diff options
Diffstat (limited to '')
| -rw-r--r-- | src/spdk/isa-l/igzip/bitbuf2.asm | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/spdk/isa-l/igzip/bitbuf2.asm b/src/spdk/isa-l/igzip/bitbuf2.asm new file mode 100644 index 000000000..71493825e --- /dev/null +++ b/src/spdk/isa-l/igzip/bitbuf2.asm @@ -0,0 +1,64 @@ +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +; Copyright(c) 2011-2016 Intel Corporation All rights reserved. +; +; 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 Intel Corporation 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 COPYRIGHT +; OWNER 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 "options.asm" +%include "stdmac.asm" + +; Assumes m_out_buf is a register +; Clobbers RCX +; code is clobbered +; write_bits_always m_bits, m_bit_count, code, count, m_out_buf +%macro write_bits 5 +%define %%m_bits %1 +%define %%m_bit_count %2 +%define %%code %3 +%define %%count %4 +%define %%m_out_buf %5 + + SHLX %%code, %%code, %%m_bit_count + + or %%m_bits, %%code + add %%m_bit_count, %%count + + mov [%%m_out_buf], %%m_bits + mov rcx, %%m_bit_count + shr rcx, 3 ; rcx = bytes + add %%m_out_buf, rcx + shl rcx, 3 ; rcx = bits + and %%m_bit_count, 0x7 + + SHRX %%m_bits, %%m_bits, rcx +%endm + +%macro write_dword 2 +%define %%data %1d +%define %%addr %2 + mov [%%addr], %%data + add %%addr, 4 +%endm |