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Diffstat (limited to 'deps/flac-1.3.2/src/libFLAC/ia32/fixed_asm.nasm')
| -rw-r--r-- | deps/flac-1.3.2/src/libFLAC/ia32/fixed_asm.nasm | 309 |
1 files changed, 0 insertions, 309 deletions
diff --git a/deps/flac-1.3.2/src/libFLAC/ia32/fixed_asm.nasm b/deps/flac-1.3.2/src/libFLAC/ia32/fixed_asm.nasm deleted file mode 100644 index 8477724..0000000 --- a/deps/flac-1.3.2/src/libFLAC/ia32/fixed_asm.nasm +++ /dev/null @@ -1,309 +0,0 @@ -; vim:filetype=nasm ts=8 - -; libFLAC - Free Lossless Audio Codec library -; Copyright (C) 2001-2009 Josh Coalson -; Copyright (C) 2011-2016 Xiph.Org Foundation -; -; 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 the Xiph.org Foundation 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 FOUNDATION 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 "nasm.h" - - data_section - -cglobal FLAC__fixed_compute_best_predictor_asm_ia32_mmx_cmov - - code_section - -; ********************************************************************** -; -; unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 *data, unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]) -; { -; FLAC__int32 last_error_0 = data[-1]; -; FLAC__int32 last_error_1 = data[-1] - data[-2]; -; FLAC__int32 last_error_2 = last_error_1 - (data[-2] - data[-3]); -; FLAC__int32 last_error_3 = last_error_2 - (data[-2] - 2*data[-3] + data[-4]); -; FLAC__int32 error, save; -; FLAC__uint32 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0; -; unsigned i, order; -; -; for(i = 0; i < data_len; i++) { -; error = data[i] ; total_error_0 += local_abs(error); save = error; -; error -= last_error_0; total_error_1 += local_abs(error); last_error_0 = save; save = error; -; error -= last_error_1; total_error_2 += local_abs(error); last_error_1 = save; save = error; -; error -= last_error_2; total_error_3 += local_abs(error); last_error_2 = save; save = error; -; error -= last_error_3; total_error_4 += local_abs(error); last_error_3 = save; -; } -; -; if(total_error_0 < min(min(min(total_error_1, total_error_2), total_error_3), total_error_4)) -; order = 0; -; else if(total_error_1 < min(min(total_error_2, total_error_3), total_error_4)) -; order = 1; -; else if(total_error_2 < min(total_error_3, total_error_4)) -; order = 2; -; else if(total_error_3 < total_error_4) -; order = 3; -; else -; order = 4; -; -; residual_bits_per_sample[0] = (float)((data_len > 0 && total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0); -; residual_bits_per_sample[1] = (float)((data_len > 0 && total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0); -; residual_bits_per_sample[2] = (float)((data_len > 0 && total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0); -; residual_bits_per_sample[3] = (float)((data_len > 0 && total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0); -; residual_bits_per_sample[4] = (float)((data_len > 0 && total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0); -; -; return order; -; } - ALIGN 16 -cident FLAC__fixed_compute_best_predictor_asm_ia32_mmx_cmov - - ; esp + 36 == data[] - ; esp + 40 == data_len - ; esp + 44 == residual_bits_per_sample[] - - push ebp - push ebx - push esi - push edi - sub esp, byte 16 - ; qword [esp] == temp space for loading FLAC__uint64s to FPU regs - - ; ebx == &data[i] - ; ecx == loop counter (i) - ; ebp == order - ; mm0 == total_error_1:total_error_0 - ; mm1 == total_error_2:total_error_3 - ; mm2 == :total_error_4 - ; mm3 == last_error_1:last_error_0 - ; mm4 == last_error_2:last_error_3 - - mov ecx, [esp + 40] ; ecx = data_len - test ecx, ecx - jz near .data_len_is_0 - - mov ebx, [esp + 36] ; ebx = data[] - movd mm3, [ebx - 4] ; mm3 = 0:last_error_0 - movd mm2, [ebx - 8] ; mm2 = 0:data[-2] - movd mm1, [ebx - 12] ; mm1 = 0:data[-3] - movd mm0, [ebx - 16] ; mm0 = 0:data[-4] - movq mm5, mm3 ; mm5 = 0:last_error_0 - psubd mm5, mm2 ; mm5 = 0:last_error_1 - punpckldq mm3, mm5 ; mm3 = last_error_1:last_error_0 - psubd mm2, mm1 ; mm2 = 0:data[-2] - data[-3] - psubd mm5, mm2 ; mm5 = 0:last_error_2 - movq mm4, mm5 ; mm4 = 0:last_error_2 - psubd mm4, mm2 ; mm4 = 0:last_error_2 - (data[-2] - data[-3]) - paddd mm4, mm1 ; mm4 = 0:last_error_2 - (data[-2] - 2 * data[-3]) - psubd mm4, mm0 ; mm4 = 0:last_error_3 - punpckldq mm4, mm5 ; mm4 = last_error_2:last_error_3 - pxor mm0, mm0 ; mm0 = total_error_1:total_error_0 - pxor mm1, mm1 ; mm1 = total_error_2:total_error_3 - pxor mm2, mm2 ; mm2 = 0:total_error_4 - - ALIGN 16 -.loop: - movd mm7, [ebx] ; mm7 = 0:error_0 - add ebx, byte 4 - movq mm6, mm7 ; mm6 = 0:error_0 - psubd mm7, mm3 ; mm7 = :error_1 - punpckldq mm6, mm7 ; mm6 = error_1:error_0 - movq mm5, mm6 ; mm5 = error_1:error_0 - movq mm7, mm6 ; mm7 = error_1:error_0 - psubd mm5, mm3 ; mm5 = error_2: - movq mm3, mm6 ; mm3 = error_1:error_0 - psrad mm6, 31 - pxor mm7, mm6 - psubd mm7, mm6 ; mm7 = abs(error_1):abs(error_0) - paddd mm0, mm7 ; mm0 = total_error_1:total_error_0 - movq mm6, mm5 ; mm6 = error_2: - psubd mm5, mm4 ; mm5 = error_3: - punpckhdq mm5, mm6 ; mm5 = error_2:error_3 - movq mm7, mm5 ; mm7 = error_2:error_3 - movq mm6, mm5 ; mm6 = error_2:error_3 - psubd mm5, mm4 ; mm5 = :error_4 - movq mm4, mm6 ; mm4 = error_2:error_3 - psrad mm6, 31 - pxor mm7, mm6 - psubd mm7, mm6 ; mm7 = abs(error_2):abs(error_3) - paddd mm1, mm7 ; mm1 = total_error_2:total_error_3 - movq mm6, mm5 ; mm6 = :error_4 - psrad mm5, 31 - pxor mm6, mm5 - psubd mm6, mm5 ; mm6 = :abs(error_4) - paddd mm2, mm6 ; mm2 = :total_error_4 - - dec ecx - jnz short .loop - -; if(total_error_0 < min(min(min(total_error_1, total_error_2), total_error_3), total_error_4)) -; order = 0; -; else if(total_error_1 < min(min(total_error_2, total_error_3), total_error_4)) -; order = 1; -; else if(total_error_2 < min(total_error_3, total_error_4)) -; order = 2; -; else if(total_error_3 < total_error_4) -; order = 3; -; else -; order = 4; - movq mm3, mm0 ; mm3 = total_error_1:total_error_0 - movd edi, mm2 ; edi = total_error_4 - movd esi, mm1 ; esi = total_error_3 - movd eax, mm0 ; eax = total_error_0 - punpckhdq mm1, mm1 ; mm1 = total_error_2:total_error_2 - punpckhdq mm3, mm3 ; mm3 = total_error_1:total_error_1 - movd edx, mm1 ; edx = total_error_2 - movd ecx, mm3 ; ecx = total_error_1 - - xor ebx, ebx - xor ebp, ebp - inc ebx - cmp ecx, eax - cmovb eax, ecx ; eax = min(total_error_0, total_error_1) - cmovbe ebp, ebx - inc ebx - cmp edx, eax - cmovb eax, edx ; eax = min(total_error_0, total_error_1, total_error_2) - cmovbe ebp, ebx - inc ebx - cmp esi, eax - cmovb eax, esi ; eax = min(total_error_0, total_error_1, total_error_2, total_error_3) - cmovbe ebp, ebx - inc ebx - cmp edi, eax - cmovb eax, edi ; eax = min(total_error_0, total_error_1, total_error_2, total_error_3, total_error_4) - cmovbe ebp, ebx - movd ebx, mm0 ; ebx = total_error_0 - emms - - ; residual_bits_per_sample[0] = (float)((data_len > 0 && total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0); - ; residual_bits_per_sample[1] = (float)((data_len > 0 && total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0); - ; residual_bits_per_sample[2] = (float)((data_len > 0 && total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0); - ; residual_bits_per_sample[3] = (float)((data_len > 0 && total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0); - ; residual_bits_per_sample[4] = (float)((data_len > 0 && total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0); - xor eax, eax - fild dword [esp + 40] ; ST = data_len (NOTE: assumes data_len is <2gigs) -.rbps_0: - test ebx, ebx - jz .total_error_0_is_0 - fld1 ; ST = 1.0 data_len - mov [esp], ebx - mov [esp + 4], eax ; [esp] = (FLAC__uint64)total_error_0 - mov ebx, [esp + 44] - fild qword [esp] ; ST = total_error_0 1.0 data_len - fdiv st2 ; ST = total_error_0/data_len 1.0 data_len - fldln2 ; ST = ln2 total_error_0/data_len 1.0 data_len - fmulp st1 ; ST = ln2*total_error_0/data_len 1.0 data_len - fyl2x ; ST = log2(ln2*total_error_0/data_len) data_len - fstp dword [ebx] ; residual_bits_per_sample[0] = log2(ln2*total_error_0/data_len) ST = data_len - jmp short .rbps_1 -.total_error_0_is_0: - mov ebx, [esp + 44] - mov [ebx], eax ; residual_bits_per_sample[0] = 0.0 -.rbps_1: - test ecx, ecx - jz .total_error_1_is_0 - fld1 ; ST = 1.0 data_len - mov [esp], ecx - mov [esp + 4], eax ; [esp] = (FLAC__uint64)total_error_1 - fild qword [esp] ; ST = total_error_1 1.0 data_len - fdiv st2 ; ST = total_error_1/data_len 1.0 data_len - fldln2 ; ST = ln2 total_error_1/data_len 1.0 data_len - fmulp st1 ; ST = ln2*total_error_1/data_len 1.0 data_len - fyl2x ; ST = log2(ln2*total_error_1/data_len) data_len - fstp dword [ebx + 4] ; residual_bits_per_sample[1] = log2(ln2*total_error_1/data_len) ST = data_len - jmp short .rbps_2 -.total_error_1_is_0: - mov [ebx + 4], eax ; residual_bits_per_sample[1] = 0.0 -.rbps_2: - test edx, edx - jz .total_error_2_is_0 - fld1 ; ST = 1.0 data_len - mov [esp], edx - mov [esp + 4], eax ; [esp] = (FLAC__uint64)total_error_2 - fild qword [esp] ; ST = total_error_2 1.0 data_len - fdiv st2 ; ST = total_error_2/data_len 1.0 data_len - fldln2 ; ST = ln2 total_error_2/data_len 1.0 data_len - fmulp st1 ; ST = ln2*total_error_2/data_len 1.0 data_len - fyl2x ; ST = log2(ln2*total_error_2/data_len) data_len - fstp dword [ebx + 8] ; residual_bits_per_sample[2] = log2(ln2*total_error_2/data_len) ST = data_len - jmp short .rbps_3 -.total_error_2_is_0: - mov [ebx + 8], eax ; residual_bits_per_sample[2] = 0.0 -.rbps_3: - test esi, esi - jz .total_error_3_is_0 - fld1 ; ST = 1.0 data_len - mov [esp], esi - mov [esp + 4], eax ; [esp] = (FLAC__uint64)total_error_3 - fild qword [esp] ; ST = total_error_3 1.0 data_len - fdiv st2 ; ST = total_error_3/data_len 1.0 data_len - fldln2 ; ST = ln2 total_error_3/data_len 1.0 data_len - fmulp st1 ; ST = ln2*total_error_3/data_len 1.0 data_len - fyl2x ; ST = log2(ln2*total_error_3/data_len) data_len - fstp dword [ebx + 12] ; residual_bits_per_sample[3] = log2(ln2*total_error_3/data_len) ST = data_len - jmp short .rbps_4 -.total_error_3_is_0: - mov [ebx + 12], eax ; residual_bits_per_sample[3] = 0.0 -.rbps_4: - test edi, edi - jz .total_error_4_is_0 - fld1 ; ST = 1.0 data_len - mov [esp], edi - mov [esp + 4], eax ; [esp] = (FLAC__uint64)total_error_4 - fild qword [esp] ; ST = total_error_4 1.0 data_len - fdiv st2 ; ST = total_error_4/data_len 1.0 data_len - fldln2 ; ST = ln2 total_error_4/data_len 1.0 data_len - fmulp st1 ; ST = ln2*total_error_4/data_len 1.0 data_len - fyl2x ; ST = log2(ln2*total_error_4/data_len) data_len - fstp dword [ebx + 16] ; residual_bits_per_sample[4] = log2(ln2*total_error_4/data_len) ST = data_len - jmp short .rbps_end -.total_error_4_is_0: - mov [ebx + 16], eax ; residual_bits_per_sample[4] = 0.0 -.rbps_end: - fstp st0 ; ST = [empty] - jmp short .end -.data_len_is_0: - ; data_len == 0, so residual_bits_per_sample[*] = 0.0 - xor ebp, ebp - mov edi, [esp + 44] - mov [edi], ebp - mov [edi + 4], ebp - mov [edi + 8], ebp - mov [edi + 12], ebp - mov [edi + 16], ebp - add ebp, byte 4 ; order = 4 - -.end: - mov eax, ebp ; return order - add esp, byte 16 - pop edi - pop esi - pop ebx - pop ebp - ret - -; end |