1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
// Copyright 2022 Risc0, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include "risc0/zkvm/circuit/cycle.h"
namespace risc0::circuit {
struct MultiplyCycle {
template <size_t Size>
static std::vector<RegDigits<2, Size>> allocVec(BufAlloc& alloc, size_t count) {
std::vector<RegDigits<2, Size>> out;
for (size_t i = 0; i < count; i++) {
out.emplace_back(alloc);
}
return out;
}
MultiplyCycle(BufAlloc& alloc)
: resultInfo(alloc)
, in0(alloc)
, in1(alloc)
, carry(allocVec<2>(alloc, 8))
, mul(allocVec<24>(alloc, 5))
, in0High(alloc)
, in1High(alloc) {}
void set(StepState& state);
ResultInfoRegs resultInfo;
RegDigits<2, 32> in0;
RegDigits<2, 32> in1;
std::vector<RegDigits<2, 2>> carry;
std::vector<RegDigits<2, 24>> mul;
RegDigits<1, 2> in0High;
RegDigits<1, 2> in1High;
};
} // namespace risc0::circuit