2.11BSD#431 - /usr/src/sys/pdp/__spl0.s

   1: #include "DEFS.h"
   2:         ENTRY(_spl0)
   3:         clrb 177776
   4:         rts pc
   5: 
   6: / C call "_spl0();" will set processor priority to 0
   7: 
   8: / The entry is not implemented in 2.11BSD by an explicit routine but
   9: / translated into inline code equivalent to the routine above by a sed
  10: / script during the compilation of kernel code.
  11: 
  12:         ENTRY(spl0)
  13:         movb 177776,r0
  14:         clrb 177776
  15:         rts pc
  16: 
  17: / C call "opri = spl0();" will set processor priority to 0
  18: / and return the current processor priority
  19: 
  20: / The entry is not implemented in 2.11BSD by an explicit routine but
  21: / translated into inline code equivalent to the routine above by a sed
  22: / script during the compilation of kernel code.

Defined functions