core/insn_add_sp_imm8.v

   1 `define INSN_ADD_SP_IMM8                9'b011101000
   2
   3 `ifdef EXECUTE
   4         `INSN_ADD_SP_IMM8: begin
   5                 case (cycle)
   6                 0:      begin
   7                                 `EXEC_INC_PC
   8                         end
   9                 1:      begin
  10                                 `EXEC_READ(`_PC)
  11                         end
  12                 3:      begin
  13                                 `EXEC_NEWCYCLE
  14                                 `EXEC_INC_PC
  15                         end
  16                 endcase
  17         end
  18 `endif
  19
  20 `ifdef WRITEBACK
  21         `INSN_ADD_SP_IMM8: begin
  22                 case (cycle)
  23                 2:      `_SP <= `_SP + {rdata[7] ? 8'hFF : 8'h00, rdata};
  24                 endcase
  25         end
  26 `endif