Double-height



Paul Evans,

Clapton-in-Gordano,

Avon.



This program produces double-height characters from a 48K

Spectrum.

  Line 5 changes RAMTOP to reseerve memory for the new

character sets. There are two new sets, one for the top

half of each character, and one for the bottom half.

  Line 10 to 110 load the two character sets above RAMTOP.

This part of the program only needs to be run when the

program is loaded: it does not have to be run each time a

double-height character is printed.

  Lines 9800 to 9920 print out text contained in a$ in

double-height characters. Note that a$ should contain only

ASCII characters, i.e., those with a value less than 128.

  If you own a 16K Spectrum the following changes have to

be made: 63830 in line 5 has to be altered to 31062; 63831

in lines 100 and 9820 changes to 31063; and 64599 in line

9830 changes to 31831. To print the text loaded into a$

type GO SUB 9800.