dspic-circularbuffer.c

#BANKX
int buffer[BUFFER_LEN];

// Modulo addressing inicialization
XMODSRT           = buffer;
XMODEND           = buffer + BUFFER_LEN - 1;
MODCONbits.XWM    = MODCON_WREG1;
MODCONbits.XMODEN = MODCON_ENABLED;

#ASM
mov #0,w0      // w0 is the counter: start at 0
mov buffer,w1  // w1 is the pointer: start at buffer[0]
	
do #100,end    // repeat 100 times until "end", included
mov w0,[w1++]  // store w0 at w1, post-increment pointer
end: 
inc w0,w0      // increment counter
#ENDASM