bit shifting with avr-gcc

[arnab.bhaumik]

avr bit shift

hi all,

in a typical application i want to declair an unsigned char and then put a value in it.



say


unsigned char p;

now

p= 0x20;

now i want to bit shift operation on it(may be left or may be right). but with every bit shift operation i want to move the msb to a port pin say pd7,


how come i do that??????



in sdcc with at89c52 what i will do

unsigned char at (0x21) rotor;

bit at(0x21) rotor_msb;

then i will right shift it and access the wanted bit with rotor_msb, but wondering how to do it with atmega8 and avr-gcc.

hope i made my prob clear enaugh............

please reply,

arnab/vu2bpw