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a64_emit_x64: Fix stack misalignment on Windows for 128-bit exclusive writes

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Discovered by @Subv.
Includes a test to ensure this codepath is exercised on Windows.
This commit is contained in:
MerryMage
2018-07-22 15:05:53 +01:00
parent 04b4c8b0cf
commit edd795e991
2 changed files with 41 additions and 2 deletions
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39
tests/A64/a64.cpp
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@@ -6,6 +6,8 @@
#include <catch.hpp>
#include <dynarmic/A64/exclusive_monitor.h>
#include "testenv.h"
TEST_CASE("A64: ADD", "[a64]") {
@@ -274,3 +276,40 @@ TEST_CASE("A64: FABD", "[a64]") {
REQUIRE(jit.GetVector(22) == Vector{0x56d3f0857fc90e2b, 0x6e4b0a4144873176});
}
TEST_CASE("A64: 128-bit exclusive read/write", "[a64]") {
TestEnv env;
Dynarmic::A64::ExclusiveMonitor monitor{1};
Dynarmic::A64::UserConfig conf;
conf.callbacks = &env;
conf.processor_id = 0;
SECTION("Local Monitor Only") {
conf.global_monitor = nullptr;
}
SECTION("Global Monitor") {
conf.global_monitor = &monitor;
}
Dynarmic::A64::Jit jit{conf};
env.code_mem[0] = 0xc87f0861; // LDXP X1, X2, [X3]
env.code_mem[1] = 0xc8241865; // STXP W4, X5, X6, [X3]
env.code_mem[2] = 0x14000000; // B .
jit.SetPC(0);
jit.SetRegister(3, 0x1234567812345678);
jit.SetRegister(4, 0xbaadbaadbaadbaad);
jit.SetRegister(5, 0xaf00d1e5badcafe0);
jit.SetRegister(6, 0xd0d0cacad0d0caca);
env.ticks_left = 3;
jit.Run();
REQUIRE(jit.GetRegister(1) == 0x7f7e7d7c7b7a7978);
REQUIRE(jit.GetRegister(2) == 0x8786858483828180);
REQUIRE(jit.GetRegister(4) == 0);
REQUIRE(env.MemoryRead64(0x1234567812345678) == 0xaf00d1e5badcafe0);
REQUIRE(env.MemoryRead64(0x1234567812345680) == 0xd0d0cacad0d0caca);
}