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package vm
import (
"math/big"
"github.com/ethereum/go-ethereum/common/math"
)
func memorySha3(stack *Stack) *big.Int {
return calcMemSize(stack.Back(0), stack.Back(1))
}
func memoryCalldataCopy(stack *Stack) *big.Int {
return calcMemSize(stack.Back(0), stack.Back(2))
}
func memoryCodeCopy(stack *Stack) *big.Int {
return calcMemSize(stack.Back(0), stack.Back(2))
}
func memoryExtCodeCopy(stack *Stack) *big.Int {
return calcMemSize(stack.Back(1), stack.Back(3))
}
func memoryMLoad(stack *Stack) *big.Int {
return calcMemSize(stack.Back(0), big.NewInt(32))
}
func memoryMStore8(stack *Stack) *big.Int {
return calcMemSize(stack.Back(0), big.NewInt(1))
}
func memoryMStore(stack *Stack) *big.Int {
return calcMemSize(stack.Back(0), big.NewInt(32))
}
func memoryCreate(stack *Stack) *big.Int {
return calcMemSize(stack.Back(1), stack.Back(2))
}
func memoryCall(stack *Stack) *big.Int {
x := calcMemSize(stack.Back(5), stack.Back(6))
y := calcMemSize(stack.Back(3), stack.Back(4))
return math.BigMax(x, y)
}
func memoryCallCode(stack *Stack) *big.Int {
x := calcMemSize(stack.Back(5), stack.Back(6))
y := calcMemSize(stack.Back(3), stack.Back(4))
return math.BigMax(x, y)
}
func memoryDelegateCall(stack *Stack) *big.Int {
x := calcMemSize(stack.Back(4), stack.Back(5))
y := calcMemSize(stack.Back(2), stack.Back(3))
return math.BigMax(x, y)
}
func memoryReturn(stack *Stack) *big.Int {
return calcMemSize(stack.Back(0), stack.Back(1))
}
func memoryLog(stack *Stack) *big.Int {
mSize, mStart := stack.Back(1), stack.Back(0)
return calcMemSize(mStart, mSize)
}
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