Colour bars/Display: Difference between revisions

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(Tidy up task definition (most modern display hardware no longer uses palettes as such))
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{{draft task}}
{{draft task}}
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The task is to display a series of color bars across the width of the display. The color bars should either use the system palette, or the sequence of colors: Black, Red, Green, Blue, Magenta, Cyan, Yellow, White.

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The task is to display a series of colour bars across the width of the display. The colour bars should either utilize the system pallet, or the primary colours and black and white bars should also be included.

A typical colour bar sequence would be Black, Red, Green, Blue, Magenta, Cyan, Yellow, White


=== {{header|ZX Spectrum Basic}} ===
=== {{header|ZX Spectrum Basic}} ===


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<lang basic>10 REM The ZX Spectrum display is 32 columns wide, so we have 8 columns of 4 spaces
<lang basic>
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10 REM The ZX Spectrum display is 32 columns wide, so we have 8 columns of 4 spaces
20 FOR r=0 TO 20: REM There are 21 rows
20 FOR r=0 TO 20: REM There are 21 rows
30 FOR c=0 TO 7: REM We use the native colour sequence here
30 FOR c=0 TO 7: REM We use the native colour sequence here
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50 NEXT c
50 NEXT c
60 REM at this point the cursor has wrapped, so we don't need a newline
60 REM at this point the cursor has wrapped, so we don't need a newline
70 NEXT r
70 NEXT r</lang>
</lang>


[[Category:Test card]]
[[Category:Test card]]
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