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Updated yul.rst with feedback.

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Updated yul.rst with explanation of 0x60 pointer choice.
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Pranay 2022-08-13 18:39:46 +05:30 committed by GitHub
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@ -1162,7 +1162,8 @@ An example Yul Object is shown below:
code { code {
function allocate(size) -> ptr { function allocate(size) -> ptr {
ptr := mload(0x40) ptr := mload(0x40)
if iszero(ptr) { ptr := 0x80 } // Note that Solidity generated IR code reserves memory offset ``0x60`` as well, but a pure Yul object is free to use memory as it chooses.
if iszero(ptr) { ptr := 0x60 }
mstore(0x40, add(ptr, size)) mstore(0x40, add(ptr, size))
} }
@ -1191,6 +1192,7 @@ An example Yul Object is shown below:
code { code {
function allocate(size) -> ptr { function allocate(size) -> ptr {
ptr := mload(0x40) ptr := mload(0x40)
// Note that Solidity generated IR code reserves memory offset ``0x60`` as well, but a pure Yul object is free to use memory as it chooses.
if iszero(ptr) { ptr := 0x60 } if iszero(ptr) { ptr := 0x60 }
mstore(0x40, add(ptr, size)) mstore(0x40, add(ptr, size))
} }