UNIX 6th Ed. - /usr/source/fort/rt1/atan2.s

   1: /
   2: /
   3: 
   4: / atan2 & datan2 fortran functions
   5: 
   6: .globl  atan2.
   7: .globl  datan2.
   8: 
   9: .globl  retrn
  10: .globl  rerr
  11: .globl  temp
  12: .globl  atan2
  13: 
  14: datan2.:        temp
  15:         .+2
  16:         setd
  17:         br      1f
  18: 
  19: atan2.: temp
  20:         .+2
  21:         setf
  22: 1:
  23:         cmp     *2(sp),$2
  24:         bne     1f
  25:         movf    *2(r3),r0
  26:         movf    *4(r3),r1
  27:         jsr     pc,atan2
  28:         movf    r0,temp
  29:         jmp     retrn
  30: 1:
  31:         jsr     r5,rerr; 3

Defined functions