# Copyright (c) 2018-2019, tevador <tevador@gmail.com>
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the copyright holder nor the
# names of its contributors may be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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.intel_syntax noprefix
#if defined(__APPLE__)
.text
#define DECL(x) _##x
#else
.section .text
#define DECL(x) x
#endif
#if defined(__WIN32__) || defined(__CYGWIN__)
#define WINABI
#endif
.global DECL(randomx_prefetch_scratchpad)
.global DECL(randomx_prefetch_scratchpad_end)
.global DECL(randomx_program_prologue)
.global DECL(randomx_program_prologue_first_load)
.global DECL(randomx_program_loop_begin)
.global DECL(randomx_program_loop_load)
.global DECL(randomx_program_start)
.global DECL(randomx_program_read_dataset)
.global DECL(randomx_program_read_dataset_sshash_init)
.global DECL(randomx_program_read_dataset_sshash_fin)
.global DECL(randomx_program_loop_store)
.global DECL(randomx_program_loop_end)
.global DECL(randomx_dataset_init)
.global DECL(randomx_program_epilogue)
.global DECL(randomx_sshash_load)
.global DECL(randomx_sshash_prefetch)
.global DECL(randomx_sshash_end)
.global DECL(randomx_sshash_init)
.global DECL(randomx_program_end)
.global DECL(randomx_reciprocal_fast)
#include "configuration.h"
#define RANDOMX_SCRATCHPAD_MASK (RANDOMX_SCRATCHPAD_L3-64)
#define RANDOMX_DATASET_BASE_MASK (RANDOMX_DATASET_BASE_SIZE-64)
#define RANDOMX_CACHE_MASK (RANDOMX_ARGON_MEMORY*16-1)
#define RANDOMX_ALIGN 4096
#define SUPERSCALAR_OFFSET ((((RANDOMX_ALIGN + 32 * RANDOMX_PROGRAM_SIZE) - 1) / (RANDOMX_ALIGN) + 1) * (RANDOMX_ALIGN))
#define db .byte
DECL(randomx_prefetch_scratchpad):
mov rdx, rax
and eax, RANDOMX_SCRATCHPAD_MASK
prefetcht0 [rsi+rax]
ror rdx, 32
and edx, RANDOMX_SCRATCHPAD_MASK
prefetcht0 [rsi+rdx]
DECL(randomx_prefetch_scratchpad_end):
.balign 64
DECL(randomx_program_prologue):
#if defined(WINABI)
#include "asm/program_prologue_win64.inc"
#else
#include "asm/program_prologue_linux.inc"
#endif
movapd xmm13, xmmword ptr [mantissaMask+rip]
movapd xmm14, xmmword ptr [exp240+rip]
movapd xmm15, xmmword ptr [scaleMask+rip]
DECL(randomx_program_prologue_first_load):
xor rax, r8
xor rax, r8
mov rdx, rax
and eax, RANDOMX_SCRATCHPAD_MASK
ror rdx, 32
and edx, RANDOMX_SCRATCHPAD_MASK
jmp DECL(randomx_program_loop_begin)
.balign 64
#include "asm/program_xmm_constants.inc"
.balign 64
DECL(randomx_program_loop_begin):
nop
DECL(randomx_program_loop_load):
#include "asm/program_loop_load.inc"
DECL(randomx_program_start):
nop
DECL(randomx_program_read_dataset):
#include "asm/program_read_dataset.inc"
DECL(randomx_program_read_dataset_sshash_init):
#include "asm/program_read_dataset_sshash_init.inc"
DECL(randomx_program_read_dataset_sshash_fin):
#include "asm/program_read_dataset_sshash_fin.inc"
DECL(randomx_program_loop_store):
#include "asm/program_loop_store.inc"
DECL(randomx_program_loop_end):
nop
.balign 64
DECL(randomx_dataset_init):
push rbx
push rbp
push r12
push r13
push r14
push r15
#if defined(WINABI)
push rdi
push rsi
mov rdi, qword ptr [rcx] ;# cache->memory
mov rsi, rdx ;# dataset
mov rbp, r8 ;# block index
push r9 ;# max. block index
#else
mov rdi, qword ptr [rdi] ;# cache->memory
;# dataset in rsi
mov rbp, rdx ;# block index
push rcx ;# max. block index
#endif
init_block_loop:
prefetchw byte ptr [rsi]
mov rbx, rbp
.byte 232 ;# 0xE8 = call
.int SUPERSCALAR_OFFSET - (call_offset - DECL(randomx_dataset_init))
call_offset:
mov qword ptr [rsi+0], r8
mov qword ptr [rsi+8], r9
mov qword ptr [rsi+16], r10
mov qword ptr [rsi+24], r11
mov qword ptr [rsi+32], r12
mov qword ptr [rsi+40], r13
mov qword ptr [rsi+48], r14
mov qword ptr [rsi+56], r15
add rbp, 1
add rsi, 64
cmp rbp, qword ptr [rsp]
jb init_block_loop
pop rax
#if defined(WINABI)
pop rsi
pop rdi
#endif
pop r15
pop r14
pop r13
pop r12
pop rbp
pop rbx
ret
.balign 64
DECL(randomx_program_epilogue):
#include "asm/program_epilogue_store.inc"
#if defined(WINABI)
#include "asm/program_epilogue_win64.inc"
#else
#include "asm/program_epilogue_linux.inc"
#endif
.balign 64
DECL(randomx_sshash_load):
#include "asm/program_sshash_load.inc"
DECL(randomx_sshash_prefetch):
#include "asm/program_sshash_prefetch.inc"
DECL(randomx_sshash_end):
nop
.balign 64
DECL(randomx_sshash_init):
lea r8, [rbx+1]
#include "asm/program_sshash_prefetch.inc"
imul r8, qword ptr [r0_mul+rip]
mov r9, qword ptr [r1_add+rip]
xor r9, r8
mov r10, qword ptr [r2_add+rip]
xor r10, r8
mov r11, qword ptr [r3_add+rip]
xor r11, r8
mov r12, qword ptr [r4_add+rip]
xor r12, r8
mov r13, qword ptr [r5_add+rip]
xor r13, r8
mov r14, qword ptr [r6_add+rip]
xor r14, r8
mov r15, qword ptr [r7_add+rip]
xor r15, r8
jmp DECL(randomx_program_end)
.balign 64
#include "asm/program_sshash_constants.inc"
.balign 64
DECL(randomx_program_end):
nop
DECL(randomx_reciprocal_fast):
#if !defined(WINABI)
mov rcx, rdi
#endif
#include "asm/randomx_reciprocal.inc"