Now I'm proposing a VIC20 JiffyDOS with "wireless" solution:
it will be sufficient to plug it on kernal socket and it will work without piercing the case and WITHOUT EXTRA WIRES!
(If your chip is soldered to the motherboard you will need to unsolder it and install a socket)
It's present also a jumper to choose the system standard: PAL or NTSC.
How to handle switching between kernals?
The VIC20 will boot-up with standard kernal (I prefer always that on standard boot-up the machine seem not modified....)
and for swapping the kernal a RESET has to be performed, Hardware or Software!
Hardware: lowering the /RES line (example: pressing the RESET button on an external card...)
Software: typing "SYS64802"(+"RETURN").
NOTE: the price includes the $ 8 that will be paid as a copyright at the conclusion of the sale.
This mod will be assembled on request, also on sale elsewhere.
20€ (8$ royalty fees included) + eventual Paypal fees + shipping cost
it will be sufficient to plug it on kernal socket and it will work without piercing the case and WITHOUT EXTRA WIRES!
(If your chip is soldered to the motherboard you will need to unsolder it and install a socket)
It's present also a jumper to choose the system standard: PAL or NTSC.
How to handle switching between kernals?
The VIC20 will boot-up with standard kernal (I prefer always that on standard boot-up the machine seem not modified....)
and for swapping the kernal a RESET has to be performed, Hardware or Software!
Hardware: lowering the /RES line (example: pressing the RESET button on an external card...)
Software: typing "SYS64802"(+"RETURN").
NOTE: the price includes the $ 8 that will be paid as a copyright at the conclusion of the sale.
This mod will be assembled on request, also on sale elsewhere.
20€ (8$ royalty fees included) + eventual Paypal fees + shipping cost
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