suyu/dynarmic
26
1
Fork 1
Code Issues Pull requests Projects Releases Packages Wiki Activity

backend/arm64/a64_address_space: Avoid use of stack in Emit*Read128CallTrampoline

Browse source
This commit is contained in:
Merry 2022-12-10 23:51:42 +00:00
parent e88c89ff47
commit 59fc92ee6e
1 changed files with 12 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
src/dynarmic/backend/arm64/a64_address_space.cpp
View file

@ -163,13 +163,13 @@ static void* EmitRead128CallTrampoline(oaknut::CodeGenerator& code, A64::UserCal
oaknut::Label l_addr, l_this;
void* target = code.ptr<void*>();
ABI_PushRegisters(code, (1ull << 29) | (1ull << 30), sizeof(Vector));
ABI_PushRegisters(code, (1ull << 29) | (1ull << 30), 0);
code.LDR(X0, l_this);
code.LDR(Xscratch0, l_addr);
code.BLR(Xscratch0);
code.STP(X0, X1, SP);
code.LDR(Q0, SP);
ABI_PopRegisters(code, (1ull << 29) | (1ull << 30), sizeof(Vector));
code.FMOV(D0, X0);
code.FMOV(V0.D()[1], X1);
ABI_PopRegisters(code, (1ull << 29) | (1ull << 30), 0);
code.RET();
code.align(8);
@ -191,14 +191,14 @@ static void* EmitWrappedRead128CallTrampoline(oaknut::CodeGenerator& code, A64::
constexpr u64 save_regs = ABI_CALLER_SAVE & ~ToRegList(Q0);
void* target = code.ptr<void*>();
ABI_PushRegisters(code, save_regs, sizeof(Vector));
ABI_PushRegisters(code, save_regs, 0);
code.LDR(X0, l_this);
code.LDR(X1, Xscratch0);
code.LDR(Xscratch0, l_addr);
code.BLR(Xscratch0);
code.STP(X0, X1, SP);
code.LDR(Q0, SP);
ABI_PopRegisters(code, save_regs, sizeof(Vector));
code.FMOV(D0, X0);
code.FMOV(V0.D()[1], X1);
ABI_PopRegisters(code, save_regs, 0);
code.RET();
code.align(8);
@ -222,13 +222,13 @@ static void* EmitExclusiveRead128CallTrampoline(oaknut::CodeGenerator& code, con
};
void* target = code.ptr<void*>();
ABI_PushRegisters(code, (1ull << 29) | (1ull << 30), sizeof(Vector));
ABI_PushRegisters(code, (1ull << 29) | (1ull << 30), 0);
code.LDR(X0, l_this);
code.LDR(Xscratch0, l_addr);
code.BLR(Xscratch0);
code.STP(X0, X1, SP);
code.LDR(Q0, SP);
ABI_PopRegisters(code, (1ull << 29) | (1ull << 30), sizeof(Vector));
code.FMOV(D0, X0);
code.FMOV(V0.D()[1], X1);
ABI_PopRegisters(code, (1ull << 29) | (1ull << 30), 0);
code.RET();
code.align(8);