Lines Matching refs:Z

181  (*) CCR.ICC2.Z [Zero flag]
196 	ICC2.Z is 0, ICC2.C is 1.
198  (2) An interrupt occurs. The exception prologue examines ICC2.Z and
204 	ICC2.Z is set to 1.
208 	ICC2.Z would be set to 0.
210      A TIHI #2 instruction (trap #2 if condition HI - Z==0 && C==0) would
215  (5) An interrupt occurs. The exception prologue examines ICC2.Z and
222 	ICC2.Z would be shifted into the save variable and masked off 
225 	ICC2.Z would then be set to 1 (thus unchanged), and ICC2.C would be
230 	ICC2.Z would be set to indicate the result of XOR'ing the saved
232 	ICC2.Z set.
237      but this would do nothing as Z==1.
241 	ICC2.Z would be cleared. ICC2.C would be left unaffected. Both
245      then trap as both Z==0 [interrupts virtually enabled] and C==0
254      interrupt (ICC2.Z is clear, BEQ fails as per step (2)).