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BizHawk
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add in fenv guards for ares64 

should prevent issues in case a game decides to change rounding mode (unlikely in practice)
This commit is contained in:
CasualPokePlayer 2023-08-10 20:01:21 -07:00
parent 2e75645cbd
commit eefbe7bf62
3 changed files with 52 additions and 1 deletions
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Assets/dll/ares64_interpreter.wbx.zst
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Assets/dll/ares64_recompiler.wbx.zst
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53
waterbox/ares64/BizInterface.cpp
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@ -3,6 +3,49 @@
#include <emulibc.h>
#include <waterboxcore.h>
struct CallinFenvGuard {
nall::float_env saved_fenv;
nall::float_env& fenv;
CallinFenvGuard(float_env& fenv_) : fenv(fenv_)
{
if (fenv.getRound() != saved_fenv.getRound())
{
fenv.setRound(fenv.getRound());
}
}
~CallinFenvGuard()
{
if (fenv.getRound() != saved_fenv.getRound())
{
saved_fenv.setRound(saved_fenv.getRound());
}
}
};
struct CallbackFenvGuard {
nall::float_env& saved_fenv;
CallbackFenvGuard(float_env& saved_fenv_) : saved_fenv(saved_fenv_)
{
nall::float_env cur_fenv;
if (cur_fenv.getRound() != nall::float_env::toNearest)
{
cur_fenv.setRound(nall::float_env::toNearest);
}
}
~CallbackFenvGuard()
{
nall::float_env cur_fenv;
if (cur_fenv.getRound() != saved_fenv.getRound())
{
saved_fenv.setRound(saved_fenv.getRound());
}
}
};
typedef enum
{
Unplugged,
@ -80,7 +123,11 @@ auto BizPlatform::input(ares::Node::Input::Input node) -> void
if (input->name() == "Start" || input->name() == "Left Click")
{
lagged = false;
if (inputcb) inputcb();
if (inputcb)
{
CallbackFenvGuard guard(ares::Nintendo64::cpu.fenv);
inputcb();
}
}
}
}
@ -480,6 +527,8 @@ namespace angrylion
ECL_EXPORT bool Init(LoadData* loadData, ControllerType* controllers, bool isPal, u64 initTime)
{
CallinFenvGuard guard(ares::Nintendo64::cpu.fenv);
platform = new BizPlatform;
platform->bizpak = new vfs::directory;
ares::platform = platform;
@ -802,6 +851,8 @@ struct MyFrameInfo : public FrameInfo
ECL_EXPORT void FrameAdvance(MyFrameInfo* f)
{
CallinFenvGuard guard(ares::Nintendo64::cpu.fenv);
ares::Nintendo64::BobDeinterlace = f->BobDeinterlace;
ares::Nintendo64::FastVI = f->FastVI;