2: not %edi
sub $32,%rsp
fnstenv (%rsp)
and %edi,4(%rsp)
or %esi,4(%rsp)
fldenv (%rsp)
stmxcsr (%rsp)
and %edi,(%rsp)
ldmxcsr (%rsp)
add $32,%rsp
ret
.global feclearexcept
feclearexcept:
xor %eax,%eax
xor %esi,%esi
test %edi,%edi
jnz 2b
ret
.global feraiseexcept
feraiseexcept:
xor %eax,%eax
mov %edi,%esi
xor %edi,%edi
test %esi,%esi
jnz 2b
ret
.global fesetround
fesetround:
xor %eax,%eax
sub $32,%rsp
fnstenv (%rsp)
andb $0xf3,1(%rsp)
or %edi,(%rsp)
fldenv (%rsp)
stmxcsr (%rsp)
shl $3,%edi
andb $0x9f,1(%rsp)
or %edi,(%rsp)
ldmxcsr (%rsp)
add $32,%rsp
ret
.global fegetround
fegetround:
push %rax
stmxcsr (%rsp)
pop %rax
shr $3,%eax
and $0xc,%ah
ret
.global fegetenv
fegetenv:
xor %eax,%eax
fnstenv (%rdi)
stmxcsr 28(%rdi)
ret
.global fesetenv
fesetenv:
xor %eax,%eax
inc %rdi
jz 1f
fldenv -1(%rdi)
ldmxcsr 27(%rdi)
ret
1: push %rax
push %rax
push %rax
pushq $0x37f
fldenv (%rsp)
pushq $0x1f80
ldmxcsr (%rsp)
add $40,%rsp
ret
.global fetestexcept
fetestexcept:
push %rax
stmxcsr (%rsp)
pop %rsi
fnstsw %ax
or %esi,%eax
and %edi,%eax
ret
