1 files changed, 427 insertions, 0 deletions
diff --git a/externals/dynarmic/tests/test_reader.cpp b/externals/dynarmic/tests/test_reader.cpp
new file mode 100644
index 0000000000..44d6e966ea
--- /dev/null
+++ b/externals/dynarmic/tests/test_reader.cpp
@@ -0,0 +1,427 @@
+/* This file is part of the dynarmic project.
+ * Copyright (c) 2023 MerryMage
+ * SPDX-License-Identifier: 0BSD
+ */
+
+#include <array>
+#include <iostream>
+#include <string>
+#include <string_view>
+#include <vector>
+
+#include <fmt/format.h>
+#include <mcl/stdint.hpp>
+
+#include "./A32/testenv.h"
+#include "./A64/testenv.h"
+#include "dynarmic/common/fp/fpsr.h"
+#include "dynarmic/interface/A32/a32.h"
+#include "dynarmic/interface/A64/a64.h"
+
+const bool mask_fpsr_cum_bits = true;
+
+using namespace Dynarmic;
+
+void SkipWhitespace(std::string_view& sv) {
+    auto nextpos{sv.find_first_not_of(' ')};
+    if (nextpos != std::string::npos) {
+        sv.remove_prefix(nextpos);
+    }
+}
+
+void SkipHeader(std::string_view& sv) {
+    sv.remove_prefix(sv.find_first_of(':') + 1);
+    SkipWhitespace(sv);
+}
+
+std::string_view NextToken(std::string_view& sv) {
+    auto nextpos{sv.find_first_of(' ')};
+    auto tok{sv.substr(0, nextpos)};
+    sv.remove_prefix(nextpos == std::string::npos ? sv.size() : nextpos);
+    SkipWhitespace(sv);
+    return tok;
+}
+
+u64 ParseHex(std::string_view hex) {
+    u64 result = 0;
+    while (!hex.empty()) {
+        result <<= 4;
+        if (hex.front() >= '0' && hex.front() <= '9') {
+            result += hex.front() - '0';
+        } else if (hex.front() >= 'a' && hex.front() <= 'f') {
+            result += hex.front() - 'a' + 0xA;
+        } else if (hex.front() >= 'A' && hex.front() <= 'F') {
+            result += hex.front() - 'A' + 0xA;
+        } else if (hex.front() == ':') {
+            return result;
+        } else {
+            fmt::print("Character {} is not a valid hex character\n", hex.front());
+        }
+        hex.remove_prefix(1);
+    }
+    return result;
+}
+
+template<typename TestEnv>
+Dynarmic::A32::UserConfig GetA32UserConfig(TestEnv& testenv, bool noopt) {
+    Dynarmic::A32::UserConfig user_config;
+    user_config.optimizations &= ~OptimizationFlag::FastDispatch;
+    user_config.callbacks = &testenv;
+    user_config.very_verbose_debugging_output = true;
+    if (noopt) {
+        user_config.optimizations = no_optimizations;
+    }
+    return user_config;
+}
+
+template<size_t num_jit_reruns = 1, typename TestEnv>
+void RunTestInstance(Dynarmic::A32::Jit& jit,
+                     TestEnv& jit_env,
+                     const std::array<u32, 16>& regs,
+                     const std::array<u32, 64>& vecs,
+                     const std::vector<typename TestEnv::InstructionType>& instructions,
+                     const u32 cpsr,
+                     const u32 fpscr,
+                     const size_t ticks_left) {
+    const u32 initial_pc = regs[15];
+    const u32 num_words = initial_pc / sizeof(typename TestEnv::InstructionType);
+    const u32 code_mem_size = num_words + static_cast<u32>(instructions.size());
+
+    jit.ClearCache();
+
+    for (size_t jit_rerun_count = 0; jit_rerun_count < num_jit_reruns; ++jit_rerun_count) {
+        jit_env.code_mem.resize(code_mem_size);
+        std::fill(jit_env.code_mem.begin(), jit_env.code_mem.end(), TestEnv::infinite_loop);
+
+        std::copy(instructions.begin(), instructions.end(), jit_env.code_mem.begin() + num_words);
+        jit_env.PadCodeMem();
+        jit_env.modified_memory.clear();
+        jit_env.interrupts.clear();
+
+        jit.Regs() = regs;
+        jit.ExtRegs() = vecs;
+        jit.SetFpscr(fpscr);
+        jit.SetCpsr(cpsr);
+
+        jit_env.ticks_left = ticks_left;
+        jit.Run();
+    }
+
+    fmt::print("instructions:");
+    for (auto instruction : instructions) {
+        if constexpr (sizeof(decltype(instruction)) == 2) {
+            fmt::print(" {:04x}", instruction);
+        } else {
+            fmt::print(" {:08x}", instruction);
+        }
+    }
+    fmt::print("\n");
+
+    fmt::print("initial_regs:");
+    for (u32 i : regs) {
+        fmt::print(" {:08x}", i);
+    }
+    fmt::print("\n");
+    fmt::print("initial_vecs:");
+    for (u32 i : vecs) {
+        fmt::print(" {:08x}", i);
+    }
+    fmt::print("\n");
+    fmt::print("initial_cpsr: {:08x}\n", cpsr);
+    fmt::print("initial_fpcr: {:08x}\n", fpscr);
+
+    fmt::print("final_regs:");
+    for (u32 i : jit.Regs()) {
+        fmt::print(" {:08x}", i);
+    }
+    fmt::print("\n");
+    fmt::print("final_vecs:");
+    for (u32 i : jit.ExtRegs()) {
+        fmt::print(" {:08x}", i);
+    }
+    fmt::print("\n");
+    fmt::print("final_cpsr: {:08x}\n", jit.Cpsr());
+    fmt::print("final_fpsr: {:08x}\n", mask_fpsr_cum_bits ? jit.Fpscr() & 0xffffff00 : jit.Fpscr());
+
+    fmt::print("mod_mem: ");
+    for (auto [addr, value] : jit_env.modified_memory) {
+        fmt::print("{:08x}:{:02x} ", addr, value);
+    }
+    fmt::print("\n");
+
+    fmt::print("interrupts:\n");
+    for (const auto& i : jit_env.interrupts) {
+        std::puts(i.c_str());
+    }
+
+    fmt::print("===\n");
+}
+
+A64::UserConfig GetA64UserConfig(A64TestEnv& jit_env, bool noopt) {
+    A64::UserConfig jit_user_config{&jit_env};
+    jit_user_config.optimizations &= ~OptimizationFlag::FastDispatch;
+    // The below corresponds to the settings for qemu's aarch64_max_initfn
+    jit_user_config.dczid_el0 = 7;
+    jit_user_config.ctr_el0 = 0x80038003;
+    jit_user_config.very_verbose_debugging_output = true;
+    if (noopt) {
+        jit_user_config.optimizations = no_optimizations;
+    }
+    return jit_user_config;
+}
+
+template<size_t num_jit_reruns = 1>
+void RunTestInstance(A64::Jit& jit,
+                     A64TestEnv& jit_env,
+                     const std::array<u64, 31>& regs,
+                     const std::array<std::array<u64, 2>, 32>& vecs,
+                     const std::vector<u32>& instructions,
+                     const u32 pstate,
+                     const u32 fpcr,
+                     const u64 initial_sp,
+                     const u64 start_address,
+                     const size_t ticks_left) {
+    jit.ClearCache();
+
+    for (size_t jit_rerun_count = 0; jit_rerun_count < num_jit_reruns; ++jit_rerun_count) {
+        jit_env.code_mem = instructions;
+        jit_env.code_mem.emplace_back(0x14000000);  // B .
+        jit_env.code_mem_start_address = start_address;
+        jit_env.modified_memory.clear();
+        jit_env.interrupts.clear();
+
+        jit.SetRegisters(regs);
+        jit.SetVectors(vecs);
+        jit.SetPC(start_address);
+        jit.SetSP(initial_sp);
+        jit.SetFpcr(fpcr);
+        jit.SetFpsr(0);
+        jit.SetPstate(pstate);
+        jit.ClearCache();
+
+        jit_env.ticks_left = ticks_left;
+        jit.Run();
+    }
+
+    fmt::print("instructions:");
+    for (u32 instruction : instructions) {
+        fmt::print(" {:08x}", instruction);
+    }
+    fmt::print("\n");
+
+    fmt::print("initial_regs:");
+    for (u64 i : regs) {
+        fmt::print(" {:016x}", i);
+    }
+    fmt::print("\n");
+    fmt::print("initial_vecs:");
+    for (auto i : vecs) {
+        fmt::print(" {:016x}:{:016x}", i[0], i[1]);
+    }
+    fmt::print("\n");
+    fmt::print("initial_sp: {:016x}\n", initial_sp);
+    fmt::print("initial_pstate: {:08x}\n", pstate);
+    fmt::print("initial_fpcr: {:08x}\n", fpcr);
+
+    fmt::print("final_regs:");
+    for (u64 i : jit.GetRegisters()) {
+        fmt::print(" {:016x}", i);
+    }
+    fmt::print("\n");
+    fmt::print("final_vecs:");
+    for (auto i : jit.GetVectors()) {
+        fmt::print(" {:016x}:{:016x}", i[0], i[1]);
+    }
+    fmt::print("\n");
+    fmt::print("final_sp: {:016x}\n", jit.GetSP());
+    fmt::print("final_pc: {:016x}\n", jit.GetPC());
+    fmt::print("final_pstate: {:08x}\n", jit.GetPstate());
+    fmt::print("final_fpcr: {:08x}\n", jit.GetFpcr());
+    fmt::print("final_qc : {}\n", FP::FPSR{jit.GetFpsr()}.QC());
+
+    fmt::print("mod_mem:");
+    for (auto [addr, value] : jit_env.modified_memory) {
+        fmt::print(" {:08x}:{:02x}", addr, value);
+    }
+    fmt::print("\n");
+
+    fmt::print("interrupts:\n");
+    for (const auto& i : jit_env.interrupts) {
+        std::puts(i.c_str());
+    }
+
+    fmt::print("===\n");
+}
+
+void RunThumb(bool noopt) {
+    std::array<u32, 16> initial_regs{};
+    std::array<u32, 64> initial_vecs{};
+    std::vector<u16> instructions{};
+    u32 initial_cpsr = 0;
+    u32 initial_fpcr = 0;
+
+    std::string line;
+    while (std::getline(std::cin, line)) {
+        std::string_view sv{line};
+
+        if (sv.starts_with("instructions:")) {
+            SkipHeader(sv);
+            while (!sv.empty()) {
+                instructions.emplace_back((u16)ParseHex(NextToken(sv)));
+            }
+        } else if (sv.starts_with("initial_regs:")) {
+            SkipHeader(sv);
+            for (size_t i = 0; i < initial_regs.size(); ++i) {
+                initial_regs[i] = (u32)ParseHex(NextToken(sv));
+            }
+        } else if (sv.starts_with("initial_vecs:")) {
+            SkipHeader(sv);
+            for (size_t i = 0; i < initial_vecs.size(); ++i) {
+                initial_vecs[i] = (u32)ParseHex(NextToken(sv));
+            }
+        } else if (sv.starts_with("initial_cpsr:")) {
+            SkipHeader(sv);
+            initial_cpsr = (u32)ParseHex(NextToken(sv));
+        } else if (sv.starts_with("initial_fpcr:")) {
+            SkipHeader(sv);
+            initial_fpcr = (u32)ParseHex(NextToken(sv));
+        }
+    }
+
+    ThumbTestEnv jit_env{};
+    A32::Jit jit{GetA32UserConfig(jit_env, noopt)};
+    RunTestInstance(jit,
+                    jit_env,
+                    initial_regs,
+                    initial_vecs,
+                    instructions,
+                    initial_cpsr,
+                    initial_fpcr,
+                    instructions.size());
+}
+
+void RunArm(bool noopt) {
+    std::array<u32, 16> initial_regs{};
+    std::array<u32, 64> initial_vecs{};
+    std::vector<u32> instructions{};
+    u32 initial_cpsr = 0;
+    u32 initial_fpcr = 0;
+
+    std::string line;
+    while (std::getline(std::cin, line)) {
+        std::string_view sv{line};
+
+        if (sv.starts_with("instructions:")) {
+            SkipHeader(sv);
+            while (!sv.empty()) {
+                instructions.emplace_back((u32)ParseHex(NextToken(sv)));
+            }
+        } else if (sv.starts_with("initial_regs:")) {
+            SkipHeader(sv);
+            for (size_t i = 0; i < initial_regs.size(); ++i) {
+                initial_regs[i] = (u32)ParseHex(NextToken(sv));
+            }
+        } else if (sv.starts_with("initial_vecs:")) {
+            SkipHeader(sv);
+            for (size_t i = 0; i < initial_vecs.size(); ++i) {
+                initial_vecs[i] = (u32)ParseHex(NextToken(sv));
+            }
+        } else if (sv.starts_with("initial_cpsr:")) {
+            SkipHeader(sv);
+            initial_cpsr = (u32)ParseHex(NextToken(sv));
+        } else if (sv.starts_with("initial_fpcr:")) {
+            SkipHeader(sv);
+            initial_fpcr = (u32)ParseHex(NextToken(sv));
+        }
+    }
+
+    ArmTestEnv jit_env{};
+    A32::Jit jit{GetA32UserConfig(jit_env, noopt)};
+    RunTestInstance(jit,
+                    jit_env,
+                    initial_regs,
+                    initial_vecs,
+                    instructions,
+                    initial_cpsr,
+                    initial_fpcr,
+                    instructions.size());
+}
+
+void RunA64(bool noopt) {
+    std::array<u64, 31> initial_regs{};
+    std::array<std::array<u64, 2>, 32> initial_vecs{};
+    std::vector<u32> instructions{};
+    u32 initial_pstate = 0;
+    u32 initial_fpcr = 0;
+    u64 initial_sp = 0;
+    u64 start_address = 100;
+
+    std::string line;
+    while (std::getline(std::cin, line)) {
+        std::string_view sv{line};
+
+        if (sv.starts_with("instructions:")) {
+            SkipHeader(sv);
+            while (!sv.empty()) {
+                instructions.emplace_back((u32)ParseHex(NextToken(sv)));
+            }
+        } else if (sv.starts_with("initial_regs:")) {
+            SkipHeader(sv);
+            for (size_t i = 0; i < initial_regs.size(); ++i) {
+                initial_regs[i] = ParseHex(NextToken(sv));
+            }
+        } else if (sv.starts_with("initial_vecs:")) {
+            SkipHeader(sv);
+            for (size_t i = 0; i < initial_vecs.size(); ++i) {
+                auto tok{NextToken(sv)};
+                initial_vecs[i][0] = ParseHex(tok);
+                tok.remove_prefix(tok.find_first_of(':') + 1);
+                initial_vecs[i][1] = ParseHex(tok);
+            }
+        } else if (sv.starts_with("initial_sp:")) {
+            SkipHeader(sv);
+            initial_sp = ParseHex(NextToken(sv));
+        } else if (sv.starts_with("initial_pstate:")) {
+            SkipHeader(sv);
+            initial_pstate = (u32)ParseHex(NextToken(sv));
+        } else if (sv.starts_with("initial_fpcr:")) {
+            SkipHeader(sv);
+            initial_fpcr = (u32)ParseHex(NextToken(sv));
+        }
+    }
+
+    A64TestEnv jit_env{};
+    A64::Jit jit{GetA64UserConfig(jit_env, noopt)};
+    RunTestInstance(jit,
+                    jit_env,
+                    initial_regs,
+                    initial_vecs,
+                    instructions,
+                    initial_pstate,
+                    initial_fpcr,
+                    initial_sp,
+                    start_address,
+                    instructions.size());
+}
+
+int main(int argc, char** argv) {
+    if (argc < 2 || argc > 3) {
+        fmt::print("Usage: {} <thumb|arm|a64> [noopt]\n", argv[0]);
+        return 1;
+    }
+
+    const bool noopt = argc == 3 && (strcmp(argv[2], "noopt") == 0);
+
+    if (strcmp(argv[1], "thumb") == 0) {
+        RunThumb(noopt);
+    } else if (strcmp(argv[1], "arm") == 0) {
+        RunArm(noopt);
+    } else if (strcmp(argv[1], "a64") == 0) {
+        RunA64(noopt);
+    } else {
+        fmt::print("unrecognized instruction class\n");
+        return 1;
+    }
+
+    return 0;
+}