Question about Euro sign (\u20AC)

[Venkateswaran I. <vi...@ac...>]

Hi

I had a question about the mapping file ibm-1370.ucm (ICU 1.8.1/ICU 2.1). It
defines 2 rules for the Euro sign (\u20AC).

<U20AC> \x80 | 0
<U20AC> \xA3\xE1 | 3

For codepage windows-950 the codepoint 0x80 is not defined
http://www.microsoft.com/globaldev/reference/dbcs/950.htm. So a conversion
from Unicode to codepage 950 (Traditional Chinese Big5) using this converter
for \u20AC returns 0x80. 

Any reason why the mapping is not the other way round ?

<U20AC> \x80 | 3
<U20AC> \xA3\E1 | 0

Any help appreciated.

Thanks
Venkat