European font for Turbo-R ST

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By Alex

Master (205)

Alex의 아바타

30-11-2008, 19:55

Using custom font on MSX computers is very easy... you just need to tell where the font is located by updating following parameters:

#F91F (B) Font SlotID
#F920 (W) Font address

... new font will be activated after next SCREEN command.

What kind of sram you have?

The program that he mentions is actually using the Z80/R800 RAM mode, to overwrite the font in the bios. This prevents issues with finding a correct location to load a custom font which will not conflict with other programs.

By NYYRIKKI

Enlighted (6016)

NYYRIKKI의 아바타

01-12-2008, 02:01

The problem in the method Alex described is, that A1ST does not have MSX-View or sram drive.

I don't mean that it would be impossible to store custom character set in A1ST internal sram, but I don't think that it can be activated without external program... Correct me if I'm wrong... I don't know much about how A1ST built in applications use their sram, but I doubt there is a ML call to sram address space.

If you talk about separate sram software cartridge, then there is no problem... both ways (replacing original font or adding new one) are very easy to implement without worries about conflicting programs.

By Alex

Master (205)

Alex의 아바타

01-12-2008, 20:57

Oops. Overlooked that the question was about ST and not about GT. I don't know how to put the font into the SRAM of the ST. I suppose it would be possible as well to load the font during boot time from a floppy, a harddrive or a compact flash card, depending on the available external storage media.

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