2.9BSD - /usr/src/lib/c/sys/fperr.s

   1: / error = fperr(fpe);
   2: /	  struct fperr *fpe;
   3: 
   4: .globl  _fperr
   5: .globl  cerror
   6: 
   7: _fperr:
   8:         mov     r5, -(sp)
   9:         mov     sp, r5
  10:         sys     local; 9f
  11:         bec     1f
  12:         jmp     cerror
  13: 1:
  14:         mov     4(sp), r5
  15:         mov     r0, (r5)+
  16:         mov     r1, (r5)
  17:         mov     (sp)+, r5
  18:         rts     pc
  19: .data
  20: 9:
  21:         sys     fperr

Defined functions