This is really low priority, but the build is breaking for me:
; caught error:
; common-lisp:read error during compile-file:
;
; Symbol "DIVSS" not found in the MEZZANO.LAP.X86 package.
;
; Line: 1396, Column: 43, File-Position: 71989
;
; Stream: #<sb-int:form-tracking-stream for "file /Users/markw/mezzano_build/Mezzano/compiler/backend/x86-64/number.lisp" {1006DBFAC3}>