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Fixed reading from the red zone

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tevador 2019-04-26 23:32:10 +02:00
parent e758c1e2b2
commit ff88a57a98
3 changed files with 7 additions and 5 deletions
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5
doc/program.asm
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@ -605,8 +605,9 @@ randomx_isn_155:
rol rax, 31 rol rax, 31
and eax, 24576 and eax, 24576
or eax, 40896 or eax, 40896
mov dword ptr [rsp-8], eax push rax
ldmxcsr dword ptr [rsp-8] ldmxcsr dword ptr [rsp]
pop rax
randomx_isn_156: randomx_isn_156:
; FSUB_R f3, a2 ; FSUB_R f3, a2
subpd xmm3, xmm10 subpd xmm3, xmm10

5
src/assembly_generator_x86.cpp
View file

@ -535,8 +535,9 @@ namespace randomx {
asmCode << "\trol rax, " << rotate << std::endl; asmCode << "\trol rax, " << rotate << std::endl;
asmCode << "\tand eax, 24576" << std::endl; asmCode << "\tand eax, 24576" << std::endl;
asmCode << "\tor eax, 40896" << std::endl; asmCode << "\tor eax, 40896" << std::endl;
asmCode << "\tmov dword ptr [rsp-8], eax" << std::endl; asmCode << "\tpush rax" << std::endl;
asmCode << "\tldmxcsr dword ptr [rsp-8]" << std::endl; asmCode << "\tldmxcsr dword ptr [rsp]" << std::endl;
asmCode << "\tpop rax" << std::endl;
tracenop(instr); tracenop(instr);
} }

2
src/jit_compiler_x86.cpp
View file

@ -194,7 +194,7 @@ namespace randomx {
static const uint8_t REX_MAXPD[] = { 0x66, 0x41, 0x0f, 0x5f }; static const uint8_t REX_MAXPD[] = { 0x66, 0x41, 0x0f, 0x5f };
static const uint8_t REX_DIVPD[] = { 0x66, 0x41, 0x0f, 0x5e }; static const uint8_t REX_DIVPD[] = { 0x66, 0x41, 0x0f, 0x5e };
static const uint8_t SQRTPD[] = { 0x66, 0x0f, 0x51 }; static const uint8_t SQRTPD[] = { 0x66, 0x0f, 0x51 };
static const uint8_t AND_OR_MOV_LDMXCSR[] = { 0x25, 0x00, 0x60, 0x00, 0x00, 0x0D, 0xC0, 0x9F, 0x00, 0x00, 0x89, 0x44, 0x24, 0xF8, 0x0F, 0xAE, 0x54, 0x24, 0xF8 }; static const uint8_t AND_OR_MOV_LDMXCSR[] = { 0x25, 0x00, 0x60, 0x00, 0x00, 0x0D, 0xC0, 0x9F, 0x00, 0x00, 0x50, 0x0F, 0xAE, 0x14, 0x24, 0x58 };
static const uint8_t ROL_RAX[] = { 0x48, 0xc1, 0xc0 }; static const uint8_t ROL_RAX[] = { 0x48, 0xc1, 0xc0 };
static const uint8_t XOR_ECX_ECX[] = { 0x33, 0xC9 }; static const uint8_t XOR_ECX_ECX[] = { 0x33, 0xC9 };
static const uint8_t REX_CMP_R32I[] = { 0x41, 0x81 }; static const uint8_t REX_CMP_R32I[] = { 0x41, 0x81 };