nesdev.org

Thanks for all of your feedback. It seems there is no universal programmer that fits the product mix I want. I am going to use my Arduino board as an ISP programming board for ATMega chips, and I'm going to use the Parallel port on the motherboard of my MAME console to program ROMs with the programm...

One very small thing: the player sprite isn't visible during fade in. Right, I hadn't thought about that... I guess I could wait until I have all objects created, then run the sprite generator once before fade-in. Thanks! nub question from total nub: are those fade outs done via code instructing pa...

also, homeboy's head is really skinny!

Yea, I need to fix that Thank you for the feedback! This is very encouraging!

Hi all. I just bought what I thought was a cheap USB chip programmer off eBay. It's not (I'll be giving it away soon). Anyway, I am looking for suggestions for a good chip programmer that supports a wide range of memory and MCU's. My budget is $100 to $150. Any suggestions? It needs to be 100% USB (...

Wow, that's great! That's awesome that it's got an edit mode too

One bug I noticed, if I am standing right next to a step on Level 2 I can't jump.

Please post your results! I'd love to see them

Good news! I got bored so I whipped up a Python program to compress FCEUX FM2 input movies into the format I documented above. I tested this with a ~18 minute run of SMB1 and a ~6 minute run of SMB1. Both came out to about 6% of the uncompressed (one byte per frame) size. Download Link (GPL V3, Requ...

Congratulations on that, but I think you should increase the initial speed of jumps. Rignt now it feels "sluggish". Just a suggestion. I feel that too, but right now it's a trade-off between how controllable the jump height is and how fast the initial jump is. I'll be tweaking on this a b...

I worked on an AVR-based solution to play back a TAS over the controller port (never finished :( ). Here's the compression scheme I used for this project. I've converted it to C for readability. typedef struct { byte num_frames; // The number of frames to hold this input byte. byte input; // The lit...

Perhaps some small amount of "skidding" when turning around like RT-55J said. But not much at all, that would be annoying. Working on this now :D The only thing that can be annoying is that when jumping up, and when you miss the platform on the screen up, and you fall down again, there ar...

Wow, I'm really in over my head Thank you for working on this Kyuusaku!

qbradq, there is no clock enable, but that's what the other '139 is for, you decode R//W and "PRG /CE" (/ROMSEL) to the clock pulse line. Data is sampled on the falling edge of "M2" (Phi2) which is also the rising edge of /ROMSEL (which is delayed but data is still valid). This ...

Wow, thanks for all the feedback! unregistered Posted: Thu Mar 24, 2011 3:22 pm    Post subject: playing using a real nes controller... the character feels too heavy imo. Nice job on the graphics! Do you mean when walking or jumping? The character does have a nice inertial feel, but this is ruined b...

So cascade both halves of the '139. Gotcha; thanks. I was just looking for some way to integrate bus conflict avoidance. If you've found some other way to invert R/W to produce /OE, that's even better. The idea is ROM chip will be disabled when the RAM chip is enabled. I've taken care of that with ...

Update I have tightened up the controls, redone several of the tiles, added zombies, AI, damage, player attacks and enemy deaths. Give it a try :D Also updated the screenshot. ROM Download (iNES 1 Format) Original Post I'm back again with another demo! Yay! I really learned a *lot* from my attempt ...