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Revert "RandomX: rewrote dataset read code"

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This reverts commit ff82ca57f2.
This commit is contained in:
MoneroOcean
2021-05-31 16:01:50 +00:00
parent 8a1ca690eb
commit 442353b31e
10 changed files with 69 additions and 16 deletions
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1
src/crypto/randomx/asm/program_prologue_linux.inc
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@@ -22,7 +22,6 @@
mov rsi, rdx ;# uint8_t* scratchpad
mov rax, rbp
ror rbp, 32
;# zero integer registers
xor r8, r8

1
src/crypto/randomx/asm/program_prologue_win64.inc
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@@ -35,7 +35,6 @@
mov rbx, r9 ;# loop counter
mov rax, rbp
ror rbp, 32
;# zero integer registers
xor r8, r8

23
src/crypto/randomx/asm/program_read_dataset.inc
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@@ -1,16 +1,17 @@
mov ecx, ebp ;# ecx = ma
and ecx, RANDOMX_DATASET_BASE_MASK
xor r8, qword ptr [rdi+rcx]
ror rbp, 32 ;# swap "ma" and "mx"
xor rbp, rax ;# modify "mx"
mov edx, ebp ;# edx = mx
and edx, RANDOMX_DATASET_BASE_MASK
prefetchnta byte ptr [rdi+rdx]
xor r9, qword ptr [rdi+rcx+8]
xor r10, qword ptr [rdi+rcx+16]
xor r11, qword ptr [rdi+rcx+24]
xor r12, qword ptr [rdi+rcx+32]
xor r13, qword ptr [rdi+rcx+40]
xor r14, qword ptr [rdi+rcx+48]
xor r15, qword ptr [rdi+rcx+56]
ror rbp, 32 ;# swap "ma" and "mx"
mov edx, ebp ;# edx = ma
and edx, RANDOMX_DATASET_BASE_MASK
lea rcx, [rdi+rdx] ;# dataset cache line
xor r8, qword ptr [rcx+0]
xor r9, qword ptr [rcx+8]
xor r10, qword ptr [rcx+16]
xor r11, qword ptr [rcx+24]
xor r12, qword ptr [rcx+32]
xor r13, qword ptr [rcx+40]
xor r14, qword ptr [rcx+48]
xor r15, qword ptr [rcx+56]

17
src/crypto/randomx/asm/program_read_dataset_ryzen.inc Normal file
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@@ -0,0 +1,17 @@
mov rcx, rbp ;# ecx = ma
shr rcx, 32
and ecx, RANDOMX_DATASET_BASE_MASK
xor r8, qword ptr [rdi+rcx]
xor rbp, rax ;# modify "mx"
mov edx, ebp ;# edx = mx
and edx, RANDOMX_DATASET_BASE_MASK
prefetchnta byte ptr [rdi+rdx]
ror rbp, 32 ;# swap "ma" and "mx"
xor r9, qword ptr [rdi+rcx+8]
xor r10, qword ptr [rdi+rcx+16]
xor r11, qword ptr [rdi+rcx+24]
xor r12, qword ptr [rdi+rcx+32]
xor r13, qword ptr [rdi+rcx+40]
xor r14, qword ptr [rdi+rcx+48]
xor r15, qword ptr [rdi+rcx+56]