NES 2.0 Mapper 298: Difference between revisions
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[[Category:Mappers with cycle IRQs]] | [[Category:Mappers with cycle IRQs]] | ||
NES 2.0 Mapper is used for the unlicensed game ''Lethal Weapon'', which is actually a backport of [https://en.wikipedia.org/wiki/Lethal_Enforcers Lethal Enforcers]. Its UNIF board name is '''UNL-TF1201'''. | NES 2.0 Mapper is used for the unlicensed game ''Lethal Weapon'', which is actually a backport of [https://en.wikipedia.org/wiki/Lethal_Enforcers Lethal Enforcers], and not to be confused with the [http://bootgod.dyndns.org:7777/profile.php?id=702 licensed game of the same name]. Its UNIF board name is '''UNL-TF1201'''. | ||
The board uses a [[VRC4]] clone in the VRC4b configuration (CPU 0x02s to VRC4 A0, CPU 0x01s to VRC4 A1). The only difference is that register $F003 is non-functional and any writes to it must be ignored. | The board uses a [[VRC4]] clone in the VRC4b configuration (CPU 0x02s to VRC4 A0, CPU 0x01s to VRC4 A1). The only difference is that register $F003 is non-functional and any writes to it must be ignored, otherwise IRQs would be immediately disabled after having become enabled. | ||
Revision as of 06:36, 14 March 2018
NES 2.0 Mapper is used for the unlicensed game Lethal Weapon, which is actually a backport of Lethal Enforcers, and not to be confused with the licensed game of the same name. Its UNIF board name is UNL-TF1201.
The board uses a VRC4 clone in the VRC4b configuration (CPU 0x02s to VRC4 A0, CPU 0x01s to VRC4 A1). The only difference is that register $F003 is non-functional and any writes to it must be ignored, otherwise IRQs would be immediately disabled after having become enabled.
