165 lines
6.5 KiB
Plaintext
165 lines
6.5 KiB
Plaintext
/* ARM assembly AARCH64 Raspberry PI 3B */
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/* program integerSort64.s with selection sort */
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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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/*********************************/
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/* Initialized data */
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/*********************************/
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.data
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szMessSortOk: .asciz "Table sorted.\n"
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szMessSortNok: .asciz "Table not sorted !!!!!.\n"
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sMessResult: .asciz "Value : @ \n"
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szCarriageReturn: .asciz "\n"
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.align 4
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#TableNumber: .quad 1,3,6,2,5,9,10,8,4,7
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TableNumber: .quad 10,9,8,7,6,5,4,3,2,1
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.equ NBELEMENTS, (. - TableNumber) / 8
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/*********************************/
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/* UnInitialized data */
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/*********************************/
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.bss
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sZoneConv: .skip 24
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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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ldr x0,qAdrTableNumber // address number table
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mov x1,0
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mov x2,NBELEMENTS // number of élements
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bl selectionSort
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ldr x0,qAdrTableNumber // address number table
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bl displayTable
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ldr x0,qAdrTableNumber // address number table
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mov x1,NBELEMENTS // number of élements
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bl isSorted // control sort
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cmp x0,1 // sorted ?
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beq 1f
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ldr x0,qAdrszMessSortNok // no !! error sort
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bl affichageMess
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b 100f
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1: // yes
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ldr x0,qAdrszMessSortOk
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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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qAdrsZoneConv: .quad sZoneConv
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qAdrszCarriageReturn: .quad szCarriageReturn
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qAdrsMessResult: .quad sMessResult
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qAdrTableNumber: .quad TableNumber
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qAdrszMessSortOk: .quad szMessSortOk
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qAdrszMessSortNok: .quad szMessSortNok
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/******************************************************************/
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/* control sorted table */
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/******************************************************************/
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/* x0 contains the address of table */
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/* x1 contains the number of elements > 0 */
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/* x0 return 0 if not sorted 1 if sorted */
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isSorted:
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stp x2,lr,[sp,-16]! // save registers
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stp x3,x4,[sp,-16]! // save registers
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mov x2,0
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ldr x4,[x0,x2,lsl 3]
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1:
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add x2,x2,1
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cmp x2,x1
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bge 99f
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ldr x3,[x0,x2, lsl 3]
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cmp x3,x4
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blt 98f
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mov x4,x3
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b 1b
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98:
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mov x0,0 // not sorted
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b 100f
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99:
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mov x0,1 // sorted
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100:
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ldp x3,x4,[sp],16 // restaur 2 registers
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ldp x2,lr,[sp],16 // restaur 2 registers
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ret // return to address lr x30
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/******************************************************************/
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/* selection sort */
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/******************************************************************/
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/* x0 contains the address of table */
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/* x1 contains the first element */
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/* x2 contains the number of element */
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selectionSort:
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stp x1,lr,[sp,-16]! // save registers
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stp x2,x3,[sp,-16]! // save registers
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stp x4,x5,[sp,-16]! // save registers
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stp x6,x7,[sp,-16]! // save registers
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mov x3,x1 // start index i
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sub x7,x2,1 // compute n - 1
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1: // start loop
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mov x4,x3
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add x5,x3,1 // init index 2
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2:
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ldr x1,[x0,x4,lsl 3] // load value A[mini]
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ldr x6,[x0,x5,lsl 3] // load value A[j]
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cmp x6,x1 // compare value
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csel x4,x5,x4,lt // j -> mini
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add x5,x5,1 // increment index j
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cmp x5,x2 // end ?
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blt 2b // no -> loop
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cmp x4,x3 // mini <> j ?
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beq 3f // no
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ldr x1,[x0,x4,lsl 3] // yes swap A[i] A[mini]
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ldr x6,[x0,x3,lsl 3]
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str x1,[x0,x3,lsl 3]
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str x6,[x0,x4,lsl 3]
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3:
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add x3,x3,1 // increment i
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cmp x3,x7 // end ?
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blt 1b // no -> loop
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100:
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ldp x6,x7,[sp],16 // restaur 2 registers
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ldp x4,x5,[sp],16 // restaur 2 registers
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ldp x2,x3,[sp],16 // restaur 2 registers
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ldp x1,lr,[sp],16 // restaur 2 registers
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ret // return to address lr x30
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/******************************************************************/
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/* Display table elements */
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/******************************************************************/
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/* x0 contains the address of table */
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displayTable:
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stp x1,lr,[sp,-16]! // save registers
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stp x2,x3,[sp,-16]! // save registers
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mov x2,x0 // table address
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mov x3,0
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1: // loop display table
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ldr x0,[x2,x3,lsl 3]
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ldr x1,qAdrsZoneConv
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bl conversion10 // décimal conversion
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ldr x0,qAdrsMessResult
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ldr x1,qAdrsZoneConv
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bl strInsertAtCharInc // insert result at @ character
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bl affichageMess // display message
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add x3,x3,1
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cmp x3,NBELEMENTS - 1
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ble 1b
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ldr x0,qAdrszCarriageReturn
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bl affichageMess
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100:
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ldp x2,x3,[sp],16 // restaur 2 registers
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ldp x1,lr,[sp],16 // restaur 2 registers
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ret // return to address lr x30
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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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