Lexicon Entry
Windows x64 ABI
Microsoft's calling convention for 64-bit Windows. Notable for its 32-byte 'shadow space' and using RCX, RDX, R8, R9 for the first four arguments.
Related Knowledge & Cross-References
Guide
x86-64 & ARM64 Calling Conventions Demystified
Learn x86-64 and ARM64 calling conventions across Linux, macOS, and Windows. Master parameter passing, stack frames, and register preservation with hands-on assembly examples.