+ #!+win32
+ (progn
+ ;; Note that SAP conflicts with N in this case, hence the reader
+ ;; conditionals above.
+ (inst mov sap (make-ea :dword :disp +win32-tib-arbitrary-field-offset+) :fs)
+ (inst mov sap (make-ea :dword :base sap :disp 0 :index n :scale 4)))
+ #!-win32