Save and restore r31
Save and restore r31

littledan/Factor,cataska/factor,littledan/Factor,bjourne/factor,bpollack/factor,erg/factor,factor/factor,tgunr/factor,mcandre/factor,bjourne/factor,sarvex/factor-lang,sarvex/factor-lang,bjourne/factor,erg/factor,ehird/factor,bpollack/factor,kingcons/factor,dch/factor,seckar/factor,mcandre/factor,factor/factor,bpollack/factor,jwmerrill/factor,AlexIljin/factor,erg/factor,erg/factor,dch/factor,dharmatech/factor,nicolas-p/factor,bjourne/factor,factor/factor,Keyholder/factor,mrjbq7/factor,littledan/Factor,ehird/factor,ceninan/factor,nicolas-p/factor,jwmerrill/factor,bjourne/factor,Keyholder/factor,ceninan/factor,mrjbq7/factor,AlexIljin/factor,jwmerrill/factor,dharmatech/factor,cataska/factor,dch/factor,tgunr/factor,AlexIljin/factor,sarvex/factor-lang,slavapestov/factor,sarvex/factor-lang,ehird/factor,bpollack/factor,tgunr/factor,AlexIljin/factor,slavapestov/factor,slavapestov/factor,seckar/factor,nicolas-p/factor,AlexIljin/factor,ceninan/factor,cataska/factor,slavapestov/factor,erg/factor,slavapestov/factor,bpollack/factor,dch/factor,mrjbq7/factor,ceninan/factor,factor/factor,nicolas-p/factor,kingcons/factor,bpollack/factor,AlexIljin/factor,nicolas-p/factor,seckar/factor,sarvex/factor-lang,kingcons/factor,kingcons/factor,erg/factor,mrjbq7/factor,dharmatech/factor,cataska/factor,mcandre/factor,Keyholder/factor,littledan/Factor,tgunr/factor,slavapestov/factor,factor/factor,sarvex/factor-lang,mrjbq7/factor,nicolas-p/factor,bpollack/factor,dch/factor,mrjbq7/factor,mcandre/factor,factor/factor,nicolas-p/factor,AlexIljin/factor,erg/factor,bjourne/factor,sarvex/factor-lang,mcandre/factor,mcandre/factor,mcandre/factor,tgunr/factor,dch/factor,bjourne/factor,tgunr/factor,slavapestov/factor