From 004b4e49205a37f7e07ea1a21bb61d79f6d09b18 Mon Sep 17 00:00:00 2001
From: "zilong.dai" <2840478265@qq.com>
Date: Tue, 15 Oct 2024 18:30:04 +0800
Subject: [PATCH] rm OP_CHECKGROTH16VERIFY mode 0

---
 src/script/interpreter.cpp | 10 ++--------
 src/script/script.cpp      |  2 +-
 2 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/src/script/interpreter.cpp b/src/script/interpreter.cpp
index 67c99c71ff6..c3fa9013253 100644
--- a/src/script/interpreter.cpp
+++ b/src/script/interpreter.cpp
@@ -1043,8 +1043,8 @@ bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, un
                         return set_error(serror, SCRIPT_ERR_INVALID_STACK_OPERATION);
                     }
 
-                    // Only modes 0 and 1 are implemented; others return an error
-                    if(mode.getint() != 1 && mode.getint() != 0){
+                    // Only modes 1 is implemented; Mode 0 is deprecated; others return an error
+                    if(mode.getint() != 1){
                         // TODO: Implement mode 2 and 3
                         return set_error(serror, SCRIPT_ERR_SIG_DER);
                     }
@@ -1056,12 +1056,6 @@ bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, un
                     valtype& verfierDataB = stacktop(-6);
                     valtype& verfierDataA = stacktop(-7);
 
-                    /* TODO: drop the proof?
-                    // Drop the signature in pre-segwit scripts but not segwit scripts
-                    if (sigversion == SIGVERSION_BASE) {
-                        scriptCode.FindAndDelete(CScript(vchSig));
-                    }
-                    */
                     valtype publicInput1(32); // Initialize a 32-byte array for tx_hash
                     if(mode.getint()==1){
                         CScript scriptCode(pbegincodehash, pend);
diff --git a/src/script/script.cpp b/src/script/script.cpp
index 817b46fda9f..ff43a686fd1 100644
--- a/src/script/script.cpp
+++ b/src/script/script.cpp
@@ -133,7 +133,7 @@ const char* GetOpName(opcodetype opcode)
     case OP_NOP1                   : return "OP_NOP1";
     case OP_CHECKLOCKTIMEVERIFY    : return "OP_CHECKLOCKTIMEVERIFY";
     case OP_CHECKSEQUENCEVERIFY    : return "OP_CHECKSEQUENCEVERIFY";
-    case OP_CHECKGROTH16VERIFY                   : return "OP_CHECKGROTH16VERIFY";
+    case OP_CHECKGROTH16VERIFY     : return "OP_CHECKGROTH16VERIFY";
     case OP_NOP5                   : return "OP_NOP5";
     case OP_NOP6                   : return "OP_NOP6";
     case OP_NOP7                   : return "OP_NOP7";