Data commit

Task/Machine-code/Swift/machine-code.swift

@@ -0,0 +1,34 @@
+import Foundation
+
+typealias TwoIntsOneInt = @convention(c) (Int, Int) -> Int
+
+let code = [
+  144, // Align
+  144,
+  106, 12, // Prepare stack
+  184, 7, 0, 0, 0,
+  72, 193, 224, 32,
+  80,
+  139, 68, 36, 4, 3, 68, 36, 8, // Rosetta task code
+  76, 137, 227, // Get result
+  137, 195,
+  72, 193, 227, 4,
+  128, 203, 2,
+  72, 131, 196, 16, // Clean up stack
+  195, // Return
+] as [UInt8]
+
+func fudge(x: Int, y: Int) -> Int {
+  let buf = mmap(nil, code.count, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, -1, 0)
+
+  memcpy(buf, code, code.count)
+
+  let fun = unsafeBitCast(buf, to: TwoIntsOneInt.self)
+  let ret = fun(x, y)
+
+  munmap(buf, code.count)
+
+  return ret
+}
+
+print(fudge(x: 7, y: 12))