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FPROUND - variable flag offset

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tevador
2019-01-11 10:52:12 +01:00
parent e487092f07
commit c02ee4291d
5 changed files with 20 additions and 8 deletions
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4
src/AssemblyGeneratorX86.cpp
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@@ -466,7 +466,9 @@ namespace RandomX {
void AssemblyGeneratorX86::h_FPROUND(Instruction& instr, int i) {
genar(instr, i);
asmCode << "\tmov rcx, rax" << std::endl;
asmCode << "\tshl eax, 13" << std::endl;
int rotate = (13 - (instr.imm8 & 63)) & 63;
if (rotate != 0)
asmCode << "\trol rax, " << rotate << std::endl;
asmCode << "\tand eax, 24576" << std::endl;
asmCode << "\tor eax, 40896" << std::endl;
asmCode << "\tmov dword ptr [rsp - 8], eax" << std::endl;