Lesson P11 - Joystick Reading on the Genesis

ASM Programming for the Genesis / Megadrive
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akuyou
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Lesson P11 - Joystick Reading on the Genesis

Post by akuyou » Mon Jun 03, 2019 9:46 pm

The original Genesis controller had 3 fire buttons, and one select... but later on, to compete with the SNES an extra 3 buttons were added,

We need to use a control port to select the keys to read in, then read the actulal keystates from a second port, Lets take a look!

http://www.chibiakumas.com/68000/platfo ... #LessonP11

Chibi Akuma(s) Comedy-Horror 8-bit Bullet Hell shooter! // 「チビ悪魔」可笑しいゴシックSTG ! // Work in Progress: ChibiAliens

Interested in CPU's :Z80,6502,68000,6809,ARM,8086,RISC-V
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