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fasm_with_tsoding/server.asm

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+format ELF64 executable
+
+STDOUT = 1
+HAPPY_EXIT_CODE = 0
+SYSCALL_EXIT = 60
+SYSCALL_WRITE = 1
+SYSCALL_SOCKET = 41
+AF_INET = 2
+SOCK_STREAM = 1
+
+macro print buf, len
+{
+    mov rax, SYSCALL_WRITE ; 1 -> write, which takes three arguments (below)
+    mov rdi, STDOUT
+    mov rsi, buf
+    mov rdx, len
+    syscall
+}
+
+macro exit code 
+{
+    mov rax, SYSCALL_EXIT 
+    mov rdi, code 
+    syscall
+}
+
+macro socket domain, type, protocol
+{
+    mov rax, SYSCALL_SOCKET
+    mov rdi, domain
+    mov rsi, type
+    mov rdx, protocol
+    syscall
+}
+
+segment readable executable
+entry main
+main:
+    print msg, msg_len
+    socket AF_INET, SOCK_STREAM, 0
+    mov dword [socket_fd], eax
+    print [socket_fd], 32
+    exit HAPPY_EXIT_CODE
+
+
+segment readable writeable
+msg db "Starting web server!", 10
+msg_len db $ - msg
+socket_fd dd 0