mirrors/dynarmic
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

backend/x64: Move save_host_MXCSR from JitState to stack

Browse source
This commit is contained in:
MerryMage 2021-05-04 14:19:05 +01:00
parent ddbc50cee0
commit a1950d1d2f
5 changed files with 4 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
src/backend/x64/a32_jitstate.h
View file

@ -42,7 +42,6 @@ struct A32JitState {
// For internal use (See: BlockOfCode::RunCode)
u32 guest_MXCSR = 0x00001f80;
u32 asimd_MXCSR = 0x00009fc0;
u32 save_host_MXCSR = 0;
s64 cycles_to_run = 0;
s64 cycles_remaining = 0;
bool halt_requested = false;

1
src/backend/x64/a64_jitstate.h
View file

@ -45,7 +45,6 @@ struct A64JitState {
// For internal use (See: BlockOfCode::RunCode)
u32 guest_MXCSR = 0x00001f80;
u32 asimd_MXCSR = 0x00009fc0;
u32 save_host_MXCSR = 0;
s64 cycles_to_run = 0;
s64 cycles_remaining = 0;
bool halt_requested = false;

4
src/backend/x64/block_of_code.cpp
View file

@ -230,13 +230,13 @@ void BlockOfCode::GenRunCode(std::function<void(BlockOfCode&)> rcp) {
}
void BlockOfCode::SwitchMxcsrOnEntry() {
stmxcsr(dword[r15 + jsi.offsetof_save_host_MXCSR]);
stmxcsr(dword[rsp + ABI_SHADOW_SPACE + offsetof(StackLayout, save_host_MXCSR)]);
ldmxcsr(dword[r15 + jsi.offsetof_guest_MXCSR]);
}
void BlockOfCode::SwitchMxcsrOnExit() {
stmxcsr(dword[r15 + jsi.offsetof_guest_MXCSR]);
ldmxcsr(dword[r15 + jsi.offsetof_save_host_MXCSR]);
ldmxcsr(dword[rsp + ABI_SHADOW_SPACE + offsetof(StackLayout, save_host_MXCSR)]);
}
void BlockOfCode::EnterStandardASIMD() {

2
src/backend/x64/jitstate_info.h
View file

@ -14,7 +14,6 @@ struct JitStateInfo {
JitStateInfo(const JitStateType&)
: offsetof_cycles_remaining(offsetof(JitStateType, cycles_remaining))
, offsetof_cycles_to_run(offsetof(JitStateType, cycles_to_run))
, offsetof_save_host_MXCSR(offsetof(JitStateType, save_host_MXCSR))
, offsetof_guest_MXCSR(offsetof(JitStateType, guest_MXCSR))
, offsetof_asimd_MXCSR(offsetof(JitStateType, asimd_MXCSR))
, offsetof_rsb_ptr(offsetof(JitStateType, rsb_ptr))
@ -28,7 +27,6 @@ struct JitStateInfo {
const size_t offsetof_cycles_remaining;
const size_t offsetof_cycles_to_run;
const size_t offsetof_save_host_MXCSR;
const size_t offsetof_guest_MXCSR;
const size_t offsetof_asimd_MXCSR;
const size_t offsetof_rsb_ptr;

2
src/backend/x64/stack_layout.h
View file

@ -15,6 +15,8 @@ constexpr size_t SpillCount = 64;
struct alignas(16) StackLayout {
std::array<std::array<u64, 2>, SpillCount> spill;
u32 save_host_MXCSR;
};
static_assert(sizeof(StackLayout) % 16 == 0);