2.11BSD#431 - /usr/src/ucb/pascal/px/07sub.s

   1: /
   2: / SUBTRACTION
   3: /
   4: _SUB42:
   5:         mov     (sp)+,r0
   6:         mov     (sp)+,r1
   7:         br      1f
   8: _SUB2:
   9:         mov     (sp)+,r1
  10:         sxt     r0
  11: 1:
  12:         mov     (sp)+,r3
  13:         sxt     r2
  14:         sub     r1,r3
  15:         sbc     r2
  16:         sub     r0,r2
  17:         mov     r3,-(sp)
  18:         mov     r2,-(sp)
  19:         return
  20: _SUB24:
  21:         mov     (sp)+,r1
  22:         sxt     r0
  23:         sub     r1,2(sp)
  24:         adc     r0
  25:         sub     r0,(sp)
  26:         return
  27: _SUB4:
  28:         sub     (sp)+,2(sp)
  29:         sub     (sp)+,2(sp)
  30:         sbc     (sp)
  31:         return
  32: _SUB8:
  33:         movf    (sp)+,fr0
  34:         movf    (sp)+,fr2
  35:         subf    fr0,fr2
  36:         cfcc
  37:         bvs     9f
  38:         movf    fr2,-(sp)
  39:         return
  40: _SUB28:
  41:         tst     (sp)
  42:         sxt     -(sp)
  43: _SUB48:
  44:         movif   (sp)+,fr0
  45:         movf    (sp)+,fr2
  46:         subf    fr0,fr2
  47:         cfcc
  48:         bvs     9f
  49:         movf    fr2,-(sp)
  50:         return
  51: _SUB82:
  52:         movf    (sp)+,fr0
  53:         tst     (sp)
  54:         sxt     -(sp)
  55:         br      1f
  56: _SUB84:
  57:         movf    (sp)+,fr0
  58: 1:
  59:         movif   (sp)+,fr2
  60:         subf    fr0,fr2
  61:         cfcc
  62:         bvs     9f
  63:         movf    fr2,-(sp)
  64:         return
  65: 9:
  66:         jmp     fpovflo

Defined functions