RB SHIFTLEFT - Revision history

Admin: Created page with "= Action = Shift all LED's of the active channel to the left
2015-06-15T20:57:29Z

Created page with "= <span class="f_Header">Action</span> = Shift all LED's of the active channel to the left <span style="font-family: Arial;"> </span> <span style="font-family: Arial;"..."

New page
= <span class="f_Header">Action</span> =

Shift all LED's of the active channel to the left

<span style="font-family: Arial;"> </span>

<span style="font-family: Arial;"> </span>

= <span class="f_Header">Syntax</span> =

<span style="font-weight: bold; color: rgb(0, 0, 128);">RB_SHIFTLEFT </span>Index , Width

<span style="font-family: Arial;"> </span>

<span style="font-family: Arial;"> </span>

= <span class="f_Header">Remarks</span> =
<div style="font-size: 13.3333330154419px; padding: 0px; margin: 0px 0px 0px 4px;">
{| cellspacing="0" cellpadding="1" border="1" style="border: 2px solid rgb(0, 0, 0); border-spacing: 0px; border-collapse: collapse;"
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Index

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A numeric variable or constant that specifies at which position the shift should start.

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Width

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The number of LED's that SHIFT, starting at Index. Width should at least be 1.

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</div>
 

This statement will shift the memory to the left by one position. Width specifies how many LED's , index inclusive, will take part in the shift operation.

When you shift information to the LEFT, the RIGHT-most LED will loose it's color information since it had no LED with data at the right.

Imagine 4 chairs with people on it. When they all stand up and go one place to the left, the person most left will have no chair to sit on. The chair on the right will be empty.

 

The table below demonstrates a number of operation on a LED stipe of 4 LED's.

 
<div style="font-size: 13.3333330154419px; padding: 0px; margin: 0px;">
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LED0

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LED1

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LED2

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LED3

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OPERATION/RESULT

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<span class="f_ImageCaption"> </span>

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[[File:Led green.png|led_green]]

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OPERATION :  RB_SHIFTLEFT 0,4

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<span class="f_ImageCaption"> </span>

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| valign="top" width="65" style="width: 65px; border: 1px solid rgb(0, 0, 0);" |
[[File:Led green.png|led_green]]

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RESULT

|- style="vertical-align: top;"
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[[File:Led green.png|led_green]]

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| valign="top" width="65" style="width: 65px; border: 1px solid rgb(0, 0, 0);" | <br/>
| valign="top" width="81" style="width: 81px; border: 1px solid rgb(0, 0, 0);" | <br/>
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OPERATION :  RB_SHIFTLEFT 0,2<br/> 

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| valign="top" width="82" style="width: 82px; border: 1px solid rgb(0, 0, 0);" | <br/>
| valign="top" width="65" style="width: 65px; border: 1px solid rgb(0, 0, 0);" | <br/>
| valign="top" width="81" style="width: 81px; border: 1px solid rgb(0, 0, 0);" | <br/>
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RESULT

 

|- style="vertical-align: top;"
| valign="top" width="81" style="width: 81px; border: 1px solid rgb(0, 0, 0);" | <br/>
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| valign="top" width="65" style="width: 65px; border: 1px solid rgb(0, 0, 0);" |
[[File:Led green.png|led_green]]

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[[File:Led green.png|led_green]]

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OPERATION :  RB_SHIFTLEFT 0,4

|- style="vertical-align: top;"
| valign="top" width="81" style="width: 81px; border: 1px solid rgb(0, 0, 0);" | <br/>
| valign="top" width="82" style="width: 82px; border: 1px solid rgb(0, 0, 0);" |
[[File:Led green.png|led_green]]

| valign="top" width="65" style="width: 65px; border: 1px solid rgb(0, 0, 0);" |
[[File:Led green.png|led_green]]

| valign="top" width="81" style="width: 81px; border: 1px solid rgb(0, 0, 0);" | <br/>
| valign="top" width="299" style="width: 299px; border: 1px solid rgb(0, 0, 0);" |
RESULT

|- style="vertical-align: top;"
| valign="top" width="81" style="width: 81px; border: 1px solid rgb(0, 0, 0);" |
[[File:Led green.png|led_green]]

| valign="top" width="82" style="width: 82px; border: 1px solid rgb(0, 0, 0);" |
[[File:Led green.png|led_green]]

| valign="top" width="65" style="width: 65px; border: 1px solid rgb(0, 0, 0);" |
[[File:Led green.png|led_green]]

| valign="top" width="81" style="width: 81px; border: 1px solid rgb(0, 0, 0);" |
[[File:Led green.png|led_green]]

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OPERATION :  RB_SHIFTLEFT 1,2

|- style="vertical-align: top;"
| valign="top" width="81" style="width: 81px; border: 1px solid rgb(0, 0, 0);" |
[[File:Led green.png|led_green]]

| valign="top" width="82" style="width: 82px; border: 1px solid rgb(0, 0, 0);" |
[[File:Led green.png|led_green]]

| valign="top" width="65" style="width: 65px; border: 1px solid rgb(0, 0, 0);" | <br/>
| valign="top" width="81" style="width: 81px; border: 1px solid rgb(0, 0, 0);" |
[[File:Led green.png|led_green]]

| valign="top" width="299" style="width: 299px; border: 1px solid rgb(0, 0, 0);" | <br/>
|}
</div>
= <span class="f_Header">See also</span> =

[[RB ADDCOLOR|RB_ADDCOLOR]] , [[RB ANDCOLOR|RB_ANDCOLOR]] , [[RB ORCOLOR|RB_ORCOLOR]], [[RB SUBCOLOR|RB_SUBCOLOR]], [[RB CLEARSTRIPE|RB_CLEARSTRIPE]] , [[RB CLEARCOLORS|RB_CLEARCOLORS]] , [[RB FILL|RB_FILL]] , [[RB FILLCOLORS|RB_FILLCOLORS]] , [[RB FILLSTRIPE|RB_FILLSTRIPE]] , [[RB SELECTCHANNEL|RB_SELECTCHANNEL]] , [[RB SEND|RB_SEND]], [[RB SETCOLOR|RB_SETCOLOR]] , [[RB SWAPCOLOR|RB_SWAPCOLOR]] , [[RB ROTATELEFT|RB_ROTATELEFT]] , [[RB ROTATERIGHT|RB_ROTATERIGHT]] , '''RB_SHIFTLEFT''' , [[RB SHIFTRIGHT|RB_SHIFTRIGHT]] , [[RB CHANGEPIN|RB_CHANGEPIN]] , [[RB SETTABLECOLOR|RB_SETTABLECOLOR]] , [[RB GETCOLOR|RB_GETCOLOR]] , [[RB LOOKUPCOLOR|RB_LOOKUPCOLOR]]

= <span class="f_Header">Example</span> =

See [[RB CHANGEPIN|RB_CHANGEPIN]]

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[[Category:BASCOM Language Reference]]