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Diffstat (limited to 'src/libFLAC/ppc/gas/lpc_asm.s')
| -rw-r--r-- | src/libFLAC/ppc/gas/lpc_asm.s | 432 |
1 files changed, 0 insertions, 432 deletions
diff --git a/src/libFLAC/ppc/gas/lpc_asm.s b/src/libFLAC/ppc/gas/lpc_asm.s deleted file mode 100644 index 77a72bb4..00000000 --- a/src/libFLAC/ppc/gas/lpc_asm.s +++ /dev/null @@ -1,432 +0,0 @@ -# libFLAC - Free Lossless Audio Codec library -# Copyright (C) 2004-2009 Josh Coalson -# Copyright (C) 2011-2013 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. - -.text - .align 2 -.globl _FLAC__lpc_restore_signal_asm_ppc_altivec_16 -.type _FLAC__lpc_restore_signal_asm_ppc_altivec_16, @function - -.globl _FLAC__lpc_restore_signal_asm_ppc_altivec_16_order8 -.type _FLAC__lpc_restore_signal_asm_ppc_altivec_16_order8, @function - -_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 r31,0,0xffff - ori r31,r31,0xfc00 - 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,L1307@ha - ori r31,r31,L1307@l - 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,L1306@ha - ori r31,r31,L1306@l - 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 - lis r31,L1305@ha - la r31,L1305@l(r31) - 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 - lis r31,L1304@ha - la r31,L1304@l(r31) - 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 - lis r31,L1303@ha - la r31,L1303@l(r31) - 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 - lis r31,L1302@ha - la r31,L1302@l(r31) - 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 - lis r31,L1301@ha - la r31,L1301@l(r31) - 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 - lis r31,L1300@ha - la r31,L1300@l(r31) - -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 r31,0,0xffc0 - ori r31,r31,0x0000 - 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 - lis r31,L2301@ha - la r31,L2301@l(r31) - 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 - lis r31,L2300@ha - la r31,L2300@l(r31) - -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 |