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This commit is contained in:
Nicholas Ward 2022-07-18 16:50:40 -07:00
parent 3140c77cd1
commit caa1aeee84
1 changed files with 61 additions and 2 deletions
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63
evm/src/cpu/kernel/asm/sha2.asm
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@ -100,10 +100,69 @@ global sha2_pad:
global sha2_gen_message_schedule_from_block:
JUMPDEST
// stack: block_addr, output_addr
dup1
// stack: block_addr, block_addr, output_addr
%increment
// stack: block_addr + 1, block_addr, output_addr
swap1
// stack: block_addr, block_addr + 1, output_addr
mload
// stack: block, output_addr
// stack: block[0], block_addr + 1, output_addr
swap1
// stack: block_addr + 1, block[0], output_addr
mload
// stack: block[1], block[0], output_addr
swap2
// stack: output_addr, block[0], block[1]
// stack: output_addr, block[0], block[1]
push 16
// stack: counter=16, output_addr, block[0], block[1]
%jump(sha2_gen_message_schedule_from_block_0_loop)
sha2_gen_message_schedule_from_block_0_loop:
JUMPDEST
// stack: counter, output_addr, block[0], block[1]
swap2
// stack: block[0], output_addr, counter, block[1]
push 1
push 32
shl
// stack: 1 << 32, block[0], output_addr, counter, block[1]
dup2
dup2
// stack: 1 << 32, block[0], 1 << 32, block[0], output_addr, counter, block[1]
swap1
// stack: block[0], 1 << 32, 1 << 32, block[0], output_addr, counter, block[1]
mod
// stack: block[0] % (1 << 32), 1 << 32, block[0], output_addr, counter, block[1]
swap2
// stack: block[0], 1 << 32, block[0] % (1 << 32), output_addr, counter, block[1]
// stack: block[0], 1 << 32, block[0] % (1 << 32), output_addr, counter, block[1]
div
// stack: block[0] // (1 << 32), block[0] % (1 << 32), output_addr, counter, block[1]
swap1
// stack: block[0] % (1 << 32), block[0] // (1 << 32), output_addr, counter, block[1]
dup3
// stack: output_addr, block[0] % (1 << 32), block[0] // (1 << 32), output_addr, counter, block[1]
mstore
// stack: block[0] // (1 << 32), output_addr, counter, block[1]
swap1
// stack: output_addr, block[0] // (1 << 32), counter, block[1]
%increment
// stack: output_addr + 1, block[0] // (1 << 32), counter, block[1]
swap1
// stack: block[0] // (1 << 32), output_addr + 1, counter, block[1]
swap2
// stack: counter, output_addr + 1, block[0] // (1 << 32), block[1]
%decrement
dup1
iszero
%jumpi(sha2_gen_message_schedule_from_block_0_end)
%jump(sha2_gen_message_schedule_from_block_0_loop)
sha2_gen_message_schedule_from_block_0_end:
JUMPDEST
// stack: old counter=0,
pop
push 16
// stack: counter=16, block, output_addr