Can a Sam Coupe emulate a 128k Spectrum?

For experts to discuss very technical stuff and newbies to ask why the Spectrum they bought off ebay doesn't work.
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777
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Can a Sam Coupe emulate a 128k Spectrum?

Post by 777 »

i know it can emulate a 48k machine, so why not a 128k?
i started programming the spectrum when i was 8 :-

1 plot rnd*255,rnd*175
2 goto 1
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8BitAG
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Re: Can a Sam Coupe emulate a 128k Spectrum?

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IIRC, emulating the Spectrum 128K's memory map was the issue. It was possible (and achieved) but not really at a usable speed... only worked at about a 16th of the speed of a real machine.

However, many 128K programs and games were manually converted so they would run on the SAM.
8-bit Text Adventure Gamer - games - research.
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777
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Re: Can a Sam Coupe emulate a 128k Spectrum?

Post by 777 »

8BitAG wrote: Sat Sep 12, 2020 1:04 pm IIRC, emulating the Spectrum 128K's memory map was the issue. It was possible (and achieved) but not really at a usable speed... only worked at about a 16th of the speed of a real machine.

However, many 128K programs and games were manually converted so they would run on the SAM.
what games were converted?
i started programming the spectrum when i was 8 :-

1 plot rnd*255,rnd*175
2 goto 1
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8BitAG
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Re: Can a Sam Coupe emulate a 128k Spectrum?

Post by 8BitAG »

777 wrote: Sat Sep 12, 2020 1:20 pm what games were converted?
I can't recall off the top of my head. They were mostly little patches that you could apply to Spectrum games to get them working on the SAM. I don't think there is a comprehensive list anywhere.

Utilities programs, such as the Professional Adventure Writer, were also patched to work in their 128K forms on the SAM.
8-bit Text Adventure Gamer - games - research.
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PeterJ
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Re: Can a Sam Coupe emulate a 128k Spectrum?

Post by PeterJ »

This will help your understanding [mention]777[/mention]

https://velesoft.speccy.cz/sam_zx128.htm
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777
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Re: Can a Sam Coupe emulate a 128k Spectrum?

Post by 777 »

PeterJ wrote: Sat Sep 12, 2020 1:59 pm This will help your understanding @777

https://velesoft.speccy.cz/sam_zx128.htm
how about ay emulation? only one game on there seems to have it
i started programming the spectrum when i was 8 :-

1 plot rnd*255,rnd*175
2 goto 1
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Stefan
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Re: Can a Sam Coupe emulate a 128k Spectrum?

Post by Stefan »

777 wrote: Sun Sep 13, 2020 1:02 am
PeterJ wrote: Sat Sep 12, 2020 1:59 pm This will help your understanding @777

https://velesoft.speccy.cz/sam_zx128.htm
how about ay emulation? only one game on there seems to have it
https://www.worldofsam.org/products/pla ... am-saa1099
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