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Merge pull request #1766 from SChernykh/dev

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RandomX: tweaked Ryzen code
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xmrig 2020-07-05 21:16:21 +07:00 committed by GitHub
commit 2eaf8edf0e
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 2 additions and 3 deletions
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3
src/crypto/randomx/asm/program_read_dataset_ryzen.inc
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@ -1,13 +1,12 @@
mov rcx, rbp ;# ecx = ma mov rcx, rbp ;# ecx = ma
shr rcx, 32 shr rcx, 32
and ecx, RANDOMX_DATASET_BASE_MASK and ecx, RANDOMX_DATASET_BASE_MASK
xor r8, qword ptr [rdi+rcx]
xor rbp, rax ;# modify "mx" xor rbp, rax ;# modify "mx"
mov rax, qword ptr [rdi+rcx]
mov edx, ebp ;# edx = mx mov edx, ebp ;# edx = mx
and edx, RANDOMX_DATASET_BASE_MASK and edx, RANDOMX_DATASET_BASE_MASK
prefetchnta byte ptr [rdi+rdx] prefetchnta byte ptr [rdi+rdx]
ror rbp, 32 ;# swap "ma" and "mx" ror rbp, 32 ;# swap "ma" and "mx"
xor r8, rax
xor r9, qword ptr [rdi+rcx+8] xor r9, qword ptr [rdi+rcx+8]
xor r10, qword ptr [rdi+rcx+16] xor r10, qword ptr [rdi+rcx+16]
xor r11, qword ptr [rdi+rcx+24] xor r11, qword ptr [rdi+rcx+24]

2
src/crypto/randomx/randomx.h
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@ -121,7 +121,7 @@ struct RandomX_ConfigurationBase
uint8_t codeShhPrefetchTweaked[20]; uint8_t codeShhPrefetchTweaked[20];
uint8_t codeReadDatasetTweaked[64]; uint8_t codeReadDatasetTweaked[64];
uint32_t codeReadDatasetTweakedSize; uint32_t codeReadDatasetTweakedSize;
uint8_t codeReadDatasetRyzenTweaked[76]; uint8_t codeReadDatasetRyzenTweaked[72];
uint32_t codeReadDatasetRyzenTweakedSize; uint32_t codeReadDatasetRyzenTweakedSize;
uint8_t codeReadDatasetLightSshInitTweaked[68]; uint8_t codeReadDatasetLightSshInitTweaked[68];
uint8_t codePrefetchScratchpadTweaked[32]; uint8_t codePrefetchScratchpadTweaked[32];