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emit_x64_data_processing: Detect overflow on division

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Merry
2022-11-29 14:15:03 +00:00
parent 905d822810
commit 038b728797
3 changed files with 52 additions and 5 deletions
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21
tests/A64/a64.cpp
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@@ -1199,3 +1199,24 @@ TEST_CASE("A64: SQRDMULH QC flag when output invalidated", "[a64]") {
REQUIRE(jit.GetFpsr() == 0x08000000);
REQUIRE(jit.GetVector(11) == Vector{0xb4cb'4fec'8563'1032, 0x0000'0000'0000'0000});
}
TEST_CASE("A64: SDIV maximally", "[a64]") {
A64TestEnv env;
A64::Jit jit{A64::UserConfig{&env}};
env.code_mem.emplace_back(0x9ac00c22); // SDIV X2, X1, X0
env.code_mem.emplace_back(0x14000000); // B .
jit.SetRegister(0, 0xffffffffffffffff);
jit.SetRegister(1, 0x8000000000000000);
jit.SetRegister(2, 0xffffffffffffffff);
jit.SetPC(0);
env.ticks_left = 2;
jit.Run();
REQUIRE(jit.GetRegister(0) == 0xffffffffffffffff);
REQUIRE(jit.GetRegister(1) == 0x8000000000000000);
REQUIRE(jit.GetRegister(2) == 0x8000000000000000);
REQUIRE(jit.GetPC() == 4);
}