I agree with You, Erik that too much of blank lines makes it impossible to see through enough code.

But at the same time I feel it is necessary to have blank lines in between codes for clear view to reader.

E.G. considor following conditions in some init_sfr() routine

Condition 1:

void init_sfr(void)
{
 EA = 0;

 //INITIALISING TIMER-0 RELATED SFR
 TMOD = ....;
 TH0 = ....;

 //INITIALISING UART RELATED SFR
 PCON &= 0x7F;
 TH1 = ....;
 SCON = ....;

 //STARTING TIMERS
 TR0 = 1;
 TR1 = 1;

 //INTERUPT ENABLING
 ET0 = 1;
 ES = 1;
 EA = 1;
}


Condition 2:

void init_sfr(void)
{
 EA = 0;
 TMOD = ....;
 TH0 = ....;
 PCON &= 0x7F;
 TH1 = ....;
 SCON = ....;
 TR0 = 1;
 TR1 = 1;
 ET0 = 1;
 ES = 1;
 EA = 1;
}


Condition 3:

void init_sfr(void)
{
 EA = 0;


 //INITIALISING TIMER-0 RELATED SFR

 TMOD = ....;

 TH0 = ....;


 //INITIALISING UART RELATED SFR

 PCON &= 0x7F;

 TH1 = ....;

 SCON = ....;


 //STARTING TIMERS

 TR0 = 1;

 TR1 = 1;


 //INTERUPT ENABLING

 ET0 = 1;

 ES = 1;

 EA = 1;
}

in above example I prefer Condition 1 type of appearance as it visually fragments tasks done by the routine, at the same time enables to view sufficient code.

condition 3 type should be avoided