Find square difference: Difference between revisions
add task to aarch64 assembly raspberry pi
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=={{header|AArch64 Assembly}}==
{{works with|as|Raspberry Pi 3B version Buster 64 bits <br> or android 64 bits with application Termux }}
<syntaxhighlight lang AArch64 Assembly>
/* ARM assembly AARCH64 Raspberry PI 3B */
/* program diffsquare64.s */
/************************************/
/* Constantes */
/************************************/
/* for this file see task include a file in language AArch64 assembly*/
.include "../includeConstantesARM64.inc"
.equ MAXI, 10000
/*********************************/
/* Initialized data */
/*********************************/
.data
szMessNotFind: .asciz "No soluce !! "
szMessResult: .asciz "Nombre = "
szMessStart: .asciz "Program 64 bits start.\n"
szCarriageReturn: .asciz "\n"
/*********************************/
/* UnInitialized data */
/*********************************/
.bss
sZoneConv: .skip 24
/*********************************/
/* code section */
/*********************************/
.text
.global main
main: // entry of program
ldr x0,qAdrszMessStart
bl affichageMess
mov x5,#2 // init start number
ldr x3,iMAXI
1: // begin loop
mul x2,x5,x5 // n * n
sub x4,x5,#1 // n - 1
mul x6,x4,x4 // (n - 1) * (n - 1)
sub x0,x2,x6 // difference
cmp x0,#1000 // > 1000
bgt 2f
add x5,x5,#1 // increment number
cmp x5,x3 // maxi limit ?
blt 1b
ldr x0,qAdrszMessNotFind // display not find
bl affichageMess
b 100f
2: // display result
mov x0,x5
ldr x1,qAdrsZoneConv
bl conversion10 // decimal conversion
mov x0,#3 // number string to display
ldr x1,qAdrszMessResult
ldr x2,qAdrsZoneConv // insert conversion in message
ldr x3,qAdrszCarriageReturn
bl displayStrings // display message
100: // standard end of the program
mov x0, #0 // return code
mov x8,EXIT
svc #0 // perform the system call
qAdrszCarriageReturn: .quad szCarriageReturn
qAdrsZoneConv: .quad sZoneConv
qAdrszMessResult: .quad szMessResult
qAdrszMessNotFind: .quad szMessNotFind
qAdrszMessStart: .quad szMessStart
iMAXI: .quad MAXI
/***************************************************/
/* display multi strings */
/* new version 24/05/2023 */
/***************************************************/
/* x0 contains number strings address */
/* x1 address string1 */
/* x2 address string2 */
/* x3 address string3 */
/* x4 address string4 */
/* x5 address string5 */
/* x6 address string5 */
displayStrings: // INFO: displayStrings
stp x7,lr,[sp,-16]! // save registers
stp x2,fp,[sp,-16]! // save registers
add fp,sp,#32 // save paraméters address (4 registers saved * 8 bytes)
mov x7,x0 // save strings number
cmp x7,#0 // 0 string -> end
ble 100f
mov x0,x1 // string 1
bl affichageMess
cmp x7,#1 // number > 1
ble 100f
mov x0,x2
bl affichageMess
cmp x7,#2
ble 100f
mov x0,x3
bl affichageMess
cmp x7,#3
ble 100f
mov x0,x4
bl affichageMess
cmp x7,#4
ble 100f
mov x0,x5
bl affichageMess
cmp x7,#5
ble 100f
mov x0,x6
bl affichageMess
100:
ldp x2,fp,[sp],16 // restaur registers
ldp x7,lr,[sp],16 // restaur registers
ret
/***************************************************/
/* ROUTINES INCLUDE */
/***************************************************/
/* for this file see task include a file in language AArch64 assembly*/
.include "../includeARM64.inc"
</syntaxhighlight>
{{Out}}
<pre>
Program 64 bits start.
Nombre = 501
</pre>
=={{header|Ada}}==
<syntaxhighlight lang="ada">with Ada.Text_IO; use Ada.Text_IO;
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