RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 05:37:34 +00:00
Code Issues Activity Actions

UserspaceEmulator: Raise an error on FPU stack underflow

Browse source 
Accessing an unset part of the FPU stack should not be a simple warning,
but should trigger the FPU exception mechanism.
This commit is contained in:
Hendiadyoin1 2021-07-23 14:22:19 +02:00 • committed by Linus Groh
parent 0d6d780183
commit 83f50a1507
3 changed files with 6 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

5
Userland/DevTools/UserspaceEmulator/SoftFPU.h
View file

@ -48,7 +48,7 @@ public:
ALWAYS_INLINE void set_c2(bool val) { m_fpu_c2 = val; }
ALWAYS_INLINE void set_c3(bool val) { m_fpu_c3 = val; }
long double fpu_get(u8 index) const;
long double fpu_get(u8 index);
void fpu_push(long double value);
long double fpu_pop();
@ -246,7 +246,7 @@ private:
set_tag_from_value_absolute((m_fpu_stack_top + index) % 8, val);
}
ALWAYS_INLINE bool fpu_isnan(u8 index) const
ALWAYS_INLINE bool fpu_isnan(u8 index)
{
return isnan(fpu_get(index));
}
@ -279,7 +279,6 @@ private:
}
void warn_if_mmx_absolute(u8 index) const;
void warn_if_fpu_absolute(u8 index) const;
void warn_if_fpu_not_set_absolute(u8 index) const;
void mmx_common() { m_fpu_tw = 0; }