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constant_pool: Implement a constant pool

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This commit is contained in:
MerryMage 2017-03-18 17:20:21 +00:00
parent b1b8acf16e
commit d9c69ad997
6 changed files with 129 additions and 135 deletions
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57
src/backend_x64/block_of_code.cpp
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@ -18,8 +18,7 @@
namespace Dynarmic {
namespace BackendX64 {
BlockOfCode::BlockOfCode(UserCallbacks cb) : Xbyak::CodeGenerator(128 * 1024 * 1024), cb(cb) {
GenConstants();
BlockOfCode::BlockOfCode(UserCallbacks cb) : Xbyak::CodeGenerator(128 * 1024 * 1024), cb(cb), constant_pool(this, 256) {
GenRunCode();
GenReturnFromRunCode();
GenMemoryAccessors();
@ -44,56 +43,6 @@ void BlockOfCode::ReturnFromRunCode(bool MXCSR_switch) {
jmp(MXCSR_switch ? return_from_run_code : return_from_run_code_without_mxcsr_switch);
}
void BlockOfCode::GenConstants() {
align();
L(consts.FloatNegativeZero32);
dd(0x80000000u);
align();
L(consts.FloatNaN32);
dd(0x7fc00000u);
align();
L(consts.FloatNonSignMask32);
dq(0x7fffffffu);
align();
L(consts.FloatNegativeZero64);
dq(0x8000000000000000u);
align();
L(consts.FloatNaN64);
dq(0x7ff8000000000000u);
align();
L(consts.FloatNonSignMask64);
dq(0x7fffffffffffffffu);
align();
L(consts.FloatPenultimatePositiveDenormal64);
dq(0x000ffffffffffffeu);
align();
L(consts.FloatMinS32);
dq(0xc1e0000000000000u); // -2147483648 as a double
align();
L(consts.FloatMaxS32);
dq(0x41dfffffffc00000u); // 2147483647 as a double
align();
L(consts.FloatPositiveZero32);
L(consts.FloatPositiveZero64);
L(consts.FloatMinU32);
dq(0x0000000000000000u); // 0 as a double
align();
L(consts.FloatMaxU32);
dq(0x41efffffffe00000u); // 4294967295 as a double
align();
}
void BlockOfCode::GenRunCode() {
align();
run_code = getCurr<RunCodeFuncType>();
@ -188,6 +137,10 @@ void BlockOfCode::SwitchMxcsrOnExit() {
ldmxcsr(dword[r15 + offsetof(JitState, save_host_MXCSR)]);
}
Xbyak::Address BlockOfCode::MConst(u64 constant) {
return constant_pool.GetConstant(constant);
}
void BlockOfCode::nop(size_t size) {
switch (size) {
case 0: