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- .equ __P24FJ64GA002,1 ;required "boiler-plate" (BP)
- .include "p24Fxxxx.inc" ;BP
-
-#include "xc.inc" ;BP
- ; DO NOT include config statements. We define them in the C file
- ;the next two lines set up the actual chip for operation - required
- ;config __CONFIG2, POSCMOD_NONE & I2C1SEL_PRI & IOL1WAY_OFF & OSCIOFNC_ON & FCKSM_CSECME & FNOSC_FRCPLL & SOSCSEL_LPSOSC & WUTSEL_FST & IESO_OFF
- ;config __CONFIG1, FWDTEN_OFF & COE_OFF & BKBUG_OFF & GWRP_OFF & GCP_OFF & JTAGEN_OFF
-
- .bss ;put the following labels in RAM
-_counter: .space 2 ;declare a 16-bit variable
-; you SHOULD NOT define stack, becasue this file is compiled
-; alongside a C file that contains main(). The C compiler
-; will create stack space for us.
-;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 _myAsmFunc
- .global _myGlobalVar
- .global _counter
-
-_myAsmFunc:
- push w0
-
- inc _myGlobalVar
- inc _counter
-
- bra checkLoopEndCond
-loopBody:
- btg LATB, #2 ; btg stands for bit-toggle.
- nop
- dec WREG0
-checkLoopEndCond:
- cp0 w0
- bra nz, loopBody
-
- pop w0
- return
- .end
-