Call Conventions

Platform	Return Value	Parameter Register	Additional Parameters	Stack Alignment	Sratch Registers	Preserved Registers	Call List
System V i386	eax,edx	none	stack (right to left)		eax,ecx,edx	ebx,esi,edi,edp,esp	ebp
System V x86_64	rax,rdx	rdi,rsi,rdx,rcx,r8,r9	stack (right to left)	16-byte at call	rax,rdi,rsi,rdx,rcx,r8,r9,r10,r11	rbx,rsp,rbp,r12,r13,r14,r15	rbp
Microsoft x64	rax	rci,rdi,r8,r9	stack (right to left)	16-byte at call	rax,rci,rdi,rdx,r8,r9,r10,r11	rbx,rdi,rsi,rsp,rbp,r10,r11,r12,r13,r14,r14	rbp
ARM	r0,r1	r0,r1,r2,r3	stack	byte-byte	r0,r1,r2,r3,r12	r4,r5,r6,r7,r8r,9,r10,r11,r13,r14