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Revert(OutOfBounds): stMemoryTest/memCopySelf #1474

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lima-limon-inc opened this issue Dec 11, 2024 · 2 comments · May be fixed by #1506
Open

Revert(OutOfBounds): stMemoryTest/memCopySelf #1474

lima-limon-inc opened this issue Dec 11, 2024 · 2 comments · May be fixed by #1506
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levm Lambda EVM implementation

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@lima-limon-inc
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lima-limon-inc commented Dec 11, 2024 •
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There is a Revert(OutOfBounds) when there should be a success.

Here's the code that the test executes:

[00]    PUSH1	04
[02]	PUSH1	00
[04]	JUMPDEST	
[05]	PUSH1	0f
[07]	DUP2	
[08]	LT	
[09]	PUSH1	30
[0b]	JUMPI	
[0c]	PUSH1	0a
[0e]	PUSH1	02
[10]	DUP2	
[11]	PUSH1	00
[13]	DUP1	
[14]	DUP7	
[15]	DUP2	
[16]	MLOAD	
[17]	DUP3	
[18]	SSTORE	
[19]	GAS	
[1a]	CALL	
[1b]	POP	
[1c]	PUSH1	00
[1e]	MLOAD	
[1f]	PUSH1	01
[21]	SSTORE	
[22]	PUSH1	0a
[24]	PUSH1	00
[26]	PUSH1	20
[28]	RETURNDATACOPY	
[29]	PUSH1	20
[2b]	MLOAD	
[2c]	PUSH1	02
[2e]	SSTORE	
[2f]	STOP	
[30]	JUMPDEST	
[31]	DUP1	
[32]	PUSH1	11
[34]	PUSH1	01
[36]	DUP1	
[37]	SWAP4	
[38]	ADD	
[39]	MUL	
[3a]	DUP2	
[3b]	MSTORE8	
[3c]	ADD	
[3d]	PUSH1	04
[3f]	JUMP
@lima-limon-inc lima-limon-inc added the levm Lambda EVM implementation label Dec 11, 2024
@lima-limon-inc lima-limon-inc self-assigned this Dec 11, 2024
@lima-limon-inc lima-limon-inc mentioned this issue Dec 11, 2024
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@lima-limon-inc
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Update: This test is a bit of a rabbit hole.

The problem is, if one tries to simply return a vector filled with 0's in the RETURNDATACOPY function, memCopySelf.json fails stating that a gass difference error.
HOWEVER, 10 additional tests fail.

@lima-limon-inc
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lima-limon-inc commented Dec 13, 2024 •
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This test, as seen in the mnemonics, uses the CALL operand.

While debugging, it seems like the generic_call function is receiving as address:
0x0000000000000000000000000000000000000004
When in reality, that is not an address.

The only other address in the test is: 0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b

That leads me to believe that the problem is in one of the other operands.

@lima-limon-inc lima-limon-inc removed their assignment Dec 13, 2024
@lima-limon-inc lima-limon-inc changed the title ExecutionResultMismatch: stMemoryTest/memCopySelf Revert(OutOfBounds): stMemoryTest/memCopySelf Dec 13, 2024
This was referenced Dec 13, 2024
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