Assembly code generator for Windows 64-bit

src/CompiledVirtualMachine.cpp

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+/*
+Copyright (c) 2018 tevador
+
+This file is part of RandomX.
+
+RandomX is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+RandomX is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with RandomX.  If not, see<http://www.gnu.org/licenses/>.
+*/
+
+#include "CompiledVirtualMachine.hpp"
+#include "Pcg32.hpp"
+#include "common.hpp"
+#include "instructions.hpp"
+
+namespace RandomX {
+
+	void CompiledVirtualMachine::initializeProgram(const void* seed) {
+		Pcg32 gen(seed);
+		for (unsigned i = 0; i < sizeof(reg) / sizeof(Pcg32::result_type); ++i) {
+			*(((uint32_t*)&reg) + i) = gen();
+		}
+		FPINIT();
+		for (int i = 0; i < 8; ++i) {
+			reg.f[i].f64 = (double)reg.f[i].i64;
+		}
+		for (unsigned i = 0; i < ProgramLength; ++i) {
+			gen(); gen(); gen(); gen();
+		}
+		mem.ma = (gen() ^ *(((uint32_t*)seed) + 4)) & ~7;
+		mem.mx = *(((uint32_t*)seed) + 5);
+	}
+
+	void CompiledVirtualMachine::execute() {
+		FPINIT();
+		executeProgram(reg, mem, readDataset, scratchpad);
+	}
+}