Difference between revisions of "OSBYTE &47"
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===Alphabet numbers=== | ===Alphabet numbers=== | ||
| − | + | 100 BFont 105 Cyrillic 110 Welsh 115 Latin8 | |
| − | + | 101 Latin1 106 Arabic 111 UTF8 116 Latin10 | |
| − | + | 102 Latin2 107 Greek 112 Latin9 | |
| − | + | 103 Latin3 108 Hebrew 113 Latin6 | |
| − | + | 104 Latin4 109 Latin5 114 Latin7 | |
===Implementation=== | ===Implementation=== | ||
Revision as of 02:41, 29 December 2020
On entry: X=&00+n - set or read alphabet (font)
X=&80+n - set or read keyboard
n=&00 : set to default
n=&7F : read current setting
n=1-99 : Countries
n=100-126 : Alphabets
On exit, X=0 - specified alphabet/keyboard not supported
X<&80 - previous alphabet/keyboard
X>&7F - OSBYTE call not supported
While OSBYTE &46 sets both the keyboard and alphabet (font) in one action, this call allows each to be set individually.
Selecting an alphabet redefines the font with VDU 23 sequences. The alphabet can be specified with a country number 0-99, the appropriate alphabet for that country is then selected. Or the alphabet can be selected with the specific alphabet number 100-126. Selecting the default alphabet with X=&00 selects the appropriate alphabet for the currently selected country set with OSBYTE &46.
The keyboard can only be selected by specifying a country number, selecting a keyboard with an alphabet makes no sense. Selecting the default keyboard with X=&80 selects the appropriate keyboard for the currently selected country set with OSBYTE &46.
On 8-bit systems the keyboard number is stored in the OSBYTE &AD variable, on 32-bit systems it is stored in a non-OSBYTE variable.
- *COUNTRY parses the parameter and calls OSBYTE &46,n
- *ALPHABET parses the parameter and calls OSBYTE &47,&00+n
- *KEYBOARD parses the parameter and calls OSBYTE &47,&80+n
Country numbers
1 UK 11 Sweden 21 Arabic 31 Belgium 2 Master or BBC 12 Finland 22 Ireland 32 Japan 3 Compact 13 Unused 23 HongKong 33 MiddleEast 4 Italy 14 Denmark 24 Russia1 34 Netherlands 5 Spain 15 Norway 25 Russia2 35 Switzerland 6 France 16 Iceland 26 Israel 36 Wales 7 Germany 17 Canada1 27 Mexico 37 Maori 8 Portugal 18 Canada2 28 LatinAm 9 Esperanto 19 Canada 29 Australia 10 Greece 20 Turkey 30 Austria 48 USA 50 China 52 SAfrica 54 Taiwan 49 Wales2 51 Brazil 53 Korea When selecting a keyboard: 125 A4 internal or PC keyboard 126 Archimedes keyboard
Alphabet numbers
100 BFont 105 Cyrillic 110 Welsh 115 Latin8 101 Latin1 106 Arabic 111 UTF8 116 Latin10 102 Latin2 107 Greek 112 Latin9 103 Latin3 108 Hebrew 113 Latin6 104 Latin4 109 Latin5 114 Latin7
Implementation
Implemented in the Master Internationalisation ROM, RISC OS kernel and keyboard handlers, and 8-bit keyboard extensions.
See Also
- OSBYTE &46 - Set country (both keyboard and alphabet)
- OSBYTE &AC - Read/write keyboard handler setting
- OSBYTE &AD - Read/write keyboard handler setting
- OSBYTE &F0 - Read/write country code
- http://mdfs.net/Docs/Comp/BBC/Osbyte00
- http://mdfs.net/System/ROMs/AcornMOS/Compact511
WikiSysop (talk) 13:32, 8 March 2015 (UTC) Jgharston (talk) 23:32, 18 October 2020 (CEST)
