Search found 7 matches

by JG92
Mon Apr 08, 2019 7:35 pm
Forum: SNESdev
Topic: A question about Tables, indexing, and banks
Replies: 7
Views: 7199

Re: A question Tables, indexing, and banks

This is very helpful thank you. Mode 21 looks interesting but more complicated than mode 20. I'll probably look into it way later on but stick with mode 20 while I am still learning the basics. Those maps from tepples are a great visual! Looks like I am good to go for now. Not to mention a lesson I ...
by JG92
Mon Apr 08, 2019 5:50 pm
Forum: SNESdev
Topic: A question about Tables, indexing, and banks
Replies: 7
Views: 7199

Re: A question Tables, indexing, and banks

Thanks! On that note I'll probably stick with what I am doing now unless I find I have a particular need to use another way. edit: Also I see it now(The 20 & 21 corresponding to LoRom & HiRom). In Neviksti's original header he has it commented: .DB $20 ; Memory Mode ( $20 = Slow LoRom, $21 =...
by JG92
Mon Apr 08, 2019 5:04 pm
Forum: SNESdev
Topic: A question about Tables, indexing, and banks
Replies: 7
Views: 7199

Re: A question Tables, indexing, and banks

Thank you both for the replies. Modifying the DBR is exactly what I was looking for. So now I have: lda #$81 pha plb ldy #$05 ldx $77 lda CollisionMap,y sta $10 Which produces the expected result when my table is stored in bank 1. I can't tell if you're talking about the WLA DX assemblers' concept o...
by JG92
Mon Apr 08, 2019 2:29 pm
Forum: SNESdev
Topic: A question about Tables, indexing, and banks
Replies: 7
Views: 7199

A question about Tables, indexing, and banks

Hello! I've been writing and studying basic SNES/65816 examples that I can look at in a debugger since visually analyzing things enables me to learn better. One of the more basic concepts which I thought I fully understood but apparently don't is tables. My main question is: Is it up to the programm...
by JG92
Wed Mar 27, 2019 10:13 am
Forum: SNESdev
Topic: Questions about NMI, VBlank, DMA, & HDMA
Replies: 9
Views: 7925

Re: Questions about NMI, VBlank, DMA, & HDMA

This is excellent information thank you. I'll keep reviewing, re-reading, and checking out the links provided in the thread. That's the correct phrase. Because of some of your grammar, I have to ask you: is English your native language? If not, what is your native tongue? We have many people here wh...
by JG92
Tue Mar 26, 2019 10:49 pm
Forum: SNESdev
Topic: Questions about NMI, VBlank, DMA, & HDMA
Replies: 9
Views: 7925

Re: Questions about NMI, VBlank, DMA, & HDMA

First and foremost thank you to all 4 of you for your replies. Each one has helped me understand much better certain things I didn't understand before. I'll definitely have to come back and re-read them numerous times though until it's hammered into my brain. However, my initial takeaways are: - All...
by JG92
Tue Mar 26, 2019 7:58 pm
Forum: SNESdev
Topic: Questions about NMI, VBlank, DMA, & HDMA
Replies: 9
Views: 7925

Questions about NMI, VBlank, DMA, & HDMA

Hello, (Disclaimer: I am making some assumptions in my post so if anything is wrong corrections are much appreciated) I am at the beginner stages of learning 65816 for SNES (Been at it for about a week). I've been through and re-read as many newbie friendly documents & tutorials as I can find an...