diff --git a/kernel/x86_64/KERNEL b/kernel/x86_64/KERNEL
index 9d0080ae7..3508753ee 100644
--- a/kernel/x86_64/KERNEL
+++ b/kernel/x86_64/KERNEL
@@ -377,7 +377,7 @@ SGEMVNKERNEL = sgemv_n.c
 endif
 
 ifndef SGEMVTKERNEL
-SGEMVTKERNEL = ../arm/gemv_t.c
+SGEMVTKERNEL = sgemv_t.c
 endif
 
 ifndef DGEMVNKERNEL
diff --git a/kernel/x86_64/KERNEL.BULLDOZER b/kernel/x86_64/KERNEL.BULLDOZER
index 21fc94701..accdddf0e 100644
--- a/kernel/x86_64/KERNEL.BULLDOZER
+++ b/kernel/x86_64/KERNEL.BULLDOZER
@@ -3,7 +3,7 @@ SGEMVNKERNEL = sgemv_n.c
 SGEMVTKERNEL = ../arm/gemv_t.c
 else
 SGEMVNKERNEL = sgemv_n.c
-SGEMVTKERNEL = sgemv_t_avx.c
+SGEMVTKERNEL = sgemv_t.c
 endif
 
 
diff --git a/kernel/x86_64/KERNEL.HASWELL b/kernel/x86_64/KERNEL.HASWELL
index 3e20fcfc7..878a56b04 100644
--- a/kernel/x86_64/KERNEL.HASWELL
+++ b/kernel/x86_64/KERNEL.HASWELL
@@ -3,7 +3,7 @@ SGEMVNKERNEL = sgemv_n.c
 SGEMVTKERNEL = ../arm/gemv_t.c
 else
 SGEMVNKERNEL = sgemv_n.c
-SGEMVTKERNEL = sgemv_t_avx.c
+SGEMVTKERNEL = sgemv_t.c
 endif
 
 
diff --git a/kernel/x86_64/KERNEL.NEHALEM b/kernel/x86_64/KERNEL.NEHALEM
index 04efa391a..8276150c6 100644
--- a/kernel/x86_64/KERNEL.NEHALEM
+++ b/kernel/x86_64/KERNEL.NEHALEM
@@ -3,7 +3,7 @@ SGEMVNKERNEL = sgemv_n.c
 SGEMVTKERNEL = ../arm/gemv_t.c
 else
 SGEMVNKERNEL = sgemv_n.c
-SGEMVTKERNEL = ../arm/gemv_t.c
+SGEMVTKERNEL = sgemv_t.c
 endif
 
 
diff --git a/kernel/x86_64/KERNEL.PILEDRIVER b/kernel/x86_64/KERNEL.PILEDRIVER
index b7565edeb..7b3c9a7b8 100644
--- a/kernel/x86_64/KERNEL.PILEDRIVER
+++ b/kernel/x86_64/KERNEL.PILEDRIVER
@@ -3,7 +3,7 @@ SGEMVNKERNEL = sgemv_n.c
 SGEMVTKERNEL = ../arm/gemv_t.c
 else
 SGEMVNKERNEL = sgemv_n.c
-SGEMVTKERNEL = sgemv_t_avx.c
+SGEMVTKERNEL = sgemv_t.c
 endif
 
 
diff --git a/kernel/x86_64/KERNEL.SANDYBRIDGE b/kernel/x86_64/KERNEL.SANDYBRIDGE
index 9dae3a41d..26706b61d 100644
--- a/kernel/x86_64/KERNEL.SANDYBRIDGE
+++ b/kernel/x86_64/KERNEL.SANDYBRIDGE
@@ -3,7 +3,7 @@ SGEMVNKERNEL = sgemv_n.c
 SGEMVTKERNEL = ../arm/gemv_t.c
 else
 SGEMVNKERNEL = sgemv_n.c
-SGEMVTKERNEL = sgemv_t_avx.c
+SGEMVTKERNEL = sgemv_t.c
 endif
 
 
diff --git a/kernel/x86_64/sgemv_t.c b/kernel/x86_64/sgemv_t.c
new file mode 100644
index 000000000..89254c256
--- /dev/null
+++ b/kernel/x86_64/sgemv_t.c
@@ -0,0 +1,200 @@
+/***************************************************************************
+Copyright (c) 2014, The OpenBLAS Project
+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. Neither the name of the OpenBLAS project 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 COPYRIGHT HOLDERS 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 OPENBLAS PROJECT 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.
+*****************************************************************************/
+
+
+#include "common.h"
+
+#if defined(BULLDOZER) || defined(PILEDRIVER)
+#include "sgemv_t_microk_bulldozer-2.c"
+#endif
+
+/*
+#if defined(BULLDOZER) || defined(PILEDRIVER)
+#include "sgemv_n_microk_bulldozer-2.c"
+#elif defined(HASWELL)
+#include "sgemv_n_microk_haswell-2.c"
+#elif defined(SANDYBRIDGE)
+#include "sgemv_n_microk_sandy-2.c"
+#elif defined(NEHALEM)
+#include "sgemv_n_microk_nehalem-2.c"
+#endif
+*/
+
+#define NBMAX 4096
+
+#ifndef HAVE_KERNEL_16x4
+
+static void sgemv_kernel_16x4(BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y)
+{
+	BLASLONG i;
+	FLOAT *a0,*a1,*a2,*a3;
+	a0 = ap[0];
+	a1 = ap[1];
+	a2 = ap[2];
+	a3 = ap[3];
+	FLOAT temp0 = 0.0;
+	FLOAT temp1 = 0.0;
+	FLOAT temp2 = 0.0;
+	FLOAT temp3 = 0.0;
+
+	for ( i=0; i< n; i+=4 )
+	{
+		temp0 += a0[i]*x[i] + a0[i+1]*x[i+1] + a0[i+2]*x[i+2] + a0[i+3]*x[i+3];		
+		temp1 += a1[i]*x[i] + a1[i+1]*x[i+1] + a1[i+2]*x[i+2] + a1[i+3]*x[i+3];		
+		temp2 += a2[i]*x[i] + a2[i+1]*x[i+1] + a2[i+2]*x[i+2] + a2[i+3]*x[i+3];		
+		temp3 += a3[i]*x[i] + a3[i+1]*x[i+1] + a3[i+2]*x[i+2] + a3[i+3]*x[i+3];		
+	}
+	y[0] = temp0;
+	y[1] = temp1;
+	y[2] = temp2;
+	y[3] = temp3;
+}
+	
+#endif
+
+static void sgemv_kernel_16x1(BLASLONG n, FLOAT *ap, FLOAT *x, FLOAT *y)
+{
+	BLASLONG i;
+	FLOAT *a0;
+	a0 = ap;
+	FLOAT temp = 0.0;
+
+	for ( i=0; i< n; i+=4 )
+	{
+		temp += a0[i]*x[i] + a0[i+1]*x[i+1] + a0[i+2]*x[i+2] + a0[i+3]*x[i+3];		
+	}
+	*y = temp;
+}
+	
+static void copy_x(BLASLONG n, FLOAT *src, FLOAT *dest, BLASLONG inc_src)
+{
+        BLASLONG i;
+        for ( i=0; i<n; i++ )
+        {
+                *dest = *src;
+                dest++;
+                src += inc_src;
+        }
+}
+
+
+int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLONG lda, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *buffer)
+{
+	BLASLONG i;
+	BLASLONG j;
+	FLOAT *a_ptr;
+	FLOAT *x_ptr;
+	FLOAT *y_ptr;
+	FLOAT *ap[4];
+	BLASLONG n1;
+	BLASLONG m1;
+	BLASLONG m2;
+	BLASLONG n2;
+	FLOAT ybuffer[4],*xbuffer;
+
+	xbuffer = buffer;
+	
+	n1 = n / 4 ;
+	n2 = n % 4 ;
+	
+	m1 = m - ( m % 16 );
+	m2 = (m % NBMAX) - (m % 16) ;
+	
+
+	BLASLONG NB = NBMAX;
+
+	while ( NB == NBMAX )
+	{
+		
+		m1 -= NB;
+		if ( m1 < 0)
+		{
+			if ( m2 == 0 ) break;	
+			NB = m2;
+		}
+		
+		y_ptr = y;
+		a_ptr = a;
+		x_ptr = x;
+		copy_x(NB,x_ptr,xbuffer,inc_x);
+		for( i = 0; i < n1 ; i++)
+		{
+			ap[0] = a_ptr;
+			ap[1] = a_ptr + lda;
+			ap[2] = ap[1] + lda;
+			ap[3] = ap[2] + lda;
+			sgemv_kernel_16x4(NB,ap,xbuffer,ybuffer);
+			a_ptr += 4 * lda;
+			*y_ptr += ybuffer[0]*alpha;
+			y_ptr  += inc_y;
+			*y_ptr += ybuffer[1]*alpha;
+			y_ptr  += inc_y;
+			*y_ptr += ybuffer[2]*alpha;
+			y_ptr  += inc_y;
+			*y_ptr += ybuffer[3]*alpha;
+			y_ptr  += inc_y;
+		}
+
+		for( i = 0; i < n2 ; i++)
+		{
+			sgemv_kernel_16x1(NB,a_ptr,xbuffer,ybuffer);
+			a_ptr += 1 * lda;
+			*y_ptr += ybuffer[0]*alpha;
+			y_ptr  += inc_y;
+
+		}
+		a += NB;
+		x += NB * inc_x;	
+	}
+
+	BLASLONG m3 = m % 16;
+	if ( m3 == 0 ) return(0);
+	x_ptr = x;
+	for ( i=0; i< m3; i++ )
+	{
+		xbuffer[i] = *x_ptr;
+		x_ptr += inc_x;
+	}
+	j=0;
+	a_ptr = a;
+	y_ptr = y;
+	while ( j < n)
+	{
+		FLOAT temp = 0.0;
+		for( i = 0; i < m3; i++ )
+		{
+			temp += a_ptr[i] * xbuffer[i];
+		}
+		a_ptr += lda;
+		y_ptr[0] += alpha * temp;
+		y_ptr += inc_y;
+		j++;
+	}
+	return(0);
+}
+
+
diff --git a/kernel/x86_64/sgemv_t_microk_bulldozer-2.c b/kernel/x86_64/sgemv_t_microk_bulldozer-2.c
new file mode 100644
index 000000000..54bdca63a
--- /dev/null
+++ b/kernel/x86_64/sgemv_t_microk_bulldozer-2.c
@@ -0,0 +1,109 @@
+/***************************************************************************
+Copyright (c) 2014, The OpenBLAS Project
+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. Neither the name of the OpenBLAS project 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 COPYRIGHT HOLDERS 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 OPENBLAS PROJECT 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.
+*****************************************************************************/
+
+#define HAVE_KERNEL_16x4 1
+static void sgemv_kernel_16x4( BLASLONG n, float **ap, float *x, float *y) __attribute__ ((noinline));
+
+static void sgemv_kernel_16x4( BLASLONG n, float **ap, float *x, float *y)
+{
+
+	BLASLONG register i = 0;
+
+	__asm__  __volatile__
+	(
+	"vxorps		%%xmm4, %%xmm4, %%xmm4	 \n\t"
+	"vxorps		%%xmm5, %%xmm5, %%xmm5	 \n\t"
+	"vxorps		%%xmm6, %%xmm6, %%xmm6	 \n\t"
+	"vxorps		%%xmm7, %%xmm7, %%xmm7	 \n\t"
+
+	".align 16				 \n\t"
+	".L01LOOP%=:				 \n\t"
+        "vmovups        (%2,%0,4), %%xmm12       \n\t"  // 4 * x
+
+	"prefetcht0	 384(%4,%0,4)		       \n\t"
+	"vfmaddps %%xmm4,   (%4,%0,4), %%xmm12, %%xmm4 \n\t" 
+	"vfmaddps %%xmm5,   (%5,%0,4), %%xmm12, %%xmm5 \n\t" 
+        "vmovups      16(%2,%0,4), %%xmm13       \n\t"  // 4 * x
+	"vfmaddps %%xmm6,   (%6,%0,4), %%xmm12, %%xmm6 \n\t" 
+	"vfmaddps %%xmm7,   (%7,%0,4), %%xmm12, %%xmm7 \n\t" 
+	"prefetcht0	 384(%5,%0,4)		       \n\t"
+	"vfmaddps %%xmm4, 16(%4,%0,4), %%xmm13, %%xmm4 \n\t" 
+	"vfmaddps %%xmm5, 16(%5,%0,4), %%xmm13, %%xmm5 \n\t" 
+        "vmovups      32(%2,%0,4), %%xmm14       \n\t"  // 4 * x
+	"vfmaddps %%xmm6, 16(%6,%0,4), %%xmm13, %%xmm6 \n\t" 
+	"vfmaddps %%xmm7, 16(%7,%0,4), %%xmm13, %%xmm7 \n\t" 
+	"prefetcht0	 384(%6,%0,4)		       \n\t"
+	"vfmaddps %%xmm4, 32(%4,%0,4), %%xmm14, %%xmm4 \n\t" 
+	"vfmaddps %%xmm5, 32(%5,%0,4), %%xmm14, %%xmm5 \n\t" 
+        "vmovups      48(%2,%0,4), %%xmm15       \n\t"  // 4 * x
+	"vfmaddps %%xmm6, 32(%6,%0,4), %%xmm14, %%xmm6 \n\t" 
+	"vfmaddps %%xmm7, 32(%7,%0,4), %%xmm14, %%xmm7 \n\t" 
+	"prefetcht0	 384(%7,%0,4)		       \n\t"
+	"vfmaddps %%xmm4, 48(%4,%0,4), %%xmm15, %%xmm4 \n\t" 
+	"vfmaddps %%xmm5, 48(%5,%0,4), %%xmm15, %%xmm5 \n\t" 
+	"vfmaddps %%xmm6, 48(%6,%0,4), %%xmm15, %%xmm6 \n\t" 
+	"vfmaddps %%xmm7, 48(%7,%0,4), %%xmm15, %%xmm7 \n\t" 
+
+        "addq		$16, %0	  	 	      \n\t"
+	"subq	        $16, %1			      \n\t"		
+	"jnz		.L01LOOP%=		      \n\t"
+
+	"vhaddps        %%xmm4, %%xmm4, %%xmm4	\n\t"
+	"vhaddps        %%xmm5, %%xmm5, %%xmm5	\n\t"
+	"vhaddps        %%xmm6, %%xmm6, %%xmm6	\n\t"
+	"vhaddps        %%xmm7, %%xmm7, %%xmm7	\n\t"
+
+	"vhaddps        %%xmm4, %%xmm4, %%xmm4	\n\t"
+	"vhaddps        %%xmm5, %%xmm5, %%xmm5	\n\t"
+	"vhaddps        %%xmm6, %%xmm6, %%xmm6	\n\t"
+	"vhaddps        %%xmm7, %%xmm7, %%xmm7	\n\t"
+
+	"vmovss		%%xmm4,    (%3)		\n\t"
+	"vmovss		%%xmm5,   4(%3)		\n\t"
+	"vmovss		%%xmm6,   8(%3)		\n\t"
+	"vmovss		%%xmm7,  12(%3)		\n\t"
+
+	:
+        : 
+          "r" (i),	// 0	
+	  "r" (n),  	// 1
+          "r" (x),      // 2
+          "r" (y),      // 3
+          "r" (ap[0]),  // 4
+          "r" (ap[1]),  // 5
+          "r" (ap[2]),  // 6
+          "r" (ap[3])   // 7
+	: "cc", 
+	  "%xmm4", "%xmm5", 
+	  "%xmm6", "%xmm7", 
+	  "%xmm12", "%xmm13", "%xmm14", "%xmm15",
+	  "memory"
+	);
+
+} 
+
+