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backwards relocs

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Signed-off-by: lizzie <lizzie@eden-emu.dev>
This commit is contained in:
lizzie 2025-11-03 00:39:38 +00:00
parent 94f1c94fb8
commit 851f03d4d7
2 changed files with 20 additions and 6 deletions
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15
externals/powah/tests.cpp vendored
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@ -141,7 +141,19 @@ TEST_CASE("ppc64: rotldi", "[ppc64]") {
REQUIRE(data[12] == EB32(0x7823837c));
}
#if 1 //&& defined(ARCHITECTURE_ppc64)
TEST_CASE("ppc64: branch-backwards", "[ppc64]") {
std::vector<uint32_t> data(64);
powah::Context ctx(data.data(), data.size());
powah::Label l_3 = ctx.DefineLabel();
ctx.LABEL(l_3);
ctx.ADD(powah::R1, powah::R2, powah::R3);
ctx.B(l_3);
ctx.ApplyRelocs();
REQUIRE(data[0] == EB32(0x141a227c));
REQUIRE(data[1] == EB32(0xfcffff4b));
}
#if defined(ARCHITECTURE_ppc64)
/*
0: d619637c mullw 3, 3, 3
4: 20006378 clrldi 3, 3, 32
@ -221,6 +233,7 @@ TEST_CASE("ppc64: live-exec xoralu", "[ppc64]") {
};
auto* fn = (int (*)(int, int, int))data;
REQUIRE(fn(0, 1, 2) == orig(0, 1, 2));
REQUIRE(fn(6456, 4564, 4564561) == orig(6456, 4564, 4564561));
munmap((void*)data, 4096);
}