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Update x86 assembly slides

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dwrz
2026-10-27 12:41:06 +00:00
parent dcacadffc0
commit b4196dcfaa
1 changed files with 11 additions and 4 deletions
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x86-assembly/slides.org
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@@ -205,7 +205,7 @@ void exit_group(int status);
* 18. Exit * 18. Exit
[[file:src/exit/exit.s:]] [[file:src/exit/exit.s]]
* 19. Assemble, Link, Execute, Trace * 19. Assemble, Link, Execute, Trace
#+begin_src bash #+begin_src bash
@@ -237,12 +237,12 @@ strace ./exit
- Reverse Engineering - Reverse Engineering
* 22. Instructions * 22. Instructions
- Represented by numbers (opcodes).
- Describe an operation the CPU should perform, e.g.: - Describe an operation the CPU should perform, e.g.:
- Move data in and out of registers - Move data in and out of registers
- Modify register contents - Modify register contents
- Modify stack - Modify stack
- Control program flow - Control program flow
- Represented by numbers (opcodes).
* 23. Instruction Cycle * 23. Instruction Cycle
- On every tick of its internal clock, the CPU: - On every tick of its internal clock, the CPU:
@@ -251,6 +251,14 @@ strace ./exit
- *Executes* the instruction. - *Executes* the instruction.
- Increments the instruction pointer. - Increments the instruction pointer.
#+begin_src bash
hexdump -C exit
#+end_src
#+begin_src bash
objdump -D exit
#+end_src
* 24. Registers * 24. Registers
- Storage on the CPU (fastest storage). - Storage on the CPU (fastest storage).
- Act as a scratchpad -- temporary variables. - Act as a scratchpad -- temporary variables.
@@ -285,7 +293,7 @@ Assembly sections refer to executable's memory layout:
| RODATA | --> const str = "Hello, World"; | RODATA | --> const str = "Hello, World";
| DATA | --> var str = "Hello, World"; | DATA | --> var str = "Hello, World";
| BSS | --> var str; | BSS | --> var str;
| ↓ HEAP ↓ | | ↓ HEAP ↓ | --> (for traditional C)
| | | |
| ↑ STACK ↑ | | ↑ STACK ↑ |
|-----------| |-----------|
@@ -385,7 +393,6 @@ node -e ""
- Davy Wybiral, [[https://www.youtube.com/playlist?list=PLmxT2pVYo5LB5EzTPZGfFN0c2GDiSXgQe][Intro to x86 Assembly Language]] - Davy Wybiral, [[https://www.youtube.com/playlist?list=PLmxT2pVYo5LB5EzTPZGfFN0c2GDiSXgQe][Intro to x86 Assembly Language]]
- Jennifer Rexford, [[https://www.cs.princeton.edu/courses/archive/fall05/cos217/][Princeton COS 217: Introduction to Programming Systems]] - Jennifer Rexford, [[https://www.cs.princeton.edu/courses/archive/fall05/cos217/][Princeton COS 217: Introduction to Programming Systems]]
- [[https://en.wikipedia.org/wiki/Objdump][objdump]]
- [[https://en.wikipedia.org/wiki/Structured_program_theorem][Structured Program Theorem]] - [[https://en.wikipedia.org/wiki/Structured_program_theorem][Structured Program Theorem]]
- [[https://www.gnu.org/software/gdb/][GDB]] - [[https://www.gnu.org/software/gdb/][GDB]]
- [[https://www.youtube.com/watch?v=tpIctyqH29Q&list=PL8dPuuaLjXtNlUrzyH5r6jN9ulIgZBpdo][Crash Course: Computer Science]] - [[https://www.youtube.com/watch?v=tpIctyqH29Q&list=PL8dPuuaLjXtNlUrzyH5r6jN9ulIgZBpdo][Crash Course: Computer Science]]