nesdev.com

I would possibly structure it like:

You can only customize the palette if you change the PPU, or attach some extra hardware to it (e.g. NESRGB and Hi-Def NES ), which means the console has to be modified. It can't possibly be done from the cartridge side, because the cartridge is not at all involved with color generation, so there're...

Philip K. Dick has a ton of excellent short stories if you just want something quick and easy.

I just installed Windows 10 and found the install quick and easy and the OS itself to run beautifully. I installed some basic drivers (I think only nvidia video drivers actually) and my computer is running better than ever. There are many different configurations of hardware, so not sure why it does...

To put it another way: BEFORE an addition with carry, you could think of carry as bit 8 from the previous addition, but it will now be added to bit 0 of the current addition. AFTER an addition with carry, carry holds bit 8, and will be cleared or set to reflect what bit 8 would be (If there was a bi...

For myself, I just remember which is which by thinking "S is greater than C". CMP works just like the SBC instruction but without modifying the accumulator, so as you can see now, it also affects the carry flag in the same way. Unlike SBC, I'm pretty sure it doesn't use the carry flag as part of th...

tepples wrote: To set a flag, beating the article by one byte but adding two cycles:

Code: Select all

sec
ror flag

As well as not modifying any registers!

It's trendy give things arbitrary names that have nothing to do with the thing. Examples: Chrome, Apache, or tangerine, a bank:
http://www.tangerine.ca

I was using symbols to keep track of what macros were doing...it seems I can make the symbols global and access them with ::, but that definitely sounds like a bug to me. Not sure if this was mentioned exactly: You can create scopes that are for your macro and related macros, like: .scope mysuperma...

tokumaru wrote:I see... so the scope is probably being opened and closed before the include itself is executed

I think this is basically what is happening.

Hope that makes sense. Actually... I'm pretty confused! I couldn't find anything about resZP or resBSS, not in the documentation you liked to nor in the SMB High Level Disassembly files... What am I missing? These are separate macros just used as an example. They use .struct and track RAM usage. I ...

Some documentation for the "highlevel macros" https://www.assembla.com/spaces/ca65hl/wiki As far as reserving RAM, you can use .struct with macros to define your variables yourself, as constants at assemble time. This is not the intended use, but I do it. resZP baz .word ; or, multiple declarations ...

Here's one option: .struct foo padding .res 10 ; or whatever other size bar .byte ; ... .endstruct Just to add, I'm pretty sure you can omit the name: .struct foo .res 10 ; or whatever other size, or expression you want here (if it is constant at assemble time) bar .byte ; ... .endstruct

Macros aren't library calls. Personally I don't like ADD and SUB macros because I don't want to get in the habit of using them and missing opportunities to optimize where the carry flag is already in the correct state. But macros can be super helpful.

Maybe just as important as learning the C language, one should adopt a style for how you space out source code and name variables, etc. Figure out what works for you and be consistent.
Search google: http://www.google.com/search?q=C+progra ... tyle+guide