| /** | |
| * This file has no copyright assigned and is placed in the Public Domain. | |
| * This file is part of the mingw-w64 runtime package. | |
| * No warranty is given; refer to the file DISCLAIMER.PD within this package. | |
| */ | |
| #include <_mingw_mac.h> | |
| .file "floor.S" | |
| .text | |
| .p2align 4,,15 | |
| .globl __MINGW_USYMBOL(floor) | |
| .def __MINGW_USYMBOL(floor); .scl 2; .type 32; .endef | |
| #ifdef __x86_64__ | |
| .seh_proc __MINGW_USYMBOL(floor) | |
| #endif | |
| __MINGW_USYMBOL(floor): | |
| #if defined(_AMD64_) || defined(__x86_64__) | |
| pushq %rbx | |
| .seh_pushreg %rbx | |
| subq $16, %rsp | |
| .seh_stackalloc 16 | |
| .seh_endprologue | |
| movsd %xmm0, 8(%rsp) | |
| movq 8(%rsp), %r9 | |
| movq %r9, %rdx | |
| movl %r9d, %r10d | |
| shrq $32, %rdx | |
| movl %edx, %eax | |
| movl %edx, %r11d | |
| sarl $20, %eax | |
| andl $2047, %eax | |
| leal -1023(%rax), %r8d | |
| cmpl $51, %r8d | |
| jle .L2 | |
| cmpl $1024, %r8d | |
| je .L27 | |
| .L3: | |
| addq $16, %rsp | |
| popq %rbx | |
| ret | |
| .p2align 4,,10 | |
| .L2: | |
| cmpl $19, %r8d | |
| jg .L4 | |
| testl %r8d, %r8d | |
| js .L28 | |
| movl $1048575, %eax | |
| movl %r8d, %ecx | |
| shrl %cl, %eax | |
| testl %r9d, %r9d | |
| jne .L8 | |
| testl %edx, %eax | |
| je .L3 | |
| .L8: | |
| movsd .hugeval(%rip), %xmm1 | |
| xorpd %xmm2, %xmm2 | |
| addsd %xmm0, %xmm1 | |
| ucomisd %xmm1, %xmm2 | |
| jae .L3 | |
| xorl %r9d, %r9d | |
| testl %edx, %edx | |
| jns .L9 | |
| movl $1048576, %r9d | |
| movl %r8d, %ecx | |
| sarl %cl, %r9d | |
| .L9: | |
| addl %r9d, %edx | |
| notl %eax | |
| andl %edx, %eax | |
| salq $32, %rax | |
| movq %rax, 8(%rsp) | |
| movsd 8(%rsp), %xmm0 | |
| addq $16, %rsp | |
| popq %rbx | |
| ret | |
| .p2align 4,,10 | |
| .L4: | |
| leal -1043(%rax), %ecx | |
| movl $-1, %ebx | |
| shrl %cl, %ebx | |
| testl %r9d, %ebx | |
| je .L3 | |
| movsd .hugeval(%rip), %xmm1 | |
| xorpd %xmm2, %xmm2 | |
| addsd %xmm0, %xmm1 | |
| ucomisd %xmm1, %xmm2 | |
| jae .L3 | |
| testl %edx, %edx | |
| js .L29 | |
| .L11: | |
| notl %ebx | |
| salq $32, %r11 | |
| andl %ebx, %r10d | |
| orq %r10, %r11 | |
| movq %r11, 8(%rsp) | |
| movsd 8(%rsp), %xmm0 | |
| addq $16, %rsp | |
| popq %rbx | |
| ret | |
| .p2align 4,,10 | |
| .L27: | |
| addsd %xmm0, %xmm0 | |
| addq $16, %rsp | |
| popq %rbx | |
| ret | |
| .p2align 4,,10 | |
| .L28: | |
| movsd .hugeval(%rip), %xmm2 | |
| xorpd %xmm1, %xmm1 | |
| addsd %xmm0, %xmm2 | |
| ucomisd %xmm1, %xmm2 | |
| jbe .L3 | |
| testl %edx, %edx | |
| js .L7 | |
| movapd %xmm1, %xmm0 | |
| jmp .L3 | |
| .p2align 4,,10 | |
| .L7: | |
| andl $2147483647, %edx | |
| orl %r9d, %edx | |
| je .L3 | |
| movabsq $-4616189618054758400, %rax | |
| movq %rax, 8(%rsp) | |
| movsd 8(%rsp), %xmm0 | |
| jmp .L3 | |
| .p2align 4,,10 | |
| .L29: | |
| cmpl $20, %r8d | |
| je .L25 | |
| movl $1075, %ecx | |
| movl $1, %r10d | |
| subl %eax, %ecx | |
| sall %cl, %r10d | |
| addl %r9d, %r10d | |
| jae .L11 | |
| .L25: | |
| leal 1(%rdx), %r11d | |
| jmp .L11 | |
| .seh_endproc | |
| .section .rdata,"dr" | |
| .align 8 | |
| .hugeval: | |
| .long -2013235812 | |
| .long 2117592124 | |
| #elif defined(_X86_) || defined(__i386__) | |
| fldl 4(%esp) | |
| subl $8,%esp | |
| fstcw 4(%esp) /* store fpu control word */ | |
| /* We use here %edx although only the low 1 bits are defined. | |
| But none of the operations should care and they are faster | |
| than the 16 bit operations. */ | |
| movl $0x400,%edx /* round towards -oo */ | |
| orl 4(%esp),%edx | |
| andl $0xf7ff,%edx | |
| movl %edx,(%esp) | |
| fldcw (%esp) /* load modified control word */ | |
| frndint /* round */ | |
| fldcw 4(%esp) /* restore original control word */ | |
| addl $8,%esp | |
| ret | |
| #endif |