Hi All
Does anyone have any idea why my plus/4 has double dots on the screen (see photo)
Thanks in advance
Commodore Plus/4
- centrespot
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Re: Commodore Plus/4
That's either a power supply problem or an issue with the main TED chip.
Re: Commodore Plus/4
Hello
I guess memory error...
Do you have stange txt behavior on theses positions ?
Cheers
Laurent
I guess memory error...
Do you have stange txt behavior on theses positions ?
Cheers
Laurent
- centrespot
- Posts: 113
- Joined: Thu Mar 31, 2011 12:45 pm
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- egel
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Re: Commodore Plus/4
Not double quotes?
" " 0x20 00100000
""" Ox22 00100010
"S" 0x53 01010011
"Q" 0x51 01010001
"F" 0x46 01000110
"D" 0x44 01000100
Looks like an error in the same bit
" " 0x20 00100000
""" Ox22 00100010
"S" 0x53 01010011
"Q" 0x51 01010001
"F" 0x46 01000110
"D" 0x44 01000100
Looks like an error in the same bit
- centrespot
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Re: Commodore Plus/4
Hi
I think it's easy to spot.
The top left character is located at adresse $0400
Two bytes by char (petscii value, then color)
Cheers
Laurent
I think it's easy to spot.
The top left character is located at adresse $0400
Two bytes by char (petscii value, then color)
Cheers
Laurent