英文:

Hex to dec misunderstanding

问题

I'm trying to get clear with dbf file structure.
我试图理清dbf文件的结构。

I read that
我读到过

offset 4 - 7 Number of records
偏移 4 - 7 记录数

I opened random dbf file with 10148 rows in hex editor and here is offset:
我在十六进制编辑器中打开了一个随机的dbf文件，有10148行，这里是偏移量：

A4 27 00 00

I try to convert it to dec. Online converter says: 42023
我尝试将其转换为十进制。在线转换器显示：42023

But my hex editor shows 10148
但我的十六进制编辑器显示10148

I tried to reverse conversion and online converter said that
我尝试进行反向转换，在线转换器显示：

10148 = 27 A4

Byte order is reversed
字节顺序被颠倒了

I think that there is about Big And little endian byte order.
我认为这涉及到大端和小端字节顺序的问题。

The question is how to define which order is used in offset?
问题是如何确定在偏移量中使用了哪种字节顺序？

英文:

I`m trying to get clear with dbf file structure.
I read that

> offset 4 - 7 Number of records

I opened random dbf file with 10148 rows in hex editor and here is offset:

> A4 27 00 00

I try to convert it to dec. Online converter says: 42023
But my hex editor shows 10148

I tried to reverse conversion and online converter said that

> 10148 = 27 A4

Byte order is reversed

I think that there is about Big And little endian byte order.

The question is how to define which order is used in offset?

答案1

得分: 1

dBASE最初是为使用8086系列小端处理器的MS/DOS开发的。据我所知，dbf文件中的任何（数字）字段，包括偏移量，都一致使用小端字节顺序。但我必须承认我没有找到任何关于这方面的参考资料...

英文:

dBASE was originaly produced for MS/DOS using the 8086 serie little endian processor. AFAIK, the byte order is consistently little endian in any (numeric) field of a dbf file including offsets.. But I must admit I could not find any reference for that...