how to Fast Call cdecl api like sqlite3.dll?

[xiaoyao]

MAYBE NOT USE JMP,USE call eax？
my friend write asm code,it's run successful,but i lost the code,He can't be reached now。

' 9: FF D0 call eax

　　push 1
　　push 2
　　call function
　　add　esp, 8　

like this?

function myAdd(byval a as long ,byval b as long) as long
　　push b
　　push a
　　call function (cdecl api ptr)
　　add　esp, 8　
end function