; CC7A Ver 1.0D, Copyright (c) B Knudsen Data
; C compiler for the PIC18 microcontrollers
; ************  24. Feb 2011  12:28  *************

        processor  17C766
        radix  DEC

WREG        EQU   0x0A
TBLPTR      EQU   0x0D
Carry       EQU   0
ug24        EQU   0x320
table1      EQU   0x23
cgt         EQU   0x29
pro         EQU   0x124
ov0         EQU   0
ov1         EQU   0x22
ov2         EQU   0x22
ov3         EQU   7
uu16        EQU   0x321
uu24        EQU   0x26
table2      EQU   0x23
i           EQU   0x120
ci          EQU   0x121

        GOTO main

  ; FILE 17\demo-var.c
                        ;// DEFINING RAM VARIABLES
                        ;
                        ;#pragma chip PIC17C766 // select device
                        ;
                        ;
                        ;bit bt;              // a bit variable
                        ;char ga, c8;         // two 8 bit unsigned char variables
                        ;
                        ;bank1 char a;        // stating the RAM bank directly
                        ;
                        ;bank3 uns24 ug24;    // 24 bit unsigned integer in bank 3
                        ;
                        ;uns16 table1[3];     // a table with 3 elements of 16 bit
                        ;
                        ;
                        ;struct {             // a structure of 2 char variables
                        ;  char b;
                        ;  char c;
                        ;} cgt;
                        ;
                        ;
                        ;typedef struct {     // a typedef
                        ;  int tab[2];
                        ;  struct {
                        ;    uns8 l1;
                        ;    uns8 l2;
                        ;  } vx;
                        ;} Txx;
                        ;
                        ;bank2 Txx ax, bx[2];   // using the defined type
                        ;
                        ;
                        ;#pragma rambank 3     // defining the RAM bank for following definitions
                        ;char m1;
                        ;bank0 char uu1;
                        ;int24 m2;
                        ;
                        ;#pragma rambank -     // unbanked RAM
                        ;char yy;
                        ;
                        ;#pragma rambank 1
                        ;char pp;
                        ;shrBank int16 ir;     // unbanked RAM
                        ;
                        ;
                        ;const char *pro[3];  // a table in RAM of pointers to 'const' data
                        ;
                        ;
                        ;// OVERLAY DEFINITIONS
                        ;// variables overlaying another variable or table
                        ;bit  ov0 @ bt;  // full overlay
                        ;char ov1 @ c8;  // full overlay
                        ;
                        ;int8 ov2 @ c8;  // full overlay, different type
                        ;
                        ;bit  ov3 @ ug24.23;           // partial overlay
                        ;uns16 uu16 @ ug24.high16;     // partial overlay
                        ;uns24 uu24 @ table1[1].high8; // partial overlay
                        ;char table2[5] @ table1[0];   // partial overlay
                        ;
                        ;
                        ;
                        ;void main(void)
                        ;{
main
                        ;    cgt.c = 0;
        MOVLR 0
        CLRF  cgt+1,1
                        ;
                        ;    ov0 = 0;
        BCF   0x20,ov0
                        ;    ov1 = 0;
        CLRF  ov1,1
                        ;    ov2 = 0;
        CLRF  ov2,1
                        ;    ov3 = 0;
        MOVLR 3
        BCF   0x322,ov3
                        ;
                        ;    ug24 = 0;
        CLRF  ug24,1
        CLRF  ug24+1,1
        CLRF  ug24+2,1
                        ;    uu16 = 0;
        CLRF  uu16,1
        CLRF  uu16+1,1
                        ;
                        ;    uu24 = 0;
        MOVLR 0
        CLRF  uu24,1
        CLRF  uu24+1,1
        CLRF  uu24+2,1
                        ;    table1[2] = 0;
        CLRF  table1+4,1
        CLRF  table1+5,1
                        ;    table1[0] = 0;
        CLRF  table1,1
        CLRF  table1+1,1
                        ;    table2[0] = 0;
        CLRF  table2,1
                        ;
                        ;    pro[0] = "Hello";
        MOVLR 1
        CLRF  pro,1
                        ;    pro[1] = "News";
        MOVLW 6
        MOVWF pro+1
                        ;
                        ;    char i = *pro[0];
        MOVFP pro,WREG
        CALL  _const1
        MOVWF i
                        ;}
        SLEEP
        GOTO main
_const1
        MOVWF ci
        MOVLW 0
        MOVWF TBLPTR+1
        RRCF  ci,W
        ANDLW 127
        ADDLW 45
        MOVWF TBLPTR
        BTFSC 0x04,Carry
        INCF  TBLPTR+1,1
        TABLRD 0,0,WREG
        TLRD  0,WREG
        BTFSC ci,0
        TLRD  1,WREG
        RETURN
        DW    0x6548
        DW    0x6C6C
        DW    0x6F
        DW    0x654E
        DW    0x7377
        DW    0x0

        END


; *** KEY INFO ***

; 0x0001 P0   30 word(s)  0 % : main
; 0x001F P0   20 word(s)  0 % : _const1

; RAM usage: 41 bytes (2 local), 861 bytes free
; Maximum call level: 1
;  Codepage 0 has   51 word(s) :   0 %
;  Codepage 1 has    0 word(s) :   0 %
; Total of 51 code words (0 %)