insn_ld_reg_reg.v

   1 `ifdef EXECUTE
   2         `INSN_LD_reg_reg: begin
   3                 `EXEC_INC_PC;
   4                 `EXEC_NEWCYCLE;
   5                 case (opcode[2:0])
   6                 `INSN_reg_A:    tmp <= registers[`REG_A];
   7                 `INSN_reg_B:    tmp <= registers[`REG_B];
   8                 `INSN_reg_C:    tmp <= registers[`REG_C];
   9                 `INSN_reg_D:    tmp <= registers[`REG_D];
  10                 `INSN_reg_E:    tmp <= registers[`REG_E];
  11                 `INSN_reg_H:    tmp <= registers[`REG_H];
  12                 `INSN_reg_L:    tmp <= registers[`REG_L];
  13                 endcase
  14         end
  15 `endif
  16
  17 `ifdef WRITEBACK
  18         `INSN_LD_reg_reg: begin
  19                 case (opcode[5:3])
  20                 `INSN_reg_A:    registers[`REG_A] <= tmp;
  21                 `INSN_reg_B:    registers[`REG_B] <= tmp;
  22                 `INSN_reg_C:    registers[`REG_C] <= tmp;
  23                 `INSN_reg_D:    registers[`REG_D] <= tmp;
  24                 `INSN_reg_E:    registers[`REG_E] <= tmp;
  25                 `INSN_reg_H:    registers[`REG_H] <= tmp;
  26                 `INSN_reg_L:    registers[`REG_L] <= tmp;
  27                 endcase
  28         end
  29 `endif