Autor
| Differences in character sets
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ARTRAG
msx master
Mensajes: 1802 |  Publicado: Marzo 17 2008, 17:05 |
I know that the character sets stored in the basic rom depend
on the national version of the machine (byte 2Bh).
Are there images, or documents illustrating the shape of the characters
stored each national rom ?
Is there a subset of characters common to all the national versions?
If someone wants to use those characters to plot simple pictures,
on which characters will be able to rely ?
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jltursan
msx professional
Mensajes: 887 | Publicado: Marzo 17 2008, 17:44 |
I guess that only the common ASCII set would be reliable to use to draw graphics...  |
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pitpan
msx master
Mensajes: 1418 | Publicado: Marzo 17 2008, 17:59 |
Several character sets are depicted in MSX TECHNICAL DATABOOK, although not all of them. IMHO, only 7-bit ASCII character set is reliable, and I'm not totally sure about it.
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manuel
msx guru
Mensajes: 3638 | Publicado: Marzo 17 2008, 19:31 |
No, e.g. the 0 looks different on German MSX (it has a central dot, instead of a slash).
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pitpan
msx master
Mensajes: 1418 | Publicado: Marzo 18 2008, 00:31 |
Yes, it was like this in my first MSX, a Sanyo MPC-64 with German keyboard.
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ARTRAG
msx master
Mensajes: 1802 | Publicado: Marzo 18 2008, 15:48 |
Any picture of the different sets ?
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manuel
msx guru
Mensajes: 3638 | Publicado: Marzo 18 2008, 18:41 |
Doesn't the MSX Technical Databook have some?
You could also extract the data from all system ROMs you can find  |
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AuroraMSX
msx master
Mensajes: 1278 | Publicado: Marzo 18 2008, 21:13 |
Quote:
| No, e.g. the 0 looks different on German MSX (it has a central dot, instead of a slash).
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And the C-BIOS character set is a completely different font |
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manuel
msx guru
Mensajes: 3638 | Publicado: Marzo 18 2008, 23:03 |
It's a cool font, though |
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ARTRAG
msx master
Mensajes: 1802 | Publicado: Marzo 19 2008, 11:12 |
I can only conclude that this makes MSX fonts completely unusable for the 2Kbyte competition,
and in general for any kind of "ASCII art"
as it would look very different on different machines...
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jltursan
msx professional
Mensajes: 887 | Publicado: Marzo 19 2008, 12:20 |
We can always use the usual ()_-*/\.@Oo and such... 
I'm not 100% sure about the "block drawing" chars; but I believe that those symbols are present on all the machines. |
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ARTRAG
msx master
Mensajes: 1802 | Publicado: Marzo 19 2008, 12:21 |
I need exactly the block drawing chars!!
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pitpan
msx master
Mensajes: 1418 | Publicado: Marzo 19 2008, 12:36 |
I'm afraid that there's no way to have that granted. My own 2KBOS entry does use the original charset, but it redefines several chars in order to avoid this kind of problems. In fact, it is fully C-BIOS compatible as well  |
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pitpan
msx master
Mensajes: 1418 | Publicado: Marzo 19 2008, 12:38 |
By the way, JL: have you detected that there is a problem with CAVERNS OF TITAN when run in a C-BIOS machine? Apparently, the fading block graphics got corrupted when stepped, instead of sliding down. But it does not affect the playability of the game.
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hap
msx professional
Mensajes: 514 | Publicado: Marzo 19 2008, 12:39 |
Quote:
| I need exactly the block drawing chars!!
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You're a programmer. Like manuel said, just make a simple script to extract the chars from all system roms. |
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