/*************************************************************************** Copyright (c) 2013, 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. *****************************************************************************/ /************************************************************************************** * 2013/11/05 Saar * BLASTEST : OK * CTEST : OK * TEST : OK * **************************************************************************************/ #define ASSEMBLER #include "common.h" #define STACKSIZE 256 #define OLD_M r0 #define OLD_N r1 #define OLD_A r2 #define OLD_LDA r3 /****************************************************** * [fp, #-128] - [fp, #-64] is reserved * for store and restore of floating point * registers *******************************************************/ #define LDA [fp, #-260 ] #define B [fp, #4 ] #define M r0 #define N r1 #define A r2 #define BO r5 #define AO1 r6 #define AO2 r7 #define AO3 r8 #define AO4 r9 #define I r3 #define J r12 #define A_PRE 256 /************************************************************************************** * Macro definitions **************************************************************************************/ .macro COPY4x4 pld [ AO1, #A_PRE ] pld [ AO2, #A_PRE ] pld [ AO3, #A_PRE ] pld [ AO4, #A_PRE ] fldd d0 , [ AO1, #0 ] fldd d1 , [ AO2, #0 ] fldd d2 , [ AO3, #0 ] fldd d3 , [ AO4, #0 ] fldd d4 , [ AO1, #8 ] fldd d8 , [ AO1, #16 ] fldd d12, [ AO1, #24 ] fldd d5 , [ AO2, #8 ] add AO1, AO1, #32 fldd d9 , [ AO2, #16 ] fldd d13, [ AO2, #24 ] fldd d6 , [ AO3, #8 ] add AO2, AO2, #32 fldd d10, [ AO3, #16 ] fldd d14, [ AO3, #24 ] fldd d7 , [ AO4, #8 ] add AO3, AO3, #32 fldd d11, [ AO4, #16 ] fldd d15, [ AO4, #24 ] fstmiad BO!, { d0 - d3 } add AO4, AO4, #32 fstmiad BO!, { d4 - d7 } fstmiad BO!, { d8 - d15 } .endm .macro COPY1x4 fldd d0 , [ AO1, #0 ] fldd d1 , [ AO2, #0 ] add AO1, AO1, #8 fldd d2 , [ AO3, #0 ] add AO2, AO2, #8 fldd d3 , [ AO4, #0 ] add AO3, AO3, #8 fstmiad BO!, { d0 - d3 } add AO4, AO4, #8 .endm .macro COPY4x2 fldd d0 , [ AO1, #0 ] fldd d2 , [ AO1, #8 ] fldd d4 , [ AO1, #16 ] fldd d6 , [ AO1, #24 ] fldd d1 , [ AO2, #0 ] fldd d3 , [ AO2, #8 ] add AO1, AO1, #32 fldd d5 , [ AO2, #16 ] fldd d7 , [ AO2, #24 ] fstmiad BO!, { d0 - d7 } add AO2, AO2, #32 .endm .macro COPY1x2 fldd d0 , [ AO1, #0 ] fldd d1 , [ AO2, #0 ] add AO1, AO1, #8 fstmiad BO!, { d0 - d1 } add AO2, AO2, #8 .endm .macro COPY4x1 fldd d0 , [ AO1, #0 ] fldd d1 , [ AO1, #8 ] fldd d2 , [ AO1, #16 ] fldd d3 , [ AO1, #24 ] fstmiad BO!, { d0 - d3 } add AO1, AO1, #32 .endm .macro COPY1x1 fldd d0 , [ AO1, #0 ] fstmiad BO!, { d0 } add AO1, AO1, #8 .endm /************************************************************************************** * End of macro definitions **************************************************************************************/ PROLOGUE .align 5 push {r4 - r9, fp} add fp, sp, #24 sub sp, sp, #STACKSIZE // reserve stack lsl r3, r3, #3 // lda = lda * 8 str r3, LDA sub r4, fp, #128 vstm r4, { d8 - d15} // store floating point registers ldr BO, B dgemm_ncopy_L4_BEGIN: asrs J, N, #2 // J = N / 4 ble dgemm_ncopy_L2_BEGIN dgemm_ncopy_L4_M4_BEGIN: mov AO1, A // AO1 = A ldr r4 , LDA add AO2, AO1, r4 add AO3, AO2, r4 add AO4, AO3, r4 add A , AO4, r4 // A = A + 4 * LDA asrs I, M, #2 // I = M / 4 ble dgemm_ncopy_L4_M4_40 dgemm_ncopy_L4_M4_20: COPY4x4 subs I , I , #1 bne dgemm_ncopy_L4_M4_20 dgemm_ncopy_L4_M4_40: ands I, M , #3 ble dgemm_ncopy_L4_M4_END dgemm_ncopy_L4_M4_60: COPY1x4 subs I , I , #1 bne dgemm_ncopy_L4_M4_60 dgemm_ncopy_L4_M4_END: subs J , J, #1 // j-- bne dgemm_ncopy_L4_M4_BEGIN /*********************************************************************************************/ dgemm_ncopy_L2_BEGIN: tst N, #3 ble dgemm_ncopy_L999 tst N, #2 ble dgemm_ncopy_L1_BEGIN dgemm_ncopy_L2_M4_BEGIN: mov AO1, A // AO1 = A ldr r4 , LDA add AO2, AO1, r4 add A , AO2, r4 // A = A + 2 * LDA asrs I, M, #2 // I = M / 4 ble dgemm_ncopy_L2_M4_40 dgemm_ncopy_L2_M4_20: COPY4x2 subs I , I , #1 bne dgemm_ncopy_L2_M4_20 dgemm_ncopy_L2_M4_40: ands I, M , #3 ble dgemm_ncopy_L2_M4_END dgemm_ncopy_L2_M4_60: COPY1x2 subs I , I , #1 bne dgemm_ncopy_L2_M4_60 dgemm_ncopy_L2_M4_END: /*********************************************************************************************/ dgemm_ncopy_L1_BEGIN: tst N, #1 ble dgemm_ncopy_L999 dgemm_ncopy_L1_M4_BEGIN: mov AO1, A // AO1 = A ldr r4 , LDA add A , AO1, r4 // A = A + 1 * LDA asrs I, M, #2 // I = M / 4 ble dgemm_ncopy_L1_M4_40 dgemm_ncopy_L1_M4_20: COPY4x1 subs I , I , #1 bne dgemm_ncopy_L1_M4_20 dgemm_ncopy_L1_M4_40: ands I, M , #3 ble dgemm_ncopy_L1_M4_END dgemm_ncopy_L1_M4_60: COPY1x1 subs I , I , #1 bne dgemm_ncopy_L1_M4_60 dgemm_ncopy_L1_M4_END: dgemm_ncopy_L999: sub r3, fp, #128 vldm r3, { d8 - d15} // restore floating point registers movs r0, #0 // set return value sub sp, fp, #24 pop {r4 - r9, fp} bx lr EPILOGUE