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Merge pull request #754 from mir-protocol/sha2_inline_consts

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Inline some SHA2 constants
This commit is contained in:
Nicholas Ward 2022-10-03 15:20:34 -07:00 committed by GitHub
commit d48f63142f
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2 changed files with 9 additions and 40 deletions
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39
evm/src/cpu/kernel/asm/sha2/compression.asm
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@ -22,36 +22,15 @@ global sha2_compression:
// stack: scratch_space_addr, num_blocks, message_schedule_addr, i=0, retdest
SWAP1
// stack: num_blocks, scratch_space_addr, message_schedule_addr, i=0, retdest
PUSH sha2_constants_h
%add_const(28)
%mload_kernel_code_u32
// stack: h[0], num_blocks, scratch_space_addr, message_schedule_addr, i=0, retdest
PUSH sha2_constants_h
%add_const(24)
%mload_kernel_code_u32
// stack: g[0], h[0], num_blocks, scratch_space_addr, message_schedule_addr, i=0, retdest
PUSH sha2_constants_h
%add_const(20)
%mload_kernel_code_u32
// stack: f[0], g[0], h[0], num_blocks, scratch_space_addr, message_schedule_addr, i=0, retdest
PUSH sha2_constants_h
%add_const(16)
%mload_kernel_code_u32
// stack: e[0], f[0], g[0], h[0], num_blocks, scratch_space_addr, message_schedule_addr, i=0, retdest
PUSH sha2_constants_h
%add_const(12)
%mload_kernel_code_u32
// stack: d[0], e[0], f[0], g[0], h[0], num_blocks, scratch_space_addr, message_schedule_addr, i=0, retdest
PUSH sha2_constants_h
%add_const(8)
%mload_kernel_code_u32
// stack: c[0], d[0], e[0], f[0], g[0], h[0], num_blocks, scratch_space_addr, message_schedule_addr, i=0, retdest
PUSH sha2_constants_h
%add_const(4)
%mload_kernel_code_u32
// stack: b[0], c[0], d[0], e[0], f[0], g[0], h[0], num_blocks, scratch_space_addr, message_schedule_addr, i=0, retdest
PUSH sha2_constants_h
%mload_kernel_code_u32
// Push the initial hash values; these constants are called H^(0) in the spec.
PUSH 0x5be0cd19 // H^(0)_7
PUSH 0x1f83d9ab // H^(0)_6
PUSH 0x9b05688c // H^(0)_5
PUSH 0x510e527f // H^(0)_4
PUSH 0xa54ff53a // H^(0)_3
PUSH 0x3c6ef372 // H^(0)_2
PUSH 0xbb67ae85 // H^(0)_1
PUSH 0x6a09e667 // H^(0)_0
// stack: a[0], b[0], c[0], d[0], e[0], f[0], g[0], h[0], num_blocks, scratch_space_addr, message_schedule_addr, i=0, retdest
compression_start_block:
// Store the current values of the working variables, as the "initial values" to be added back in at the end of this block.

10
evm/src/cpu/kernel/asm/sha2/constants.asm
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@ -63,13 +63,3 @@ global sha2_constants_k:
BYTES 164, 80, 108, 235
BYTES 190, 249, 163, 247
BYTES 198, 113, 120, 242
global sha2_constants_h:
BYTES 106, 9, 230, 103
BYTES 187, 103, 174, 133
BYTES 60, 110, 243, 114
BYTES 165, 79, 245, 58
BYTES 81, 14, 82, 127
BYTES 155, 5, 104, 140
BYTES 31, 131, 217, 171
BYTES 91, 224, 205, 25