=> R0 = logical colour
R1 = type of colour
<= R2 = setting of first flashing colour
R3 = setting of second flashing colour
This reads the setting of a particular colour that is sent to the hardware. R1 selects whether the normal colour (16), border colour (24) or pointer colour (25) is read. If R2 = R3 on exit the colour requested is a non flashing colour. The values are to interpret as follows:
Bits Meaning
0-6 Value showing how colour was programmed
7 Supremacy bit
8-15 Amount of red
16-23 Amount of green
24-31 Amount of blue
The bottom byte returns the second parameter to the VDU 19 command. For example:
Value Meaning
0-15 Actual colour (BBC compatible)
16 Defined by giving amounts of R, G and B
17-18 Flashing colour defined by giving amounts of red, green and blue
See PRM 1, page 701.
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