Re: Hires colors

[philip@labtam.OZ.AU (Philip Stephens)]

Fabrice Frances writes:

>So, the resolution is 280 pixels, indeed. There's just proximity constraints.

  Actually the resolution is 560 pixels, with proximity constraints!  The
colour bit in each hi-res byte causes a half-pixel shift on the screen
of all 7 pixels in that byte.  I remember a program published in Nibble
magazine took advantage of this fact to draw lines and circles on the screen
in a pseudo 560-pixel hi-res mode.  It was quite effective.