- (copy-from-system-area pc (* sb!vm:byte-bits 5)
- vector (* sb!vm:n-word-bits
- sb!vm:vector-data-offset)
- (* length sb!vm:byte-bits))
+ (copy-from-system-area pc (* n-byte-bits 5)
+ vector (* n-word-bits vector-data-offset)
+ (* length n-byte-bits))