Zapis/odczyt z pliku

.data

SYSOPEN = 2
SYSCLOSE = 3
SYSREAD = 0
SYSWRITE = 1
READONLY = 0
WRITEONLY = 1
SYSEXIT = 60

EXIT_SUCCESS = 0

file1: .ascii "plik1.txt\0"
file2: .ascii "plik2.txt\0"

.bss
.comm textin1, 1024
.comm textin2, 1024


.text
.global main
main:
# otwarcie pliku
movq $SYSOPEN, %rax
movq $file1, %rdi
movq $READONLY, %rsi
movq $0644, %rdx
syscall

# deskryptor pliku1 w r10
movq %rax, %r10

read:
# wczytanie
movq $SYSREAD, %rax
movq %r10, %rdi
movq $textin1, %rsi
movq $1024, %rdx
syscall

movq %rax, %r11

movq $SYSCLOSE, %rax
movq %r10, %rdi
movq $0, %rsi
movq $0, %rdx

write:
movq $SYSOPEN, %rax
movq $file2, %rdi
movq $WRITEONLY, %rsi
movq $0310157, %rdx
syscall

movq %rax, %r10

movq $SYSWRITE, %rax
movq %r10, %rdi
movq $textin1, %rsi
movq %r11, %rdx
syscall

movq $SYSCLOSE, %rax
movq %r10, %rdi
movq $0, %rsi
movq $0, %rdx


movq $SYSEXIT, %rax
movq $EXIT_SUCCESS, %rdi
syscall