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Proper implementation of Arm::Translate

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This commit is contained in:
MerryMage 2016-07-04 21:37:50 +08:00
parent d743adf518
commit 14388ea690
29 changed files with 276 additions and 90 deletions
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74
tests/arm/test_thumb_instructions.cpp
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@ -6,54 +6,56 @@
#include <catch.hpp>
#include "backend_x64/emit_x64.h"
#include "common/common_types.h"
#include "frontend/decoder/thumb1.h"
#include "frontend/translate_thumb.h"
#include "interface/interface.h"
struct TinyBlockOfCode : Gen::XCodeBlock {
TinyBlockOfCode() {
AllocCodeSpace(256);
std::array<u32, 1024> code_mem{};
u32 MemoryRead32(u32 vaddr) {
if (vaddr < code_mem.size() * sizeof(u32)) {
return code_mem[vaddr / sizeof(u32)];
}
};
return vaddr;
}
void RunSingleThumbInstruction(u16 thumb_instruction, Dynarmic::BackendX64::JitState* jit_state_ptr) {
Dynarmic::Arm::TranslatorVisitor visitor;
auto decoder = Dynarmic::Arm::DecodeThumb1<Dynarmic::Arm::TranslatorVisitor>(thumb_instruction);
REQUIRE(!!decoder);
decoder->call(visitor, thumb_instruction);
TinyBlockOfCode block_of_code;
Dynarmic::BackendX64::Routines routines;
Dynarmic::UserCallbacks callbacks{};
Dynarmic::BackendX64::EmitX64 emitter(&block_of_code, &routines, callbacks);
Dynarmic::BackendX64::CodePtr code = emitter.Emit({0, true, false}, visitor.ir.block);
routines.RunCode(jit_state_ptr, code, 1);
Dynarmic::UserCallbacks GetUserCallbacks() {
Dynarmic::UserCallbacks user_callbacks{};
user_callbacks.MemoryRead32 = &MemoryRead32;
return user_callbacks;
}
TEST_CASE( "thumb: lsls r0, r1, #2", "[thumb]" ) {
Dynarmic::BackendX64::JitState jit_state;
jit_state.Reg[0] = 1;
jit_state.Reg[1] = 2;
jit_state.Cpsr = 0;
Dynarmic::Jit jit{GetUserCallbacks()};
code_mem.fill({});
code_mem[0] = 0x0088; // lsls r0, r1, #2
code_mem[1] = 0xDE00; // udf #0
RunSingleThumbInstruction(0x0088, &jit_state);
jit.Regs()[0] = 1;
jit.Regs()[1] = 2;
jit.Regs()[15] = 0; // PC = 0
jit.Cpsr() = 0x00000030; // Thumb, User-mode
REQUIRE( jit_state.Reg[0] == 8 );
REQUIRE( jit_state.Reg[1] == 2 );
REQUIRE( jit_state.Cpsr == 0 );
jit.Run(1);
REQUIRE( jit.Regs()[0] == 8 );
REQUIRE( jit.Regs()[1] == 2 );
REQUIRE( jit.Cpsr() == 0x00000030 );
}
TEST_CASE( "thumb: lsls r0, r1, #31", "[thumb]" ) {
Dynarmic::BackendX64::JitState jit_state;
jit_state.Reg[0] = 1;
jit_state.Reg[1] = 0xFFFFFFFF;
jit_state.Cpsr = 0;
Dynarmic::Jit jit{GetUserCallbacks()};
code_mem.fill({});
code_mem[0] = 0x07C8; // lsls r0, r1, #31
code_mem[1] = 0xDE00; // udf #0
RunSingleThumbInstruction(0x07C8, &jit_state);
jit.Regs()[0] = 1;
jit.Regs()[1] = 0xFFFFFFFF;
jit.Regs()[15] = 0; // PC = 0
jit.Cpsr() = 0x00000030; // Thumb, User-mode
REQUIRE( jit_state.Reg[0] == 0x80000000 );
REQUIRE( jit_state.Reg[1] == 0xffffffff );
REQUIRE( jit_state.Cpsr == 0x20000000 );
jit.Run(1);
REQUIRE( jit.Regs()[0] == 0x80000000 );
REQUIRE( jit.Regs()[1] == 0xffffffff );
REQUIRE( jit.Cpsr() == 0x20000030 ); // C flag, Thumb, User-mode
}