core/insn_ldbcde_a.v

   1 `ifdef EXECUTE
   2         `INSN_LDBCDE_A: begin
   3                 case (cycle)
   4                 0:      if (opcode[3]) begin
   5                                 if (opcode[4]) begin `EXEC_READ(`_DE) end
   6                                 else begin `EXEC_READ(`_BC) end
   7                         end else begin
   8                                 if (opcode[4]) begin `EXEC_WRITE(`_DE, `_A) end
   9                                 else begin `EXEC_WRITE(`_BC, `_A) end
  10                         end
  11                 1:      begin
  12                                 `EXEC_INC_PC
  13                                 `EXEC_NEWCYCLE
  14                         end
  15                 endcase
  16         end
  17 `endif
  18
  19 `ifdef WRITEBACK
  20         `INSN_LDBCDE_A: begin
  21                 case (cycle)
  22                 0:      begin end
  23                 1:      if (opcode[3]) `_A <= rdata;
  24                 endcase
  25         end
  26 `endif