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What is the x64 calling convention in Windows?

Microsoft X64 Calling Convention - The Microsoft x64 calling convention [12] [13] is followed on Windows and pre-boot UEFI (for long mode on x86-64). It uses registers RCX, RDX, R8, R9 for the first four integer or pointer arguments (in that order), and XMM0, XMM1, XMM2, XMM3 are used for floating point arguments.

What is the calling convention of AMD64 ABI in Linux?

The calling convention of the System V AMD64 ABI is followed on GNU/ Linux. The registers RDI, RSI, RDX, RCX, R8, and R9 are used for integer and memory address arguments and XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6 and XMM7 are used for floating point arguments. For system calls, R10 is used instead of RCX.

What is the C calling convention?

The C calling convention is based heavily on the use of the hardware-supported stack. To understand the C calling convention, you should first make sure that you fully understand the push, pop, call, and ret instructions – these will be the basis for most of the rules.

What are the x86 calling conventions?

List of x86 calling conventions Archi­tecture Name Operating system, compiler Parameters Parameters Registers Stack order 8086 cdecl RTL (C) 8086 Pascal LTR (Pascal) 8086 fastcall (non-member) Microsoft AX, DX, BX LTR (Pascal) 14 more rows ...

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