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244 lines
5 KiB
ArmAsm
244 lines
5 KiB
ArmAsm
/*
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synth_x86_64: SSE optimized synth for x86-64
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copyright 1995-2009 by the mpg123 project - free software under the terms of the LGPL 2.1
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see COPYING and AUTHORS files in distribution or http://mpg123.org
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initially written by Taihei Monma
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*/
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#include "mangle.h"
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#ifdef _WIN64
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/* short *window; */
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#define ARG0 %r10
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/* short *b0; */
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#define ARG1 %rdx
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/* short *samples; */
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#define ARG2 %r8
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/* int bo1; */
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#define ARG3 %r9
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#else
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/* short *window; */
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#define ARG0 %rdi
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/* short *b0; */
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#define ARG1 %rsi
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/* short *samples; */
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#define ARG2 %rdx
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/* int bo1; */
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#define ARG3 %rcx
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#endif
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#define XMMREG_CLIP %xmm15
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#define XMMREG_MAX %xmm14 /* {32767, 32767, 32767, 32767} */
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#define XMMREG_MIN %xmm13 /* {-32769, -32769, -32769, -32769} : not -32768 because SSE doesn't have "less than" comparison... */
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#define XMMREG_FULL %xmm12 /* {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF} */
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/*
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int synth_1to1_x86_64_asm(short *window, short *b0, short *samples, int bo1);
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return value: number of clipped samples
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*/
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#ifndef __APPLE__
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.section .rodata
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#else
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.data
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#endif
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ALIGN32
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ASM_NAME(maxmin_x86_64):
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.long 32767
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.long 32767
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.long 32767
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.long 32767
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.long -32769
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.long -32769
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.long -32769
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.long -32769
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.text
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ALIGN16
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.globl ASM_NAME(synth_1to1_x86_64_asm)
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ASM_NAME(synth_1to1_x86_64_asm):
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#ifdef _WIN64 /* should save xmm6-15 */
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movq %rcx, ARG0
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subq $104, %rsp /* stack alignment + 6 xmm registers */
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movaps %xmm6, (%rsp)
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movaps %xmm7, 16(%rsp)
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movaps %xmm12, 32(%rsp)
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movaps %xmm13, 48(%rsp)
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movaps %xmm14, 64(%rsp)
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movaps %xmm15, 80(%rsp)
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#endif
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leaq ASM_NAME(maxmin_x86_64)(%rip), %rax
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movaps (%rax), XMMREG_MAX
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movaps 16(%rax), XMMREG_MIN
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pxor XMMREG_CLIP, XMMREG_CLIP
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pcmpeqd XMMREG_FULL, XMMREG_FULL
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andq $0xf, ARG3
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shlq $1, ARG3
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leaq 32(ARG0), ARG0
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subq ARG3, ARG0
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movl $4, %ecx
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ALIGN16
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Loop_start_1:
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movups (ARG0), %xmm0
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movups 16(ARG0), %xmm1
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movups 64(ARG0), %xmm2
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movups 80(ARG0), %xmm3
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movups 128(ARG0), %xmm4
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movups 144(ARG0), %xmm5
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movups 192(ARG0), %xmm6
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movups 208(ARG0), %xmm7
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pmaddwd (ARG1), %xmm0
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pmaddwd 16(ARG1), %xmm1
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pmaddwd 32(ARG1), %xmm2
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pmaddwd 48(ARG1), %xmm3
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pmaddwd 64(ARG1), %xmm4
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pmaddwd 80(ARG1), %xmm5
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pmaddwd 96(ARG1), %xmm6
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pmaddwd 112(ARG1), %xmm7
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paddd %xmm1, %xmm0
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paddd %xmm3, %xmm2
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paddd %xmm5, %xmm4
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paddd %xmm7, %xmm6
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movaps %xmm0, %xmm1
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movaps %xmm4, %xmm3
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punpckldq %xmm2, %xmm0
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punpckldq %xmm6, %xmm4
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punpckhdq %xmm2, %xmm1
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punpckhdq %xmm6, %xmm3
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movaps %xmm0, %xmm5
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movaps %xmm1, %xmm7
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movlhps %xmm4, %xmm0
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movhlps %xmm5, %xmm4
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movlhps %xmm3, %xmm1
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movhlps %xmm7, %xmm3
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paddd %xmm4, %xmm0
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paddd %xmm3, %xmm1
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paddd %xmm1, %xmm0
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psrad $13, %xmm0
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movups (ARG2), %xmm3
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movaps %xmm0, %xmm1
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movaps %xmm0, %xmm2
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packssdw %xmm0, %xmm0
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pcmpgtd XMMREG_MAX, %xmm1
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pcmpgtd XMMREG_MIN, %xmm2
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movhlps %xmm3, %xmm4
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pshuflw $0xdd, %xmm3, %xmm3
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pshuflw $0xdd, %xmm4, %xmm4
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psrlq $32, %xmm3
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psllq $32, %xmm4
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por %xmm4, %xmm3
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punpcklwd %xmm3, %xmm0
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movups %xmm0, (ARG2)
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pxor XMMREG_FULL, %xmm2
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psrld $31, %xmm1
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psrld $31, %xmm2
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paddd %xmm2, %xmm1
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paddd %xmm1, XMMREG_CLIP
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leaq 256(ARG0), ARG0
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leaq 128(ARG1), ARG1
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leaq 16(ARG2), ARG2
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decl %ecx
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jnz Loop_start_1
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movl $4, %ecx
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ALIGN16
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Loop_start_2:
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movups (ARG0), %xmm0
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movups 16(ARG0), %xmm1
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movups 64(ARG0), %xmm2
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movups 80(ARG0), %xmm3
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movups 128(ARG0), %xmm4
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movups 144(ARG0), %xmm5
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movups 192(ARG0), %xmm6
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movups 208(ARG0), %xmm7
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pmaddwd (ARG1), %xmm0
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pmaddwd 16(ARG1), %xmm1
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pmaddwd -32(ARG1), %xmm2
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pmaddwd -16(ARG1), %xmm3
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pmaddwd -64(ARG1), %xmm4
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pmaddwd -48(ARG1), %xmm5
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pmaddwd -96(ARG1), %xmm6
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pmaddwd -80(ARG1), %xmm7
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paddd %xmm1, %xmm0
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paddd %xmm3, %xmm2
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paddd %xmm5, %xmm4
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paddd %xmm7, %xmm6
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movaps %xmm0, %xmm1
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movaps %xmm4, %xmm3
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punpckldq %xmm2, %xmm0
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punpckldq %xmm6, %xmm4
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punpckhdq %xmm2, %xmm1
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punpckhdq %xmm6, %xmm3
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movaps %xmm0, %xmm5
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movaps %xmm1, %xmm7
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movlhps %xmm4, %xmm0
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movhlps %xmm5, %xmm4
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movlhps %xmm3, %xmm1
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movhlps %xmm7, %xmm3
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paddd %xmm4, %xmm0
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paddd %xmm3, %xmm1
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paddd %xmm1, %xmm0
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psrad $13, %xmm0
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movups (ARG2), %xmm3
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movaps %xmm0, %xmm1
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movaps %xmm0, %xmm2
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packssdw %xmm0, %xmm0
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pcmpgtd XMMREG_MAX, %xmm1
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pcmpgtd XMMREG_MIN, %xmm2
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movhlps %xmm3, %xmm4
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pshuflw $0xdd, %xmm3, %xmm3
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pshuflw $0xdd, %xmm4, %xmm4
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psrlq $32, %xmm3
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psllq $32, %xmm4
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por %xmm4, %xmm3
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punpcklwd %xmm3, %xmm0
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movups %xmm0, (ARG2)
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pxor XMMREG_FULL, %xmm2
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psrld $31, %xmm1
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psrld $31, %xmm2
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paddd %xmm2, %xmm1
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paddd %xmm1, XMMREG_CLIP
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leaq 256(ARG0), ARG0
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leaq -128(ARG1), ARG1
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leaq 16(ARG2), ARG2
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decl %ecx
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jnz Loop_start_2
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pshuflw $0xee, XMMREG_CLIP, %xmm0
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movhlps XMMREG_CLIP, %xmm1
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pshuflw $0xee, %xmm1, %xmm2
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paddd %xmm0, XMMREG_CLIP
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paddd %xmm1, XMMREG_CLIP
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paddd %xmm2, XMMREG_CLIP
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movd XMMREG_CLIP, %eax
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#ifdef _WIN64
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movaps (%rsp), %xmm6
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movaps 16(%rsp), %xmm7
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movaps 32(%rsp), %xmm12
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movaps 48(%rsp), %xmm13
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movaps 64(%rsp), %xmm14
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movaps 80(%rsp), %xmm15
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addq $104, %rsp
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#endif
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ret
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NONEXEC_STACK
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