| /** | |
| * 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 "trunc.S" | |
| .text | |
| .p2align 4,,15 | |
| .globl __MINGW_USYMBOL(trunc) | |
| .def __MINGW_USYMBOL(trunc); .scl 2; .type 32; .endef | |
| #ifdef __x86_64__ | |
| .seh_proc __MINGW_USYMBOL(trunc) | |
| #endif | |
| __MINGW_USYMBOL(trunc): | |
| #if defined(_AMD64_) || defined(__x86_64__) | |
| subq $24, %rsp | |
| .seh_stackalloc 24 | |
| .seh_endprologue | |
| movsd %xmm0, 8(%rsp) | |
| movq 8(%rsp), %r8 | |
| movq %r8, %rdx | |
| shrq $32, %rdx | |
| movl %edx, %eax | |
| sarl $20, %eax | |
| andl $2047, %eax | |
| leal -1023(%rax), %ecx | |
| cmpl $19, %ecx | |
| jg .l1 | |
| movl %edx, %r8d | |
| andl $-2147483648, %r8d | |
| testl %ecx, %ecx | |
| js .l3 | |
| movl $1048575, %eax | |
| sarl %cl, %eax | |
| notl %eax | |
| andl %edx, %eax | |
| orl %r8d, %eax | |
| salq $32, %rax | |
| movq %rax, 8(%rsp) | |
| movsd 8(%rsp), %xmm0 | |
| addq $24, %rsp | |
| ret | |
| .p2align 4,,10 | |
| .l1: | |
| cmpl $51, %ecx | |
| jle .l2 | |
| /* Is x inf/nan? */ | |
| cmpl $1024, %ecx | |
| jne .noinfnan | |
| addsd %xmm0, %xmm0 | |
| .noinfnan: | |
| addq $24, %rsp | |
| ret | |
| .p2align 4,,10 | |
| .l2: | |
| leal -1043(%rax), %ecx | |
| movl $-1, %r9d | |
| salq $32, %rdx | |
| shrl %cl, %r9d | |
| notl %r9d | |
| andl %r9d, %r8d | |
| orq %r8, %rdx | |
| movq %rdx, 8(%rsp) | |
| movsd 8(%rsp), %xmm0 | |
| addq $24, %rsp | |
| ret | |
| .p2align 4,,10 | |
| .l3: | |
| salq $32, %r8 | |
| movq %r8, 8(%rsp) | |
| movsd 8(%rsp), %xmm0 | |
| addq $24, %rsp | |
| ret | |
| .seh_endproc | |
| #elif defined(_X86_) || defined(__i386__) | |
| fldl 4(%esp) | |
| subl $8, %esp | |
| fstcw (%esp) | |
| /* FE_TOWARDZERO */ | |
| movzwl (%esp), %eax | |
| orb $0xc, %ah | |
| movw %ax, 4(%esp) | |
| fldcw 4(%esp) | |
| frndint | |
| fldcw (%esp) | |
| addl $8, %esp | |
| ret | |
| #endif |