102 lines
3.8 KiB
Plaintext
102 lines
3.8 KiB
Plaintext
/* ARM assembly AARCH64 Raspberry PI 3B */
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/* program concAreaString.s */
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/*******************************************/
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/* Constantes file */
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/*******************************************/
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/* for this file see task include a file in language AArch64 assembly*/
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.include "../includeConstantesARM64.inc"
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.equ NBMAXITEMS, 20 //
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/*******************************************/
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/* Initialized data */
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/*******************************************/
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.data
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szMessLenArea: .asciz "The length of area 3 is : @ \n"
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szCarriageReturn: .asciz "\n"
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/* areas strings */
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szString1: .asciz "Apples"
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szString2: .asciz "Oranges"
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szString3: .asciz "Pommes"
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szString4: .asciz "Raisins"
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szString5: .asciz "Abricots"
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/* pointer items area 1*/
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tablesPoi1:
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pt1_1: .quad szString1
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pt1_2: .quad szString2
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ptVoid_1: .quad 0
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/* pointer items area 2*/
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tablesPoi2:
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pt2_1: .quad szString3
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pt2_2: .quad szString4
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pt2_3: .quad szString5
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ptVoid_2: .quad 0
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/*******************************************/
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/* UnInitialized data */
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/*******************************************/
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.bss
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tablesPoi3: .skip 8 * NBMAXITEMS
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sZoneConv: .skip 30
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/*******************************************/
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/* code section */
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/*******************************************/
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.text
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.global main
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main: // entry of program
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// copy area 1 -> area 3
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ldr x1,qAdrtablesPoi1 // begin pointer area 1
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ldr x3,qAdrtablesPoi3 // begin pointer area 3
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mov x0,0 // counter
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1:
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ldr x2,[x1,x0,lsl 3] // read string pointer address item x0 (8 bytes by pointer)
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cbz x2,2f // is null ?
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str x2,[x3,x0,lsl 3] // no store pointer in area 3
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add x0,x0,1 // increment counter
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b 1b // and loop
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2: // copy area 2 -> area 3
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ldr x1,qAdrtablesPoi2 // begin pointer area 2
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ldr x3,qAdrtablesPoi3 // begin pointer area 3
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mov x4,#0 // counter area 2
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3: // x0 contains the first void item in area 3
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ldr x2,[x1,x4,lsl #3] // read string pointer address item x0 (8 bytes by pointer)
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cbz x2,4f // is null ?
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str x2,[x3,x0,lsl #3] // no store pointer in area 3
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add x0,x0,1 // increment counter
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add x4,x4,1 // increment counter
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b 3b // and loop
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4:
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// count items number in area 3
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ldr x1,qAdrtablesPoi3 // begin pointer table
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mov x0,#0 // counter
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5: // begin loop
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ldr x2,[x1,x0,lsl #3] // read string pointer address item x0 (8 bytes by pointer)
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cmp x2,#0 // is null ?
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cinc x0,x0,ne // no increment counter
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bne 5b // and loop
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ldr x1,qAdrsZoneConv // conversion decimal
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bl conversion10S
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ldr x0,qAdrszMessLenArea
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ldr x1,qAdrsZoneConv
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bl strInsertAtCharInc // insert result at @ character
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bl affichageMess
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100: // standard end of the program
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mov x0,0 // return code
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mov x8,EXIT // request to exit program
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svc 0 // perform the system call
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qAdrtablesPoi1: .quad tablesPoi1
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qAdrtablesPoi2: .quad tablesPoi2
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qAdrtablesPoi3: .quad tablesPoi3
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qAdrszMessLenArea: .quad szMessLenArea
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qAdrsZoneConv: .quad sZoneConv
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qAdrszCarriageReturn: .quad szCarriageReturn
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/****************************************************/
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/* File Include fonctions */
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/********************************************************/
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/* for this file see task include a file in language AArch64 assembly */
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.include "../includeARM64.inc"
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