more code

assemblytutorial.txt

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+https://www.youtube.com/watch?v=6S5KRJv-7RU
+
+rdi
+rsi
+r8
+r - 64 bit pointer
+
+mov rdi,8
+mov rdi,rsi
+
+memory operations
+
+mov rdi, qword ptr[rsi]  values from memory into register
+mov qword ptr[rsi], rdi  store into memory operation
+
+https://blog.rchapman.org/posts/Linux_System_Call_Table_for_x86_64/
+
+
+Compilation:
+    as -c assemblyexample1.asm -o assemblyexample1.o
+    gcc assemblyexample1.o -o assemblyexample1 -nostdlib -static
+
+Check error code:
+    echo $?