assembler 6502 (nes, famicom, dendy), migration from MMC1 card to MMC3 interrupt IRQ

assembler 6502 (nes, famicom, dendy), migration from MMC1 card to MMC3 interrupt IRQ

Not so long ago, I thought about the fact that it would be nice to make a status bar at the bottom of the screen area for my game. The sprite 0 hit algorithm was dropped almost immediately due to the fact that there are already quite complex and difficult mechanics in the project and this mechanic will burden the execution of the nmi vector. Therefore, it was decided to use an IRQ interrupt, and such an interrupt can be generated by the common MMC3 mapper, to which I decided to migrate my code.

Read more

Related posts