1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; 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_4vect_mad_avx(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 tmp3 r13
%define return rax
%define return.w eax
%define stack_size 16*10 + 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
movdqa [rsp+16*9],xmm15
save_reg r12, 10*16 + 0*8
save_reg r13, 10*16 + 1*8
save_reg r15, 10*16 + 2*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]
movdqa xmm15, [rsp+16*9]
mov r12, [rsp + 10*16 + 0*8]
mov r13, [rsp + 10*16 + 1*8]
mov r15, [rsp + 10*16 + 2*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 tmp3 r12
%define return rax
%define return.w eax
%define func(x) x:
%macro FUNC_SAVE 0
push r12
%endmacro
%macro FUNC_RESTORE 0
pop r12
%endmacro
%endif
;;; gf_4vect_mad_avx(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 mul_array
%define dest3 tmp2
%define dest4 vec_i
%ifndef EC_ALIGNED_ADDR
;;; Use Un-aligned load/store
%define XLDR vmovdqu
%define XSTR vmovdqu
%else
;;; Use Non-temporal load/stor
%ifdef NO_NT_LDST
%define XLDR vmovdqa
%define XSTR vmovdqa
%else
%define XLDR vmovntdqa
%define XSTR vmovntdq
%endif
%endif
default rel
[bits 64]
section .text
%define xmask0f xmm15
%define xgft3_hi xmm14
%define xgft4_hi xmm13
%define xgft4_lo xmm12
%define x0 xmm0
%define xtmpa xmm1
%define xtmph1 xmm2
%define xtmpl1 xmm3
%define xtmph2 xmm4
%define xtmpl2 xmm5
%define xtmph3 xmm6
%define xtmpl3 xmm7
%define xtmph4 xmm8
%define xtmpl4 xmm9
%define xd1 xmm10
%define xd2 xmm11
%define xd3 xtmph1
%define xd4 xtmpl1
align 16
global gf_4vect_mad_avx:ISAL_SYM_TYPE_FUNCTION
func(gf_4vect_mad_avx)
FUNC_SAVE
sub len, 16
jl .return_fail
xor pos, pos
vmovdqa xmask0f, [mask0f] ;Load mask of lower nibble in each byte
mov tmp, vec
sal vec_i, 5 ;Multiply by 32
lea tmp3, [mul_array + vec_i]
sal tmp, 6 ;Multiply by 64
vmovdqu xgft3_hi, [tmp3+tmp+16] ; " Cx{00}, Cx{10}, Cx{20}, ... , Cx{f0}
sal vec, 5 ;Multiply by 32
add tmp, vec
vmovdqu xgft4_lo, [tmp3+tmp] ;Load array Dx{00}, Dx{01}, Dx{02}, ...
vmovdqu xgft4_hi, [tmp3+tmp+16] ; " Dx{00}, Dx{10}, Dx{20}, ... , Dx{f0}
mov dest2, [dest1+PS] ; reuse mul_array
mov dest3, [dest1+2*PS]
mov dest4, [dest1+3*PS] ; reuse vec_i
mov dest1, [dest1]
.loop16:
XLDR x0, [src+pos] ;Get next source vector
vmovdqu xtmph1, [tmp3+16] ; " Ax{00}, Ax{10}, Ax{20}, ... , Ax{f0}
vmovdqu xtmpl1, [tmp3] ;Load array Ax{00}, Ax{01}, Ax{02}, ...
vmovdqu xtmph2, [tmp3+vec+16] ; " Bx{00}, Bx{10}, Bx{20}, ... , Bx{f0}
vmovdqu xtmpl2, [tmp3+vec] ;Load array Bx{00}, Bx{01}, Bx{02}, ...
vmovdqu xtmpl3, [tmp3+2*vec] ;Load array Cx{00}, Cx{01}, Cx{02}, ...
XLDR xd1, [dest1+pos] ;Get next dest vector
XLDR xd2, [dest2+pos] ;Get next dest vector
vpand xtmpa, x0, xmask0f ;Mask low src nibble in bits 4-0
vpsraw x0, x0, 4 ;Shift to put high nibble into bits 4-0
vpand x0, x0, xmask0f ;Mask high src nibble in bits 4-0
; dest1
vpshufb xtmph1, xtmph1, x0 ;Lookup mul table of high nibble
vpshufb xtmpl1, xtmpl1, xtmpa ;Lookup mul table of low nibble
vpxor xtmph1, xtmph1, xtmpl1 ;GF add high and low partials
vpxor xd1, xd1, xtmph1
XLDR xd3, [dest3+pos] ;Reuse xtmph1, Get next dest vector
XLDR xd4, [dest4+pos] ;Reuse xtmpl1, Get next dest vector
; dest2
vpshufb xtmph2, xtmph2, x0 ;Lookup mul table of high nibble
vpshufb xtmpl2, xtmpl2, xtmpa ;Lookup mul table of low nibble
vpxor xtmph2, xtmph2, xtmpl2 ;GF add high and low partials
vpxor xd2, xd2, xtmph2
; dest3
vpshufb xtmph3, xgft3_hi, x0 ;Lookup mul table of high nibble
vpshufb xtmpl3, xtmpl3, xtmpa ;Lookup mul table of low nibble
vpxor xtmph3, xtmph3, xtmpl3 ;GF add high and low partials
vpxor xd3, xd3, xtmph3
; dest4
vpshufb xtmph4, xgft4_hi, x0 ;Lookup mul table of high nibble
vpshufb xtmpl4, xgft4_lo, xtmpa ;Lookup mul table of low nibble
vpxor xtmph4, xtmph4, xtmpl4 ;GF add high and low partials
vpxor xd4, xd4, xtmph4
XSTR [dest1+pos], xd1 ;Store result
XSTR [dest2+pos], xd2 ;Store result
XSTR [dest3+pos], xd3 ;Store result
XSTR [dest4+pos], xd4 ;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
.lessthan16:
;; Tail len
;; Do one more overlap pass
mov tmp, len ;Overlapped offset length-16
XLDR x0, [src+tmp] ;Get next source vector
vmovdqu xtmph1, [tmp3+16] ; " Ax{00}, Ax{10}, Ax{20}, ... , Ax{f0}
vmovdqu xtmpl1, [tmp3] ;Load array Ax{00}, Ax{01}, Ax{02}, ...
vmovdqu xtmph2, [tmp3+vec+16] ; " Bx{00}, Bx{10}, Bx{20}, ... , Bx{f0}
vmovdqu xtmpl2, [tmp3+vec] ;Load array Bx{00}, Bx{01}, Bx{02}, ...
vmovdqu xtmpl3, [tmp3+2*vec] ;Load array Cx{00}, Cx{01}, Cx{02}, ...
XLDR xd1, [dest1+tmp] ;Get next dest vector
XLDR xd2, [dest2+tmp] ;Get next dest vector
XLDR xtmph4, [dest3+tmp] ;Get next dest vector
sub len, pos
vmovdqa xtmpl4, [constip16] ;Load const of i + 16
vpinsrb xtmph3, xtmph3, len.w, 15
vpshufb xtmph3, xtmph3, xmask0f ;Broadcast len to all bytes
vpcmpgtb xtmph3, xtmph3, xtmpl4
XLDR xtmpl4, [dest4+tmp] ;Get next dest vector
vpand xtmpa, x0, xmask0f ;Mask low src nibble in bits 4-0
vpsraw x0, x0, 4 ;Shift to put high nibble into bits 4-0
vpand x0, x0, xmask0f ;Mask high src nibble in bits 4-0
; dest1
vpshufb xtmph1, xtmph1, x0 ;Lookup mul table of high nibble
vpshufb xtmpl1, xtmpl1, xtmpa ;Lookup mul table of low nibble
vpxor xtmph1, xtmph1, xtmpl1 ;GF add high and low partials
vpand xtmph1, xtmph1, xtmph3
vpxor xd1, xd1, xtmph1
; dest2
vpshufb xtmph2, xtmph2, x0 ;Lookup mul table of high nibble
vpshufb xtmpl2, xtmpl2, xtmpa ;Lookup mul table of low nibble
vpxor xtmph2, xtmph2, xtmpl2 ;GF add high and low partials
vpand xtmph2, xtmph2, xtmph3
vpxor xd2, xd2, xtmph2
; dest3
vpshufb xgft3_hi, xgft3_hi, x0 ;Lookup mul table of high nibble
vpshufb xtmpl3, xtmpl3, xtmpa ;Lookup mul table of low nibble
vpxor xgft3_hi, xgft3_hi, xtmpl3 ;GF add high and low partials
vpand xgft3_hi, xgft3_hi, xtmph3
vpxor xtmph4, xtmph4, xgft3_hi
; dest4
vpshufb xgft4_hi, xgft4_hi, x0 ;Lookup mul table of high nibble
vpshufb xgft4_lo, xgft4_lo, xtmpa ;Lookup mul table of low nibble
vpxor xgft4_hi, xgft4_hi, xgft4_lo ;GF add high and low partials
vpand xgft4_hi, xgft4_hi, xtmph3
vpxor xtmpl4, xtmpl4, xgft4_hi
XSTR [dest1+tmp], xd1 ;Store result
XSTR [dest2+tmp], xd2 ;Store result
XSTR [dest3+tmp], xtmph4 ;Store result
XSTR [dest4+tmp], xtmpl4 ;Store result
.return_pass:
mov return, 0
FUNC_RESTORE
ret
.return_fail:
mov return, 1
FUNC_RESTORE
ret
endproc_frame
section .data
align 16
mask0f: dq 0x0f0f0f0f0f0f0f0f, 0x0f0f0f0f0f0f0f0f
constip16:
dq 0xf8f9fafbfcfdfeff, 0xf0f1f2f3f4f5f6f7
;;; func core, ver, snum
slversion gf_4vect_mad_avx, 02, 01, 020a
|
