Re: Laser 128 Questions

[mressl@macgui.com (Marc S Ressl)]

Tom Greene wrote:
> On Jun 3, 1:31 pm, mre...@macgui.com (Marc S Ressl) wrote:
>> Is anybody able to determine what version each of these ROM images is?
>>
>> http://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Com...
>>
>> With the best wishes,
>>
>> Marc.-
> 
> There is version/copyright info embedded in the files near offset
> $0E00-$0F00, in ASCII with the high bits set. The v4.2 and v6.1 ones
> are correct, and "Laser 128EX ROM.bin" is v4.5.
> 
> Laser 128 ROM.bin and Laser 128 4 ROM.bin don't contain any version
> info the way the other files do.
> But both these files are corrupt anyway, since all the high bits seem
> to have been stripped from them.
> 
> Here is the full info from each of the good files:
> 
> 
> Laser 128 v4.2 ROM.bin:
> 
> LASER 128  ROM Version 4.2
> (C) Copyright 1985, 1986, 1987
> Central Point Software, Inc.
> BASIC (C) 1982 Microsoft
> All rights reserved
> 
> 
> Laser 128EX ROM.bin:
> 
> LASER 128  ROM Version 4.5
> (C) Copyright 1985, 1986, 1987, 1988
> Central Point Software, Inc.
> BASIC (C) 1982 Microsoft
> All rights reserved
> 
> 
> Laser 128EX2 v6.1 ROM.bin:
> 
> LASER 128EX/2  ROM Version 6.1
> (C) Copyright 1985-1988
> Central Point Software, Inc.
> BASIC (C) 1982 Microsoft
> All rights reserved
> 
> 
> Tom
>

Thanks a lot for the help!!

Now it is really odd why bit 7 was stripped... maybe it was transmitted
decades ago over a modem using a 7 bit link?

With the best wishes,

Marc.-