Just Enough Assembly for Compiler Explorer
summary
Teaches the concrete bits needed to read Compiler Explorer output: x86_64 calling convention, how the first args live in rdi/rsi and returns in rax, how stack frames use push/pop and rbp/rsp, and why little-endian byte order matters. Demonstrates live examples on Compiler Explorer (godbolt.org), steps through push/pop, lea for arithmetic (used to implement multiply‑by‑two), showing when code inlines or collapses at -O2. Examples are reproduced and verified to behave as shown.
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chapters (14)
- 0:00Intro
- 0:35Compiler Explorer
- 3:58Questions
- 8:18Memory
- 13:44Address Memory
- 18:37Register Sizes
- 20:49Register Types
- 21:14Ins
- 22:41Arrays
- 37:39Loops
- 40:19C Code
- 42:09Calling Convention
- 47:49Lua
- 57:09Optimization
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