cicnet/erc20-demurrage-token
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Save highest two bits in redistribuction work for remainder handling

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nolash
2021-02-05 08:45:44 +01:00
parent ed9d9b3833
commit d795a77deb
2 changed files with 14 additions and 3 deletions
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7
solidity/RedistributedDemurrageToken.sol
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@@ -2,6 +2,7 @@ pragma solidity > 0.6.11;
// SPDX-License-Identifier: GPL-3.0-or-later
// TODO: assign bitmask values to contants
contract RedistributedDemurrageToken {
address public owner;
@@ -15,7 +16,7 @@ contract RedistributedDemurrageToken {
uint256 public taxLevel; // PPM
uint256 public demurrageModifier; // PPM
bytes32[] public redistributions; // uint40(participants) | uint160(value) | uint56(period)
bytes32[] public redistributions; // uint1(usedDustSink) | uint1(isFractional) | uint38(participants) | uint160(value) | uint56(period)
mapping (address => bytes32) account; // uint12(period) | uint160(value)
mapping (address => bool) minter;
@@ -121,7 +122,7 @@ contract RedistributedDemurrageToken {
// Serializes the number of participants part of the redistribution word
function toRedistributionParticipants(bytes32 redistribution) public pure returns (uint256) {
return uint256(redistribution & 0xffffffffff000000000000000000000000000000000000000000000000000000) >> 216;
return uint256(redistribution & 0x3fffffffff000000000000000000000000000000000000000000000000000000) >> 216;
}
// Client accessor to the redistributions array length
@@ -148,7 +149,7 @@ contract RedistributedDemurrageToken {
uint256 currentRedistribution;
currentRedistribution = uint256(redistributions[redistributions.length-1]);
currentRedistribution &= 0xffffffffff0000000000000000000000000000000000000000ffffffffffffff;
currentRedistribution &= 0x3fffffffff0000000000000000000000000000000000000000ffffffffffffff;
currentRedistribution |= totalSupply << 56;
redistributions[redistributions.length-1] = bytes32(currentRedistribution);