General Category > General Discussion
Retron 5 (aka 4)
dashv:
Ozzy,
Very informative. I've never seen such a detailed description of how it works!
TDIRunner:
--- Quote ---Nes zappers do not track horizontal refresh like other system's guns, it only has two bits to check, light sense and trigger, bits 3 and 4 located at registers $4016/$4017.
--- End quote ---
That sounds expensive. ;D
Ozzy_98:
--- Quote from: TDIRunner on June 03, 2014, 08:47:12 AM ---
--- Quote ---Nes zappers do not track horizontal refresh like other system's guns, it only has two bits to check, light sense and trigger, bits 3 and 4 located at registers $4016/$4017.
--- End quote ---
That sounds expensive. ;D
--- End quote ---
Don't make me hit you with a large hex number.
That's how most low-level programming works. You want to do something, you send a number to a specific address. Want to check something, you read said address. Some devices call them pokes and peeks (c64 those were the actual commands).
sheep2001:
And on the speccy. I remember hacking speccy games for infinite lives etc, by poking to a specific address that held the number of lives.
TyrannicalFascist:
So I decided to just go for it and try my Yoshi's Island cart. It was recognized and copied my saves just fine, and they remain on the cart no problem! I played a few levels and when I got to Touch Fuzzy, Get Dizzy in world 1, when I touched a Fuzzy and everything gets all "drunk", the background just went berserk - waaay more than it should on the real system. Other than that though, it seems to work fine from what I can tell.