Talk:Comparison of Nintendo mappers: Difference between revisions

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m (finish bus conflicts column)
m (→‎Rare discrete logic: Add the trivial Sunsoft mappers, because they really are discrete logic)
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| [[iNES Mapper 087|87]] || 2 || 32 ||  || 32 || 8 || V/H hardwired || Impossible || No
| [[iNES Mapper 087|87]] || 2 || 32 ||  || 32 || 8 || V/H hardwired || Impossible || No
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| [[iNES Mapper 089|89]] || (2)† || 128 || 16 + 16F || 128 || 8 || 1 || No || Yes
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| [[iNES Mapper 092|92]] || 5+speech || 256 || 16F + 16 || 128 || 8 || V/H hardwired || No || Yes
| [[iNES Mapper 092|92]] || 5+speech || 256 || 16F + 16 || 128 || 8 || V/H hardwired || No || Yes
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| [[iNES Mapper 093|93]] || (2)† || 128 || 16 + 16F || 8‡ || || V/H hardwired || No || Yes
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| [[iNES Mapper 096|96]] || 3 || 128 || 32 || 32RAM || 16 || V/H hardwired || No || Likely
| [[iNES Mapper 096|96]] || 3 || 128 || 32 || 32RAM || 16 || V/H hardwired || No || Likely
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| [[iNES Mapper 152|152]] || 3 || 128 || 16 + 16F || 128 || 8 || 1 || No || Likely
| [[iNES Mapper 152|152]] || 3 || 128 || 16 + 16F || 128 || 8 || 1 || No || Likely
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| [[iNES Mapper 184|184]] || (3)† || 32 || || 32 || 4 + 4 || V/H hardwired || Impossible || No
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† Mappers [[iNES Mapper 089|89]], [[iNES Mapper 093|93]], and [[iNES Mapper 184|184]] exist as a single IC, however their functions are trivially described using a small number of 7400-series ICs, and likely contain multiple silicon dice that were wire bonded together in the same package.
‡ Mapper [[iNES Mapper 093|93]] is technically the same [[iNES Mapper 089|89]] other than mirroring, but it only commercially existed using 8kB of CHR-RAM

Revision as of 19:18, 8 June 2012

Rare discrete logic

You probably don't actually want to use these, especially not #78.

iNES Chips Max PRG PRG bank size Max CHR CHR bank size Mirroring PRG RAM? Bus conflicts?
11 1 128 32 128 8 V/H hardwired No Yes
38 2 128 32 32 8 V/H hardwired Impossible No
70 3 256 16 + 16F 128 8 V/H hardwired No Likely
72 4+speech 256 16 + 16F 128 8 V/H hardwired No Yes
77 4 512 32 32 + 6RAM 2 4 No Likely
78a 5 128 16 + 16F 128 8 V/H switchable No Likely
78b 3 128 16 + 16F 128 8 1 No Likely
79 2 64 32 64 8 V/H hardwired No No
86 3+speech 128 32 64 8 V/H hardwired Impossible No
87 2 32 32 8 V/H hardwired Impossible No
89 (2)† 128 16 + 16F 128 8 1 No Yes
92 5+speech 256 16F + 16 128 8 V/H hardwired No Yes
93 (2)† 128 16 + 16F 8‡ V/H hardwired No Yes
96 3 128 32 32RAM 16 V/H hardwired No Likely
140 3 128 32 128 8 V/H hardwired Impossible No
152 3 128 16 + 16F 128 8 1 No Likely
184 (3)† 32 32 4 + 4 V/H hardwired Impossible No

† Mappers 89, 93, and 184 exist as a single IC, however their functions are trivially described using a small number of 7400-series ICs, and likely contain multiple silicon dice that were wire bonded together in the same package.

‡ Mapper 93 is technically the same 89 other than mirroring, but it only commercially existed using 8kB of CHR-RAM

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