Re: [Qemu-devel] qemu exec-all.h host-utils.c host-utils.h targe...
On Sun, 2007-11-04 at 02:24 +, Jocelyn Mayer wrote:
> CVSROOT: /sources/qemu
> Module name: qemu
> Changes by: Jocelyn Mayer 07/11/04 02:24:58
>
> Modified files:
> . : exec-all.h host-utils.c host-utils.h
> target-alpha : op.c
> target-i386: helper.c
>
> Log message:
> For consistency, move muls64 / mulu64 prototypes to host-utils.h
> Make x86_64 optimized versions inline.
Following this patch, I also got optimized versions of muls64 / mulu64 /
clz64 for PowerPC 64 and clz32 for PowerPC 32 hosts.
Seems like it could be useful...
--
J. Mayer <[EMAIL PROTECTED]>
Never organized
Index: host-utils.h
===
RCS file: /sources/qemu/qemu/host-utils.h,v
retrieving revision 1.3
diff -u -d -d -p -r1.3 host-utils.h
--- host-utils.h 4 Nov 2007 02:24:57 - 1.3
+++ host-utils.h 4 Nov 2007 02:26:34 -
@@ -40,6 +40,25 @@ static always_inline void muls64 (uint64
: "=d" (*phigh), "=a" (*plow)
: "a" (a), "0" (b));
}
+#elif defined(__powerpc64__)
+#define __HAVE_FAST_MULU64__
+static always_inline void mulu64 (uint64_t *plow, uint64_t *phigh,
+ uint64_t a, uint64_t b)
+{
+__asm__ ("mulld %1, %2, %3 \n\t"
+ "mulhdu %0, %2, %3 \n\t"
+ : "=r"(*phigh), "=r"(*plow)
+ : "r"(a), "r"(b));
+}
+#define __HAVE_FAST_MULS64__
+static always_inline void muls64 (uint64_t *plow, uint64_t *phigh,
+ uint64_t a, uint64_t b)
+{
+__asm__ ("mulld %1, %2, %3 \n\t"
+ "mulhd %0, %2, %3 \n\t"
+ : "=r"(*phigh), "=r"(*plow)
+ : "r"(a), "r"(b));
+}
#else
void muls64(int64_t *phigh, int64_t *plow, int64_t a, int64_t b);
void mulu64(uint64_t *phigh, uint64_t *plow, uint64_t a, uint64_t b);
@@ -50,7 +69,19 @@ void mulu64(uint64_t *phigh, uint64_t *p
cope with that. */
/* Binary search for leading zeros. */
+#if defined(__powerpc__)
+#define __HAVE_FAST_CLZ32__
+static always_inline int clz32 (uint32_t val)
+{
+int cnt;
+
+__asm__ ("cntlzw %0, %1 \n\t"
+ : "=r"(cnt)
+ : "r"(val));
+return cnt;
+}
+#else
static always_inline int clz32(uint32_t val)
{
int cnt = 0;
@@ -80,12 +111,26 @@ static always_inline int clz32(uint32_t
}
return cnt;
}
+#endif
static always_inline int clo32(uint32_t val)
{
return clz32(~val);
}
+#if defined(__powerpc64__)
+#define __HAVE_FAST_CLZ64__
+static always_inline int clz64 (uint32_t val)
+{
+int cnt;
+
+__asm__ ("cntlzd %0, %1 \n\t"
+ : "=r"(cnt)
+ : "r"(val));
+
+return cnt;
+}
+#else
static always_inline int clz64(uint64_t val)
{
int cnt = 0;
@@ -98,6 +143,7 @@ static always_inline int clz64(uint64_t
return cnt + clz32(val);
}
+#endif
static always_inline int clo64(uint64_t val)
{
Re: [Qemu-devel] qemu exec-all.h kqemu.c vl.c
Please add "if (kqemu_fd)" before the CancelIo call in kqemu.c, otherwise the call will fail every time for non-KQEMU case (which can slow down things a bit). - Filip Fabrice Bellard wrote: CVSROOT:/cvsroot/qemu Module name:qemu Branch: Changes by: Fabrice Bellard <[EMAIL PROTECTED]> 05/09/03 17:55:47 Modified files: . : exec-all.h kqemu.c vl.c Log message: kqemu_cpu_interrupt support for win32 (Filip Navara) CVSWeb URLs: http://savannah.gnu.org/cgi-bin/viewcvs/qemu/qemu/exec-all.h.diff?tr1=1.36&tr2=1.37&r1=text&r2=text http://savannah.gnu.org/cgi-bin/viewcvs/qemu/qemu/kqemu.c.diff?tr1=1.7&tr2=1.8&r1=text&r2=text http://savannah.gnu.org/cgi-bin/viewcvs/qemu/qemu/vl.c.diff?tr1=1.134&tr2=1.135&r1=text&r2=text ___ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel ___ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
Re: [Qemu-devel] qemu exec-all.h
Ozan Türkyılmaz wrote: i have a request cound you put cvs checkouts to another maling list ? Ozan Türkyılmaz, do you have any idea what you're actually talking about?? I'd suggest that you first find out #0) who Fabrice Bellard is and #1) what he is doing here! On 21/08/05, Fabrice Bellard <[EMAIL PROTECTED]> wrote: CVSROOT:/cvsroot/qemu Module name:qemu Branch: Changes by: Fabrice Bellard <[EMAIL PROTECTED]> 05/08/21 09:37:35 ___ Qemu-devel mailing list [EMAIL PROTECTED] http://lists.nongnu.org/mailman/listinfo/qemu-devel
Re: [Qemu-devel] qemu exec-all.h
Hi, On Sun, 21 Aug 2005, Ozan Türky?lmaz wrote: > i have a request > cound you put cvs checkouts to another maling list ? I veto that. I find it highly informative what patches Fabrice applied, and it has a high relevance to the name of the list. Ciao, Dscho___ Qemu-devel mailing list [EMAIL PROTECTED] http://lists.nongnu.org/mailman/listinfo/qemu-devel
Re: [Qemu-devel] qemu exec-all.h
i have a request cound you put cvs checkouts to another maling list ? On 21/08/05, Fabrice Bellard <[EMAIL PROTECTED]> wrote: > CVSROOT:/cvsroot/qemu > Module name:qemu > Branch: > Changes by: Fabrice Bellard <[EMAIL PROTECTED]> 05/08/21 09:37:35 > > Modified files: > . : exec-all.h > > Log message: > added kqemu_set_notdirty() > > CVSWeb URLs: > http://savannah.gnu.org/cgi-bin/viewcvs/qemu/qemu/exec-all.h.diff?tr1=1.34&tr2=1.35&r1=text&r2=text > > > > ___ > Qemu-devel mailing list > Qemu-devel@nongnu.org > http://lists.nongnu.org/mailman/listinfo/qemu-devel > -- Ozan ___ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
Re: [Qemu-devel] qemu exec-all.h
How much is it useful? is it a good enough solution to install win9x with kqemu? Thanks, Hetz > Modified files: > . : exec-all.h > > Log message: > temporary work around for 16 bit code in kqemu ___ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
