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I’m writing some methods in C that must run very efficiently, so I’d like to manually edit some of the assembly code that is automatically generated.
I know how to read the assembly code using gdb or “objdump -d myfile.o”, but can anyone tell me how to edit this code? (Will probably just be minor tweaks.)
Sure. It’s called “inline assembly”, and most compilers support it.
Here’s an example using GCC: