diff options
Diffstat (limited to 'lib/libc/amd64/gen')
-rw-r--r-- | lib/libc/amd64/gen/Makefile.inc | 6 | ||||
-rw-r--r-- | lib/libc/amd64/gen/_setjmp.S | 83 | ||||
-rw-r--r-- | lib/libc/amd64/gen/frexp.c | 67 | ||||
-rw-r--r-- | lib/libc/amd64/gen/infinity.c | 11 | ||||
-rw-r--r-- | lib/libc/amd64/gen/isinf.c | 68 | ||||
-rw-r--r-- | lib/libc/amd64/gen/ldexp.c | 74 | ||||
-rw-r--r-- | lib/libc/amd64/gen/setjmp.S | 103 | ||||
-rw-r--r-- | lib/libc/amd64/gen/sigsetjmp.S | 114 |
8 files changed, 526 insertions, 0 deletions
diff --git a/lib/libc/amd64/gen/Makefile.inc b/lib/libc/amd64/gen/Makefile.inc new file mode 100644 index 0000000..46fada9 --- /dev/null +++ b/lib/libc/amd64/gen/Makefile.inc @@ -0,0 +1,6 @@ +# @(#)Makefile.inc 8.1 (Berkeley) 6/4/93 +# $FreeBSD$ + +SRCS+= _ctx_start.S _setjmp.S alloca.S getcontext.S fabs.S frexp.c \ + infinity.c isinf.c ldexp.c makecontext.c modf.S \ + rfork_thread.S setjmp.S sigsetjmp.S swapcontext.c diff --git a/lib/libc/amd64/gen/_setjmp.S b/lib/libc/amd64/gen/_setjmp.S new file mode 100644 index 0000000..d2b7b6e --- /dev/null +++ b/lib/libc/amd64/gen/_setjmp.S @@ -0,0 +1,83 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) + .asciz "@(#)_setjmp.s 5.1 (Berkeley) 4/23/90" +#endif /* LIBC_SCCS and not lint */ +#include <machine/asm.h> +__FBSDID("$FreeBSD$"); + +/* + * C library -- _setjmp, _longjmp + * + * _longjmp(a,v) + * will generate a "return(v)" from the last call to + * _setjmp(a) + * by restoring registers from the environment 'a'. + * The previous signal state is NOT restored. + */ + +ENTRY(_setjmp) + movl 4(%esp),%eax + movl 0(%esp),%edx + movl %edx, 0(%eax) /* rta */ + movl %ebx, 4(%eax) + movl %esp, 8(%eax) + movl %ebp,12(%eax) + movl %esi,16(%eax) + movl %edi,20(%eax) + fnstcw 24(%eax) + xorl %eax,%eax + ret + + .weak CNAME(_longjmp) + .set CNAME(_longjmp),CNAME(___longjmp) +ENTRY(___longjmp) + movl 4(%esp),%edx + movl 8(%esp),%eax + movl 0(%edx),%ecx + movl 4(%edx),%ebx + movl 8(%edx),%esp + movl 12(%edx),%ebp + movl 16(%edx),%esi + movl 20(%edx),%edi + fninit + fldcw 24(%edx) + testl %eax,%eax + jnz 1f + incl %eax +1: movl %ecx,0(%esp) + ret diff --git a/lib/libc/amd64/gen/frexp.c b/lib/libc/amd64/gen/frexp.c new file mode 100644 index 0000000..37f6a57 --- /dev/null +++ b/lib/libc/amd64/gen/frexp.c @@ -0,0 +1,67 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)frexp.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/types.h> +#include <math.h> + +double +frexp(value, eptr) + double value; + int *eptr; +{ + union { + double v; + struct { + u_int u_mant2 : 32; + u_int u_mant1 : 20; + u_int u_exp : 11; + u_int u_sign : 1; + } s; + } u; + + if (value) { + u.v = value; + *eptr = u.s.u_exp - 1022; + u.s.u_exp = 1022; + return(u.v); + } else { + *eptr = 0; + return((double)0); + } +} diff --git a/lib/libc/amd64/gen/infinity.c b/lib/libc/amd64/gen/infinity.c new file mode 100644 index 0000000..966a06e --- /dev/null +++ b/lib/libc/amd64/gen/infinity.c @@ -0,0 +1,11 @@ +/* + * infinity.c + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <math.h> + +/* bytes for +Infinity on a 387 */ +char __infinity[] = { 0, 0, 0, 0, 0, 0, 0xf0, 0x7f }; diff --git a/lib/libc/amd64/gen/isinf.c b/lib/libc/amd64/gen/isinf.c new file mode 100644 index 0000000..e735cd4 --- /dev/null +++ b/lib/libc/amd64/gen/isinf.c @@ -0,0 +1,68 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)isinf.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/types.h> + +int +isnan(d) + double d; +{ + register struct IEEEdp { + u_int manl : 32; + u_int manh : 20; + u_int exp : 11; + u_int sign : 1; + } *p = (struct IEEEdp *)&d; + + return(p->exp == 2047 && (p->manh || p->manl)); +} + +int +isinf(d) + double d; +{ + register struct IEEEdp { + u_int manl : 32; + u_int manh : 20; + u_int exp : 11; + u_int sign : 1; + } *p = (struct IEEEdp *)&d; + + return(p->exp == 2047 && !p->manh && !p->manl); +} diff --git a/lib/libc/amd64/gen/ldexp.c b/lib/libc/amd64/gen/ldexp.c new file mode 100644 index 0000000..65c2748 --- /dev/null +++ b/lib/libc/amd64/gen/ldexp.c @@ -0,0 +1,74 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Sean Eric Fagan. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)ldexp.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +/* + * ldexp(value, exp): return value * (2 ** exp). + * + * Written by Sean Eric Fagan (sef@kithrup.COM) + * Sun Mar 11 20:27:09 PST 1990 + */ + +/* + * We do the conversion in C to let gcc optimize it away, if possible. + * The "fxch ; fstp" stuff is because value is still on the stack + * (stupid 8087!). + */ +double +ldexp (double value, int exp) +{ + double temp, texp, temp2; + texp = exp; +#ifdef __GNUC__ +#if __GNUC__ >= 2 + asm ("fscale " + : "=u" (temp2), "=t" (temp) + : "0" (texp), "1" (value)); +#else + asm ("fscale ; fxch %%st(1) ; fstp%L1 %1 " + : "=f" (temp), "=0" (temp2) + : "0" (texp), "f" (value)); +#endif +#else +error unknown asm +#endif + return (temp); +} diff --git a/lib/libc/amd64/gen/setjmp.S b/lib/libc/amd64/gen/setjmp.S new file mode 100644 index 0000000..f64c77f --- /dev/null +++ b/lib/libc/amd64/gen/setjmp.S @@ -0,0 +1,103 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) + .asciz "@(#)setjmp.s 5.1 (Berkeley) 4/23/90" +#endif /* LIBC_SCCS and not lint */ +#include <machine/asm.h> +__FBSDID("$FreeBSD$"); + +/* + * C library -- _setjmp, _longjmp + * + * longjmp(a,v) + * will generate a "return(v)" from the last call to + * setjmp(a) + * by restoring registers from the environment 'a'. + * The previous signal state is restored. + */ + +#include "SYS.h" + +ENTRY(setjmp) + movl 4(%esp),%ecx + PIC_PROLOGUE + leal 28(%ecx), %eax + pushl %eax /* (sigset_t*)oset */ + pushl $0 /* (sigset_t*)set */ + pushl $1 /* SIG_BLOCK */ + call PIC_PLT(CNAME(_sigprocmask)) + addl $12,%esp + PIC_EPILOGUE + movl 4(%esp),%ecx + movl 0(%esp),%edx + movl %edx, 0(%ecx) + movl %ebx, 4(%ecx) + movl %esp, 8(%ecx) + movl %ebp,12(%ecx) + movl %esi,16(%ecx) + movl %edi,20(%ecx) + fnstcw 24(%ecx) + xorl %eax,%eax + ret + + .weak CNAME(longjmp) + .set CNAME(longjmp),CNAME(__longjmp) +ENTRY(__longjmp) + movl 4(%esp),%edx + PIC_PROLOGUE + pushl $0 /* (sigset_t*)oset */ + leal 28(%edx), %eax + pushl %eax /* (sigset_t*)set */ + pushl $3 /* SIG_SETMASK */ + call PIC_PLT(CNAME(_sigprocmask)) + addl $12,%esp + PIC_EPILOGUE + movl 4(%esp),%edx + movl 8(%esp),%eax + movl 0(%edx),%ecx + movl 4(%edx),%ebx + movl 8(%edx),%esp + movl 12(%edx),%ebp + movl 16(%edx),%esi + movl 20(%edx),%edi + fninit + fldcw 24(%edx) + testl %eax,%eax + jnz 1f + incl %eax +1: movl %ecx,0(%esp) + ret diff --git a/lib/libc/amd64/gen/sigsetjmp.S b/lib/libc/amd64/gen/sigsetjmp.S new file mode 100644 index 0000000..09b512d --- /dev/null +++ b/lib/libc/amd64/gen/sigsetjmp.S @@ -0,0 +1,114 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)setjmp.s 5.1 (Berkeley) 4/23/90" + */ + +#if defined(LIBC_SCCS) && !defined(lint) + .text + .asciz "$Id: sigsetjmp.S,v 1.1 1993/12/05 13:01:05 ats Exp $" +#endif /* LIBC_SCCS and not lint */ +#include <machine/asm.h> +__FBSDID("$FreeBSD$"); + +#include "SYS.h" + +/*- + * TODO: + * Rename sigsetjmp to __sigsetjmp and siglongjmp to __siglongjmp, + * remove the other *jmp functions and define everything in terms + * of the renamed functions. This requires compiler support for + * the renamed functions (introduced in gcc-2.5.3; previous versions + * only supported *jmp with 0 or 1 leading underscores). + * + * Restore _all_ the registers and the signal mask atomically. Can + * use sigreturn() if sigreturn() works. + */ + +ENTRY(sigsetjmp) + movl 8(%esp),%eax + movl 4(%esp),%ecx + movl %eax,44(%ecx) + testl %eax,%eax + jz 2f + PIC_PROLOGUE + leal 28(%ecx), %eax + pushl %eax /* (sigset_t*)oset */ + pushl $0 /* (sigset_t*)set */ + pushl $1 /* SIG_BLOCK */ + call PIC_PLT(CNAME(_sigprocmask)) + addl $12,%esp + PIC_EPILOGUE + movl 4(%esp),%ecx +2: movl 0(%esp),%edx + movl %edx, 0(%ecx) + movl %ebx, 4(%ecx) + movl %esp, 8(%ecx) + movl %ebp,12(%ecx) + movl %esi,16(%ecx) + movl %edi,20(%ecx) + fnstcw 24(%ecx) + xorl %eax,%eax + ret + + .weak CNAME(siglongjmp); + .set CNAME(siglongjmp),CNAME(__siglongjmp); +ENTRY(__siglongjmp); + movl 4(%esp),%edx + cmpl $0,44(%edx) + jz 2f + PIC_PROLOGUE + pushl $0 /* (sigset_t*)oset */ + leal 28(%edx), %eax + pushl %eax /* (sigset_t*)set */ + pushl $3 /* SIG_SETMASK */ + call PIC_PLT(CNAME(_sigprocmask)) + addl $12,%esp + PIC_EPILOGUE + movl 4(%esp),%edx +2: movl 8(%esp),%eax + movl 0(%edx),%ecx + movl 4(%edx),%ebx + movl 8(%edx),%esp + movl 12(%edx),%ebp + movl 16(%edx),%esi + movl 20(%edx),%edi + fninit + fldcw 24(%edx) + testl %eax,%eax + jnz 1f + incl %eax +1: movl %ecx,0(%esp) + ret |