It was a joy... he would be happy for days.

Imagine how happy that person would be when he did it?

yeah true haha, I'd be over the mooon

Inside the CPU

then transistors? lol

It was a joy... he would be happy for days.

i bet years 😆

then transistors? lol

Yep

does Linux still use int 80 to perform syscalls?

i want to learn about pointers in c++ where should i go?

unique_ shared_ or dumb🤣

awesome thanks guys, low levelstuff is really interesting

I cracked my first program when I was 12... in assembly code... I was so happy I ran all around the home... shouting... YES!!! my mom thought I had lost my brain.

I cracked my first program when I was 12... in assembly code... I was so happy I ran all around the home... shouting... YES!!! my mom thought I had lost my brain.

Probably, but a computer takes its place

unique_ shared_ or dumb🤣

what

I wrote an iOS app that calcuated all sorts of Highschool math. that was so fun

never finished it though :(

lol Wolframalpha exists tho

does Linux still use int 80 to perform syscalls?

I think yes

I know, but it was the experience

I think yes

that's unfortunate .. imo

But i didn't look out for it, i just never read something else

Basically in modern c++ you rarely use raw pointers the cppcoreguidelines are a good place to Start

Wait someone into it

Basically in modern c++ you rarely use raw pointers the cppcoreguidelines are a good place to Start

Everything in C++ is a pointer actually...

primitive types are not :)

Unlike Java or C# you don't create object but in C++ you create pointer to the class.

Objective-C sucked like that too

I don't consider this right, since you can create an object class foo{}; foo f;

f is neither a reference, nor a pointer

Basically a pointer is a value pointing at a specific adress in Memory

Basically a pointer is a value pointing at a specific adress in Memory

Yes

does Linux still use int 80 to perform syscalls?

https://en.wikibooks.org/wiki/X86_Assembly/Interfacing_with_Linux#syscall Maybe this will help you

So yeah if you See it that way everything that does not fit Into a register uses a pointer somewhere

But thats more well a asm point of view than a c++ point of view

Everything in C++ is a pointer actually...

Everything is just memory

And that is true for every programming language

C++ is just memory aware

^this Its in the end all just a layer of abstraction

Everything is just memory

Not really pointers are different from objects... point is address to which your variable points to as start...

While object is copy of that class.

While object is copy of that class.

An Object is an instance of a class

Not really pointers are different from objects... point is address to which your variable points to as start...

Pointers are memory locations

Not really pointers are different from objects... point is address to which your variable points to as start...

BTW, in C++, objects are not pointers

An Object is an instance of a class

I used what they really are, you're saying it in techinical term.

Objects are typed instances

Not really pointers are different from objects... point is address to which your variable points to as start...

Just question. What do embedded developers do? I never found my answer

Pointers are typed addresses

I'm embedded developer.

Program the microcontrollers.

I used what they really are, you're saying it in techinical term.

Copy is just wrong imho

Copy is just wrong imho

You're right about that.

Program the microcontrollers.

Examples? What do you mean?

I'm embedded developer.

Nice!

Examples? What do you mean?

Simplest example would be programming arduino for example... you program it using C/C++/Java like programming language thought it's C++ but it's kinda mixed.

Or you could use pure C for microcontrollers from microchip.

Or program ARM using C/C++

I dont get it

What is the end product?

Like your router...

Router has to have a microcontroller to do the processes, it has all the layers for TCP/IP and everything but it needs to even display information using HTTP... that is all done in embedded programming.

Embedded means programming the processor directly... it's not much different from what normal programming is these days but it doesn't have to have OS thought these days people use RTO (real time OS)

So it's more and more like programming a PC but you control GPIO...

So you just write functions right?

Yeah use functions or write functions... depends... as I said like normal programming... but you control IO or GPIO... that is actual pins on microcontrollers...s

I got it

I think

Pin 1 could be connected to let us say a button... and that button would have a function like if pressed it should light up LED or something.

That is the basic difference...

But if you wanna start with embedded system programming using Raspberry Pi is good idea as it's mix of both normal SBC (single board computer) and with many GPIO.

I have raspberry pi

Cool you can use it's GPIO and that'll make it embedded programming actually.

But Don't know what to do with it

You could use them to let us say control a LED or to get input from a push button... but you have to know a little electronics for it.

I dont know if it's bored

https://www.youtube.com/watch?v=J9cEAGTLaC8

https://www.youtube.com/watch?v=J4_pbat8Urg

Hi

if I'm not mistaken, all of our C, C++, JS, whatever gets down to this right?

Lookup.the difference between interpreted langs and compiled langs

I have to train some school teachers on python today... it’s annoying.

I have to train some school teachers on python today... it’s annoying.

Which is the annoying part?

Training people who don’t know anything about programming, programming.

.