set_screen_size
From ArchaicPixels: HuC and PCEAS Documentation
set_screen_size(char size);
Change the virtual screen size. By default the startup
code initialize a virtual screen of 64 characters wide
and 32 character tall, but other values are possible,
namely : 32x32, 128x32, 32x64, 64x64, or 128x64.
More the virtual screen is big, less video memory
you have for your graphics (font, tiles, sprites).
