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This commit is contained in:
Nicholas Ward 2023-04-28 07:05:54 -07:00
parent b4e06271df
commit 96742f2946
1 changed files with 8 additions and 2 deletions
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10
evm/src/cpu/kernel/asm/core/precompiles/expmod.asm
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@ -1,7 +1,7 @@
%macro expmod_gas_f
// stack: x
%add_const(7)
%div_const(3)
%div_const(8)
// stack: ceil(x/8)
%square
// stack: ceil(x/8)^2
@ -85,7 +85,13 @@ global precompile_expmod:
%stack (l: 3) -> (l, l)
// stack: l_M, l_E, l_B, l_M, l_E, l_B, kexit_info
%max_3
// stack: len, l_M, l_E, l_B, kexit_info
// stack: max_len, l_M, l_E, l_B, kexit_info
// Ceil-divide by 16 to get number of 128-bit limbs from number of bytes.
%add_const(15)
%div_const(16)
// stack: len=ceil(max_len/16), l_M, l_E, l_B, kexit_info
// Calculate gas costs.