Talk:NES 2.0 Mapper 268: Difference between revisions
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Why do we need a submapper for this? As I see it, it's merely submapper 2/3 with A20/A21/A22 in a different order. [[User:NewRisingSun|NewRisingSun]] ([[User talk:NewRisingSun|talk]]) 20:03, 7 December 2022 (UTC) | Why do we need a submapper for this? As I see it, it's merely submapper 2/3 with A20/A21/A22 in a different order. [[User:NewRisingSun|NewRisingSun]] ([[User talk:NewRisingSun|talk]]) 20:03, 7 December 2022 (UTC) | ||
: So, it's not compatible with 2/3 because of A20/A21/A22 in a different order. There are ROMs which can't be emulated using existing submappers. I see no reason why they shouldn't be added. Also, AFAIK from the developer, all new ASICs will use this submapper. [[User:Cluster|Cluster]] ([[User talk:Cluster|talk]]) 15:19, 8 December 2022 (UTC) | : So, it's not compatible with 2/3 because of A20/A21/A22 in a different order. There are ROMs which can't be emulated using existing submappers. I see no reason why they shouldn't be added. Also, AFAIK from the developer, all new ASICs will use this submapper. [[User:Cluster|Cluster]] ([[User talk:Cluster|talk]]) 15:19, 8 December 2022 (UTC) | ||
:: The reason is that there can only be sixteen submappers, or eight pairs of two, so I don't want to waste them. It must be investigated whether the address order of 2 and 8, respectively are indeed correct, or one is based on misordered ROM files. Misordered ROM files should be correctly ordered instead of adding submappers for incorrectly-ordered ROM files. What is the source for the submapper 8 address line order? [[User:NewRisingSun|NewRisingSun]] ([[User talk:NewRisingSun|talk]]) 18:01, 8 December 2022 (UTC) | |||
Revision as of 18:01, 8 December 2022
Official documentation
I added files shared by the original developer of this mapper. There is some interesting info that can be added to the article. Cluster (talk) 00:15, 30 July 2021 (UTC)
Submapper 8/9
Why do we need a submapper for this? As I see it, it's merely submapper 2/3 with A20/A21/A22 in a different order. NewRisingSun (talk) 20:03, 7 December 2022 (UTC)
- So, it's not compatible with 2/3 because of A20/A21/A22 in a different order. There are ROMs which can't be emulated using existing submappers. I see no reason why they shouldn't be added. Also, AFAIK from the developer, all new ASICs will use this submapper. Cluster (talk) 15:19, 8 December 2022 (UTC)
- The reason is that there can only be sixteen submappers, or eight pairs of two, so I don't want to waste them. It must be investigated whether the address order of 2 and 8, respectively are indeed correct, or one is based on misordered ROM files. Misordered ROM files should be correctly ordered instead of adding submappers for incorrectly-ordered ROM files. What is the source for the submapper 8 address line order? NewRisingSun (talk) 18:01, 8 December 2022 (UTC)
