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Author Topic: What do think of OS4.0 Classic Version?  (Read 9646 times)

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Offline motorollin

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Re: What do think of OS4.0 Classic Version?
« on: December 19, 2007, 02:05:43 PM »
AGA screenmodes are generated by the custom chips, which only have access to Chip RAM.

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moto
Code: [Select]
10  IT\'S THE FINAL COUNTDOWN
20  FOR C = 1 TO 2
30     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NAAAA
40     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NA-NA-NAAAAA
50  NEXT C
60  NA-NA-NAAAA
70  NA-NA NA-NA-NA-NA-NAAAA NAAA-NAAAAAAAAAAA
80  GOTO 10
 

Offline motorollin

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Re: What do think of OS4.0 Classic Version?
« Reply #1 on: December 19, 2007, 02:09:44 PM »
Correct. GFX card screenmodes utilise the memory on the GFX card, not chip RAM.

--
moto
Code: [Select]
10  IT\'S THE FINAL COUNTDOWN
20  FOR C = 1 TO 2
30     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NAAAA
40     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NA-NA-NAAAAA
50  NEXT C
60  NA-NA-NAAAA
70  NA-NA NA-NA-NA-NA-NAAAA NAAA-NAAAAAAAAAAA
80  GOTO 10
 

Offline motorollin

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Re: What do think of OS4.0 Classic Version?
« Reply #2 on: December 19, 2007, 02:14:44 PM »
Quote
JJ wrote:
Stuff ported to OS4 will obviously not use it at all as it runs on OS4 as well ?

Depends on the port. If it is ported to run on an AGA screenmode then it will still use chip RAM. But if it is written to open on an RTG screen then it will use fast RAM. The rules on RAM usage are the same in OS4 are the same as they are in every other version of Amiga OS.

--
moto
Code: [Select]
10  IT\'S THE FINAL COUNTDOWN
20  FOR C = 1 TO 2
30     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NAAAA
40     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NA-NA-NAAAAA
50  NEXT C
60  NA-NA-NAAAA
70  NA-NA NA-NA-NA-NA-NAAAA NAAA-NAAAAAAAAAAA
80  GOTO 10