| .file "ceill.S" | |
| .code64 | |
| .text | |
| .align 4 | |
| .globl _ceill | |
| .def _ceill; .scl 2; .type 32; .endef | |
| _ceill: | |
| fldt 8(%rsp) | |
| subq $16,%rsp | |
| fstcw 8(%rsp) /* store fpu control word */ | |
| /* We use here %rdx although only the low 1 bits are defined. | |
| But none of the operations should care and they are faster | |
| than the 16 bit operations. */ | |
| movq $0x0800,%rdx /* round towards +oo */ | |
| orq 8(%rsp),%rdx | |
| andq $0xfbff,%rdx | |
| movq %rdx,(%rsp) | |
| fldcw (%rsp) /* load modified control word */ | |
| frndint /* round */ | |
| fldcw 8(%rsp) /* restore original control word */ | |
| addq $16,%rsp | |
| ret |