dos2unix it, remove unmatched single quotes in comments (whatever way ProjectBuilder calls "as" chokes on them)
This commit is contained in:
Josh Coalson
parent
a7ffb0ce9c
commit
52f8f77844
@ -1,428 +1,428 @@
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; libFLAC - Free Lossless Audio Codec library
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; Copyright (C) 2004 Josh Coalson
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;
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; Redistribution and use in source and binary forms, with or without
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; modification, are permitted provided that the following conditions
|
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; are met:
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;
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; - Redistributions of source code must retain the above copyright
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; notice, this list of conditions and the following disclaimer.
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;
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; - Redistributions in binary form must reproduce the above copyright
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; notice, this list of conditions and the following disclaimer in the
|
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; documentation and/or other materials provided with the distribution.
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;
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; - Neither the name of the Xiph.org Foundation nor the names of its
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; contributors may be used to endorse or promote products derived from
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; this software without specific prior written permission.
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;
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; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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; ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
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; CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.text
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.align 2
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.globl _FLAC__lpc_restore_signal_asm_ppc_altivec_16
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.globl _FLAC__lpc_restore_signal_asm_ppc_altivec_16_order8
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_FLAC__lpc_restore_signal_asm_ppc_altivec_16:
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; r3: residual[]
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; r4: data_len
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; r5: qlp_coeff[]
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; r6: order
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; r7: lp_quantization
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; r8: data[]
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; see src/libFLAC/lpc.c:FLAC__lpc_restore_signal()
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; these is a PowerPC/Altivec assembly version which requires bps<=16 (or actual
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; bps<=15 for mid-side coding, since that uses an extra bit)
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; these should be fast; the inner loop is unrolled (it takes no more than
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; 3*(order%4) instructions, all of which are arithmetic), and all of the
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; coefficients and all relevant history stay in registers, so the outer loop
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; has only one load from memory (the residual)
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; I haven't yet run this through simg4, so there may be some avoidable stalls,
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; and there may be a somewhat more clever way to do the outer loop
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; the branch mechanism may prevent dynamic loading; I still need to examine
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; this issue, and there may be a more elegant method
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stmw r31,-4(r1)
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addi r9,r1,-28
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li r31,0xf
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andc r9,r9,r31 ; for quadword-aligned stack data
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slwi r6,r6,2 ; adjust for word size
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slwi r4,r4,2
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add r4,r4,r8 ; r4 = data+data_len
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mfspr r0,256 ; cache old vrsave
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addis r31,0,hi16(0xfffffc00)
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ori r31,r31,lo16(0xfffffc00)
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mtspr 256,r31 ; declare VRs in vrsave
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cmplw cr0,r8,r4 ; i<data_len
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bc 4,0,L1400
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; load coefficients into v0-v7 and initial history into v8-v15
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li r31,0xf
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and r31,r8,r31 ; r31: data%4
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li r11,16
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subf r31,r31,r11 ; r31: 4-(data%4)
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slwi r31,r31,3 ; convert to bits for vsro
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li r10,-4
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stw r31,-4(r9)
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lvewx v0,r10,r9
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vspltisb v18,-1
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vsro v18,v18,v0 ; v18: mask vector
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li r31,0x8
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lvsl v0,0,r31
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vsldoi v0,v0,v0,12
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li r31,0xc
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lvsl v1,0,r31
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vspltisb v2,0
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vspltisb v3,-1
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vmrglw v2,v2,v3
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vsel v0,v1,v0,v2 ; v0: reversal permutation vector
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add r10,r5,r6
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lvsl v17,0,r5 ; v17: coefficient alignment permutation vector
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vperm v17,v17,v17,v0 ; v17: reversal coefficient alignment permutation vector
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mr r11,r8
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lvsl v16,0,r11 ; v16: history alignment permutation vector
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lvx v0,0,r5
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addi r5,r5,16
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lvx v1,0,r5
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vperm v0,v0,v1,v17
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lvx v8,0,r11
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addi r11,r11,-16
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lvx v9,0,r11
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vperm v8,v9,v8,v16
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cmplw cr0,r5,r10
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bc 12,0,L1101
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vand v0,v0,v18
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addis r31,0,hi16(L1307)
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ori r31,r31,lo16(L1307)
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b L1199
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L1101:
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addi r5,r5,16
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lvx v2,0,r5
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vperm v1,v1,v2,v17
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addi r11,r11,-16
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lvx v10,0,r11
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vperm v9,v10,v9,v16
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cmplw cr0,r5,r10
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bc 12,0,L1102
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vand v1,v1,v18
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addis r31,0,hi16(L1306)
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ori r31,r31,lo16(L1306)
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b L1199
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L1102:
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addi r5,r5,16
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lvx v3,0,r5
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vperm v2,v2,v3,v17
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addi r11,r11,-16
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lvx v11,0,r11
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vperm v10,v11,v10,v16
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cmplw cr0,r5,r10
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bc 12,0,L1103
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vand v2,v2,v18
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addis r31,0,hi16(L1305)
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ori r31,r31,lo16(L1305)
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b L1199
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L1103:
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addi r5,r5,16
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lvx v4,0,r5
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vperm v3,v3,v4,v17
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addi r11,r11,-16
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lvx v12,0,r11
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vperm v11,v12,v11,v16
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cmplw cr0,r5,r10
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bc 12,0,L1104
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vand v3,v3,v18
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addis r31,0,hi16(L1304)
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ori r31,r31,lo16(L1304)
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b L1199
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L1104:
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addi r5,r5,16
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lvx v5,0,r5
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vperm v4,v4,v5,v17
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addi r11,r11,-16
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lvx v13,0,r11
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vperm v12,v13,v12,v16
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cmplw cr0,r5,r10
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bc 12,0,L1105
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vand v4,v4,v18
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addis r31,0,hi16(L1303)
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ori r31,r31,lo16(L1303)
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b L1199
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L1105:
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addi r5,r5,16
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lvx v6,0,r5
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vperm v5,v5,v6,v17
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addi r11,r11,-16
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lvx v14,0,r11
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vperm v13,v14,v13,v16
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cmplw cr0,r5,r10
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bc 12,0,L1106
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vand v5,v5,v18
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addis r31,0,hi16(L1302)
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ori r31,r31,lo16(L1302)
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b L1199
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L1106:
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addi r5,r5,16
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lvx v7,0,r5
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vperm v6,v6,v7,v17
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addi r11,r11,-16
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lvx v15,0,r11
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vperm v14,v15,v14,v16
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cmplw cr0,r5,r10
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bc 12,0,L1107
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vand v6,v6,v18
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addis r31,0,hi16(L1301)
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ori r31,r31,lo16(L1301)
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b L1199
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L1107:
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addi r5,r5,16
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lvx v19,0,r5
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vperm v7,v7,v19,v17
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addi r11,r11,-16
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lvx v19,0,r11
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vperm v15,v19,v15,v16
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vand v7,v7,v18
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addis r31,0,hi16(L1300)
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ori r31,r31,lo16(L1300)
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L1199:
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mtctr r31
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; set up invariant vectors
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vspltish v16,0 ; v16: zero vector
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li r10,-12
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lvsr v17,r10,r8 ; v17: result shift vector
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lvsl v18,r10,r3 ; v18: residual shift back vector
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li r10,-4
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stw r7,-4(r9)
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lvewx v19,r10,r9 ; v19: lp_quantization vector
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L1200:
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vmulosh v20,v0,v8 ; v20: sum vector
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bcctr 20,0
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L1300:
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vmulosh v21,v7,v15
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vsldoi v15,v15,v14,4 ; increment history
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vaddsws v20,v20,v21
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L1301:
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vmulosh v21,v6,v14
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vsldoi v14,v14,v13,4
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vaddsws v20,v20,v21
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L1302:
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vmulosh v21,v5,v13
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vsldoi v13,v13,v12,4
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vaddsws v20,v20,v21
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L1303:
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vmulosh v21,v4,v12
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vsldoi v12,v12,v11,4
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vaddsws v20,v20,v21
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L1304:
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vmulosh v21,v3,v11
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vsldoi v11,v11,v10,4
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vaddsws v20,v20,v21
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L1305:
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vmulosh v21,v2,v10
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vsldoi v10,v10,v9,4
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vaddsws v20,v20,v21
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L1306:
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vmulosh v21,v1,v9
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vsldoi v9,v9,v8,4
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vaddsws v20,v20,v21
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L1307:
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vsumsws v20,v20,v16 ; v20[3]: sum
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vsraw v20,v20,v19 ; v20[3]: sum >> lp_quantization
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lvewx v21,0,r3 ; v21[n]: *residual
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vperm v21,v21,v21,v18 ; v21[3]: *residual
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vaddsws v20,v21,v20 ; v20[3]: *residual + (sum >> lp_quantization)
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vsldoi v18,v18,v18,4 ; increment shift vector
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vperm v21,v20,v20,v17 ; v21[n]: shift for storage
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vsldoi v17,v17,v17,12 ; increment shift vector
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stvewx v21,0,r8
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vsldoi v20,v20,v20,12
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vsldoi v8,v8,v20,4 ; insert value onto history
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addi r3,r3,4
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addi r8,r8,4
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cmplw cr0,r8,r4 ; i<data_len
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bc 12,0,L1200
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L1400:
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mtspr 256,r0 ; restore old vrsave
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lmw r31,-4(r1)
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blr
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_FLAC__lpc_restore_signal_asm_ppc_altivec_16_order8:
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; r3: residual[]
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; r4: data_len
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; r5: qlp_coeff[]
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; r6: order
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; r7: lp_quantization
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; r8: data[]
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; see _FLAC__lpc_restore_signal_asm_ppc_altivec_16() above
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; this version assumes order<=8; it uses fewer vector registers, which should
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; save time in context switches, and has less code, which may improve
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; instruction caching
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stmw r31,-4(r1)
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addi r9,r1,-28
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li r31,0xf
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andc r9,r9,r31 ; for quadword-aligned stack data
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slwi r6,r6,2 ; adjust for word size
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slwi r4,r4,2
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add r4,r4,r8 ; r4 = data+data_len
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mfspr r0,256 ; cache old vrsave
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addis r31,0,hi16(0xffc00000)
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ori r31,r31,lo16(0xffc00000)
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mtspr 256,r31 ; declare VRs in vrsave
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cmplw cr0,r8,r4 ; i<data_len
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bc 4,0,L2400
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; load coefficients into v0-v1 and initial history into v2-v3
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li r31,0xf
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and r31,r8,r31 ; r31: data%4
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li r11,16
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subf r31,r31,r11 ; r31: 4-(data%4)
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slwi r31,r31,3 ; convert to bits for vsro
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li r10,-4
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stw r31,-4(r9)
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lvewx v0,r10,r9
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vspltisb v6,-1
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vsro v6,v6,v0 ; v6: mask vector
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li r31,0x8
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lvsl v0,0,r31
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vsldoi v0,v0,v0,12
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li r31,0xc
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lvsl v1,0,r31
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vspltisb v2,0
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vspltisb v3,-1
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vmrglw v2,v2,v3
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vsel v0,v1,v0,v2 ; v0: reversal permutation vector
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|
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add r10,r5,r6
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lvsl v5,0,r5 ; v5: coefficient alignment permutation vector
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vperm v5,v5,v5,v0 ; v5: reversal coefficient alignment permutation vector
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|
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mr r11,r8
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lvsl v4,0,r11 ; v4: history alignment permutation vector
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lvx v0,0,r5
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addi r5,r5,16
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lvx v1,0,r5
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vperm v0,v0,v1,v5
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lvx v2,0,r11
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addi r11,r11,-16
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lvx v3,0,r11
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vperm v2,v3,v2,v4
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cmplw cr0,r5,r10
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bc 12,0,L2101
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vand v0,v0,v6
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addis r31,0,hi16(L2301)
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ori r31,r31,lo16(L2301)
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b L2199
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L2101:
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addi r5,r5,16
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lvx v7,0,r5
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vperm v1,v1,v7,v5
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addi r11,r11,-16
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lvx v7,0,r11
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vperm v3,v7,v3,v4
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vand v1,v1,v6
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addis r31,0,hi16(L2300)
|
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ori r31,r31,lo16(L2300)
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|
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L2199:
|
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mtctr r31
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|
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; set up invariant vectors
|
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vspltish v4,0 ; v4: zero vector
|
||||
|
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li r10,-12
|
||||
lvsr v5,r10,r8 ; v5: result shift vector
|
||||
lvsl v6,r10,r3 ; v6: residual shift back vector
|
||||
|
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li r10,-4
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stw r7,-4(r9)
|
||||
lvewx v7,r10,r9 ; v7: lp_quantization vector
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||||
|
||||
L2200:
|
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vmulosh v8,v0,v2 ; v8: sum vector
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bcctr 20,0
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|
||||
L2300:
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||||
vmulosh v9,v1,v3
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vsldoi v3,v3,v2,4
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vaddsws v8,v8,v9
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|
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L2301:
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vsumsws v8,v8,v4 ; v8[3]: sum
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vsraw v8,v8,v7 ; v8[3]: sum >> lp_quantization
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lvewx v9,0,r3 ; v9[n]: *residual
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vperm v9,v9,v9,v6 ; v9[3]: *residual
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vaddsws v8,v9,v8 ; v8[3]: *residual + (sum >> lp_quantization)
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||||
vsldoi v6,v6,v6,4 ; increment shift vector
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||||
|
||||
vperm v9,v8,v8,v5 ; v9[n]: shift for storage
|
||||
vsldoi v5,v5,v5,12 ; increment shift vector
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stvewx v9,0,r8
|
||||
|
||||
vsldoi v8,v8,v8,12
|
||||
vsldoi v2,v2,v8,4 ; insert value onto history
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||||
|
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addi r3,r3,4
|
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addi r8,r8,4
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||||
cmplw cr0,r8,r4 ; i<data_len
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bc 12,0,L2200
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|
||||
L2400:
|
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mtspr 256,r0 ; restore old vrsave
|
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lmw r31,-4(r1)
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blr
|
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; libFLAC - Free Lossless Audio Codec library
|
||||
; Copyright (C) 2004 Josh Coalson
|
||||
;
|
||||
; 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.
|
||||
|
||||
.text
|
||||
.align 2
|
||||
.globl _FLAC__lpc_restore_signal_asm_ppc_altivec_16
|
||||
.globl _FLAC__lpc_restore_signal_asm_ppc_altivec_16_order8
|
||||
|
||||
_FLAC__lpc_restore_signal_asm_ppc_altivec_16:
|
||||
; r3: residual[]
|
||||
; r4: data_len
|
||||
; r5: qlp_coeff[]
|
||||
; r6: order
|
||||
; r7: lp_quantization
|
||||
; r8: data[]
|
||||
|
||||
; see src/libFLAC/lpc.c:FLAC__lpc_restore_signal()
|
||||
; these is a PowerPC/Altivec assembly version which requires bps<=16 (or actual
|
||||
; bps<=15 for mid-side coding, since that uses an extra bit)
|
||||
|
||||
; these should be fast; the inner loop is unrolled (it takes no more than
|
||||
; 3*(order%4) instructions, all of which are arithmetic), and all of the
|
||||
; coefficients and all relevant history stay in registers, so the outer loop
|
||||
; has only one load from memory (the residual)
|
||||
|
||||
; I have not yet run this through simg4, so there may be some avoidable stalls,
|
||||
; and there may be a somewhat more clever way to do the outer loop
|
||||
|
||||
; the branch mechanism may prevent dynamic loading; I still need to examine
|
||||
; this issue, and there may be a more elegant method
|
||||
|
||||
stmw r31,-4(r1)
|
||||
|
||||
addi r9,r1,-28
|
||||
li r31,0xf
|
||||
andc r9,r9,r31 ; for quadword-aligned stack data
|
||||
|
||||
slwi r6,r6,2 ; adjust for word size
|
||||
slwi r4,r4,2
|
||||
add r4,r4,r8 ; r4 = data+data_len
|
||||
|
||||
mfspr r0,256 ; cache old vrsave
|
||||
addis r31,0,hi16(0xfffffc00)
|
||||
ori r31,r31,lo16(0xfffffc00)
|
||||
mtspr 256,r31 ; declare VRs in vrsave
|
||||
|
||||
cmplw cr0,r8,r4 ; i<data_len
|
||||
bc 4,0,L1400
|
||||
|
||||
; load coefficients into v0-v7 and initial history into v8-v15
|
||||
li r31,0xf
|
||||
and r31,r8,r31 ; r31: data%4
|
||||
li r11,16
|
||||
subf r31,r31,r11 ; r31: 4-(data%4)
|
||||
slwi r31,r31,3 ; convert to bits for vsro
|
||||
li r10,-4
|
||||
stw r31,-4(r9)
|
||||
lvewx v0,r10,r9
|
||||
vspltisb v18,-1
|
||||
vsro v18,v18,v0 ; v18: mask vector
|
||||
|
||||
li r31,0x8
|
||||
lvsl v0,0,r31
|
||||
vsldoi v0,v0,v0,12
|
||||
li r31,0xc
|
||||
lvsl v1,0,r31
|
||||
vspltisb v2,0
|
||||
vspltisb v3,-1
|
||||
vmrglw v2,v2,v3
|
||||
vsel v0,v1,v0,v2 ; v0: reversal permutation vector
|
||||
|
||||
add r10,r5,r6
|
||||
lvsl v17,0,r5 ; v17: coefficient alignment permutation vector
|
||||
vperm v17,v17,v17,v0 ; v17: reversal coefficient alignment permutation vector
|
||||
|
||||
mr r11,r8
|
||||
lvsl v16,0,r11 ; v16: history alignment permutation vector
|
||||
|
||||
lvx v0,0,r5
|
||||
addi r5,r5,16
|
||||
lvx v1,0,r5
|
||||
vperm v0,v0,v1,v17
|
||||
lvx v8,0,r11
|
||||
addi r11,r11,-16
|
||||
lvx v9,0,r11
|
||||
vperm v8,v9,v8,v16
|
||||
cmplw cr0,r5,r10
|
||||
bc 12,0,L1101
|
||||
vand v0,v0,v18
|
||||
addis r31,0,hi16(L1307)
|
||||
ori r31,r31,lo16(L1307)
|
||||
b L1199
|
||||
|
||||
L1101:
|
||||
addi r5,r5,16
|
||||
lvx v2,0,r5
|
||||
vperm v1,v1,v2,v17
|
||||
addi r11,r11,-16
|
||||
lvx v10,0,r11
|
||||
vperm v9,v10,v9,v16
|
||||
cmplw cr0,r5,r10
|
||||
bc 12,0,L1102
|
||||
vand v1,v1,v18
|
||||
addis r31,0,hi16(L1306)
|
||||
ori r31,r31,lo16(L1306)
|
||||
b L1199
|
||||
|
||||
L1102:
|
||||
addi r5,r5,16
|
||||
lvx v3,0,r5
|
||||
vperm v2,v2,v3,v17
|
||||
addi r11,r11,-16
|
||||
lvx v11,0,r11
|
||||
vperm v10,v11,v10,v16
|
||||
cmplw cr0,r5,r10
|
||||
bc 12,0,L1103
|
||||
vand v2,v2,v18
|
||||
addis r31,0,hi16(L1305)
|
||||
ori r31,r31,lo16(L1305)
|
||||
b L1199
|
||||
|
||||
L1103:
|
||||
addi r5,r5,16
|
||||
lvx v4,0,r5
|
||||
vperm v3,v3,v4,v17
|
||||
addi r11,r11,-16
|
||||
lvx v12,0,r11
|
||||
vperm v11,v12,v11,v16
|
||||
cmplw cr0,r5,r10
|
||||
bc 12,0,L1104
|
||||
vand v3,v3,v18
|
||||
addis r31,0,hi16(L1304)
|
||||
ori r31,r31,lo16(L1304)
|
||||
b L1199
|
||||
|
||||
L1104:
|
||||
addi r5,r5,16
|
||||
lvx v5,0,r5
|
||||
vperm v4,v4,v5,v17
|
||||
addi r11,r11,-16
|
||||
lvx v13,0,r11
|
||||
vperm v12,v13,v12,v16
|
||||
cmplw cr0,r5,r10
|
||||
bc 12,0,L1105
|
||||
vand v4,v4,v18
|
||||
addis r31,0,hi16(L1303)
|
||||
ori r31,r31,lo16(L1303)
|
||||
b L1199
|
||||
|
||||
L1105:
|
||||
addi r5,r5,16
|
||||
lvx v6,0,r5
|
||||
vperm v5,v5,v6,v17
|
||||
addi r11,r11,-16
|
||||
lvx v14,0,r11
|
||||
vperm v13,v14,v13,v16
|
||||
cmplw cr0,r5,r10
|
||||
bc 12,0,L1106
|
||||
vand v5,v5,v18
|
||||
addis r31,0,hi16(L1302)
|
||||
ori r31,r31,lo16(L1302)
|
||||
b L1199
|
||||
|
||||
L1106:
|
||||
addi r5,r5,16
|
||||
lvx v7,0,r5
|
||||
vperm v6,v6,v7,v17
|
||||
addi r11,r11,-16
|
||||
lvx v15,0,r11
|
||||
vperm v14,v15,v14,v16
|
||||
cmplw cr0,r5,r10
|
||||
bc 12,0,L1107
|
||||
vand v6,v6,v18
|
||||
addis r31,0,hi16(L1301)
|
||||
ori r31,r31,lo16(L1301)
|
||||
b L1199
|
||||
|
||||
L1107:
|
||||
addi r5,r5,16
|
||||
lvx v19,0,r5
|
||||
vperm v7,v7,v19,v17
|
||||
addi r11,r11,-16
|
||||
lvx v19,0,r11
|
||||
vperm v15,v19,v15,v16
|
||||
vand v7,v7,v18
|
||||
addis r31,0,hi16(L1300)
|
||||
ori r31,r31,lo16(L1300)
|
||||
|
||||
L1199:
|
||||
mtctr r31
|
||||
|
||||
; set up invariant vectors
|
||||
vspltish v16,0 ; v16: zero vector
|
||||
|
||||
li r10,-12
|
||||
lvsr v17,r10,r8 ; v17: result shift vector
|
||||
lvsl v18,r10,r3 ; v18: residual shift back vector
|
||||
|
||||
li r10,-4
|
||||
stw r7,-4(r9)
|
||||
lvewx v19,r10,r9 ; v19: lp_quantization vector
|
||||
|
||||
L1200:
|
||||
vmulosh v20,v0,v8 ; v20: sum vector
|
||||
bcctr 20,0
|
||||
|
||||
L1300:
|
||||
vmulosh v21,v7,v15
|
||||
vsldoi v15,v15,v14,4 ; increment history
|
||||
vaddsws v20,v20,v21
|
||||
|
||||
L1301:
|
||||
vmulosh v21,v6,v14
|
||||
vsldoi v14,v14,v13,4
|
||||
vaddsws v20,v20,v21
|
||||
|
||||
L1302:
|
||||
vmulosh v21,v5,v13
|
||||
vsldoi v13,v13,v12,4
|
||||
vaddsws v20,v20,v21
|
||||
|
||||
L1303:
|
||||
vmulosh v21,v4,v12
|
||||
vsldoi v12,v12,v11,4
|
||||
vaddsws v20,v20,v21
|
||||
|
||||
L1304:
|
||||
vmulosh v21,v3,v11
|
||||
vsldoi v11,v11,v10,4
|
||||
vaddsws v20,v20,v21
|
||||
|
||||
L1305:
|
||||
vmulosh v21,v2,v10
|
||||
vsldoi v10,v10,v9,4
|
||||
vaddsws v20,v20,v21
|
||||
|
||||
L1306:
|
||||
vmulosh v21,v1,v9
|
||||
vsldoi v9,v9,v8,4
|
||||
vaddsws v20,v20,v21
|
||||
|
||||
L1307:
|
||||
vsumsws v20,v20,v16 ; v20[3]: sum
|
||||
vsraw v20,v20,v19 ; v20[3]: sum >> lp_quantization
|
||||
|
||||
lvewx v21,0,r3 ; v21[n]: *residual
|
||||
vperm v21,v21,v21,v18 ; v21[3]: *residual
|
||||
vaddsws v20,v21,v20 ; v20[3]: *residual + (sum >> lp_quantization)
|
||||
vsldoi v18,v18,v18,4 ; increment shift vector
|
||||
|
||||
vperm v21,v20,v20,v17 ; v21[n]: shift for storage
|
||||
vsldoi v17,v17,v17,12 ; increment shift vector
|
||||
stvewx v21,0,r8
|
||||
|
||||
vsldoi v20,v20,v20,12
|
||||
vsldoi v8,v8,v20,4 ; insert value onto history
|
||||
|
||||
addi r3,r3,4
|
||||
addi r8,r8,4
|
||||
cmplw cr0,r8,r4 ; i<data_len
|
||||
bc 12,0,L1200
|
||||
|
||||
L1400:
|
||||
mtspr 256,r0 ; restore old vrsave
|
||||
lmw r31,-4(r1)
|
||||
blr
|
||||
|
||||
_FLAC__lpc_restore_signal_asm_ppc_altivec_16_order8:
|
||||
; r3: residual[]
|
||||
; r4: data_len
|
||||
; r5: qlp_coeff[]
|
||||
; r6: order
|
||||
; r7: lp_quantization
|
||||
; r8: data[]
|
||||
|
||||
; see _FLAC__lpc_restore_signal_asm_ppc_altivec_16() above
|
||||
; this version assumes order<=8; it uses fewer vector registers, which should
|
||||
; save time in context switches, and has less code, which may improve
|
||||
; instruction caching
|
||||
|
||||
stmw r31,-4(r1)
|
||||
|
||||
addi r9,r1,-28
|
||||
li r31,0xf
|
||||
andc r9,r9,r31 ; for quadword-aligned stack data
|
||||
|
||||
slwi r6,r6,2 ; adjust for word size
|
||||
slwi r4,r4,2
|
||||
add r4,r4,r8 ; r4 = data+data_len
|
||||
|
||||
mfspr r0,256 ; cache old vrsave
|
||||
addis r31,0,hi16(0xffc00000)
|
||||
ori r31,r31,lo16(0xffc00000)
|
||||
mtspr 256,r31 ; declare VRs in vrsave
|
||||
|
||||
cmplw cr0,r8,r4 ; i<data_len
|
||||
bc 4,0,L2400
|
||||
|
||||
; load coefficients into v0-v1 and initial history into v2-v3
|
||||
li r31,0xf
|
||||
and r31,r8,r31 ; r31: data%4
|
||||
li r11,16
|
||||
subf r31,r31,r11 ; r31: 4-(data%4)
|
||||
slwi r31,r31,3 ; convert to bits for vsro
|
||||
li r10,-4
|
||||
stw r31,-4(r9)
|
||||
lvewx v0,r10,r9
|
||||
vspltisb v6,-1
|
||||
vsro v6,v6,v0 ; v6: mask vector
|
||||
|
||||
li r31,0x8
|
||||
lvsl v0,0,r31
|
||||
vsldoi v0,v0,v0,12
|
||||
li r31,0xc
|
||||
lvsl v1,0,r31
|
||||
vspltisb v2,0
|
||||
vspltisb v3,-1
|
||||
vmrglw v2,v2,v3
|
||||
vsel v0,v1,v0,v2 ; v0: reversal permutation vector
|
||||
|
||||
add r10,r5,r6
|
||||
lvsl v5,0,r5 ; v5: coefficient alignment permutation vector
|
||||
vperm v5,v5,v5,v0 ; v5: reversal coefficient alignment permutation vector
|
||||
|
||||
mr r11,r8
|
||||
lvsl v4,0,r11 ; v4: history alignment permutation vector
|
||||
|
||||
lvx v0,0,r5
|
||||
addi r5,r5,16
|
||||
lvx v1,0,r5
|
||||
vperm v0,v0,v1,v5
|
||||
lvx v2,0,r11
|
||||
addi r11,r11,-16
|
||||
lvx v3,0,r11
|
||||
vperm v2,v3,v2,v4
|
||||
cmplw cr0,r5,r10
|
||||
bc 12,0,L2101
|
||||
vand v0,v0,v6
|
||||
addis r31,0,hi16(L2301)
|
||||
ori r31,r31,lo16(L2301)
|
||||
b L2199
|
||||
|
||||
L2101:
|
||||
addi r5,r5,16
|
||||
lvx v7,0,r5
|
||||
vperm v1,v1,v7,v5
|
||||
addi r11,r11,-16
|
||||
lvx v7,0,r11
|
||||
vperm v3,v7,v3,v4
|
||||
vand v1,v1,v6
|
||||
addis r31,0,hi16(L2300)
|
||||
ori r31,r31,lo16(L2300)
|
||||
|
||||
L2199:
|
||||
mtctr r31
|
||||
|
||||
; set up invariant vectors
|
||||
vspltish v4,0 ; v4: zero vector
|
||||
|
||||
li r10,-12
|
||||
lvsr v5,r10,r8 ; v5: result shift vector
|
||||
lvsl v6,r10,r3 ; v6: residual shift back vector
|
||||
|
||||
li r10,-4
|
||||
stw r7,-4(r9)
|
||||
lvewx v7,r10,r9 ; v7: lp_quantization vector
|
||||
|
||||
L2200:
|
||||
vmulosh v8,v0,v2 ; v8: sum vector
|
||||
bcctr 20,0
|
||||
|
||||
L2300:
|
||||
vmulosh v9,v1,v3
|
||||
vsldoi v3,v3,v2,4
|
||||
vaddsws v8,v8,v9
|
||||
|
||||
L2301:
|
||||
vsumsws v8,v8,v4 ; v8[3]: sum
|
||||
vsraw v8,v8,v7 ; v8[3]: sum >> lp_quantization
|
||||
|
||||
lvewx v9,0,r3 ; v9[n]: *residual
|
||||
vperm v9,v9,v9,v6 ; v9[3]: *residual
|
||||
vaddsws v8,v9,v8 ; v8[3]: *residual + (sum >> lp_quantization)
|
||||
vsldoi v6,v6,v6,4 ; increment shift vector
|
||||
|
||||
vperm v9,v8,v8,v5 ; v9[n]: shift for storage
|
||||
vsldoi v5,v5,v5,12 ; increment shift vector
|
||||
stvewx v9,0,r8
|
||||
|
||||
vsldoi v8,v8,v8,12
|
||||
vsldoi v2,v2,v8,4 ; insert value onto history
|
||||
|
||||
addi r3,r3,4
|
||||
addi r8,r8,4
|
||||
cmplw cr0,r8,r4 ; i<data_len
|
||||
bc 12,0,L2200
|
||||
|
||||
L2400:
|
||||
mtspr 256,r0 ; restore old vrsave
|
||||
lmw r31,-4(r1)
|
||||
blr
|
||||
|
||||
Loading…
Reference in New Issue
Block a user