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Unconditional RET

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This commit is contained in:
tevador
2018-12-28 12:09:37 +01:00
parent 39c569ae44
commit 76b6b05cf2
4 changed files with 55 additions and 44 deletions
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18
src/InterpretedVirtualMachine.cpp
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@@ -26,6 +26,9 @@ along with RandomX. If not, see<http://www.gnu.org/licenses/>.
#include <stdexcept>
#include <sstream>
#include <cmath>
#ifdef STATS
#include <algorithm>
#endif
#ifdef FPUCHECK
constexpr bool fpuCheck = true;
@@ -54,6 +57,9 @@ namespace RandomX {
void InterpretedVirtualMachine::execute() {
while (ic > 0) {
#ifdef STATS
count_instructions[pc]++;
#endif
auto& inst = p(pc);
if(trace) std::cout << inst.getName() << " (" << std::dec << pc << ")" << std::endl;
pc = (pc + 1) % ProgramLength;
@@ -61,6 +67,9 @@ namespace RandomX {
(this->*handler)(inst);
ic--;
}
#ifdef STATS
count_endstack += stack.size();
#endif
}
convertible_t InterpretedVirtualMachine::loada(Instruction& inst) {
@@ -284,9 +293,13 @@ namespace RandomX {
#ifdef STATS
count_CALL_taken++;
count_jump_taken[inst.locb & 7]++;
count_retdepth = std::max(0, count_retdepth - 1);
#endif
stackPush(a);
stackPush(pc);
#ifdef STATS
count_max_stack = std::max(count_max_stack, (int)stack.size());
#endif
pc += (inst.imm8 & 127) + 1;
pc = pc % ProgramLength;
if (trace) std::cout << std::hex << a.u64 << std::endl;
@@ -306,10 +319,11 @@ namespace RandomX {
convertible_t a = loada(inst);
convertible_t b = loadbr1(inst);
convertible_t& c = getcr(inst);
if (stack.size() > 0 && JMP_COND(inst.locb, reg.r[inst.regb % RegistersCount], inst.imm32)) {
if (stack.size() > 0) {
#ifdef STATS
count_RET_taken++;
count_jump_taken[inst.locb & 7]++;
count_retdepth++;
count_retdepth_max = std::max(count_retdepth_max, count_retdepth);
#endif
auto raddr = stackPopAddress();
auto retval = stackPopValue();