Sam Coupé developer, Colin Piggot (aka Quazar) has been working on a device that allows you to play Vic-20 cartridges on the Sam.
Piggot said "My interface allows the SAM to read in the cartridge ROM code which is then fed to a tweaked version of a VIC-20 emulator that was written many years ago by Simon Owen, which is pretty clever stuff to emulate it on a Z80 machine. While the original emulator release just upported a couple games as snapshots, I've been working on fixes and patches to get it working with more games from the real cartridges. So far I've six* games working fine, most slow due to emulating the 6502 CPU + VIC on a 6MHz Z80, but some do run well - video attached of Raid On Fort Knox.
"It really started off as one of my own follies, seeing if I could get the VIC cartridges working on SAM, and it's taken off from there! I've had to relearn 6502 assembly as well as the VIC-20 architecture, which has been quite fun!"
The device appears to be a limited edition of 10, and you can follow the progress on the Quazar account on Twitter and Mastodon. His official website is here, and online store here.
*Piggot has also recently added support for some Scott Adams adventures so the number is likely higher now.
Piggot said "My interface allows the SAM to read in the cartridge ROM code which is then fed to a tweaked version of a VIC-20 emulator that was written many years ago by Simon Owen, which is pretty clever stuff to emulate it on a Z80 machine. While the original emulator release just upported a couple games as snapshots, I've been working on fixes and patches to get it working with more games from the real cartridges. So far I've six* games working fine, most slow due to emulating the 6502 CPU + VIC on a 6MHz Z80, but some do run well - video attached of Raid On Fort Knox.
"It really started off as one of my own follies, seeing if I could get the VIC cartridges working on SAM, and it's taken off from there! I've had to relearn 6502 assembly as well as the VIC-20 architecture, which has been quite fun!"
The device appears to be a limited edition of 10, and you can follow the progress on the Quazar account on Twitter and Mastodon. His official website is here, and online store here.
*Piggot has also recently added support for some Scott Adams adventures so the number is likely higher now.
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