Programmer Guide/SPU Reference/SELECTAB - Revision history

Toni at 12:59, 6 May 2011

2011-05-06T12:59:41Z

← Older revision		Revision as of 14:59, 6 May 2011
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	with: 0 ≤ i < length of <var>A<sub>vector</sub></var>		with: 0 ≤ i < length of <var>A<sub>vector</sub></var>
	;See also:		;See also:
	<[[../#Signal Processing Atoms\|SP-atoms]]>~~; [[../MASKABC]]~~		<[[../#Signal Processing Atoms\|SP-atoms]]>
	<!-- AN, 2.5.2011 -->		<!-- AN, 2.5.2011 -->

Toni: /* [SPU SELECTAB A B SEL OUT Y] */

2011-05-06T12:35:10Z

[SPU SELECTAB A B SEL OUT Y]

← Older revision		Revision as of 14:35, 6 May 2011
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	with: 0 ≤ i < length of <var>A<sub>vector</sub></var>		with: 0 ≤ i < length of <var>A<sub>vector</sub></var>
	;See also:		;See also:
	<[[../#Signal Processing Atoms\|SP-atoms]]>		<[[../#Signal Processing Atoms\|SP-atoms]]>; [[../MASKABC]]
	<!-- AN, 2.5.2011 -->		<!-- AN, 2.5.2011 -->

Toni at 12:33, 6 May 2011

2011-05-06T12:33:11Z

← Older revision		Revision as of 14:33, 6 May 2011
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	\|<var>A, B</var>\|\|input data \|\|number, vector \|\|variable		\|<var>A, B</var>\|\|input data \|\|number, vector \|\|variable
	\|-		\|-
	\|<var>SEL</var>\|\|select switch \|\|number (int.), string\|\|variable		\|<var>SEL</var>\|\|select switch \|\|number (int.), string\|\|variable \|\|<code>0</code>
	\|-		\|-
	!output !!description !!data type !!value type!!comment		!output !!description !!data type !!value type!!comment

Toni at 12:31, 6 May 2011

2011-05-06T12:31:42Z

@@ Line 41: / Line 41: @@
 |<var>Y</var>[i] = max(<var>A</var>[i],<var>B</var>[i])
 |}
-with: 0 &le; i &lt; length of <var>A<sub>vector</sub><var>
+with: 0 &le; i &lt; length of <var>A<sub>vector</sub></var>
 ;See also:
 <[[../#Signal Processing Atoms|SP-atoms]]>
 <!-- AN, 2.5.2011 -->

Toni at 12:31, 6 May 2011

2011-05-06T12:31:16Z

← Older revision		Revision as of 14:31, 6 May 2011
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	;Description:		;Description:
	~~:;<var>A</var> and <var>B</var> are numbers:~~		{\|class="einrahmen"
	::{\|class="einrahmen"
	!SEL		!SEL
	! <var>Y<sub>number</sub></var>=f(<var>A<sub>number</sub></var>,<var>B<sub>number</sub></var>)		! <var>Y<sub>number</sub></var>=f(<var>A<sub>number</sub></var>,<var>B<sub>number</sub></var>)
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	\|<var>Y</var>[i] = max(<var>A</var>[i],<var>B</var>[i])		\|<var>Y</var>[i] = max(<var>A</var>[i],<var>B</var>[i])
	\|}		\|}
			with: 0 ≤ i < length of <var>A<sub>vector</sub><var>

Toni at 12:29, 6 May 2011

2011-05-06T12:29:58Z

Show changes

Toni: moved Programmer Guide/SPU Reference/SELECTAB - 2 channel multiplexer to Programmer Guide/SPU Reference/SELECTAB

2011-04-28T10:08:38Z

moved Programmer Guide/SPU Reference/SELECTAB - 2 channel multiplexer to Programmer Guide/SPU Reference/SELECTAB

← Older revision	Revision as of 12:08, 28 April 2011
(No difference)

Admin: 1 revision: Initial import

2010-11-18T16:31:54Z

1 revision: Initial import

← Older revision	Revision as of 18:31, 18 November 2010
(No difference)

193.171.195.8: initial import

2010-05-17T13:05:27Z

initial import

New page

{{DISPLAYTITLE:{{SUBPAGENAME}}}}
====SELECTAB - 2 channel multiplexer====

=====Usage:=====

<code>SELECTAB <var>A B SEL</var></code>

=====Inputs:=====

{|
|-
|<var>A, B</var>
|data input <var>A</var> and <var>B</var> (number or vector, see I/O configuration table)
|-
|<var>SEL</var>
|selection and/or condition
|}

=====Outputs:=====

{|
|-
|<var>Y</var>
|output for selected data input (same type as <var>A</var>)
|}

=====Function:=====

This atom implements a direct or conditional 2-channel multiplexer controlled via the input <var>SEL</var>. The input <var>SEL</var> is checked at the beginning of each evaluation cycle.

Table 23: Multiplexer method selected by input <var>SEL</var>

{|
|-
|value of SEL
|value copied to Y
|-
|0 or A
|input A is copied to output Y
|-
|1 or B
|input B is copied to output Y
|-
|2 or MINIMUM
|Min(A, B) is copied to Yfor vectors, the operation is applied element by element!
|-
|3 or MAXIMUM
|Max(A, B) is copied to Yfor vectors, the operation is applied element by element!
|}

Table 24: Possible I/O configurations:

{|
|-
|type of input A
|type of input B
|type of output Y
|assignment
|-
|Number
|number
|number
|Y is set to A or B
|-
|Vector
|number
|vector
|Y[i] is set to A[i] or B
|-
|vector
|vector
|vector
|Y[i] is set to A[i] or B[i]
|}