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| Custom CALL commands in Basic
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coldbreeze
msx lover
Berichten: 98 |  Geplaatst: 12 Mei 2007, 14:07 |
I remember there was a hook for hijacking the CALL command in MSX-BASIC that can be used for implementing custom commands (e.g. _debug, _restart, etc.). I lost all my Assembly code from that era and the memory on how this can be done has faded completely. 
Can anyone help me?
Many thanks! |
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jltursan
msx professional
Berichten: 873 | Geplaatst: 12 Mei 2007, 14:38 |
Take a look at this snippet:
How to create a BASIC ROM expansion
Edit: I've done some late test and found that the _fillscreen command only works on MSX1. I don't know the reason yet...  |
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coldbreeze
msx lover
Berichten: 98 | Geplaatst: 12 Mei 2007, 14:46 |
Many thanks jltursan. That's exactly what I have been looking for!
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jltursan
msx professional
Berichten: 873 | Geplaatst: 12 Mei 2007, 16:27 |
Ok, it's fixed now |
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coldbreeze
msx lover
Berichten: 98 | Geplaatst: 14 Mei 2007, 15:21 |
Ported your demo app to sjasm. It worked fine in BlueMSX.
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