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JIT compiler for x86

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This commit is contained in:
tevador
2018-12-18 22:00:58 +01:00
parent ddc29cb4d3
commit ed0bc906d6
12 changed files with 917 additions and 46 deletions
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src/CompiledVirtualMachine.cpp
+16 -4
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@@ -21,23 +21,35 @@ along with RandomX. If not, see<http://www.gnu.org/licenses/>.
#include "Pcg32.hpp"
#include "common.hpp"
#include "instructions.hpp"
#include <stdexcept>
namespace RandomX {
CompiledVirtualMachine::CompiledVirtualMachine(bool softAes) : VirtualMachine(softAes) {
#if !defined(_M_X64) && !defined(__x86_64__)
throw std::runtime_error("Compiled VM only supports x86-64 CPUs");
#endif
}
void CompiledVirtualMachine::initializeDataset(const void* seed, bool lightClient) {
if (lightClient) {
throw std::runtime_error("Compiled VM does not support light-client mode");
}
VirtualMachine::initializeDataset(seed, lightClient);
}
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();
}
for (unsigned i = 0; i < ProgramLength; ++i) {
gen(); gen(); gen(); gen();
}
compiler.generateProgram(gen);
mem.ma = (gen() ^ *(((uint32_t*)seed) + 4)) & ~7;
mem.mx = *(((uint32_t*)seed) + 5);
}
void CompiledVirtualMachine::execute() {
executeProgram(reg, mem, readDataset, scratchpad);
compiler.getProgramFunc()(reg, mem, scratchpad);
#ifdef TRACE
for (int32_t i = InstructionCount - 1; i >= 0; --i) {
std::cout << std::hex << tracepad[i].u64 << std::endl;