;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; Copyright(c) 2011-2015 Intel Corporation All rights reserved. ; ; 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 of Intel Corporation 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 COPYRIGHT ; OWNER 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. ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;; ;;; gf_2vect_mad_sse(len, vec, vec_i, mul_array, src, dest); ;;; %include "reg_sizes.asm" %define PS 8 %ifidn __OUTPUT_FORMAT__, win64 %define arg0 rcx %define arg0.w ecx %define arg1 rdx %define arg2 r8 %define arg3 r9 %define arg4 r12 %define arg5 r15 %define tmp r11 %define tmp2 r10 %define return rax %define return.w eax %define stack_size 16*9 + 3*8 %define arg(x) [rsp + stack_size + PS + PS*x] %define func(x) proc_frame x %macro FUNC_SAVE 0 sub rsp, stack_size movdqa [rsp+16*0],xmm6 movdqa [rsp+16*1],xmm7 movdqa [rsp+16*2],xmm8 movdqa [rsp+16*3],xmm9 movdqa [rsp+16*4],xmm10 movdqa [rsp+16*5],xmm11 movdqa [rsp+16*6],xmm12 movdqa [rsp+16*7],xmm13 movdqa [rsp+16*8],xmm14 save_reg r12, 9*16 + 0*8 save_reg r15, 9*16 + 1*8 end_prolog mov arg4, arg(4) mov arg5, arg(5) %endmacro %macro FUNC_RESTORE 0 movdqa xmm6, [rsp+16*0] movdqa xmm7, [rsp+16*1] movdqa xmm8, [rsp+16*2] movdqa xmm9, [rsp+16*3] movdqa xmm10, [rsp+16*4] movdqa xmm11, [rsp+16*5] movdqa xmm12, [rsp+16*6] movdqa xmm13, [rsp+16*7] movdqa xmm14, [rsp+16*8] mov r12, [rsp + 9*16 + 0*8] mov r15, [rsp + 9*16 + 1*8] add rsp, stack_size %endmacro %elifidn __OUTPUT_FORMAT__, elf64 %define arg0 rdi %define arg0.w edi %define arg1 rsi %define arg2 rdx %define arg3 rcx %define arg4 r8 %define arg5 r9 %define tmp r11 %define tmp2 r10 %define return rax %define return.w eax %define func(x) x: %define FUNC_SAVE %define FUNC_RESTORE %endif ;;; gf_2vect_mad_sse(len, vec, vec_i, mul_array, src, dest) %define len arg0 %define len.w arg0.w %define vec arg1 %define vec_i arg2 %define mul_array arg3 %define src arg4 %define dest1 arg5 %define pos return %define pos.w return.w %define dest2 tmp2 %ifndef EC_ALIGNED_ADDR ;;; Use Un-aligned load/store %define XLDR movdqu %define XSTR movdqu %else ;;; Use Non-temporal load/stor %ifdef NO_NT_LDST %define XLDR movdqa %define XSTR movdqa %else %define XLDR movntdqa %define XSTR movntdq %endif %endif default rel [bits 64] section .text %define xmask0f xmm14 %define xgft1_lo xmm13 %define xgft1_hi xmm12 %define xgft2_lo xmm11 %define xgft2_hi xmm10 %define x0 xmm0 %define xtmpa xmm1 %define xtmph1 xmm2 %define xtmpl1 xmm3 %define xtmph2 xmm4 %define xtmpl2 xmm5 %define xd1 xmm6 %define xd2 xmm7 %define xtmpd1 xmm8 %define xtmpd2 xmm9 align 16 global gf_2vect_mad_sse:ISAL_SYM_TYPE_FUNCTION func(gf_2vect_mad_sse) FUNC_SAVE sub len, 16 jl .return_fail xor pos, pos movdqa xmask0f, [mask0f] ;Load mask of lower nibble in each byte sal vec_i, 5 ;Multiply by 32 sal vec, 5 lea tmp, [mul_array + vec_i] movdqu xgft1_lo,[tmp] ;Load array Ax{00}, Ax{01}, Ax{02}, ... movdqu xgft1_hi, [tmp+16] ; " Ax{00}, Ax{10}, Ax{20}, ... , Ax{f0} movdqu xgft2_lo, [tmp+vec] ;Load array Bx{00}, Bx{01}, Bx{02}, ... movdqu xgft2_hi, [tmp+vec+16] ; " Bx{00}, Bx{10}, Bx{20}, ... , Bx{f0} mov dest2, [dest1+PS] mov dest1, [dest1] XLDR xtmpd1, [dest1+len] ;backup the last 16 bytes in dest XLDR xtmpd2, [dest2+len] ;backup the last 16 bytes in dest .loop16: XLDR xd1, [dest1+pos] ;Get next dest vector XLDR xd2, [dest2+pos] ;Get next dest vector .loop16_overlap: XLDR x0, [src+pos] ;Get next source vector movdqa xtmph1, xgft1_hi ;Reload const array registers movdqa xtmpl1, xgft1_lo movdqa xtmph2, xgft2_hi ;Reload const array registers movdqa xtmpl2, xgft2_lo movdqa xtmpa, x0 ;Keep unshifted copy of src psraw x0, 4 ;Shift to put high nibble into bits 4-0 pand x0, xmask0f ;Mask high src nibble in bits 4-0 pand xtmpa, xmask0f ;Mask low src nibble in bits 4-0 pshufb xtmph1, x0 ;Lookup mul table of high nibble pshufb xtmpl1, xtmpa ;Lookup mul table of low nibble pxor xtmph1, xtmpl1 ;GF add high and low partials pxor xd1, xtmph1 pshufb xtmph2, x0 ;Lookup mul table of high nibble pshufb xtmpl2, xtmpa ;Lookup mul table of low nibble pxor xtmph2, xtmpl2 ;GF add high and low partials pxor xd2, xtmph2 XSTR [dest1+pos], xd1 ;Store result XSTR [dest2+pos], xd2 ;Store result add pos, 16 ;Loop on 16 bytes at a time cmp pos, len jle .loop16 lea tmp, [len + 16] cmp pos, tmp je .return_pass ;; Tail len mov pos, len ;Overlapped offset length-16 movdqa xd1, xtmpd1 ;Restore xd1 movdqa xd2, xtmpd2 ;Restore xd2 jmp .loop16_overlap ;Do one more overlap pass .return_pass: FUNC_RESTORE mov return, 0 ret .return_fail: FUNC_RESTORE mov return, 1 ret endproc_frame section .data align 16 mask0f: dq 0x0f0f0f0f0f0f0f0f, 0x0f0f0f0f0f0f0f0f ;;; func core, ver, snum slversion gf_2vect_mad_sse, 00, 01, 0203