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Robotrontechnik-Forum » Technische Diskussionen » Speicherorganisation der A5120 » Themenansicht

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000
26.04.2014, 19:29 Uhr
dk_spb



I have A5120 with ZRE and with:
K3526 (64K RAM) - 0000-FFFFh
K7024 (video) - F800h-FFFFh

Both card use F800h-FFFFh. How software manage to which memory write/read?

I have wrote 33h to FC00h and hope to see '3' at screen. But I see "_". I tried to read from FC00h and got 03h.
When I removed K3526 and try write/read to FC00h - I got 83h.
When I removed K7024 and try write/read to FC00h - I got 33h.

Is it memory conflict or my K7024 is bad?
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001
26.04.2014, 22:01 Uhr
holm

Avatar von holm

Both memories in that area are written first before they get ever read, so both of them should have the same contents....

Regards,

Holm
--
float R,y=1.5,x,r,A,P,B;int u,h=80,n=80,s;main(c,v)int c;char **v;
{s=(c>1?(h=atoi(v[1])):h)*h/2;for(R=6./h;s%h||(y-=R,x=-2),s;4<(P=B*B)+
(r=A*A)|++u==n&&putchar(*(((--s%h)?(u<n?--u%6:6):7)+"World! \n"))&&
(A=B=P=u=r=0,x+=R/2))A=B*2*A+y,B=P+x-r;}
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002
27.04.2014, 08:45 Uhr
dk_spb



Many thanks. I have found that 8216 on D4-D7 in K7024 is bad.
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