FORK (II) 3/15/72 FORK (II) NAME fork -- spawn new process SYNOPSIS sys fork / fork = 2. (new process return) (old process return) DESCRIPTION fork is the only way new processes are created. The new process's core image is a copy of that of the caller of fork; the only distinction is the return location and the fact that r0 in the old process contains the process ID of the new pro- cess. This process ID is used by wait. SEE ALSO wait(II), exec(II) DIAGNOSTICS The error bit (c-bit) is set in the old process if a new process could not be created because of lack of process space. BUGS See wait(II) for a subtile bug in process de- struction.