| /** |
| * 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 |
