Add AUTH_TX_HASH operation

src/aeb_fate_generate_ops.erl

@@ -166,6 +166,7 @@ ops_defs() ->
     , { 'ECVERIFY_SECP256K1',  16#73,  false, 1300, [a,a,a,a], ecverify_secp256k1,  {hash, signature, signature}, boolean, "Arg0 := ecverify_secp256k1(Hash, PubKey, Signature)"}
 
     , { 'CONTRACT_TO_ADDRESS', 16#74,  false,   3, [a,a], contract_to_address,                        {contract}, address, "Arg0 := Arg1 - A no-op type conversion"}
+    , { 'AUTH_TX_HASH',        16#75,  false,   3, [a],          auth_tx_hash,                                {}, variant, "If in GA authentication context return Some(TxHash) otherwise None."}
 
     , { 'DEACTIVATE',          16#fa,  false,   3, [],           deactivate,                                  {},    none, "Mark the current contract for deactivation."}
     , { 'ABORT',               16#fb,   true,   3, [a],               abort,                            {string},    none, "Abort execution (dont use all gas) with error message in Arg0."}

test/asm_code/all_instructions.fate

@@ -243,3 +243,7 @@ FUNCTION foo () : {tuple, []}
   BALANCE_OTHER a arg0
 
   SETELEMENT a 2 (1, "two", 3) 2
+
+  AUTH_TX_HASH
+
+  CONTRACT_TO_ADDRESS @ct_nv5B93FPzRHrGNmMdTDfGdd5xGZvep3MVSpJqzcQmMp59bBCv