1. Visual Studio x64 C Compiler function entrance code
Kei Hasegawa

2. At the top address of function
rsp
function return address

3. rsp
function return address
rcx
rdx
Save parameter registers r8 r9

4. rsp
rdi
push rbp and rdi
rbp
function return address
rcx
rdx r8 r9

5. rsp
allocate stack
(depends on function)
rdi
rbp
function return address
rcx
rdx r8 r9

6. Update rbp and rdi rdi rsp rbp rdi rbp function return address rcx rdx

7. Fill stack area with 0xcc
rsp
rbp
Fill stack area with 0xcc
rdi
rdi
rbp
function return address
rcx
rdx r8 r9