varible bit handilling

[arun_9998]

can we do like this in keil

unsigned char a;
sbit b=a^0;

 

[#MAAM#]

you can do this but using this formula

unsigned char a;
sbit b=P1^0;

in case of using 8051 micro-controller

 

[andre_luis]

I prefer perform this test by MARCO comand, this way :

#define a_BIT0 ( a & 0x01 )     ; declaration
#define SET_a_BIT0 ( a |= 0x01 )   ; declaration
#define CLR_a_BIT0 ( a &= 0x01 ) ; declaration

if ( a_BIT0 ) { do_somethig }   ; evaluation

This implementation allows further compatibility with other compilers which doesn´t suport C language non-standard sbit comand .





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