Just enough Assembly for Compiler Explorer
summary
Covers concrete x86_64 details you can use on Compiler Explorer: the System V AMD64 calling convention puts integer args in RDI/RSI, return values in RAX/EAX, and functions preserve RB P while reserving stack space by subtracting from RSP. Shows exact instructions used — mov, add, lea, push/pop, cmp/test and conditional jumps — walks through a sum and a times2 example compiled with GCC 9.1 and -O1 demonstrating inlining and leaving out needless moves. Advises making a single-file reproduction for experimentation.
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chapters (13)
- 0:00Introduction to assembly
- 3:02Understanding registers
- 6:17Basic instructions
- 9:16Memory and the stack
- 12:28Memory addressing
- 15:32Data types and sizes
- 18:43Arrays and addressing
- 23:11Control flow
- 27:25Loops in assembly
- 30:06Function calling convention
- 36:42Function calls and scope
- 41:46Compiler optimizations
- 49:25Best practices for analysis
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