The history of calling conventions, part 5: amd64

Raymond Chen January 14, 2004 Jan 14, 2004 01/14/04

The last architecture I'm going to cover in this series is the AMD64 architecture (also known as x86-64). The AMD64 takes the traditional x86 and expands the registers to 64 bits, naming them rax, rbx, etc. It also adds eight more general purpose registers, named simply R8 through R15. Here's a sample: On entry to CallThatFunction, the ...