It be back!
VIC20 FULL-RAM expansion cartridge +37K RAM with RESET, golden fingers edition!
Every VIC 20 expandable memory areas can be covered (also the I/Os areas), and BLK 5 can also be write protected!
Dip-switch:
1.) 8K= BLK1: $2000-$3FFF (8192-16383)
2.) 8K= BLK2: $4000-$5FFF (16384-24575)
3.) 8K= BLK3: $6000-$7FFF (24576-32767)
4.) ON= BLK5 write protected
5.) 8K= BLK5: $A000-$BFFF (40960-49151)
6.) 3K= RAM1,2,3: $0400-$0FFF (1024-4095)
7.) 2K= I/O2,3: $9800-$9FFF (38912-40959)
8.) ON= enable expansion cartridge
Total of +37K of RAM for your VIC20!
NOTE:
The 2K IOs area is important because is unusual,
the perfect place for a speedloader like "RABBIT" for tape: Rabbit-sys38912.prg or for software-kernal simil-jiffydos: tokra_2K_SJload_$98.prg
About how VIC20 manage memory areas in relationship at which areas are expanded
This cartridge will be assembled on request, also on sale elsewhere.
price: 20€+shipment, +PayPal fees
Do you want a simpler memory expansion?
have a look: https://www.amibay.com/showthread.php?114214-VIC20-SMART-RAM-a-versatile-RAM-expansion-cartridge-up-to-37k
VIC20 FULL-RAM expansion cartridge +37K RAM with RESET, golden fingers edition!
Every VIC 20 expandable memory areas can be covered (also the I/Os areas), and BLK 5 can also be write protected!
Dip-switch:
1.) 8K= BLK1: $2000-$3FFF (8192-16383)
2.) 8K= BLK2: $4000-$5FFF (16384-24575)
3.) 8K= BLK3: $6000-$7FFF (24576-32767)
4.) ON= BLK5 write protected
5.) 8K= BLK5: $A000-$BFFF (40960-49151)
6.) 3K= RAM1,2,3: $0400-$0FFF (1024-4095)
7.) 2K= I/O2,3: $9800-$9FFF (38912-40959)
8.) ON= enable expansion cartridge
Total of +37K of RAM for your VIC20!
NOTE:
The 2K IOs area is important because is unusual,
the perfect place for a speedloader like "RABBIT" for tape: Rabbit-sys38912.prg or for software-kernal simil-jiffydos: tokra_2K_SJload_$98.prg
About how VIC20 manage memory areas in relationship at which areas are expanded
This cartridge will be assembled on request, also on sale elsewhere.
price: 20€+shipment, +PayPal fees
Do you want a simpler memory expansion?
have a look: https://www.amibay.com/showthread.php?114214-VIC20-SMART-RAM-a-versatile-RAM-expansion-cartridge-up-to-37k
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