/* ARM assembly AARCH64 Raspberry PI 3B */
/*  program lenAreaString64.s   */

/*******************************************/
/* Constantes file                         */
/*******************************************/
/* for this file see task include a file in language AArch64 assembly*/
.include "../includeConstantesARM64.inc"
/*******************************************/
/* Initialized data                        */
/*******************************************/
.data
szMessLenArea:     .asciz "The length of area is :  @ \n"
szCarriageReturn:  .asciz "\n"

/* areas strings  */
szString1:  .asciz "Apples"
szString2:  .asciz "Oranges"
/* pointer items area */
tablesPoi:
ptApples:    .quad szString1
ptOranges:   .quad szString2
ptVoid:      .quad 0
/*******************************************/
/* UnInitialized data                      */
/*******************************************/
.bss
sZoneConv:   .skip 30
/*******************************************/
/*  code section                           */
/*******************************************/
.text
.global main
main:                        // entry of program

    ldr x1,qAdrtablesPoi     // begin pointer table
    mov x0,0                 // counter
1:                           // begin loop
    ldr x2,[x1,x0,lsl 3]     // read string pointer address item x0 (8 bytes by pointer)
    cmp x2,0                 // is null ?
    cinc x0,x0,ne            // no increment counter
    bne 1b                   // and loop

    ldr x1,qAdrsZoneConv     // conversion decimal
    bl conversion10S
    ldr x0,qAdrszMessLenArea
    ldr x1,qAdrsZoneConv
    bl strInsertAtCharInc    // insert result at @ character
    bl affichageMess


100:                         // standard end of the program
    mov x0,0                 // return code
    mov x8,EXIT              // request to exit program
    svc 0                    // perform the system call
qAdrtablesPoi:         .quad tablesPoi
qAdrszMessLenArea:     .quad szMessLenArea
qAdrsZoneConv:         .quad sZoneConv
qAdrszCarriageReturn:  .quad szCarriageReturn
/********************************************************/
/*        File Include fonctions                        */
/********************************************************/
/* for this file see task include a file in language AArch64 assembly */
.include "../includeARM64.inc"