GCC Inline Assembly
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Wayne
GCC’s inline assembly allows us to embed assembly code in C code. C code is much more readable than writing assembly code directly.
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GCC Inline Assembly
- By
GCC’s inline assembly allows us to embed assembly code in C code. C code is much more readable than writing assembly code directly.
x86-64 Calling Conventions
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Calling conventions refers to the specifications that the two functions should follow when one function calls another function. For example, how to pass parameters and a return value between them. Calling conventions are part of the application binary interface (ABI).
Linker Script
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When compiling source files into executable files, GCC compiles source files into object files. Then, the linker links the object files into a executable file with a linker script.
x86 Memory Map
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After the x86 PC boots, it will be in real mode. At this time, we can access memory below 1 MB. However, the BIOS also uses some memory. Therefore, we must know which areas the BIOS occupies in order to avoid them.
