1/* 2 * Based on code written by J.T. Conklin <jtc@NetBSD.org>. 3 * Public domain. 4 */ 5 6#include <machine/asm.h> 7ENTRY(truncf) 8 pushl %ebp 9 movl %esp,%ebp 10 subl $8,%esp 11 12 fstcw -4(%ebp) /* store fpu control word */ 13 movw -4(%ebp),%dx 14 orw $0x0c00,%dx /* round towards -oo */ 15 movw %dx,-8(%ebp) 16 fldcw -8(%ebp) /* load modified control word */ 17 18 flds 8(%ebp) /* round */ 19 frndint 20 21 fldcw -4(%ebp) /* restore original control word */ 22 23 leave 24 ret 25END(truncf) 26 27 .section .note.GNU-stack,"",%progbits 28