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/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-dsp-lib
* Created on: 31 мар. 2020 г.
*
* lsp-dsp-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-dsp-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-dsp-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef PRIVATE_DSP_ARCH_X86_SSE3_COPY_H_
#define PRIVATE_DSP_ARCH_X86_SSE3_COPY_H_
#ifndef PRIVATE_DSP_ARCH_X86_SSE3_IMPL
#error "This header should not be included directly"
#endif /* PRIVATE_DSP_ARCH_X86_SSE3_IMPL */
namespace lsp
{
namespace sse3
{
void copy(float *dst, const float *src, size_t count)
{
IF_ARCH_X86(size_t off);
ARCH_X86_ASM
(
__ASM_EMIT("cmp %[dst], %[src]")
__ASM_EMIT("je 10f")
/* Destination is aligned */
__ASM_EMIT("xor %[off], %[off]")
__ASM_EMIT("sub $0x20, %[count]")
__ASM_EMIT("jb 2f")
/* Block of 32 items */
__ASM_EMIT("1:")
__ASM_EMIT("lddqu 0x00(%[src], %[off]), %%xmm0")
__ASM_EMIT("lddqu 0x10(%[src], %[off]), %%xmm1")
__ASM_EMIT("lddqu 0x20(%[src], %[off]), %%xmm2")
__ASM_EMIT("lddqu 0x30(%[src], %[off]), %%xmm3")
__ASM_EMIT("lddqu 0x40(%[src], %[off]), %%xmm4")
__ASM_EMIT("lddqu 0x50(%[src], %[off]), %%xmm5")
__ASM_EMIT("lddqu 0x60(%[src], %[off]), %%xmm6")
__ASM_EMIT("lddqu 0x70(%[src], %[off]), %%xmm7")
__ASM_EMIT("movdqu %%xmm0, 0x00(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm1, 0x10(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm2, 0x20(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm3, 0x30(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm4, 0x40(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm5, 0x50(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm6, 0x60(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm7, 0x70(%[dst], %[off])")
__ASM_EMIT("add $0x80, %[off]")
__ASM_EMIT("sub $0x20, %[count]")
__ASM_EMIT("jae 1b")
/* Block of 16 items */
__ASM_EMIT("2:")
__ASM_EMIT("add $0x10, %[count]")
__ASM_EMIT("jl 4f")
__ASM_EMIT("lddqu 0x00(%[src], %[off]), %%xmm0")
__ASM_EMIT("lddqu 0x10(%[src], %[off]), %%xmm1")
__ASM_EMIT("lddqu 0x20(%[src], %[off]), %%xmm2")
__ASM_EMIT("lddqu 0x30(%[src], %[off]), %%xmm3")
__ASM_EMIT("movdqu %%xmm0, 0x00(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm1, 0x10(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm2, 0x20(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm3, 0x30(%[dst], %[off])")
__ASM_EMIT("add $0x40, %[off]")
__ASM_EMIT("sub $0x10, %[count]")
/* Block of 8 items */
__ASM_EMIT("4:")
__ASM_EMIT("add $0x08, %[count]")
__ASM_EMIT("jl 6f")
__ASM_EMIT("lddqu 0x00(%[src], %[off]), %%xmm0")
__ASM_EMIT("lddqu 0x10(%[src], %[off]), %%xmm1")
__ASM_EMIT("movdqu %%xmm0, 0x00(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm1, 0x10(%[dst], %[off])")
__ASM_EMIT("add $0x20, %[off]")
__ASM_EMIT("sub $0x08, %[count]")
/* Block of 4 items */
__ASM_EMIT("6:")
__ASM_EMIT("add $0x04, %[count]")
__ASM_EMIT("jl 8f")
__ASM_EMIT("lddqu 0x00(%[src], %[off]), %%xmm0")
__ASM_EMIT("movdqu %%xmm0, 0x00(%[dst], %[off])")
__ASM_EMIT("add $0x10, %[off]")
__ASM_EMIT("sub $0x04, %[count]")
/* 1x items */
__ASM_EMIT("8:")
__ASM_EMIT("add $0x03, %[count]")
__ASM_EMIT("jl 10f")
__ASM_EMIT("9:")
__ASM_EMIT("movss 0x00(%[src], %[off]), %%xmm0")
__ASM_EMIT("movss %%xmm0, 0x00(%[dst], %[off])")
__ASM_EMIT("add $0x04, %[off]")
__ASM_EMIT("dec %[count]")
__ASM_EMIT("jge 9b")
__ASM_EMIT("10:")
: [src] "+r" (src), [dst] "+r"(dst),
[count] "+r" (count), [off] "=&r" (off)
:
: "cc", "memory",
"%xmm0", "%xmm1", "%xmm2", "%xmm3",
"%xmm4", "%xmm5", "%xmm6", "%xmm7"
);
}
void copy_backward(float *dst, const float *src, size_t count)
{
IF_ARCH_X86(size_t off);
ARCH_X86_ASM
(
__ASM_EMIT("cmp %[dst], %[src]")
__ASM_EMIT("je 10f")
__ASM_EMIT("lea (,%[count], 4), %[off]")
__ASM_EMIT("sub $0x20, %[count]")
__ASM_EMIT("jb 2f")
/* Block of 32 items */
__ASM_EMIT("1:")
__ASM_EMIT("sub $0x80, %[off]")
__ASM_EMIT("lddqu 0x00(%[src], %[off]), %%xmm0")
__ASM_EMIT("lddqu 0x10(%[src], %[off]), %%xmm1")
__ASM_EMIT("lddqu 0x20(%[src], %[off]), %%xmm2")
__ASM_EMIT("lddqu 0x30(%[src], %[off]), %%xmm3")
__ASM_EMIT("lddqu 0x40(%[src], %[off]), %%xmm4")
__ASM_EMIT("lddqu 0x50(%[src], %[off]), %%xmm5")
__ASM_EMIT("lddqu 0x60(%[src], %[off]), %%xmm6")
__ASM_EMIT("lddqu 0x70(%[src], %[off]), %%xmm7")
__ASM_EMIT("movdqu %%xmm0, 0x00(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm1, 0x10(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm2, 0x20(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm3, 0x30(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm4, 0x40(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm5, 0x50(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm6, 0x60(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm7, 0x70(%[dst], %[off])")
__ASM_EMIT("sub $0x20, %[count]")
__ASM_EMIT("jae 1b")
/* Block of 16 items */
__ASM_EMIT("2:")
__ASM_EMIT("add $0x10, %[count]")
__ASM_EMIT("jl 4f")
__ASM_EMIT("sub $0x40, %[off]")
__ASM_EMIT("lddqu 0x00(%[src], %[off]), %%xmm0")
__ASM_EMIT("lddqu 0x10(%[src], %[off]), %%xmm1")
__ASM_EMIT("lddqu 0x20(%[src], %[off]), %%xmm2")
__ASM_EMIT("lddqu 0x30(%[src], %[off]), %%xmm3")
__ASM_EMIT("movdqu %%xmm0, 0x00(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm1, 0x10(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm2, 0x20(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm3, 0x30(%[dst], %[off])")
__ASM_EMIT("sub $0x10, %[count]")
/* Block of 8 items */
__ASM_EMIT("4:")
__ASM_EMIT("add $0x08, %[count]")
__ASM_EMIT("jl 6f")
__ASM_EMIT("sub $0x20, %[off]")
__ASM_EMIT("lddqu 0x00(%[src], %[off]), %%xmm0")
__ASM_EMIT("lddqu 0x10(%[src], %[off]), %%xmm1")
__ASM_EMIT("movdqu %%xmm0, 0x00(%[dst], %[off])")
__ASM_EMIT("movdqu %%xmm1, 0x10(%[dst], %[off])")
__ASM_EMIT("sub $0x08, %[count]")
/* Block of 4 items */
__ASM_EMIT("6:")
__ASM_EMIT("add $0x04, %[count]")
__ASM_EMIT("jl 8f")
__ASM_EMIT("sub $0x10, %[off]")
__ASM_EMIT("lddqu 0x00(%[src], %[off]), %%xmm0")
__ASM_EMIT("movdqu %%xmm0, 0x00(%[dst], %[off])")
__ASM_EMIT("sub $0x04, %[count]")
/* 1x items */
__ASM_EMIT("8:")
__ASM_EMIT("add $0x03, %[count]")
__ASM_EMIT("jl 10f")
__ASM_EMIT("9:")
__ASM_EMIT("sub $0x04, %[off]")
__ASM_EMIT("movd 0x00(%[src], %[off]), %%xmm0")
__ASM_EMIT("movd %%xmm0, 0x00(%[dst], %[off])")
__ASM_EMIT("dec %[count]")
__ASM_EMIT("jge 9b")
__ASM_EMIT("10:")
: [src] "+r" (src), [dst] "+r"(dst),
[count] "+r" (count), [off] "=&r" (off)
:
: "cc", "memory",
"%xmm0", "%xmm1", "%xmm2", "%xmm3",
"%xmm4", "%xmm5", "%xmm6", "%xmm7"
);
#undef RCOPY_CORE
}
void move(float *dst, const float *src, size_t count)
{
if (dst < src)
sse3::copy(dst, src, count);
else if (dst > src)
sse3::copy_backward(dst, src, count);
}
} /* namespace sse3 */
} /* namespace lsp */
#endif /* PRIVATE_DSP_ARCH_X86_SSE3_COPY_H_ */
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