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Return 0 if account doesn't exist

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This commit is contained in:
wborgeaud 2022-11-02 10:03:40 +01:00
parent 6ed6574272
commit ff4210ea78
1 changed files with 16 additions and 14 deletions
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30
evm/src/cpu/kernel/asm/balance.asm
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@ -1,21 +1,23 @@
%macro balance global balance:
// stack: address // stack: address, retdest
%mpt_read_state_trie %mpt_read_state_trie
// stack: account_ptr // stack: account_ptr, retdest
DUP1 ISZERO %jumpi(retzero) // If the account pointer is null, return 0.
%add_const(1) %add_const(1)
// stack: balance_ptr // stack: balance_ptr
%mload_trie_data %mload_trie_data
// stack: balance
%endmacro
global balance:
// stack: address, retdest
%balance
// stack: balance, retdest // stack: balance, retdest
SWAP1 JUMP SWAP1 JUMP
%macro selfbalance retzero:
// stack: (empty) %stack (account_ptr, retdest) -> (retdest, 0)
ADDRESS JUMP
%balance
%endmacro
global selfbalance:
// stack: retdest
%address
PUSH balance
// stack: balance, address, retdest
JUMP