tanya/arch/x64/linux/math/abs.S
Eugen Wissner 2ec750ca05 Fix math.nbtheory linkage to asm
Don't use extern for templated functions. If the function argument is
const, it gets a different mangling. So define a private function for
each floatint point length and call it from template.
2018-05-08 18:07:42 +02:00

36 lines
766 B
ArmAsm

.text
// fabsf.
.globl _D5tanya4math8nbtheory4fabsFNaNbNiNffZf
.type _D5tanya4math8nbtheory4fabsFNaNbNiNffZf, @function
_D5tanya4math8nbtheory4fabsFNaNbNiNffZf:
mov $0x7fffffff, %eax
movq %rax, %xmm1
andpd %xmm1, %xmm0
ret
// fabs.
.globl _D5tanya4math8nbtheory4fabsFNaNbNiNfdZd
.type _D5tanya4math8nbtheory4fabsFNaNbNiNfdZd, @function
_D5tanya4math8nbtheory4fabsFNaNbNiNfdZd:
mov $0x7fffffffffffffff, %rax
movq %rax, %xmm1
andpd %xmm1, %xmm0
ret
// fabsl.
.globl _D5tanya4math8nbtheory4fabsFNaNbNiNfeZe
.type _D5tanya4math8nbtheory4fabsFNaNbNiNfeZe, @function
// Load the parameter from the stack onto FP stack, execute 'fabs' instruction
// The result is returned in ST0.
_D5tanya4math8nbtheory4fabsFNaNbNiNfeZe:
fldt 0x8(%rsp)
fabs
ret