nesdev.org

Sounds like the SalesForce of nes dev world haha: "clicks over code", welcome to NES CRM.

Bregalad wrote: ↑Sun Jan 12, 2020 11:06 am <cool stuffs>

I thought I remembered you posted GBA sound engine info, and upgrading some of the ones used in games? Do you have a doc or such for all that related work?

Are you putting together a retro system or just specing out one? As for replicating PSG to WSG (PCE) range, I mean you can do that with a tiny dedicated off-the-shelf MCU if needed as opposed to an FPGA - if you're not experienced with FPGAs. Like a 20mhz TinyAVR 8bit MCU (everything is internal). S...

dougeff wrote: ↑Thu Jan 09, 2020 4:27 pm According to Google, PCX is a palette indexed file format used by the DOS program PC paintbrush, mostly in the 1980s, and has since been replaced with BMP, GIF, and PNG file formats.

How old is this SNES tutorial?

PCX files were used throughout the 2000's. Have you never seen that format???

In my opinion, the SMS is a "fully baked" design with a lot of compromises – due largely to its ancestry of off-the-shelf parts – while the NES is a "half-baked" design with a lot of accidental (and powerful and relevant) flexibility. This haha. Z80 is roughly equal to 6502 when...

Thought it was just the title screen that was in chr-rom (it's been too long so I can't remember; I emulated SMB on the PCE). But if there is more related data in PPU address space; maybe it has to do something with the "first read from PPU memory after address set needs to be ignored" iss...

Do any other the assemblers, besides nesasm, support including binary files and then setting destination address to overwrite part of them?

as long as I install the ideaVim plugin to get vi key mappings. Hah! I'm not a Vi(m) fan, but I'm ever too lazy to switch the editor for GIT when I need to squash my commits, so I use it for that. But I never got into the whole Vim thing. I used Nano where I could for linux or bash environments. Gu...

Having already done a simple C compiler with Lex and Yacc, I'd probably just tokenize everything and then build syntax tree. You can then iterate over the tree until all macros and symbols have been resolved.

The 2k table one is still pretty valid haha. I mean c64 guys use it and they just have 64k of ram (part of which is video ram).

Yeah. Probably best in other retro section. The claims are pretty crazy. The 16bit addition one is great. Their example source is a single ADD rr,rr (being whatever pairs that are valid), but clearly omit the part you need to LOAD those regs with values. I mean, if all you did was that ADD instructi...

https://segaretro.org/Sega_Master_Syste ... comparison

It's great haha. Apparently, to get a systems' total "bus" width, you just add them altogether! Among other things
How is this site still around??? Crazy.

https://gitlab.com/RickSugar/hupcm-driver I've had this for a number of years and really didn't do anything with it, so I figured I'll make it public. It's a sample based player for the PCE. There are 6 channels total; 4 have frequency scaling and 2 are fixed frequency (7khz). Everything runs off th...

Indeed, the SuperGrafx has window registers in which you could construct non-square shapes. It had two windows with 4 overlapping states, but because all window sizes have to start from the left, only three of those four states can be used to draw shapes. I.e. you can only have 3 unique window setti...

Ohh.. what tepples posted reminded me... is the SAT modifiable mid screen?