00001
00006
00007 .include "p24Hxxxx.inc" ; Include processor-specific headers
00008
00009 .global _main ; Make _main visible outside
00010 ; this file so C startup code
00011 ; can call it
00012
00013 .section psv psv ; Place following statements in PSV space
00014 HELLO_MSG: .asciz "asm_echo.s ready!\n" ; Define a null-terminated ASCII string
00015
00016
00017 ;..............................................................................
00018 ;Code Section in Program Memory
00019 ;..............................................................................
00020
00021 .text ;Start of Code section
00022
00023 _main: ; _main called after C startup code runs
00024 mov #HELLO_MSG,W0 ; Equivalent to
00025 call _configBasic ; configBasic(HELLO_MSG) in C
00026
00027 while1: ; while (1) {
00028 call _inChar ; W0 = inChar();
00029 inc W0, W0 ; W0 = W0 + 1;
00030 call _outChar ; outChar(W0);
00031 goto while1 ;}
00032
00033 .end ;End of program code in this file
00034
