- mem_write: missing return statement added - small fixes in bitblt functions (colorinvert, patterncopy)
- mem_write: missing return statement added
- small fixes in bitblt functions (colorinvert, patterncopy)

dariaphoebe/bochs,dariaphoebe/bochs,dbrashear/bochs,dbrashear/bochs,dariaphoebe/bochs,dariaphoebe/bochs,dbrashear/bochs,dariaphoebe/bochs,dbrashear/bochs,dbrashear/bochs