] || E0 E1 || b,b:b=1 b,h:b=1 b,w:b=1 b,d:b=1 b,q:b=1 bv,bv:bv=1 h,b:h=1 h,h:h=1 h,w:h=1 h,d:h=1 h,q:h=1 hv,hv:hv=1 w,b:w=1 w,h:w=1 w,w:w=1 w,d:w=1 w,q:w=1 wv,wv:wv=1 d,b:d=2 d,h:d=2 d,w:d=2 d,d:d=2 d,q:d=2 dv,dv:dv=2 q,b:q=2 q,h:q=2 q,w:q=2 q,d:q=2 q,q:q=2 qv,qv:qv=2
+
 
|-
 
|-
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| [[Cores/Gold/Encoding#shiftlss|Gold]] || E0 E1 || b,b:b=1 b,h:b=1 b,w:b=1 b,d:b=1 b,q:b=1 bv,bv:bv=1 h,b:h=1 h,h:h=1 h,w:h=1 h,d:h=1 h,q:h=1 hv,hv:hv=1 w,b:w=1 w,h:w=1 w,w:w=1 w,d:w=1 w,q:w=1 wv,wv:wv=1 d,b:d=2 d,h:d=2 d,w:d=2 d,d:d=2 d,q:d=2 dv,dv:dv=2 q,b:q=2 q,h:q=2 q,w:q=2 q,d:q=2 q,q:q=2 qv,qv:qv=2
+
| [[Cores/Copper/Encoding#shiftlss|Copper]] || E0 ||  
 
|-
 
|-
−
| [[Cores/Decimal8/Encoding#shiftlss|Decimal8]] || E0 E1 || b,b:b=1 b,h:b=1 b,w:b=1 b,d:b=1 b,q:b=1 bv,bv:bv=1 h,b:h=1 h,h:h=1 h,w:h=1 h,d:h=1 h,q:h=1 hv,hv:hv=1 w,b:w=1 w,h:w=1 w,w:w=1 w,d:w=1 w,q:w=1 wv,wv:wv=1 d,b:d=2 d,h:d=2 d,w:d=2 d,d:d=2 d,q:d=2 dv,dv:dv=2 q,b:q=2 q,h:q=2 q,w:q=2 q,d:q=2 q,q:q=2 qv,qv:qv=2
+
| [[Cores/Silver/Encoding#shiftlss|Silver]] || E0 E1 ||  
 
|-
 
|-
−
| [[Cores/Decimal16/Encoding#shiftlss|Decimal16]] || E0 E1 || b,b:b=1 b,h:b=1 b,w:b=1 b,d:b=1 b,q:b=1 bv,bv:bv=1 h,b:h=1 h,h:h=1 h,w:h=1 h,d:h=1 h,q:h=1 hv,hv:hv=1 w,b:w=1 w,h:w=1 w,w:w=1 w,d:w=1 w,q:w=1 wv,wv:wv=1 d,b:d=2 d,h:d=2 d,w:d=2 d,d:d=2 d,q:d=2 dv,dv:dv=2 q,b:q=2 q,h:q=2 q,w:q=2 q,d:q=2 q,q:q=2 qv,qv:qv=2
+
| [[Cores/Gold/Encoding#shiftlss|Gold]] || E0 ||  
 
|}
 
|}
  
  
 
[[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 14:04, 23 February 2021

speculable  exu stream  exu block  compute phase   operation   in the signed integer value domain   using saturating overflow behavior   that produces condition codes

aliases: shiftlss2
native on: all

Signed bitwise left shift. Saturating. The bit count by which to shift is an unsigned number. When a one gets moved out, the result is the smallest negative number for the width.
When the highest order bit changes from zero to one, the result is the highest positive number for the width.

shiftlss(s x, bit bits) → s r0

operands: like Shift [xi:x]


Core In Slots Latencies
Tin E0
Copper E0
Silver E0 E1
Gold E0

shiftlss(s x, n bits) → s r0

operands: like Shift [xi:x]


Core In Slots Latencies
Tin E0
Copper E0
Silver E0 E1
Gold E0


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

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