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1.1 ! root 1: | /* Copyright (c) 1982, Regents, University of California */ ! 2: | ! 3: | $Header: emul.s,v 1.2 83/11/26 12:13:45 sklower Exp $ ! 4: | $Locker: $ ! 5: | ! 6: .text ! 7: .globl _emul ! 8: _emul: ! 9: link a6,#-_F1 ! 10: moveml #_S1,a6@(-_F1) ! 11: movl a6@(20),a5 ! 12: | A1 = 24 ! 13: clrb a6@(-9) ! 14: clrb a6@(-13) ! 15: clrl d7 ! 16: tstl a6@(8) ! 17: bge .L13 ! 18: eorb #1,a6@(-9) ! 19: negl a6@(8) ! 20: .L13: ! 21: tstl a6@(12) ! 22: bge .L14 ! 23: eorb #1,a6@(-9) ! 24: negl a6@(12) ! 25: .L14: ! 26: movw a6@(10),d1 ! 27: mulu a6@(14),d1 ! 28: movl d1,a6@(-4) ! 29: movw a6@(8),d1 ! 30: mulu a6@(12),d1 ! 31: movl d1,a6@(-8) ! 32: movw a6@(8),d1 ! 33: mulu a6@(14),d1 ! 34: addl d1,a6@(-6) ! 35: bcc .L16 ! 36: addqw #1,a6@(-8) ! 37: .L16: ! 38: movw a6@(10),d1 ! 39: mulu a6@(12),d1 ! 40: addl d1,a6@(-6) ! 41: bcc .L17 ! 42: addqw #1,a6@(-8) ! 43: .L17: ! 44: tstb a6@(-9) ! 45: beq .L18 ! 46: negl a6@(-4) ! 47: negxl a6@(-8) ! 48: .L18: ! 49: tstl a6@(16) ! 50: bge .L20 ! 51: moveq #-1,d7 ! 52: .L20: ! 53: movl a6@(-8),d1 ! 54: movl a6@(16),d0 ! 55: addl a6@(-4),d0 ! 56: addxl d1,d7 ! 57: movl d0,a5@(4) ! 58: movl d7,a5@ ! 59: .L12: moveml a6@(-_F1),#8320 ! 60: unlk a6 ! 61: rts ! 62: _F1 = 24 ! 63: _S1 = 8320 ! 64: | M1 = 0
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