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65C02 : deduce addressing from opcode ?
- Subject: 65C02 : deduce addressing from opcode ?
- From: Zouplaz <pouet@pouet.com>
- Date: 24 Mar 2005 12:19:44 GMT
- Newsgroups: comp.sys.apple2
- Organization: Guest of ProXad - France
- User-agent: Xnews/5.04.25
- Xref: g2news1.google.com comp.sys.apple2:9691
Hello, I wonder how I can deduce the adressing mode from any 65C02 opcode ?
Looking several opcode matrix I'm pretty sure that opcode numbering have
not be done by random.
13 addressing mode are identified for this cpu so I presume that I could
end with a 4 bits value representing the adressing mode of any known
opcode..
Any idea ?
Thank you