code: def to_word(stype):
      
      output = []  # List of instructions
  
      if stype == 'u8':  # Byte to word
          output.append('ld l, a')
          output.append('ld h, 0')
  
      elif stype == 'i8':  # Signed byte to word
          output.append('ld l, a')
          output.append('add a, a')
          output.append('sbc a, a')
          output.append('ld h, a')
  
      elif stype == 'f16':  # Must MOVE HL into DE
          output.append('ex de, hl')
  
      elif stype == 'f':
          output.append('call __FTOU32REG')
          REQUIRES.add('ftou32reg.asm')
  
      return output
docs: Returns the instruction sequence for converting the given
      type stored in DE,HL to word (unsigned) HL.