dd3ffeb9cb
Adds `platform_arm64` similar to `platform_arm64` to populate a 64-bit feature-flag value and creates a `a64_extension_mask` configuration-mask for the detection and utilization of certain arm ISA features. The first feature being `FEAT_LSE` which maps to `XBYAK_AARCH64_HWCAP_ATOMIC`. Just like the x64 backend, implements `IsFeatureEnabled` to the emitter for checking if the host processor supports a certain subset of feature flag(s) at once. Optimizes `OPCODE_ATOMIC_EXCHANGE`, `OPCODE_ATOMIC_COMPARE_EXCHANGE`, and `OPCODE_RESERVED_STORE` with `FEAT_LSE` instructions.
30 lines
834 B
C++
30 lines
834 B
C++
/**
|
|
******************************************************************************
|
|
* Xenia : Xbox 360 Emulator Research Project *
|
|
******************************************************************************
|
|
* Copyright 2026 Ben Vanik. All rights reserved. *
|
|
* Released under the BSD license - see LICENSE in the root for more details. *
|
|
******************************************************************************
|
|
*/
|
|
|
|
#ifndef XENIA_BASE_PLATFORM_ARM64_H_
|
|
#define XENIA_BASE_PLATFORM_ARM64_H_
|
|
#include <cstdint>
|
|
|
|
namespace xe {
|
|
namespace arm64 {
|
|
enum A64FeatureFlags : uint64_t {
|
|
kA64EmitLSE = 1 << 0,
|
|
|
|
};
|
|
|
|
XE_NOALIAS
|
|
uint64_t GetFeatureFlags();
|
|
XE_COLD
|
|
void InitFeatureFlags();
|
|
|
|
} // namespace arm64
|
|
} // namespace xe
|
|
|
|
#endif // XENIA_BASE_PLATFORM_ARM64_H_
|