AMOSi:Shift Up

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an example can be found on AMOSPro_Examples:Examples/H-2/Help_25.AMOS

Rotates a colour upwards through the current screen palette.

Shift Up delay,first,last,flag

first and last choose the range of colour indexes which will be rotated by your instruction.

delay sets the delay in fiftieths of a second between each colour shift.

type =1 cycles the colours continuosly.
=0 discard the colour value of index last after each rotation.