code: def p_LD_reg_val(p):
      
      s = 'LD %s,N' % p[2]
      if p[2] in REGS16:
          s += 'N'
  
      p[0] = Asm(p.lineno(1), s, p[4])
docs: asm : LD reg8 COMMA expr
              | LD reg8 COMMA pexpr
              | LD reg16 COMMA expr
              | LD reg8_hl COMMA expr
              | LD A COMMA expr
              | LD SP COMMA expr
              | LD reg8i COMMA expr