TMS320F280039: About the cast

Hi team,

If you cast the following variable and assign it to another variable, what will be put in the assigned variable?

unsigned char 　A；

unsigned short　B；

B＝０ｘ１２３４；

A＝（unsigned char ）B；

A＝？

In my environment, 0x1234 is entered. Does casting not delete the upper 1 byte? Do you need mask processing (& 0xFF)?

Are there any precautions when casting?

Best regards,

sai