/** | |
* This file has no copyright assigned and is placed in the Public Domain. | |
* This file is part of the w64 mingw-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 _WIN64 | |
.seh_proc __MINGW_USYMBOL(trunc) | |
#endif | |
__MINGW_USYMBOL(trunc): | |
#ifdef _WIN64 | |
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 | |
#else | |
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 |