core/insn_vop_intr.v

   1 `ifdef EXECUTE
   2         `INSN_VOP_INTR: begin
   3                 case (cycle)
   4                 0:      `EXEC_WRITE(`_SP - 1, `_PCH)
   5                 1:      `EXEC_WRITE(`_SP - 2, `_PCL)
   6                 2:      begin
   7                                 irqack <= 1;
   8                                 `EXEC_NEWCYCLE
   9                         end
  10                 endcase
  11         end
  12 `endif
  13
  14 `ifdef WRITEBACK
  15         `INSN_VOP_INTR: begin
  16                 case (cycle)
  17                 0:      begin end
  18                 1:      begin end
  19                 2:      begin
  20                                 ie <= 0;
  21                                 `_PC <= {8'b0, jaddr};
  22                                 irqack <= 0;    // Must be at the same time as we latch jaddr, or we race!
  23                                 `_SP <= `_SP - 2;
  24                         end
  25                 endcase
  26         end
  27 `endif