--- np2/x11/soundmng.c	2003/11/28 16:31:08	1.4
+++ np2/x11/soundmng.c	2005/03/12 12:36:13	1.9
@@ -10,8 +10,6 @@
  * 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. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
@@ -94,7 +92,7 @@ static BOOL nosound_setup(void);
 
 static void PARTSCALL (*fnmix)(SINT16* dst, const SINT32* src, UINT size);
 
-#if defined(__GNUC__) && (defined(i386) || defined(__i386__))
+#if defined(GCC_CPU_ARCH_IA32)
 void PARTSCALL _saturation_s16(SINT16 *dst, const SINT32 *src, UINT size);
 void PARTSCALL _saturation_s16x(SINT16 *dst, const SINT32 *src, UINT size);
 void PARTSCALL saturation_s16mmx(SINT16 *dst, const SINT32 *src, UINT size);
@@ -141,7 +139,7 @@ calc_fragment(UINT size)
 	return f;
 }
 
-void
+static void
 snddrv_setup(void)
 {
 
@@ -349,7 +347,17 @@ void
 soundmng_setreverse(BOOL reverse)
 {
 
-#if defined(__GNUC__) && (defined(i386) || defined(__i386__))
+#if defined(GCC_CPU_ARCH_AMD64)
+	if (!reverse) {
+		if (mmxflag & (MMXFLAG_NOTSUPPORT|MMXFLAG_DISABLE)) {
+			fnmix = satuation_s16;
+		} else {
+			fnmix = saturation_s16mmx;
+		}
+	} else {
+		fnmix = satuation_s16x;
+	}
+#elif defined(GCC_CPU_ARCH_IA32)
 	if (!reverse) {
 		if (mmxflag & (MMXFLAG_NOTSUPPORT|MMXFLAG_DISABLE)) {
 			fnmix = _saturation_s16;
@@ -646,7 +654,107 @@ snddrv_stop(void)
 
 #endif	/* USE_NETBSDAUDIO || USE_OSSAUDIO || USE_ESDAUDIO */
 
-#if defined(__GNUC__) && (defined(i386) || defined(__i386__))
+#if defined(GCC_CPU_ARCH_AMD64)
+void PARTSCALL
+_saturation_s16(SINT16 *dst, const SINT32 *src, UINT size)
+{
+	asm volatile (
+		"movq	%0, %%rcx;"
+		"movq	%1, %%rdx;"
+		"movl	%2, %%ebx;"
+		"shrl	$1, %%ebx;"
+		"je	.ss16_ed;"
+	".ss16_lp:"
+		"movl	(%%rdx), %%eax;"
+		"cmpl	$0x000008000, %%eax;"
+		"jl	.ss16_min;"
+		"movw	$0x7fff, %%ax;"
+		"jmp	.ss16_set;"
+	".ss16_min:"
+		"cmpl	$0x0ffff8000, %%eax;"
+		"jg	.ss16_set;"
+		"movw	$0x8001, %%ax;"
+	".ss16_set:"
+		"leal	4(%%rdx), %%edx;"
+		"movw	%%ax, (%%rcx);"
+		"decl	%%ebx;"
+		"leal	2(%%rcx), %%ecx;"
+		"jne	.ss16_lp;"
+	".ss16_ed:"
+		: /* output */
+		: "m" (dst), "m" (src), "m" (size)
+		: "ebx");
+}
+
+void PARTSCALL
+_saturation_s16x(SINT16 *dst, const SINT32 *src, UINT size)
+{
+
+	asm volatile (
+		"movq	%0, %%rcx;"
+		"movq	%1, %%rdx;"
+		"movl	%2, %%ebx;"
+		"shrl	$2, %%ebx;"
+		"je	.ss16x_ed;"
+	".ss16x_lp:"
+		"movl	(%%rdx), %%eax;"
+		"cmpl	$0x000008000, %%eax;"
+		"jl	.ss16xl_min;"
+		"movw	$0x7fff, %%ax;"
+		"jmp	.ss16xl_set;"
+	".ss16xl_min:"
+		"cmpl	$0x0ffff8000, %%eax;"
+		"jg	.ss16xl_set;"
+		"movw	$0x8001, %%ax;"
+	".ss16xl_set:"
+		"movw	%%ax, 2(%%rcx);"
+		"movl	4(%%rdx), %%eax;"
+		"cmpl	$0x000008000, %%eax;"
+		"jl	.ss16xr_min;"
+		"movw	$0x7fff, %%ax;"
+		"jmp	.ss16xr_set;"
+	".ss16xr_min:"
+		"cmpl	$0x0ffff8000, %%eax;"
+		"jg	.ss16xr_set;"
+		"mov	$0x8001, %%ax;"
+	".ss16xr_set:"
+		"movw	%%ax, (%%rcx);"
+		"leal	8(%%rdx), %%edx;"
+		"decl	%%ebx;"
+		"leal	4(%%rcx), %%ecx;"
+		"jne	.ss16x_lp;"
+	".ss16x_ed:"
+		: /* output */
+		: "m" (dst), "m" (src), "m" (size)
+		: "ebx");
+}
+
+void PARTSCALL
+saturation_s16mmx(SINT16 *dst, const SINT32 *src, UINT size)
+{
+
+	asm volatile (
+		"movq	%0, %%rcx;"
+		"movq	%1, %%rdx;"
+		"movl	%2, %%eax;"
+		"shrl	$3, %%eax;"
+		"je	.ss16m_ed;"
+		"pxor	%%mm0, %%mm0;"
+	".ss16m_lp:"
+		"movq	(%%rdx), %%mm1;"
+		"movq	8(%%rdx), %%mm2;"
+		"packssdw %%mm2, %%mm1;"
+		"leaq	16(%%rdx), %%rdx;"
+		"movq	%%mm1, (%%rcx);"
+		"leaq	8(%%rcx), %%rcx;"
+		"dec	%%eax;"
+		"jne	.ss16m_lp;"
+		"emms;"
+	".ss16m_ed:"
+		: /* output */
+		: "m" (dst), "m" (src), "m" (size));
+}
+#elif defined(GCC_CPU_ARCH_IA32)
 void PARTSCALL
 _saturation_s16(SINT16 *dst, const SINT32 *src, UINT size)
 {
@@ -746,6 +854,6 @@ saturation_s16mmx(SINT16 *dst, const SIN
 		: /* output */
 		: "m" (dst), "m" (src), "m" (size));
 }
-#endif	/* __GNUC__ && (i386 || __i386__) */
+#endif	/* GCC_CPU_ARCH_AMD64 */
 
 #endif	/* !NOSOUND */