Konference: Počítač SHARP MZ-800 a emulátory
| Od: | Michal Hučík |
| Datum: | 25.8.2010 19:48 |
| Předmět: | Re: status - Re: Unikarta-ng - schema a DPS |
nojo, divam se do userguide z80 ... pokud je pri preruseni ocekavana instrukce, tak je vystaveno M1=0, RD=0 a MEMRQ=0 ... Pokud je ocekavan vektor preruseni, tak M1=0, RD=1 a IORQ=0 ... na adresni sbernici je v tu chvili vystaven aktualni PC ... Tedy jakasi sance, ze se tam objevi cislo portu na ktery reaguje unikarta by tu byla ... Dne 25.8.2010 20:47, Jaroslav Nemec (sharpemu tu byla ta zakroucena vec pandora.cz) napsal(a): > > Presne tak, pri Interrupt Request signal IORQ=0 znamena, ze datova > zbernica je otvorena na zapis vektora prerusenia (input zo strany CPU). > > David Luftner (sharpemu tu byla ta zakroucena vec pandora.cz) wrote: >> pri obsluze preruseni IORQ=0 >> M1=0 >> RD=1 >> WR=1 >> --- >> >> __________ Information from ESET NOD32 Antivirus, version of virus >> signature database 5397 (20100825) __________ >> >> The message was checked by ESET NOD32 Antivirus. >> >> http://www.eset.com >> >> >> >> > > > > __________ Information from ESET NOD32 Antivirus, version of virus > signature database 5397 (20100825) __________ > > The message was checked by ESET NOD32 Antivirus. > > http://www.eset.com > > > > ---
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