Humpty Dumpty Book: M-set Picture #6

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Humpty Dumpty Book: M-set Picture #6


Feature no. 2 of three in close proximity

If you haven't already, click here to see this area in context.

If you've visited the page featuring my PC versions of this region (see the link below), you'll have read how it's my favourite part of the M-set. So much so, in fact, that I generated two more C64 printouts of the region, using different colours. Here's one:

The second of these (below) may actually be the first M-set colour graphic I ever printed. I used hi-res mode (320×200) mode. Have a careful look at it. Can you see how it's different from both of the others (apart from the colour differences)?

If you look closely, you can see bits that don't quite look right. About two-thirds of the way across and just under a third of the way down, there is what looks for all the world like the right-hand half of a green square poking out into the pink area.

Well, that's exactly what it is! In fact, it's one of the thousand 8×8 pixel blocks of which the screen is made up. The fact that the program was trying to plot pixels in more than two colours in that block meant that the machine was forced to make compromises. The only two colours which ultimately appeared there were green and grey.

Look again, and you'll see other parts of the graphic where something similar is happening. About halfway down and a bit to the right of the one just described, there's an almost identical situation. Also, there are several instances of almost-completely white little squares, where quite clearly they shouldn't be if everything was working as intended.

As I recall, it was after this plot that I simply went ahead with multicolour mode (160×200 double-width pixels) for all other M-set graphics I ever did on the C-64.

To see my PC versions of this region, click here.

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