// Copyright 2024 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.

package vm

// opRjump implements the RJUMP opcode.
func opRjump(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}

// opRjumpi implements the RJUMPI opcode
func opRjumpi(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}

// opRjumpv implements the RJUMPV opcode
func opRjumpv(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}

// opCallf implements the CALLF opcode
func opCallf(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}

// opRetf implements the RETF opcode
func opRetf(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}

// opJumpf implements the JUMPF opcode
func opJumpf(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}

// opEOFCreate implements the EOFCREATE opcode
func opEOFCreate(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}

// opReturnContract implements the RETURNCONTRACT opcode
func opReturnContract(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}

// opDataLoad implements the DATALOAD opcode
func opDataLoad(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}

// opDataLoadN implements the DATALOADN opcode
func opDataLoadN(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}

// opDataSize implements the DATASIZE opcode
func opDataSize(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}

// opDataCopy implements the DATACOPY opcode
func opDataCopy(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}

// opDupN implements the DUPN opcode
func opDupN(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	var (
		code  = scope.Contract.CodeAt(scope.CodeSection)
		index = int(code[*pc+1]) + 1
	)
	scope.Stack.dup(index)
	*pc += 1 // move past immediate
	return nil, nil
}

// opSwapN implements the SWAPN opcode
func opSwapN(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	var (
		code  = scope.Contract.CodeAt(scope.CodeSection)
		index = int(code[*pc+1]) + 1
	)
	scope.Stack.swap(index + 1)
	*pc += 1 // move past immediate
	return nil, nil
}

// opExchange implements the EXCHANGE opcode
func opExchange(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	var (
		code  = scope.Contract.CodeAt(scope.CodeSection)
		index = int(code[*pc+1])
		n     = (index >> 4) + 1
		m     = (index & 0x0F) + 1
	)
	scope.Stack.swapN(n+1, n+m+1)
	*pc += 1 // move past immediate
	return nil, nil
}

// opReturnDataLoad implements the RETURNDATALOAD opcode
func opReturnDataLoad(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}

// opExtCall implements the EOFCREATE opcode
func opExtCall(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}

// opExtDelegateCall implements the EXTDELEGATECALL opcode
func opExtDelegateCall(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}

// opExtStaticCall implements the EXTSTATICCALL opcode
func opExtStaticCall(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
	panic("not implemented")
}