PDP-11 FORTRAN Ⅳ에서의 INTEGER*4 定數 表現方法에 關하여 = On the Representation of NTEGER*4 Constants in PDP-11 FORTRAN Ⅳ

다국어 초록 (Multilingual Abstract)

There are occasions when it is necessary to have the computer represent constants and/or variables in the double integer INTEGER*4.
Generally, INTEGER*4 in FORTRAN Ⅳ languages is permitted on almost all computer systems with the exception of POP-11 series.
In POP-Ⅱ FORTRAN If, an INTEGERs4 declaration allocates two words, which are limited to the values under ±2^(15); furthermore, INTEGER*4 constants over ±2^(15) are not permitted for input or output.
This paper presents the method to convert the input string of INTEGER*4 constants into internal representation and its internal representation into output string by means of the shift-control. This shift-control method allows more than two words to be used to present integer constants.

목차 (Table of Contents)

• Ⅰ. 緖論
• Ⅱ. 內部表現 2進數의 bit와 數値의 對應
• Ⅲ. INTERGER*4 定數의 內部表現
• 1. 負數의 表現
• 2. 入力 string의 內部表現化
• Ⅳ. 內部表現의 出力 code化
• 1. 負數의 表現
• 2. 內部表現 2進數의 BCD encoding
• Ⅴ. 處理結果
• Ⅵ. 結論