/*

   BLIS
   An object-based framework for developing high-performance BLAS-like
   libraries.

   Copyright (C) 2014, The University of Texas at Austin

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions are
   met:
    - Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    - 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.
    - Neither the name(s) of the copyright holder(s) 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 UNIVERSITY
   OF TEXAS 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 "blis.h"
#include <assert.h>


#define A_L1_PREFETCH_DIST 4
#define B_L1_PREFETCH_DIST 2
#define L2_PREFETCH_DIST  16 // Must be greater than 10, because of the way the loop is constructed.

//Alternate code path uused if C is not row-major
#define UPDATE_C_ROW_SCATTERED(REG1, NUM, BASE_DEST) \
{ \
        __asm kmov k3, ebx \
        __asm GATHER##NUM: \
            __asm vgatherdpd zmm31{k3}, [BASE_DEST + zmm30 * 8] \
            __asm jknzd k3, GATHER##NUM \
        \
        __asm vmulpd REG1, REG1, 0[r12]{1to8} /*scale by alpha*/ \
        __asm vfmadd132pd zmm31, REG1, 0[r13]{1to8} /*scale by beta, add in result*/\
        __asm kmov k3, ebx \
        \
        __asm SCATTER##NUM: \
            __asm vscatterdpd [BASE_DEST + zmm30 * 8]{k3}, zmm31 \
            __asm jknzd k3, SCATTER##NUM \
        __asm add BASE_DEST, r11 \
}


//One iteration of the k_r loop.
//Each iteration, we prefetch A into L1 and into L2
#define ONE_ITER_MAIN_LOOP(C_ADDR, COUNTER) \
{\
        __asm vbroadcastf64x4   zmm30, 0[r15]           \
        __asm vmovapd zmm31, 0[rbx]                     \
                                                        \
        __asm vfmadd231pd zmm0, zmm31, zmm30{aaaa}      \
        __asm vfmadd231pd zmm4, zmm31,  4*8[r15]{1to8}  \
        __asm vprefetch0 A_L1_PREFETCH_DIST*256[r15]    \
        __asm vfmadd231pd zmm5, zmm31,  5*8[r15]{1to8}  \
        __asm vprefetch0 A_L1_PREFETCH_DIST*256+64[r15] \
        __asm vfmadd231pd zmm6, zmm31,  6*8[r15]{1to8}  \
        __asm vprefetch0 A_L1_PREFETCH_DIST*256+128[r15]\
        __asm vfmadd231pd zmm7, zmm31,  7*8[r15]{1to8}  \
        __asm vprefetch0 A_L1_PREFETCH_DIST*256+192[r15]\
        __asm vfmadd231pd zmm8, zmm31,  8*8[r15]{1to8}  \
                                                        \
        __asm vprefetch1 0[r15 + r14]                   \
        __asm vfmadd231pd zmm9, zmm31,  9*8[r15]{1to8}  \
        __asm vfmadd231pd zmm1, zmm31, zmm30{bbbb}      \
        __asm vfmadd231pd zmm2, zmm31, zmm30{cccc}      \
        __asm vfmadd231pd zmm3, zmm31, zmm30{dddd}      \
        __asm vfmadd231pd zmm10, zmm31, 10*8[r15]{1to8} \
                                                        \
        __asm vprefetch1 64[r15 + r14]                  \
        __asm vfmadd231pd zmm11, zmm31, 11*8[r15]{1to8} \
        __asm vfmadd231pd zmm12, zmm31, 12*8[r15]{1to8} \
        __asm vfmadd231pd zmm13, zmm31, 13*8[r15]{1to8} \
        __asm vfmadd231pd zmm14, zmm31, 14*8[r15]{1to8} \
        __asm vfmadd231pd zmm15, zmm31, 15*8[r15]{1to8} \
                                                        \
        __asm vprefetch1 2*64[r15 + r14]                \
        __asm vfmadd231pd zmm16, zmm31, 16*8[r15]{1to8} \
        __asm vfmadd231pd zmm17, zmm31, 17*8[r15]{1to8} \
        __asm vfmadd231pd zmm18, zmm31, 18*8[r15]{1to8} \
        __asm vfmadd231pd zmm19, zmm31, 19*8[r15]{1to8} \
        __asm vfmadd231pd zmm20, zmm31, 20*8[r15]{1to8} \
                                                        \
        __asm vprefetch1 3*64[r15 + r14]                \
        __asm vfmadd231pd zmm21, zmm31, 21*8[r15]{1to8} \
        __asm add r15, r12                              \
        __asm vfmadd231pd zmm22, zmm31, -10*8[r15]{1to8}\
        __asm vfmadd231pd zmm23, zmm31, -9*8[r15]{1to8} \
        __asm vfmadd231pd zmm24, zmm31, -8*8[r15]{1to8} \
        __asm dec COUNTER                               \
        __asm vfmadd231pd zmm25, zmm31, -7*8[r15]{1to8} \
                                                        \
                                                        \
        __asm vprefetch1 0[rbx + r13]                   \
        __asm vfmadd231pd zmm26, zmm31, -6*8[r15]{1to8} \
        __asm vprefetch0 B_L1_PREFETCH_DIST*8*8[rbx]    \
        __asm vfmadd231pd zmm27, zmm31, -5*8[r15]{1to8} \
        __asm add rbx, r9                               \
        __asm vfmadd231pd zmm28, zmm31, -4*8[r15]{1to8} \
        __asm cmp COUNTER, 0                            \
        __asm vfmadd231pd zmm29, zmm31, -3*8[r15]{1to8} \
}

//One iteration of the k_r loop.
//Same as ONE_ITER_MAIN_LOOP, but additionally, we prefetch one line of C into the L2 cache
//Current placement of this prefetch instruction is somewhat arbitrary.
#define ONE_ITER_PC_L2(C_ADDR) \
{\
        __asm vbroadcastf64x4   zmm30, 0[r15]           \
        __asm vmovapd zmm31, 0[rbx]                     \
                                                        \
        __asm vfmadd231pd zmm0, zmm31, zmm30{aaaa}      \
        __asm vfmadd231pd zmm4, zmm31,  4*8[r15]{1to8}  \
        __asm vprefetch0 A_L1_PREFETCH_DIST*256[r15]    \
        __asm vfmadd231pd zmm5, zmm31,  5*8[r15]{1to8}  \
        __asm vprefetch0 A_L1_PREFETCH_DIST*256+64[r15] \
        __asm vfmadd231pd zmm6, zmm31,  6*8[r15]{1to8}  \
        __asm vprefetch0 A_L1_PREFETCH_DIST*256+128[r15]\
        __asm vfmadd231pd zmm7, zmm31,  7*8[r15]{1to8}  \
        __asm vprefetch0 A_L1_PREFETCH_DIST*256+192[r15]\
        __asm vfmadd231pd zmm8, zmm31,  8*8[r15]{1to8}  \
                                                        \
        __asm vprefetch1 0[r15 + r14]                   \
        __asm vfmadd231pd zmm9, zmm31,  9*8[r15]{1to8}  \
        __asm vfmadd231pd zmm1, zmm31, zmm30{bbbb}      \
        __asm vfmadd231pd zmm2, zmm31, zmm30{cccc}      \
        __asm vfmadd231pd zmm3, zmm31, zmm30{dddd}      \
        __asm vfmadd231pd zmm10, zmm31, 10*8[r15]{1to8} \
                                                        \
        __asm vprefetch1 64[r15 + r14]                  \
        __asm vfmadd231pd zmm11, zmm31, 11*8[r15]{1to8} \
        __asm vprefetch1 0[C_ADDR]                      \
        __asm vfmadd231pd zmm12, zmm31, 12*8[r15]{1to8} \
        __asm vfmadd231pd zmm13, zmm31, 13*8[r15]{1to8} \
        __asm vfmadd231pd zmm14, zmm31, 14*8[r15]{1to8} \
        __asm vfmadd231pd zmm15, zmm31, 15*8[r15]{1to8} \
                                                        \
        __asm vprefetch1 2*64[r15 + r14]                \
        __asm vfmadd231pd zmm16, zmm31, 16*8[r15]{1to8} \
        __asm vfmadd231pd zmm17, zmm31, 17*8[r15]{1to8} \
        __asm vfmadd231pd zmm18, zmm31, 18*8[r15]{1to8} \
        __asm vfmadd231pd zmm19, zmm31, 19*8[r15]{1to8} \
        __asm vfmadd231pd zmm20, zmm31, 20*8[r15]{1to8} \
                                                        \
        __asm vprefetch1 3*64[r15 + r14]                \
        __asm vfmadd231pd zmm21, zmm31, 21*8[r15]{1to8} \
        __asm add r15, r12                              \
        __asm vfmadd231pd zmm22, zmm31, -10*8[r15]{1to8}\
        __asm vfmadd231pd zmm23, zmm31, -9*8[r15]{1to8} \
        __asm add C_ADDR, r11                           \
        __asm vfmadd231pd zmm24, zmm31, -8*8[r15]{1to8} \
        __asm dec r8                                    \
        __asm vfmadd231pd zmm25, zmm31, -7*8[r15]{1to8} \
                                                        \
                                                        \
        __asm vprefetch1 0[rbx + r13]                   \
        __asm vfmadd231pd zmm26, zmm31, -6*8[r15]{1to8} \
        __asm vprefetch0 B_L1_PREFETCH_DIST*8*8[rbx]    \
        __asm vfmadd231pd zmm27, zmm31, -5*8[r15]{1to8} \
        __asm add rbx, r9                               \
        __asm vfmadd231pd zmm28, zmm31, -4*8[r15]{1to8} \
        __asm cmp r8, 0                                 \
        __asm vfmadd231pd zmm29, zmm31, -3*8[r15]{1to8} \
\
}

//One iteration of the k_r loop.
//Same as ONE_ITER_MAIN_LOOP, but additionally, we prefetch 3 cache lines of C into the L1 cache
//Current placement of these prefetch instructions is somewhat arbitrary.
#define ONE_ITER_PC_L1(C_ADDR) \
{\
        __asm vbroadcastf64x4   zmm30, 0[r15]           \
        __asm vmovapd zmm31, 0[rbx]                     \
                                                        \
        __asm vfmadd231pd zmm0, zmm31, zmm30{aaaa}      \
        __asm vfmadd231pd zmm4, zmm31,  4*8[r15]{1to8}  \
        __asm vprefetch0 A_L1_PREFETCH_DIST*256[r15]    \
        __asm vfmadd231pd zmm5, zmm31,  5*8[r15]{1to8}  \
        __asm vprefetch0 A_L1_PREFETCH_DIST*256+64[r15] \
        __asm vfmadd231pd zmm6, zmm31,  6*8[r15]{1to8}  \
        __asm vprefetch0 A_L1_PREFETCH_DIST*256+128[r15]\
        __asm vfmadd231pd zmm7, zmm31,  7*8[r15]{1to8}  \
        __asm vprefetch0 A_L1_PREFETCH_DIST*256+192[r15]\
        __asm vfmadd231pd zmm8, zmm31,  8*8[r15]{1to8}  \
                                                        \
        __asm vprefetch1 0[r15 + r14]                   \
        __asm vfmadd231pd zmm9, zmm31,  9*8[r15]{1to8}  \
        __asm vprefetch0 0[C_ADDR]                      \
        __asm vfmadd231pd zmm1, zmm31, zmm30{bbbb}      \
        __asm add C_ADDR, r11 \
        __asm vfmadd231pd zmm2, zmm31, zmm30{cccc}      \
        __asm vfmadd231pd zmm3, zmm31, zmm30{dddd}      \
        __asm vfmadd231pd zmm10, zmm31, 10*8[r15]{1to8} \
                                                        \
        __asm vprefetch1 64[r15 + r14]                  \
        __asm vfmadd231pd zmm11, zmm31, 11*8[r15]{1to8} \
        __asm vprefetch0 0[C_ADDR]                      \
        __asm vfmadd231pd zmm12, zmm31, 12*8[r15]{1to8} \
        __asm add C_ADDR, r11 \
        __asm vfmadd231pd zmm13, zmm31, 13*8[r15]{1to8} \
        __asm vfmadd231pd zmm14, zmm31, 14*8[r15]{1to8} \
        __asm vfmadd231pd zmm15, zmm31, 15*8[r15]{1to8} \
                                                        \
        __asm vprefetch1 2*64[r15 + r14]                \
        __asm vfmadd231pd zmm16, zmm31, 16*8[r15]{1to8} \
        __asm vprefetch0 0[C_ADDR]                      \
        __asm vfmadd231pd zmm17, zmm31, 17*8[r15]{1to8} \
        __asm add C_ADDR, r11                           \
        __asm vfmadd231pd zmm18, zmm31, 18*8[r15]{1to8} \
        __asm vfmadd231pd zmm19, zmm31, 19*8[r15]{1to8} \
        __asm vfmadd231pd zmm20, zmm31, 20*8[r15]{1to8} \
                                                        \
        __asm vprefetch1 3*64[r15 + r14]                \
        __asm vfmadd231pd zmm21, zmm31, 21*8[r15]{1to8} \
        __asm add r15, r12                              \
        __asm vfmadd231pd zmm22, zmm31, -10*8[r15]{1to8}\
        __asm vfmadd231pd zmm23, zmm31, -9*8[r15]{1to8} \
        __asm vfmadd231pd zmm24, zmm31, -8*8[r15]{1to8} \
        __asm dec r8                                    \
        __asm vfmadd231pd zmm25, zmm31, -7*8[r15]{1to8} \
                                                        \
                                                        \
        __asm vprefetch1 0[rbx + r13]                   \
        __asm vfmadd231pd zmm26, zmm31, -6*8[r15]{1to8} \
        __asm vprefetch0 B_L1_PREFETCH_DIST*8*8[rbx]    \
        __asm vfmadd231pd zmm27, zmm31, -5*8[r15]{1to8} \
        __asm add rbx, r9                               \
        __asm vfmadd231pd zmm28, zmm31, -4*8[r15]{1to8} \
        __asm cmp r8, 0                                 \
        __asm vfmadd231pd zmm29, zmm31, -3*8[r15]{1to8} \
\
}

//This is an array used for the scattter/gather instructions.
extern int offsets[16];


//#define MONITORS
//#define LOOPMON
void bli_dgemm_knc_asm_30x8
     (
       dim_t               k,
       double*    restrict alpha,
       double*    restrict a,
       double*    restrict b,
       double*    restrict beta,
       double*    restrict c, inc_t rs_c, inc_t cs_c,
       auxinfo_t* restrict data,
       cntx_t*    restrict cntx
     )
{
    double * a_next = bli_auxinfo_next_a( data );
    double * b_next = bli_auxinfo_next_b( data );

    int * offsetPtr = &offsets[0];

    uint64_t k64 = k;

#ifdef MONITORS
    int toph, topl, both, botl, midl, midh, mid2l, mid2h;
#endif
#ifdef LOOPMON
    int tlooph, tloopl, blooph, bloopl;
#endif
    
    __asm
    {
#ifdef MONITORS
        rdtsc
        mov topl, eax
        mov toph, edx 
#endif
        vpxord  zmm0,  zmm0, zmm0
        vmovaps zmm1,  zmm0  //clear out registers
        vmovaps zmm2,  zmm0 
        mov rsi, k64    //loop index
        vmovaps zmm3,  zmm0 

        mov r11, rs_c           //load row stride
        vmovaps zmm4,  zmm0 
        sal r11, 3              //scale row stride
        vmovaps zmm5,  zmm0 
        mov r15, a              //load address of a
        vmovaps zmm6,  zmm0 
        mov rbx, b              //load address of b
        vmovaps zmm7,  zmm0 

        vmovaps zmm8,  zmm0 
        lea r10, [r11 + 2*r11 + 0] //r10 has 3 * r11
        vmovaps zmm9,  zmm0
        vmovaps zmm10, zmm0 
        mov rdi, r11    
        vmovaps zmm11, zmm0 
        sal rdi, 2              //rdi has 4*r11

        vmovaps zmm12, zmm0 
        mov rcx, c              //load address of c for prefetching
        vmovaps zmm13, zmm0 
        vmovaps zmm14, zmm0 
        mov r8, k64
        vmovaps zmm15, zmm0 

        vmovaps zmm16, zmm0
        vmovaps zmm17, zmm0
        mov r13, L2_PREFETCH_DIST*8*8
        vmovaps zmm18, zmm0 
        mov r14, L2_PREFETCH_DIST*8*32
        vmovaps zmm19, zmm0 
        vmovaps zmm20, zmm0 
        vmovaps zmm21, zmm0 
        vmovaps zmm22, zmm0 

        vmovaps zmm23, zmm0 
        sub r8, 30 + L2_PREFETCH_DIST       //Check if we have over 40 operations to do.
        vmovaps zmm24, zmm0 
        mov r8, 30
        vmovaps zmm25, zmm0 
        mov r9, 8*8                         //amount to increment b* by each iteration
        vmovaps zmm26, zmm0 
        mov r12, 32*8                       //amount to increment a* by each iteration
        vmovaps zmm27, zmm0 
        vmovaps zmm28, zmm0 
        vmovaps zmm29, zmm0 

#ifdef MONITORS
        rdtsc
        mov midl, eax
        mov midh, edx 
#endif
        jle CONSIDER_UNDER_40
        sub rsi, 30 + L2_PREFETCH_DIST
        
        //First 30 iterations
        LOOPREFECHCL2:
            ONE_ITER_PC_L2(rcx)
        jne LOOPREFECHCL2
        mov rcx, c

        //Main Loop.
        LOOPMAIN:
            ONE_ITER_MAIN_LOOP(rcx, rsi)
        jne LOOPMAIN
        
        //Penultimate 22 iterations.
        //Break these off from the main loop to avoid prefetching extra shit.
        mov r14, a_next
        mov r13, b_next
        sub r14, r15
        sub r13, rbx
        
        mov rsi, L2_PREFETCH_DIST-10
        LOOPMAIN2:
            ONE_ITER_MAIN_LOOP(rcx, rsi)
        jne LOOPMAIN2
        
        
        //Last 10 iterations
        mov r8, 10
        LOOPREFETCHCL1:
            ONE_ITER_PC_L1(rcx)
        jne LOOPREFETCHCL1
       

        jmp POSTACCUM

        //Alternate main loop, with no prefetching of C
        //Used when <= 40 iterations
        CONSIDER_UNDER_40:
        mov rsi, k64
        test rsi, rsi
        je POSTACCUM
        LOOP_UNDER_40:
            ONE_ITER_MAIN_LOOP(rcx, rsi)
        jne LOOP_UNDER_40



        POSTACCUM:

#ifdef MONITORS
        rdtsc
        mov mid2l, eax
        mov mid2h, edx
#endif

        mov r9, c               //load address of c for update
        mov r12, alpha          //load address of alpha

        // Check if C is row stride. If not, jump to the slow scattered update
        mov r14, cs_c
        dec r14
        jne SCATTEREDUPDATE

        mov r14, beta
        vbroadcastsd zmm31, 0[r14] 


        vmulpd zmm0, zmm0, 0[r12]{1to8}
        vmulpd zmm1, zmm1, 0[r12]{1to8}
        vmulpd zmm2, zmm2, 0[r12]{1to8}
        vmulpd zmm3, zmm3, 0[r12]{1to8}
        vfmadd231pd zmm0, zmm31, [r9+0]
        vfmadd231pd zmm1, zmm31, [r9+r11+0]
        vfmadd231pd zmm2, zmm31, [r9+2*r11+0]
        vfmadd231pd zmm3, zmm31, [r9+r10+0]
        vmovapd [r9+0], zmm0
        vmovapd [r9+r11+0], zmm1
        vmovapd [r9+2*r11+0], zmm2
        vmovapd [r9+r10+0], zmm3
        add r9, rdi

        vmulpd zmm4, zmm4, 0[r12]{1to8}
        vmulpd zmm5, zmm5, 0[r12]{1to8}
        vmulpd zmm6, zmm6, 0[r12]{1to8}
        vmulpd zmm7, zmm7, 0[r12]{1to8}
        vfmadd231pd zmm4, zmm31, [r9+0]
        vfmadd231pd zmm5, zmm31, [r9+r11+0]
        vfmadd231pd zmm6, zmm31, [r9+2*r11+0]
        vfmadd231pd zmm7, zmm31, [r9+r10+0]
        vmovapd [r9+0], zmm4
        vmovapd [r9+r11+0], zmm5
        vmovapd [r9+2*r11+0], zmm6
        vmovapd [r9+r10+0], zmm7
        add r9, rdi

        vmulpd zmm8, zmm8, 0[r12]{1to8}
        vmulpd zmm9, zmm9, 0[r12]{1to8}
        vmulpd zmm10, zmm10, 0[r12]{1to8}
        vmulpd zmm11, zmm11, 0[r12]{1to8}
        vfmadd231pd zmm8, zmm31, [r9+0]
        vfmadd231pd zmm9, zmm31, [r9+r11+0]
        vfmadd231pd zmm10, zmm31, [r9+2*r11+0]
        vfmadd231pd zmm11, zmm31, [r9+r10+0]
        vmovapd [r9+0], zmm8
        vmovapd [r9+r11+0], zmm9
        vmovapd [r9+2*r11+0], zmm10
        vmovapd [r9+r10+0], zmm11
        add r9, rdi

        vmulpd zmm12, zmm12, 0[r12]{1to8}
        vmulpd zmm13, zmm13, 0[r12]{1to8}
        vmulpd zmm14, zmm14, 0[r12]{1to8}
        vmulpd zmm15, zmm15, 0[r12]{1to8}
        vfmadd231pd zmm12, zmm31, [r9+0]
        vfmadd231pd zmm13, zmm31, [r9+r11+0]
        vfmadd231pd zmm14, zmm31, [r9+2*r11+0]
        vfmadd231pd zmm15, zmm31, [r9+r10+0]
        vmovapd [r9+0], zmm12
        vmovapd [r9+r11+0], zmm13
        vmovapd [r9+2*r11+0], zmm14
        vmovapd [r9+r10+0], zmm15
        add r9, rdi
        
        vmulpd zmm16, zmm16, 0[r12]{1to8}
        vmulpd zmm17, zmm17, 0[r12]{1to8}
        vmulpd zmm18, zmm18, 0[r12]{1to8}
        vmulpd zmm19, zmm19, 0[r12]{1to8}
        vfmadd231pd zmm16, zmm31, [r9+0]
        vfmadd231pd zmm17, zmm31, [r9+r11+0]
        vfmadd231pd zmm18, zmm31, [r9+2*r11+0]
        vfmadd231pd zmm19, zmm31, [r9+r10+0]
        vmovapd [r9+0], zmm16
        vmovapd [r9+r11+0], zmm17
        vmovapd [r9+2*r11+0], zmm18
        vmovapd [r9+r10+0], zmm19
        add r9, rdi

        vmulpd zmm20, zmm20, 0[r12]{1to8}
        vmulpd zmm21, zmm21, 0[r12]{1to8}
        vmulpd zmm22, zmm22, 0[r12]{1to8}
        vmulpd zmm23, zmm23, 0[r12]{1to8}
        vfmadd231pd zmm20, zmm31, [r9+0]
        vfmadd231pd zmm21, zmm31, [r9+r11+0]
        vfmadd231pd zmm22, zmm31, [r9+2*r11+0]
        vfmadd231pd zmm23, zmm31, [r9+r10+0]
        vmovapd [r9+0], zmm20
        vmovapd [r9+r11+0], zmm21
        vmovapd [r9+2*r11+0], zmm22
        vmovapd [r9+r10+0], zmm23
        add r9, rdi

        vmulpd zmm24, zmm24, 0[r12]{1to8}
        vmulpd zmm25, zmm25, 0[r12]{1to8}
        vmulpd zmm26, zmm26, 0[r12]{1to8}
        vmulpd zmm27, zmm27, 0[r12]{1to8}
        vfmadd231pd zmm24, zmm31, [r9+0]
        vfmadd231pd zmm25, zmm31, [r9+r11+0]
        vfmadd231pd zmm26, zmm31, [r9+2*r11+0]
        vfmadd231pd zmm27, zmm31, [r9+r10+0]
        vmovapd [r9+0], zmm24
        vmovapd [r9+r11+0], zmm25
        vmovapd [r9+2*r11+0], zmm26
        vmovapd [r9+r10+0], zmm27
        add r9, rdi

        vmulpd zmm28, zmm28, 0[r12]{1to8}
        vmulpd zmm29, zmm29, 0[r12]{1to8}
        vfmadd231pd zmm28, zmm31, [r9+0]
        vfmadd231pd zmm29, zmm31, [r9+r11+0]
        vmovapd [r9+0], zmm28
        vmovapd [r9+r11+0], zmm29
        
        jmp END
        
        SCATTEREDUPDATE:
        mov r10, offsetPtr 
        vmovapd zmm31, 0[r10] 
        vpbroadcastd zmm30, cs_c 
        mov r13, beta
        vpmulld zmm30, zmm31, zmm30 

        mov ebx, 255 
        UPDATE_C_ROW_SCATTERED(zmm0, 0, r9) 
        UPDATE_C_ROW_SCATTERED(zmm1, 1, r9) 
        UPDATE_C_ROW_SCATTERED(zmm2, 2, r9) 
        UPDATE_C_ROW_SCATTERED(zmm3, 3, r9) 
        UPDATE_C_ROW_SCATTERED(zmm4, 4, r9) 
        UPDATE_C_ROW_SCATTERED(zmm5, 5, r9) 
        UPDATE_C_ROW_SCATTERED(zmm6, 6, r9) 
        UPDATE_C_ROW_SCATTERED(zmm7, 7, r9) 
        UPDATE_C_ROW_SCATTERED(zmm8, 8, r9) 
        UPDATE_C_ROW_SCATTERED(zmm9, 9, r9) 
        UPDATE_C_ROW_SCATTERED(zmm10, 10, r9) 
        UPDATE_C_ROW_SCATTERED(zmm11, 11, r9) 
        UPDATE_C_ROW_SCATTERED(zmm12, 12, r9) 
        UPDATE_C_ROW_SCATTERED(zmm13, 13, r9) 
        UPDATE_C_ROW_SCATTERED(zmm14, 14, r9) 
        UPDATE_C_ROW_SCATTERED(zmm15, 15, r9) 
        UPDATE_C_ROW_SCATTERED(zmm16, 16, r9) 
        UPDATE_C_ROW_SCATTERED(zmm17, 17, r9) 
        UPDATE_C_ROW_SCATTERED(zmm18, 18, r9) 
        UPDATE_C_ROW_SCATTERED(zmm19, 19, r9) 
        UPDATE_C_ROW_SCATTERED(zmm20, 20, r9) 
        UPDATE_C_ROW_SCATTERED(zmm21, 21, r9) 
        UPDATE_C_ROW_SCATTERED(zmm22, 22, r9) 
        UPDATE_C_ROW_SCATTERED(zmm23, 23, r9) 
        UPDATE_C_ROW_SCATTERED(zmm24, 24, r9) 
        UPDATE_C_ROW_SCATTERED(zmm25, 25, r9) 
        UPDATE_C_ROW_SCATTERED(zmm26, 26, r9) 
        UPDATE_C_ROW_SCATTERED(zmm27, 27, r9) 
        UPDATE_C_ROW_SCATTERED(zmm28, 28, r9) 
        UPDATE_C_ROW_SCATTERED(zmm29, 29, r9)

        END:
#ifdef MONITORS
        rdtsc
        mov botl, eax
        mov both, edx
#endif
    }

#ifdef LOOPMON
    printf("looptime = \t%d\n", bloopl - tloopl);
#endif
#ifdef MONITORS
    dim_t top = ((dim_t)toph << 32) | topl;
    dim_t mid = ((dim_t)midh << 32) | midl;
    dim_t mid2 = ((dim_t)mid2h << 32) | mid2l;
    dim_t bot = ((dim_t)both << 32) | botl;
    printf("setup =\t%u\tmain loop =\t%u\tcleanup=\t%u\ttotal=\t%u\n", mid - top, mid2 - mid, bot - mid2, bot - top);
#endif
}

