63 lines
2.2 KiB
Plaintext
63 lines
2.2 KiB
Plaintext
/* ARM assembly AARCH64 Raspberry PI 3B */
|
|
/* program copystr64.s */
|
|
|
|
/*******************************************/
|
|
/* Constantes file */
|
|
/*******************************************/
|
|
/* for this file see task include a file in language AArch64 assembly*/
|
|
.include "../includeConstantesARM64.inc"
|
|
/*******************************************/
|
|
/* Initialized data */
|
|
/*******************************************/
|
|
.data
|
|
szString: .asciz "ABCDEFGHIJKLMNOPQRSTUVWXYZ\n"
|
|
/*******************************************/
|
|
/* UnInitialized data */
|
|
/*******************************************/
|
|
.bss
|
|
.align 4
|
|
qPtString: .skip 8
|
|
szString1: .skip 80
|
|
/*******************************************/
|
|
/* code section */
|
|
/*******************************************/
|
|
.text
|
|
.global main
|
|
main: // entry of program
|
|
|
|
// display start string
|
|
ldr x0,qAdrszString
|
|
bl affichageMess
|
|
// copy pointer string
|
|
ldr x0,qAdrszString
|
|
ldr x1,qAdriPtString
|
|
str x0,[x1]
|
|
// control
|
|
ldr x1,qAdriPtString
|
|
ldr x0,[x1]
|
|
bl affichageMess
|
|
// copy string
|
|
ldr x0,qAdrszString
|
|
ldr x1,qAdrszString1
|
|
1:
|
|
ldrb w2,[x0],1 // read one byte and increment pointer one byte
|
|
strb w2,[x1],1 // store one byte and increment pointer one byte
|
|
cmp x2,#0 // end of string ?
|
|
bne 1b // no -> loop
|
|
// control
|
|
ldr x0,qAdrszString1
|
|
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
|
|
qAdrszString: .quad szString
|
|
qAdriPtString: .quad qPtString
|
|
qAdrszString1: .quad szString1
|
|
/********************************************************/
|
|
/* File Include fonctions */
|
|
/********************************************************/
|
|
/* for this file see task include a file in language AArch64 assembly */
|
|
.include "../includeARM64.inc"
|