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linear growth #377
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,48 +1,53 @@ | ||
| // SPDX-License-Identifier: CAL | ||
| pragma solidity ^0.8.18; | ||
|
|
||
| // import {UD60x18, mul, add} from "prb-math/UD60x18.sol"; | ||
| // import {OperandV2} from "rain.interpreter.interface/interface/unstable/IInterpreterV4.sol"; | ||
| // import {Pointer} from "rain.solmem/lib/LibPointer.sol"; | ||
| // import {InterpreterState} from "../../../state/LibInterpreterState.sol"; | ||
| // import {IntegrityCheckState} from "../../../integrity/LibIntegrityCheck.sol"; | ||
| import {OperandV2} from "rain.interpreter.interface/interface/unstable/IInterpreterV4.sol"; | ||
| import {Pointer} from "rain.solmem/lib/LibPointer.sol"; | ||
| import {InterpreterState} from "../../../state/LibInterpreterState.sol"; | ||
| import {IntegrityCheckState} from "../../../integrity/LibIntegrityCheck.sol"; | ||
| import {Float, LibDecimalFloat} from "rain.math.float/lib/LibDecimalFloat.sol"; | ||
| import {StackItem} from "rain.interpreter.interface/interface/unstable/IInterpreterV4.sol"; | ||
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| // /// @title LibOpLinearGrowth | ||
| // /// @notice Linear growth is base + rate * t where a is the initial value, r is | ||
| // /// the growth rate, and t is time. | ||
| // library LibOpLinearGrowth { | ||
| // function integrity(IntegrityCheckState memory, Operand) internal pure returns (uint256, uint256) { | ||
| // // There must be three inputs and one output. | ||
| // return (3, 1); | ||
| // } | ||
| /// @title LibOpLinearGrowth | ||
| /// @notice Linear growth is base + rate * t where a is the initial value, r is | ||
| /// the growth rate, and t is time. | ||
| library LibOpLinearGrowth { | ||
| function integrity(IntegrityCheckState memory, OperandV2) internal pure returns (uint256, uint256) { | ||
| // There must be three inputs and one output. | ||
| return (3, 1); | ||
| } | ||
|
|
||
| // /// linear-growth | ||
| // function run(InterpreterState memory, Operand, Pointer stackTop) internal pure returns (Pointer) { | ||
| // uint256 base; | ||
| // uint256 rate; | ||
| // uint256 t; | ||
| // assembly ("memory-safe") { | ||
| // base := mload(stackTop) | ||
| // rate := mload(add(stackTop, 0x20)) | ||
| // stackTop := add(stackTop, 0x40) | ||
| // t := mload(stackTop) | ||
| // } | ||
| // base = UD60x18.unwrap(add(UD60x18.wrap(base), mul(UD60x18.wrap(rate), UD60x18.wrap(t)))); | ||
| /// linear-growth | ||
| function run(InterpreterState memory, OperandV2, Pointer stackTop) internal pure returns (Pointer) { | ||
| Float base; | ||
| Float rate; | ||
| Float t; | ||
| assembly ("memory-safe") { | ||
| base := mload(stackTop) | ||
| rate := mload(add(stackTop, 0x20)) | ||
| stackTop := add(stackTop, 0x40) | ||
| t := mload(stackTop) | ||
| } | ||
|
|
||
| // assembly ("memory-safe") { | ||
| // mstore(stackTop, base) | ||
| // } | ||
| // return stackTop; | ||
| // } | ||
| base = LibDecimalFloat.add(base, LibDecimalFloat.mul(rate, t)); | ||
|
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||
| // /// Gas intensive reference implementation for testing. | ||
| // function referenceFn(InterpreterState memory, Operand, uint256[] memory inputs) | ||
| // internal | ||
| // pure | ||
| // returns (uint256[] memory) | ||
| // { | ||
| // uint256[] memory outputs = new uint256[](1); | ||
| // outputs[0] = UD60x18.unwrap(add(UD60x18.wrap(inputs[0]), mul(UD60x18.wrap(inputs[1]), UD60x18.wrap(inputs[2])))); | ||
| // return outputs; | ||
| // } | ||
| // } | ||
| assembly ("memory-safe") { | ||
| mstore(stackTop, base) | ||
| } | ||
| return stackTop; | ||
| } | ||
|
|
||
| /// Gas intensive reference implementation for testing. | ||
| function referenceFn(InterpreterState memory, OperandV2, StackItem[] memory inputs) | ||
| internal | ||
| pure | ||
| returns (StackItem[] memory) | ||
| { | ||
| Float base = Float.wrap(StackItem.unwrap(inputs[0])); | ||
| Float rate = Float.wrap(StackItem.unwrap(inputs[1])); | ||
| Float t = Float.wrap(StackItem.unwrap(inputs[2])); | ||
| StackItem[] memory outputs = new StackItem[](1); | ||
| outputs[0] = StackItem.wrap(Float.unwrap(LibDecimalFloat.add(base, LibDecimalFloat.mul(rate, t)))); | ||
| return outputs; | ||
| } | ||
| } |
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