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-rw-r--r--examples/arm64/exit.hdass14
1 files changed, 14 insertions, 0 deletions
diff --git a/examples/arm64/exit.hdass b/examples/arm64/exit.hdass
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+[entry: main]
+[enable: logical_registers]
+
+// Exits with status 42 on AArch64 Linux. Logical registers map r1 -> x0 and
+// r9 -> x8, so the exit code goes in x0 and the syscall number in x8; `syscall`
+// lowers to `svc #0`.
+const SYS_EXIT = 93
+
+proc main
+{
+ r1 = 42 // x0 = exit code
+ r9 = SYS_EXIT // x8 = syscall number
+ syscall
+}