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a32_emit_x64: Use r14 for page_table pointer

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This commit is contained in:
MerryMage 2020-04-08 14:01:41 +01:00
parent 49fcfe040c
commit ad52c997f4
5 changed files with 47 additions and 17 deletions
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15
src/backend/x64/a32_interface.cpp
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@ -4,6 +4,7 @@
* General Public License version 2 or any later version.
*/
#include <functional>
#include <memory>
#include <boost/icl/interval_set.hpp>
@ -19,6 +20,7 @@
#include "backend/x64/devirtualize.h"
#include "backend/x64/jitstate_info.h"
#include "common/assert.h"
#include "common/cast_util.h"
#include "common/common_types.h"
#include "common/llvm_disassemble.h"
#include "common/scope_exit.h"
@ -39,9 +41,20 @@ static RunCodeCallbacks GenRunCodeCallbacks(A32::UserCallbacks* cb, CodePtr (*Lo
};
}
static std::function<void(BlockOfCode&)> GenRCP(const A32::UserConfig& config) {
if (!config.page_table) {
return [](BlockOfCode&){};
}
const u64 r14_value = Common::BitCast<u64>(config.page_table);
return [r14_value](BlockOfCode& code) {
code.mov(code.r14, r14_value);
};
}
struct Jit::Impl {
Impl(Jit* jit, A32::UserConfig config)
: block_of_code(GenRunCodeCallbacks(config.callbacks, &GetCurrentBlockThunk, this), JitStateInfo{jit_state})
: block_of_code(GenRunCodeCallbacks(config.callbacks, &GetCurrentBlockThunk, this), JitStateInfo{jit_state}, GenRCP(config))
, emitter(block_of_code, config, jit)
, config(std::move(config))
, jit_interface(jit)