Implement EIP-663: Unlimited SWAP and DUP instructions #529
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Additional details and impacted files@@ Coverage Diff @@
## master #529 +/- ##
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+ Coverage 98.03% 98.08% +0.05%
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Files 59 59
Lines 5687 5837 +150
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+ Hits 5575 5725 +150
Misses 112 112
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axic
reviewed
Nov 30, 2022
axic
reviewed
Nov 30, 2022
axic
reviewed
Dec 5, 2022
lib/evmone/instructions.hpp
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| return nullptr; | ||
| } | ||
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| stack.push(stack[n]); |
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I think this misses the < 1024 check. push does not seem enforce the 1024 limit.
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The stack overflow check is done automatically by the interpreter. This information is in the instruction traits.
gumb0
reviewed
Dec 6, 2022
gumb0
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Dec 6, 2022
gumb0
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Dec 6, 2022
gumb0
reviewed
Dec 6, 2022
gumb0
reviewed
Dec 6, 2022
test/unittests/evm_test.cpp
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| EXPECT_STATUS(EVMC_SUCCESS); | ||
| EXPECT_OUTPUT_INT(256); | ||
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| execute(full_stack_code + OP_DUPN + "fe" + OP_DUPN + "ff"); |
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would it overflow with POP as in checks above?
Suggested change
| execute(full_stack_code + OP_DUPN + "fe" + OP_DUPN + "ff"); | |
| execute(full_stack_code + OP_POP + OP_DUPN + "fe" + OP_DUPN + "ff"); |
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Ah I see OP_POP was needed because of ret_top() in the end
gumb0
reviewed
Dec 6, 2022
gumb0
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Dec 7, 2022
chfast
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Dec 13, 2022
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https://eips.ethereum.org/EIPS/eip-663