Pin I/O using variables with CCS C

[dundara]

As I know, CCS functions as Input(PIN) requires PIN to be constant. I need a function uses variable. I have tried to write 2 functions for this, but they are not working.

void SetBit(char a)
{
#asm
MOVLW a
MOVWF FSR
BSF INDF,2
#endasm
}

void ClrBit(char a)
{
#asm
MOVLW a
MOVWF FSR
BCF INDF,2
#endasm
}

I expected that the SetBit function to set pin 2 of portA when the variable a is 5. The other one clears the same pin. I also want to use variable for pins as in the code below.

void SetBit(char a, char b)
{
#asm
MOVLW a
MOVWF FSR
BSF INDF,b
#endasm
}

I need these functions because, I am using several sensors at different pins. If I use the same library, I have to use the same library several times with different pin definitions. This would lead unnecesary code size increase and there will be no space for other things. I am using a 16F877.

Any help will be appreciated.

[PCM programmer]

Here are functions to do pin i/o with the pin number passed as
a variable:

For 16F:
http://www.ccsinfo.com/forum/viewtopic.php?t=25280&start=4

For 18F:
http://www.ccsinfo.com/forum/viewtopic.php?t=27723&start=3

[dundara]

I was wondering about timing since the switch method did not worked on my project because of increased proc. times. But your function has solved my problem at 20Mhz.

I thank you, PCM programmer.