Re[4]: [cc65] Char set questions

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From: groepaz (
Date: 2002-06-01 03:00:01

Hello Jason,

Saturday, June 01, 2002, 2:45:23 AM, you wrote:

JR> On Fri, 31 May 2002 23:15:23 +0200, groepaz <> wrote:

>>Hello Jason,

JR> Hi Groepaz,

>>JR> One other question if I may ;-)
>>JR> I was wondering, can the VIC see a char. set at $e000? I know the VIC
>>JR> can see char sets at $0000 (not good choice of course) and $0800. I
>>JR> know there are other locations that can be chosen but wasn't sure if
>>JR> it went as high as $e000 or am I confusing something? ;-)
>>poke $dd00,0
>>poke $d018,$80
>>char at $e000
>>screen at $f000

JR> Cool! Thanks! :-)

hehe np :0)

and just to make it a complete answer...

in textmode, the highnibble of $d018 selects the 1k block from where
screen data is fetched, starting from 0 in 1k increments. the
lownibble does the same for charset, but in 2k increments.
the lower 2 bits of $dd00 select the 16k block from where the vic can
fetch data, 3 means $0000, 0 $c000 here.

Best regards,

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