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Ingy döt Net 2024-10-16 18:07:41 -07:00
parent 81fd053722
commit 52a6ef48dd
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Task/Twos-complement/AArch64-Assembly/twos-complement.aarch64 Normal file
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/* ARM assembly AARCH64 Raspberry PI 3B */
/* program bincompl64.s */
/*******************************************/
/* Constantes file */
/*******************************************/
/* for this file see task include a file in language AArch64 assembly*/
.include "../includeConstantesARM64.inc"
/*********************************/
/* Initialized data */
/*********************************/
.data
szMessDebutPgm: .asciz "Program 64 bits start. \n"
szMessFinOK: .asciz "Program normal end. \n"
szMessError: .asciz "Error detected !!!!. \n"
szMessNumber: .asciz "Start number : "
szMessResUns: .asciz "Result unsigned : "
szMessResS: .asciz "Result signed : "
szMessResMvn: .asciz "Result with mvn instruction : "
szCarriageReturn: .asciz "\n"
/*********************************/
/* UnInitialized data */
/*********************************/
.bss
.align 4
sZoneConv: .skip 24
/*********************************/
/* code section */
/*********************************/
.text
.global main
main:
ldr x0,qAdrszMessDebutPgm
bl affichageMess // start message
mov x4,12345 // number
mov x0,x4
ldr x1,qAdrsZoneConv
bl conversion10 // decimal conversion
mov x0,3
ldr x1,qAdrszMessNumber
ldr x2,qAdrsZoneConv
ldr x3,qAdrszCarriageReturn
bl displayStrings
mov x0,x4
neg x0,x0
ldr x1,qAdrsZoneConv
bl conversion10 // decimal conversion unsigned
mov x0,3
ldr x1,qAdrszMessResUns
ldr x2,qAdrsZoneConv
ldr x3,qAdrszCarriageReturn
bl displayStrings
mov x0,x4
neg x0,x0
ldr x1,qAdrsZoneConv
bl conversion10S // decimal conversion signed
mov x0,3
ldr x1,qAdrszMessResS
ldr x2,qAdrsZoneConv
ldr x3,qAdrszCarriageReturn
bl displayStrings
mov x0,x4
mvn x0,x0 // use mvn instruction
ldr x1,qAdrsZoneConv
bl conversion10S // decimal conversion signed
mov x0,3
ldr x1,qAdrszMessResMvn
ldr x2,qAdrsZoneConv
ldr x3,qAdrszCarriageReturn
bl displayStrings
ldr x0,qAdrszMessFinOK
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
qAdrszMessDebutPgm: .quad szMessDebutPgm
qAdrszMessFinOK: .quad szMessFinOK
qAdrszMessError: .quad szMessError
qAdrszCarriageReturn: .quad szCarriageReturn
qAdrsZoneConv: .quad sZoneConv
qAdrszMessNumber: .quad szMessNumber
qAdrszMessResUns: .quad szMessResUns
qAdrszMessResS: .quad szMessResS
qAdrszMessResMvn: .quad szMessResMvn
/***************************************************/
/* 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 string6 */
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
/********************************************************/
/* File Include fonctions */
/********************************************************/
/* for this file see task include a file in language AArch64 assembly */
.include "../includeARM64.inc"