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This commit is contained in:
Nicholas Ward 2022-12-02 08:10:18 -08:00
parent 50ffb9072a
commit fc14475541
1 changed files with 8 additions and 3 deletions
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11
evm/src/cpu/kernel/asm/hash/blake2b/compression.asm
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@ -111,7 +111,8 @@ compression_loop:
// Store the initial 16 values of the internal state.
%blake2b_internal_state_addr
// stack: start, h_0, ..., h_7, invert_if_last_block, t, cur_block, retdest
// First eight words of internal state: current state h_0, ..., h_7.
// First eight words of the internal state: current hash value h_0, ..., h_7.
%rep 8
SWAP1
DUP2
@ -119,6 +120,8 @@ compression_loop:
%increment
%endrep
// stack: start + 8, invert_if_last_block, t, cur_block, retdest
// Next four values of the internal state: first four IV values.
PUSH 0
// stack: 0, start + 8, invert_if_last_block, t, cur_block, retdest
%rep 4
@ -153,7 +156,9 @@ compression_loop:
// stack: t_lo = t % (1 << 64), t_hi = t >> 64, 4, start + 12, invert_if_last_block, cur_block, retdest
%stack (t_lo, t_hi, i, loc, inv) -> (i, loc, t_lo, t_hi, inv, 0)
// stack: 4, start + 12, t_lo, t_hi, invert_if_last_block, 0, cur_block, retdest
// XOR the values (t % 2**64, t >> 64, invert_if, 0) into the last four IV values.
// Last four values of the internal state: last four IV values, XOR'd with
// the values (t % 2**64, t >> 64, invert_if, 0).
%rep 4
// stack: i, loc, val, next_val,...
%stack (i, loc, val) -> (i, val, loc, i, loc)
@ -277,4 +282,4 @@ compression_end:
// stack: hash_second = h_4' || h_5' || h_6' || h_7', hash_first = h_0' || h_1' || h_2' || h_3', retdest
%stack (second, first, ret) -> (ret, second, first)
// stack: retdest, hash_first, hash_second
JUMP
JUMP