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LibC: Don't handle pending exceptions when reading FPU status

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This commit is contained in:
Tim Schumacher 2022-04-24 23:15:19 +02:00 • committed by Andreas Kling
parent 5847d326c3
commit 8eb886f069
1 changed files with 3 additions and 3 deletions
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6
Userland/Libraries/LibC/fenv.cpp
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@ -13,7 +13,7 @@ static_assert(sizeof(__x87_floating_point_environment) == 28);
static u16 read_status_register() static u16 read_status_register()
{ {
u16 status_register; u16 status_register;
asm volatile("fstsw %0" asm volatile("fnstsw %0"
: "=m"(status_register)); : "=m"(status_register));
return status_register; return status_register;
} }
@ -21,7 +21,7 @@ static u16 read_status_register()
static u16 read_control_word() static u16 read_control_word()
{ {
u16 control_word; u16 control_word;
asm volatile("fstcw %0" asm volatile("fnstcw %0"
: "=m"(control_word)); : "=m"(control_word));
return control_word; return control_word;
} }
@ -53,7 +53,7 @@ int fegetenv(fenv_t* env)
if (!env) if (!env)
return 1; return 1;
asm volatile("fstenv %0" asm volatile("fnstenv %0"
: "=m"(env->__x87_fpu_env)::"memory"); : "=m"(env->__x87_fpu_env)::"memory");
env->__mxcsr = read_mxcsr(); env->__mxcsr = read_mxcsr();