diff --git a/include/aeb_opcodes.hrl b/include/aeb_opcodes.hrl
index 7f8fe75..31fff90 100644
--- a/include/aeb_opcodes.hrl
+++ b/include/aeb_opcodes.hrl
@@ -186,13 +186,14 @@
 -define(PRIM_CALL_MAP_TOLIST, 305).
 
 -define(PRIM_CALL_IN_CRYPTO_RANGE(__TTYPE__), (((__TTYPE__) > 399) andalso ((__TTYPE__) < 500))).
--define(PRIM_CALL_CRYPTO_ECVERIFY,           400).
--define(PRIM_CALL_CRYPTO_SHA3,               401).
--define(PRIM_CALL_CRYPTO_SHA256,             402).
--define(PRIM_CALL_CRYPTO_BLAKE2B,            403).
--define(PRIM_CALL_CRYPTO_SHA256_STRING,      404).
--define(PRIM_CALL_CRYPTO_BLAKE2B_STRING,     405).
--define(PRIM_CALL_CRYPTO_ECVERIFY_SECP256K1, 410).
+-define(PRIM_CALL_CRYPTO_ECVERIFY,            400).
+-define(PRIM_CALL_CRYPTO_SHA3,                401).
+-define(PRIM_CALL_CRYPTO_SHA256,              402).
+-define(PRIM_CALL_CRYPTO_BLAKE2B,             403).
+-define(PRIM_CALL_CRYPTO_SHA256_STRING,       404).
+-define(PRIM_CALL_CRYPTO_BLAKE2B_STRING,      405).
+-define(PRIM_CALL_CRYPTO_ECVERIFY_SECP256K1,  410).
+-define(PRIM_CALL_CRYPTO_ECRECOVER_SECP256K1, 420).
 
 -define(PRIM_CALL_IN_AUTH_RANGE(__TTYPE__), (((__TTYPE__) > 499) andalso ((__TTYPE__) < 600))).
 -define(PRIM_CALL_AUTH_TX_HASH, 500).
diff --git a/src/aeb_fate_generate_ops.erl b/src/aeb_fate_generate_ops.erl
index 55396d4..3396abe 100644
--- a/src/aeb_fate_generate_ops.erl
+++ b/src/aeb_fate_generate_ops.erl
@@ -4,7 +4,7 @@
         , generate/0
         , generate_documentation/1
         , get_ops/0
-        , test_asm_generator/1]).
+        , test_asm_generator/1 ]).
 
 gen_and_halt([SrcDirArg, IncludeDirArg]) ->
     generate(atom_to_list(SrcDirArg),
@@ -163,7 +163,6 @@ ops_defs() ->
 
     , { 'ECVERIFY',            16#72,  false,    true,   true,  1300, [a,a,a,a],           ecverify, {bytes, address, bytes}, boolean, "Arg0 := ecverify(Hash, PubKey, Signature)"}
     , { 'ECVERIFY_SECP256K1',  16#73,  false,    true,   true,  1300, [a,a,a,a], ecverify_secp256k1,   {bytes, bytes, bytes}, boolean, "Arg0 := ecverify_secp256k1(Hash, PubKey, Signature)"}
-
     , { 'CONTRACT_TO_ADDRESS', 16#74,  false,    true,   true,  3, [a,a], contract_to_address,                        {contract}, address, "Arg0 := Arg1 - A no-op type conversion"}
     , { 'AUTH_TX_HASH',        16#75,  false,    true,   true,  3, [a],          auth_tx_hash,                                {}, variant, "If in GA authentication context return Some(TxHash) otherwise None."}
 
@@ -176,6 +175,7 @@ ops_defs() ->
     , { 'IS_ORACLE',           16#7a,  false,   false,   true,  3, [a,a],         is_oracle,                           {address},    bool, "Arg0 := is Arg1 an oracle"}
     , { 'IS_CONTRACT',         16#7b,  false,   false,   true,  3, [a,a],       is_contract,                           {address},    bool, "Arg0 := is Arg1 a contract"}
     , { 'CREATOR',             16#7c,  false,    true,   true,  3, [a],    contract_creator,                                  {}, address, "Arg0 := contract creator"}
+    , { 'ECRECOVER_SECP256K1', 16#7d,  false,    true,   true,  1300,   [a,a,a], ecrecover_secp256k1,             {bytes, bytes},   bytes, "Arg0 := ecrecover_secp256k1(Hash, Signature)"}
 
     , { 'DEACTIVATE',          16#fa,  false,    true,   true,  3, [],           deactivate,                                  {},    none, "Mark the current contract for deactivation."}
     , { 'ABORT',               16#fb,   true,    true,   true,  3, [a],               abort,                            {string},    none, "Abort execution (dont use all gas) with error message in Arg0."}
@@ -752,4 +752,3 @@ format_arg_doc({is,_N}) -> "Identifier";
 format_arg_doc({ii,_N}) -> "Integer";
 format_arg_doc({li,_N}) -> "[Integers]";
 format_arg_doc({t,_N}) -> "Type".
-
diff --git a/test/asm_code/all_instructions.fate b/test/asm_code/all_instructions.fate
index 0516967..807cba1 100644
--- a/test/asm_code/all_instructions.fate
+++ b/test/asm_code/all_instructions.fate
@@ -1,7 +1,7 @@
 ;; CONTRACT all_instructions
 
 ;; Dont expect this contract to typecheck or run.
-;; Just used to check assembler rountrip of all instructions.
+;; Just used to check assembler roundtrip of all instructions.
 
 FUNCTION foo () : {tuple, []}
   RETURN
@@ -224,8 +224,12 @@ FUNCTION foo () : {tuple, []}
 
   AENS_REVOKE
 
+  ECRECOVER_SECP256K1
+
   ECVERIFY
 
+  ECVERIFY_SECP256K1
+
   SHA3 a
 
   SHA256 a