.equ __P24FJ64GA002,1        ;required "boiler-plate" (BP)
        .include "p24Fxxxx.inc"      ;BP

#include "xc.inc"                    ;BP
        ;the next two lines set up the actual chip for operation - required
        config __CONFIG2, POSCMOD_EC & I2C1SEL_SEC & IOL1WAY_OFF & OSCIOFNC_ON & FCKSM_CSECME & FNOSC_FRC & SOSCSEL_LPSOSC & WUTSEL_FST & IESO_OFF
        config __CONFIG1, WDTPS_PS1 & FWPSA_PR32 & WINDIS_OFF & FWDTEN_OFF & COE_ON & BKBUG_ON & GWRP_ON & GCP_ON & JTAGEN_OFF

    .align   2                  ;need this so that we have the next word at even address

;;stack:
;;    .space  32                  ;this will be our stack area, from var_16_bit to here
    .text                       ;BP (put the following data in ROM(program memory))
    .global _main               ;BP
;because we are using the C compiler to assemble our code, we need a "_main" label
;somewhere. (There's a link step that looks for it.)
_main:
    bclr    CLKDIV,#8                 ;BP
;;    mov     #stack,w15                ;initialize the stack pointer
    ; set up PORTB bit 0 for output.
    mov     #0,w0
    mov     w0,TRISB                  ;make PORTB output
    mov     #0x9fff,w0
    mov     w0,AD1PCFG                ;PORTB will be digital, not analog!

    mov     #5,w3
loop1:
    btg     PORTB, #0
    dec     WREG3
    bra     nz, loop1

    mov     #3, w3
loop2:
    btg     PORTB, #0
    dec     WREG3
    bra     z, endLoop2
    bra     loop2
endLoop2:

    mov     #3, w0
    clr     PORTB
loop3:
    inc     PORTB
    cp      PORTB
    bra     nz, loop3
endLoop3
    repeat  #3
    inc     PORTB



lpbk:
    bra     lpbk
    .end