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+# Syscall numbers (x86_64)
+
+.equ SYS_EXIT, 60
+.equ SYS_READ, 0
+.equ SYS_WRITE, 1
+.equ SYS_OPEN, 2
+.equ SYS_CLOSE, 3
+.equ SYS_BRK, 12
+
+# Default File Descriptors
+.equ STDIN, 0
+.equ STDOUT, 1
+.equ STDERR, 2
+
+# Common Status Codes
+.equ END_OF_FILE, 0