Lecture 10 | Programming Paradigms (Stanford

[algnadjib]

thanks

at 21:25

a line is messing

sp = sp + 8;

sp = sp + 4; <==== this line to deallocate i space

RV = 0;

RET;

[Ferqan1]

Is that for the undergraduate students ?

[ramoncyh]

learn together.my twitter ID:caiyuhui. follow me plz

[alice1cmd]

 snink snink!

[rbscholtus]

There's a lot of concepts covered here: stack, SP, activation record, local vars, parameters passing, pointers, return address.

Motorola 68K has 8 bytes in between local vars and parameters. 4 bytes for the saved PC, and 4 for saving the old value of A6 which is a local stack pointer. LINK creates the space on the stack and initialises A6 to point to it. You access local vars and parameters through A6, and SP is used for dynamically allocating stuff on the stack.

[DisgustingArsehole]

Does anyone else find Professor Cain's little "gulp" noises to be hilarious? Once I noticed them I can't stop noticing them. There's a great one just after 3:00 - he does them in all the videos.

[alice1cmd]

@DisgustingArsehole haha

[finnicky]

Any way to watch this on 1.5x speed? I find it easier to follow televised lectures if they're sped up.

[leodavinci69]

download it first, then you can speed up your player. I also found it easier to watch at 1.5

[ice3715]

Makes sense!

[moeibrahim1]

More curious students will want to also read 'Smashing the Stack for Fun and Profit' by Aleph One. ; )

[alice1cmd]

@moeibrahim1 thx will read

[abeesk]

who is the best, Jerry Caln is the best

[hakerus123]

i don't think so