https://www.nesdev.org/w/index.php?title=INES_Mapper_142&feed=atom&action=history
INES Mapper 142 - Revision history
2024-03-28T20:48:00Z
Revision history for this page on the wiki
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https://www.nesdev.org/w/index.php?title=INES_Mapper_142&diff=5032&oldid=prev
Lidnariq: /* Bank select ($E000-$EFFF) */ Existing games don't seem to write to R0, but m56 does write to R6 and expects no effect
2019-10-02T20:19:57Z
<p><span dir="auto"><span class="autocomment">Bank select ($E000-$EFFF): </span> Existing games don't seem to write to R0, but m56 does write to R6 and expects no effect</span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:19, 2 October 2019</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> +++- Specify which bank register to update on next write to Bank Data register</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> +++- Specify which bank register to update on next write to Bank Data register</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"> 0: Writes to $F000 have no effect</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> 1: Select 8 KB PRG bank at CPU $8000-$9FFF</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> 1: Select 8 KB PRG bank at CPU $8000-$9FFF</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> 2: Select 8 KB PRG bank at CPU $A000-$BFFF</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> 2: Select 8 KB PRG bank at CPU $A000-$BFFF</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> 3: Select 8 KB PRG bank at CPU $C000-$DFFF</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> 3: Select 8 KB PRG bank at CPU $C000-$DFFF</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> 4: Select 8 KB PRG bank at CPU $6000-$7FFF</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> 4: Select 8 KB PRG bank at CPU $6000-$7FFF</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> 5<del style="font-weight: bold; text-decoration: none;">-</del>7: unknown</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <ins style="font-weight: bold; text-decoration: none;">6: Writes to $F000 have no effect</ins></div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Bank data ($F000-$FFFF) ===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Bank data ($F000-$FFFF) ===</div></td></tr>
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Lidnariq
https://www.nesdev.org/w/index.php?title=INES_Mapper_142&diff=5031&oldid=prev
Lidnariq: /* See also */ link back to mapper 56
2019-10-02T19:00:37Z
<p><span dir="auto"><span class="autocomment">See also: </span> link back to mapper 56</span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 19:00, 2 October 2019</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [//forums.nesdev.org/viewtopic.php?p=242685#p242685 PCB photos]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [//forums.nesdev.org/viewtopic.php?p=242685#p242685 PCB photos]</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* [[iNES Mapper 056]] augments this ASIC with some additional hardware</ins></div></td></tr>
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Lidnariq
https://www.nesdev.org/w/index.php?title=INES_Mapper_142&diff=5030&oldid=prev
Lidnariq: add cats
2019-09-24T17:37:27Z
<p>add cats</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:37, 24 September 2019</td>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[iNES Mapper 142]] represents a PCB used for several of Kaiser's unlicensed ports of FDS games. Its UNIF board name is '''UNL-KS7032''', and it features the [[VRC3 pinout|KS202 ASIC]], which is an upgrade to Konami's [[VRC3]].</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">{{DEFAULTSORT:142}}[[Category:Mappers with cycle IRQs]][[Category:iNES Mappers]][[Category:ASIC mappers]][[Category:FDS conversion mappers]][[Category:Mappers with CHR RAM]]</ins>[[iNES Mapper 142]] represents a PCB used for several of Kaiser's unlicensed ports of FDS games. Its UNIF board name is '''UNL-KS7032''', and it features the [[VRC3 pinout|KS202 ASIC]], which is an upgrade to Konami's [[VRC3]].</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Banks ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Banks ==</div></td></tr>
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Lidnariq
https://www.nesdev.org/w/index.php?title=INES_Mapper_142&diff=5029&oldid=prev
NewRisingSun at 12:34, 24 September 2019
2019-09-24T12:34:20Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:34, 24 September 2019</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== IRQ Enable ($C000-$CFFF) ===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== IRQ Enable ($C000-$CFFF) ===</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Kaiser's SMB2J writes $02 or $05 to enable, and $00 to disable.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Kaiser's SMB2J writes $02 or $05 to enable, and $00 to disable<ins style="font-weight: bold; text-decoration: none;">, indicating that bits 1 and 2 may function similarly to the VRC3</ins>.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== IRQ Acknowledge ($D000-$DFFF) ===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== IRQ Acknowledge ($D000-$DFFF) ===</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Any write to this register will acknowledge the pending IRQ, like VRC3</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Any write to this register will acknowledge the pending IRQ, like VRC3<ins style="font-weight: bold; text-decoration: none;">. Unlike a VRC3, $C000 bit 0 must not be moved to bit 1, otherwise SMB2J will freeze.</ins></div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Bank select ($E000-$EFFF) ===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Bank select ($E000-$EFFF) ===</div></td></tr>
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NewRisingSun
https://www.nesdev.org/w/index.php?title=INES_Mapper_142&diff=5028&oldid=prev
NewRisingSun: "The only game writes $FF to enable" -- no, it doesn't?!
2019-09-24T12:08:40Z
<p>"The only game writes $FF to enable" -- no, it doesn't?!</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:08, 24 September 2019</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== IRQ Enable ($C000-$CFFF) ===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== IRQ Enable ($C000-$CFFF) ===</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">The only game </del>writes $<del style="font-weight: bold; text-decoration: none;">FF </del>to enable, and $00 to disable<del style="font-weight: bold; text-decoration: none;">. But it's credible that this register is also like VRC3</del>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Kaiser's SMB2J </ins>writes $<ins style="font-weight: bold; text-decoration: none;">02 or $05 </ins>to enable, and $00 to disable.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== IRQ Acknowledge ($D000-$DFFF) ===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== IRQ Acknowledge ($D000-$DFFF) ===</div></td></tr>
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NewRisingSun
https://www.nesdev.org/w/index.php?title=INES_Mapper_142&diff=5027&oldid=prev
Lidnariq: edit-o
2019-09-24T05:33:29Z
<p>edit-o</p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 05:33, 24 September 2019</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[iNES Mapper 142]] represents a PCB used for several of Kaiser's unlicensed <del style="font-weight: bold; text-decoration: none;">reproductions </del>FDS games. Its UNIF board name is '''UNL-KS7032''', and it features the [[VRC3 pinout|KS202 ASIC]], which is an upgrade to Konami's [[VRC3]].</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[iNES Mapper 142]] represents a PCB used for several of Kaiser's unlicensed <ins style="font-weight: bold; text-decoration: none;">ports of </ins>FDS games. Its UNIF board name is '''UNL-KS7032''', and it features the [[VRC3 pinout|KS202 ASIC]], which is an upgrade to Konami's [[VRC3]].</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Banks ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Banks ==</div></td></tr>
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Lidnariq
https://www.nesdev.org/w/index.php?title=INES_Mapper_142&diff=5026&oldid=prev
Lidnariq: several FDS ports, not just SMB2j
2019-09-24T05:29:12Z
<p>several FDS ports, not just SMB2j</p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 05:29, 24 September 2019</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[iNES Mapper 142]] <del style="font-weight: bold; text-decoration: none;">reportedly </del>represents Kaiser's unlicensed <del style="font-weight: bold; text-decoration: none;">reproduction of Super Mario Bros. 2 (</del>FDS<del style="font-weight: bold; text-decoration: none;">)</del>. Its UNIF board name is '''UNL-KS7032''', and it features the [[VRC3 pinout|KS202 ASIC]], which is <del style="font-weight: bold; text-decoration: none;">a subtle </del>upgrade to Konami's [[VRC3]].</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[iNES Mapper 142]] represents <ins style="font-weight: bold; text-decoration: none;">a PCB used for several of </ins>Kaiser's unlicensed <ins style="font-weight: bold; text-decoration: none;">reproductions </ins>FDS <ins style="font-weight: bold; text-decoration: none;">games</ins>. Its UNIF board name is '''UNL-KS7032''', and it features the [[VRC3 pinout|KS202 ASIC]], which is <ins style="font-weight: bold; text-decoration: none;">an </ins>upgrade to Konami's [[VRC3]].</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Banks ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Banks ==</div></td></tr>
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</table>
Lidnariq
https://www.nesdev.org/w/index.php?title=INES_Mapper_142&diff=5025&oldid=prev
Lidnariq: create from FCEUX's source
2019-09-24T05:21:33Z
<p>create from FCEUX's source</p>
<p><b>New page</b></p><div>[[iNES Mapper 142]] reportedly represents Kaiser's unlicensed reproduction of Super Mario Bros. 2 (FDS). Its UNIF board name is '''UNL-KS7032''', and it features the [[VRC3 pinout|KS202 ASIC]], which is a subtle upgrade to Konami's [[VRC3]].<br />
<br />
== Banks ==<br />
* CPU $6000-$7FFF: 8 KB switchable PRG ROM bank<br />
* CPU $8000-$9FFF: 8 KB switchable PRG ROM bank<br />
* CPU $A000-$BFFF: 8 KB switchable PRG ROM bank<br />
* CPU $C000-$DFFF: 8 KB switchable PRG ROM bank<br />
* CPU $E000-$FFFF: 8 KB PRG ROM bank, fixed to the last bank.<br />
* PPU $0000-$1FFF: 8 KB CHR RAM, unbanked<br />
<br />
== Registers ==<br />
=== IRQ Reload value ($8000-$BFFF) ===<br />
Writes set IRQ reload value, in four four-bit words, same as [[VRC3]]<br />
<br />
=== IRQ Enable ($C000-$CFFF) ===<br />
The only game writes $FF to enable, and $00 to disable. But it's credible that this register is also like VRC3.<br />
<br />
=== IRQ Acknowledge ($D000-$DFFF) ===<br />
Any write to this register will acknowledge the pending IRQ, like VRC3<br />
<br />
=== Bank select ($E000-$EFFF) ===<br />
Select one of four bank registers to update on next write to $F000.<br />
<br />
7 bit 0<br />
---- ----<br />
.... .RRR<br />
|||<br />
+++- Specify which bank register to update on next write to Bank Data register<br />
0: Writes to $F000 have no effect<br />
1: Select 8 KB PRG bank at CPU $8000-$9FFF<br />
2: Select 8 KB PRG bank at CPU $A000-$BFFF<br />
3: Select 8 KB PRG bank at CPU $C000-$DFFF<br />
4: Select 8 KB PRG bank at CPU $6000-$7FFF<br />
5-7: unknown<br />
<br />
=== Bank data ($F000-$FFFF) ===<br />
<br />
7 bit 0<br />
---- ----<br />
.... DDDD<br />
||||<br />
++++- New bank value, based on last value written to Bank select register (mentioned above)<br />
<br />
== See also ==<br />
* [//forums.nesdev.org/viewtopic.php?p=242685#p242685 PCB photos]</div>
Lidnariq