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small optimizations

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This commit is contained in:
Nicholas Ward 2023-02-22 15:44:31 -08:00
parent 213ba8ff50
commit e5f8632b5e
3 changed files with 7 additions and 16 deletions
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7
evm/src/cpu/kernel/asm/hash/blake2b/compression.asm
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@ -209,10 +209,9 @@ hash_generate_return:
PUSH 0 PUSH 0
%mload_kernel_general %mload_kernel_general
// stack: num_blocks, cur_block + 1, h_0', h_1', h_2', h_3', h_4', h_5', h_6', h_7', cur_block + 1, retdest // stack: num_blocks, cur_block + 1, h_0', h_1', h_2', h_3', h_4', h_5', h_6', h_7', cur_block + 1, retdest
EQ GT
// stack: last_block, h_0', h_1', h_2', h_3', h_4', h_5', h_6', h_7', cur_block + 1, retdest // stack: not_last_block, h_0', h_1', h_2', h_3', h_4', h_5', h_6', h_7', cur_block + 1, retdest
%jumpi(compression_end) %jumpi(compression_loop)
%jump(compression_loop)
compression_end: compression_end:
// stack: h_0', h_1', h_2', h_3', h_4', h_5', h_6', h_7', cur_block + 1, retdest // stack: h_0', h_1', h_2', h_3', h_4', h_5', h_6', h_7', cur_block + 1, retdest

4
evm/src/cpu/kernel/asm/hash/sha2/compression.asm
View File

@ -180,9 +180,7 @@ compression_loop:
// stack: a[i+1], b[i+1], c[i+1], d[i+1], e[i+1], f[i+1], g[i+1], h[i+1], num_blocks new, scratch_space_addr, message_schedule_addr new, (i+1)%64, retdest // stack: a[i+1], b[i+1], c[i+1], d[i+1], e[i+1], f[i+1], g[i+1], h[i+1], num_blocks new, scratch_space_addr, message_schedule_addr new, (i+1)%64, retdest
DUP12 DUP12
// stack: (i+1)%64, a[i+1], b[i+1], c[i+1], d[i+1], e[i+1], f[i+1], g[i+1], h[i+1], num_blocks new, scratch_space_addr, message_schedule_addr new, (i+1)%64, retdest // stack: (i+1)%64, a[i+1], b[i+1], c[i+1], d[i+1], e[i+1], f[i+1], g[i+1], h[i+1], num_blocks new, scratch_space_addr, message_schedule_addr new, (i+1)%64, retdest
ISZERO %jumpi(compression_loop)
%jumpi(compression_end_block)
%jump(compression_loop)
compression_end_block: compression_end_block:
// Add the initial values of the eight working variables (from the start of this block's compression) back into them. // Add the initial values of the eight working variables (from the start of this block's compression) back into them.
// stack: a[64], b[64], c[64], d[64], e[64], f[64], g[64], h[64], num_blocks, scratch_space_addr, message_schedule_addr, i, retdest // stack: a[64], b[64], c[64], d[64], e[64], f[64], g[64], h[64], num_blocks, scratch_space_addr, message_schedule_addr, i, retdest

12
evm/src/cpu/kernel/asm/hash/sha2/message_schedule.asm
View File

@ -55,9 +55,7 @@ gen_message_schedule_from_block_0_loop:
// stack: counter, output_addr - 4, block[0] >> 32, block[1], retdest // stack: counter, output_addr - 4, block[0] >> 32, block[1], retdest
%decrement %decrement
DUP1 DUP1
ISZERO %jumpi(gen_message_schedule_from_block_0_loop)
%jumpi(gen_message_schedule_from_block_0_end)
%jump(gen_message_schedule_from_block_0_loop)
gen_message_schedule_from_block_0_end: gen_message_schedule_from_block_0_end:
// stack: old counter=0, output_addr, block[0], block[1], retdest // stack: old counter=0, output_addr, block[0], block[1], retdest
POP POP
@ -185,9 +183,7 @@ gen_message_schedule_remaining_loop:
%decrement %decrement
// stack: counter - 1, output_addr + 4, block[0], block[1], retdest // stack: counter - 1, output_addr + 4, block[0], block[1], retdest
DUP1 DUP1
ISZERO %jumpi(gen_message_schedule_remaining_loop)
%jumpi(gen_message_schedule_remaining_end)
%jump(gen_message_schedule_remaining_loop)
gen_message_schedule_remaining_end: gen_message_schedule_remaining_end:
// stack: counter=0, output_addr, block[0], block[1], retdest // stack: counter=0, output_addr, block[0], block[1], retdest
%pop4 %pop4
@ -230,9 +226,7 @@ gen_all_message_schedules_loop_end:
// stack: cur_addr + 64, counter - 1, cur_output_addr + 256, output_addr, retdest // stack: cur_addr + 64, counter - 1, cur_output_addr + 256, output_addr, retdest
DUP2 DUP2
// stack: counter - 1, cur_addr + 64, counter - 1, cur_output_addr + 256, output_addr, retdest // stack: counter - 1, cur_addr + 64, counter - 1, cur_output_addr + 256, output_addr, retdest
ISZERO %jumpi(gen_all_message_schedules_loop)
%jumpi(gen_all_message_schedules_end)
%jump(gen_all_message_schedules_loop)
gen_all_message_schedules_end: gen_all_message_schedules_end:
// stack: cur_addr + 64, counter - 1, cur_output_addr + 256, output_addr, retdest // stack: cur_addr + 64, counter - 1, cur_output_addr + 256, output_addr, retdest
%pop3 %pop3