mirror of
https://github.com/intel/isa-l.git
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5a55e3096c
Change-Id: I1625a3d7e016805791cfd09e31909562f432fd71 Signed-off-by: Roy Oursler <roy.j.oursler@intel.com>
605 lines
14 KiB
NASM
605 lines
14 KiB
NASM
%include "reg_sizes.asm"
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%include "lz0a_const.asm"
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%include "data_struct2.asm"
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%include "stdmac.asm"
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%ifdef HAVE_AS_KNOWS_AVX512
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%define ARCH 06
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%define USE_HSWNI
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; tree entry is 4 bytes:
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; lit/len tree (513 entries)
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; | 3 | 2 | 1 | 0 |
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; | len | code |
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;
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; dist tree
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; | 3 | 2 | 1 | 0 |
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; |eblen:codlen| code |
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; token format:
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; DIST_OFFSET:0 : lit/len
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; 31:(DIST_OFFSET + 5) : dist Extra Bits
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; (DIST_OFFSET + 5):DIST_OFFSET : dist code
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; lit/len: 0-256 (literal)
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; 257-512 (dist + 254)
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; returns final token pointer
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; equal to token_end if successful
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; uint32_t* encode_df(uint32_t *token_start, uint32_t *token_end,
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; BitBuf *out_buf, uint32_t *trees);
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%ifidn __OUTPUT_FORMAT__, win64
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%define arg1 rcx
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%define arg2 rdx
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%define arg3 r8
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%define arg4 r9
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%define sym rsi
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%define dsym rdi
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%define hufftables r9
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%define ptr r11
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%else
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; Linux
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%define arg1 rdi
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%define arg2 rsi
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%define arg3 rdx
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%define arg4 rcx
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%define sym r9
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%define dsym r8
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%define hufftables r11
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%define ptr rdi
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%endif
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%define in_buf_end arg2
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%define bitbuf arg3
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%define out_buf bitbuf
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; bit_count is rcx
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%define bits rax
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%define data r12
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%define tmp rbx
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%define len dsym
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%define tmp2 r10
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%define end_ptr rbp
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%define LIT_MASK ((0x1 << LIT_LEN_BIT_COUNT) - 1)
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%define DIST_MASK ((0x1 << DIST_LIT_BIT_COUNT) - 1)
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%define codes1 zmm1
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%define code_lens1 zmm2
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%define codes2 zmm3
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%define code_lens2 zmm4
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%define codes3 zmm5
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%define ztmp zmm5
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%define code_lens3 zmm6
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%define codes4 zmm7
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%define syms zmm7
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%define code_lens4 zmm8
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%define dsyms zmm8
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%define zbits_count_q zmm8
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%define codes_lookup1 zmm9
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%define codes_lookup2 zmm10
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%define datas zmm11
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%define zbits zmm12
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%define zbits_count zmm13
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%define zoffset_mask zmm14
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%define zq_64 zmm15
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%define zlit_mask zmm16
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%define zdist_mask zmm17
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%define zlit_icr_mask zmm18
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%define zeb_icr_mask zmm19
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%define zmax_write zmm20
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%define zrot_perm zmm21
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%define zq_8 zmm22
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%define zmin_write zmm23
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%define VECTOR_SIZE 0x40
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%define VECTOR_LOOP_PROCESSED (2 * VECTOR_SIZE)
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%define VECTOR_SLOP 0x40 - 8
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gpr_save_mem_offset equ 0
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gpr_save_mem_size equ 8 * 6
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xmm_save_mem_offset equ gpr_save_mem_offset + gpr_save_mem_size
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xmm_save_mem_size equ 10 * 16
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bitbuf_mem_offset equ xmm_save_mem_offset + xmm_save_mem_size
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bitbuf_mem_size equ 8
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stack_size equ gpr_save_mem_size + xmm_save_mem_size + bitbuf_mem_size
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%macro FUNC_SAVE 0
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sub rsp, stack_size
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mov [rsp + gpr_save_mem_offset + 0*8], rbx
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mov [rsp + gpr_save_mem_offset + 1*8], rbp
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mov [rsp + gpr_save_mem_offset + 2*8], r12
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%ifidn __OUTPUT_FORMAT__, win64
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mov [rsp + gpr_save_mem_offset + 3*8], rsi
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mov [rsp + gpr_save_mem_offset + 4*8], rdi
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MOVDQU [rsp + xmm_save_mem_offset + 0*8], xmm6
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MOVDQU [rsp + xmm_save_mem_offset + 1*8], xmm7
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MOVDQU [rsp + xmm_save_mem_offset + 2*8], xmm8
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MOVDQU [rsp + xmm_save_mem_offset + 3*8], xmm9
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MOVDQU [rsp + xmm_save_mem_offset + 4*8], xmm10
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MOVDQU [rsp + xmm_save_mem_offset + 5*8], xmm11
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MOVDQU [rsp + xmm_save_mem_offset + 6*8], xmm12
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MOVDQU [rsp + xmm_save_mem_offset + 7*8], xmm13
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MOVDQU [rsp + xmm_save_mem_offset + 8*8], xmm14
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MOVDQU [rsp + xmm_save_mem_offset + 9*8], xmm15
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%endif
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%endm
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%macro FUNC_RESTORE 0
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mov rbx, [rsp + gpr_save_mem_offset + 0*8]
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mov rbp, [rsp + gpr_save_mem_offset + 1*8]
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mov r12, [rsp + gpr_save_mem_offset + 2*8]
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%ifidn __OUTPUT_FORMAT__, win64
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mov rsi, [rsp + gpr_save_mem_offset + 3*8]
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mov rdi, [rsp + gpr_save_mem_offset + 4*8]
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MOVDQU xmm6, [rsp + xmm_save_mem_offset + 0*8]
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MOVDQU xmm7, [rsp + xmm_save_mem_offset + 1*8]
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MOVDQU xmm8, [rsp + xmm_save_mem_offset + 2*8]
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MOVDQU xmm9, [rsp + xmm_save_mem_offset + 3*8]
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MOVDQU xmm10, [rsp + xmm_save_mem_offset + 4*8]
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MOVDQU xmm11, [rsp + xmm_save_mem_offset + 5*8]
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MOVDQU xmm12, [rsp + xmm_save_mem_offset + 6*8]
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MOVDQU xmm13, [rsp + xmm_save_mem_offset + 7*8]
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MOVDQU xmm14, [rsp + xmm_save_mem_offset + 8*8]
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MOVDQU xmm15, [rsp + xmm_save_mem_offset + 9*8]
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%endif
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add rsp, stack_size
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%endmacro
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global encode_deflate_icf_ %+ ARCH
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encode_deflate_icf_ %+ ARCH:
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FUNC_SAVE
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%ifnidn ptr, arg1
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mov ptr, arg1
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%endif
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%ifnidn hufftables, arg4
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mov hufftables, arg4
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%endif
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mov [rsp + bitbuf_mem_offset], bitbuf
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mov bits, [bitbuf + _m_bits]
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mov ecx, [bitbuf + _m_bit_count]
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mov end_ptr, [bitbuf + _m_out_end]
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mov out_buf, [bitbuf + _m_out_buf] ; clobbers bitbuf
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sub end_ptr, VECTOR_SLOP
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sub in_buf_end, VECTOR_LOOP_PROCESSED
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cmp ptr, in_buf_end
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jge .finish
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kxorq k0, k0, k0
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kmovq k1, [k_mask_1]
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kmovq k2, [k_mask_2]
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kmovq k3, [k_mask_3]
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kmovq k4, [k_mask_4]
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kmovq k5, [k_mask_5]
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vmovdqa64 zoffset_mask, [offset_mask]
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vmovdqa64 zlit_mask, [lit_mask]
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vmovdqa64 zdist_mask, [dist_mask]
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vmovdqa64 zlit_icr_mask, [lit_icr_mask]
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vmovdqa64 zeb_icr_mask, [eb_icr_mask]
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vmovdqa64 zmax_write, [max_write_d]
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vmovdqa64 zq_64, [q_64]
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vmovdqa64 zrot_perm, [rot_perm]
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vmovdqa64 zq_8, [q_8]
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vmovdqa64 zmin_write, [min_write_q]
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knotq k6, k0
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vmovdqu64 datas, [ptr]
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vpandd syms, datas, [lit_mask]
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vpgatherdd codes_lookup1 {k6}, [hufftables + _lit_len_table + 4 * syms]
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knotq k7, k0
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vpsrld dsyms, datas, DIST_OFFSET
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vpandd dsyms, dsyms, [dist_mask]
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vpgatherdd codes_lookup2 {k7}, [hufftables + _dist_table + 4 * dsyms]
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vmovq zbits %+ x, bits
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vmovq zbits_count %+ x, rcx
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.main_loop:
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;; Sets codes1 to contain lit/len codes andcode_lens1 the corresponding lengths
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vpsrld code_lens1, codes_lookup1, 24
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vpandd codes1, codes_lookup1, zlit_icr_mask
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;; Sets codes2 to contain dist codes, code_lens2 the corresponding lengths,
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;; and code_lens3 the extra bit counts
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vmovdqu16 codes2 {k1}{z}, codes_lookup2 ;Bits 8 and above of zbits are 0
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vpsrld code_lens2, codes_lookup2, 24
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vpsrld code_lens3, codes_lookup2, 16
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vpandd code_lens3, code_lens3, zeb_icr_mask
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;; Set codes3 to contain the extra bits
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vpsrld codes3, datas, EXTRA_BITS_OFFSET
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cmp out_buf, end_ptr
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ja .main_loop_exit
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;; Start code lookups for next iteration
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knotq k6, k0
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add ptr, VECTOR_SIZE
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vmovdqu64 datas, [ptr]
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vpandd syms, datas, zlit_mask
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vpgatherdd codes_lookup1 {k6}, [hufftables + _lit_len_table + 4 * syms]
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knotq k7, k0
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vpsrld dsyms, datas, DIST_OFFSET
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vpandd dsyms, dsyms, zdist_mask
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vpgatherdd codes_lookup2 {k7}, [hufftables + _dist_table + 4 * dsyms]
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;; Merge dist code with extra bits
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vpsllvd codes3, codes3, code_lens2
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vpxord codes2, codes2, codes3
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vpaddd code_lens2, code_lens2, code_lens3
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;; Check for long codes
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vpaddd code_lens3, code_lens1, code_lens2
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vpcmpgtd k6, code_lens3, zmax_write
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ktestd k6, k6
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jnz .long_codes
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;; Merge dist and len codes
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vpsllvd codes2, codes2, code_lens1
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vpxord codes1, codes1, codes2
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vmovdqa32 codes3 {k1}{z}, codes1
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vpsrlq codes1, codes1, 32
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vpsrlq code_lens1, code_lens3, 32
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vmovdqa32 code_lens3 {k1}{z}, code_lens3
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;; Merge bitbuf bits
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vpsllvq codes3, codes3, zbits_count
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vpxord codes3, codes3, zbits
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vpaddq code_lens3, code_lens3, zbits_count
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;; Merge two symbols into qwords
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vpsllvq codes1, codes1, code_lens3
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vpxord codes1, codes1, codes3
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vpaddq code_lens1, code_lens1, code_lens3
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;; Determine total bits at end of each qword
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kshiftlq k7, k3, 2
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vpermq zbits_count {k5}{z}, zrot_perm, code_lens1
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vpaddq code_lens2, zbits_count, code_lens1
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vshufi64x2 zbits_count {k3}{z}, code_lens2, code_lens2, 0x90
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vpaddq code_lens2, code_lens2, zbits_count
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vshufi64x2 zbits_count {k7}{z}, code_lens2, code_lens2, 0x40
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vpaddq code_lens2, code_lens2, zbits_count
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;; Bit align quadwords
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vpandd zbits_count, code_lens2, zoffset_mask
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vpermq zbits_count_q {k5}{z}, zrot_perm, zbits_count
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vpsllvq codes1, codes1, zbits_count_q
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;; Get last byte in each qword
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vpsrlq code_lens2, code_lens2, 3
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vpaddq code_lens1, code_lens1, zbits_count_q
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vpsrlq code_lens1, code_lens1, 3
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vpaddq code_lens1, code_lens1, zq_8
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vpshufb codes3 {k4}{z}, codes1, code_lens1
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;; Check whether any of the last bytes overlap
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vpcmpq k6 {k5}, code_lens1, zmin_write, 0
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ktestd k6, k6
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jnz .small_codes
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.small_codes_next:
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;; Save off zbits and zbits_count for next loop
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knotq k7, k5
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vpermq zbits {k7}{z}, zrot_perm, codes3
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vpermq zbits_count {k7}{z}, zrot_perm, zbits_count
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;; Merge last byte in each qword with the next qword
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vpermq codes3 {k5}{z}, zrot_perm, codes3
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vpxord codes1, codes1, codes3
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;; Determine total bytes written
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vextracti64x2 code_lens1 %+ x, code_lens2, 3
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vpextrq tmp2, code_lens1 %+ x, 1
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;; Write out qwords
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knotq k6, k0
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vpermq code_lens2 {k5}{z}, zrot_perm, code_lens2
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vpscatterqq [out_buf + code_lens2] {k6}, codes1
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add out_buf, tmp2
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cmp ptr, in_buf_end
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jbe .main_loop
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.main_loop_exit:
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vmovq rcx, zbits_count %+ x
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vmovq bits, zbits %+ x
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jmp .finish
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.small_codes:
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;; Merge overlapping last bytes
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vpermq codes4 {k6}{z}, zrot_perm, codes3
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vporq codes3, codes3, codes4
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kshiftlq k7, k6, 1
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ktestd k6, k7
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jz .small_codes_next
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kandq k6, k6, k7
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jmp .small_codes
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.long_codes:
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add end_ptr, VECTOR_SLOP
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sub ptr, VECTOR_SIZE
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vmovdqa32 codes3 {k1}{z}, codes1
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vmovdqa32 code_lens3 {k1}{z}, code_lens1
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vmovdqa32 codes4 {k1}{z}, codes2
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vpsllvq codes4, codes4, code_lens3
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vpxord codes3, codes3, codes4
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vpaddd code_lens3, code_lens1, code_lens2
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vpsrlq codes1, codes1, 32
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vpsrlq code_lens1, code_lens1, 32
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vpsrlq codes2, codes2, 32
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vpsllvq codes2, codes2, code_lens1
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vpxord codes1, codes1, codes2
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vpsrlq code_lens1, code_lens3, 32
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vmovdqa32 code_lens3 {k1}{z}, code_lens3
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;; Merge bitbuf bits
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vpsllvq codes3, codes3, zbits_count
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vpxord codes3, codes3, zbits
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vpaddq code_lens3, code_lens3, zbits_count
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vpaddq code_lens1, code_lens1, code_lens3
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xor bits, bits
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xor rcx, rcx
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vpsubq code_lens1, code_lens1, code_lens3
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vmovdqu64 codes2, codes1
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vmovdqu64 code_lens2, code_lens1
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vmovdqu64 codes4, codes3
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vmovdqu64 code_lens4, code_lens3
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%assign i 0
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%rep 4
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%assign i (i + 1)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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cmp out_buf, end_ptr
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ja .overflow
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;; insert LL code
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vmovq sym, codes3 %+ x
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vmovq tmp2, code_lens3 %+ x
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SHLX sym, sym, rcx
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or bits, sym
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add rcx, tmp2
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; empty bits
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mov [out_buf], bits
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mov tmp, rcx
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shr tmp, 3 ; byte count
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add out_buf, tmp
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mov tmp, rcx
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and rcx, ~7
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SHRX bits, bits, rcx
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mov rcx, tmp
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and rcx, 7
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add ptr, 4
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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cmp out_buf, end_ptr
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ja .overflow
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;; insert LL code
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vmovq sym, codes1 %+ x
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vmovq tmp2, code_lens1 %+ x
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SHLX sym, sym, rcx
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or bits, sym
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add rcx, tmp2
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; empty bits
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mov [out_buf], bits
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mov tmp, rcx
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shr tmp, 3 ; byte count
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add out_buf, tmp
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mov tmp, rcx
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and rcx, ~7
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SHRX bits, bits, rcx
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mov rcx, tmp
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and rcx, 7
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add ptr, 4
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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cmp out_buf, end_ptr
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ja .overflow
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;; insert LL code
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vpextrq sym, codes3 %+ x, 1
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vpextrq tmp2, code_lens3 %+ x, 1
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SHLX sym, sym, rcx
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or bits, sym
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add rcx, tmp2
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; empty bits
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mov [out_buf], bits
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mov tmp, rcx
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shr tmp, 3 ; byte count
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add out_buf, tmp
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mov tmp, rcx
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and rcx, ~7
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SHRX bits, bits, rcx
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mov rcx, tmp
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and rcx, 7
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add ptr, 4
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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cmp out_buf, end_ptr
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ja .overflow
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;; insert LL code
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vpextrq sym, codes1 %+ x, 1
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vpextrq tmp2, code_lens1 %+ x, 1
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SHLX sym, sym, rcx
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or bits, sym
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add rcx, tmp2
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; empty bits
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mov [out_buf], bits
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mov tmp, rcx
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shr tmp, 3 ; byte count
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add out_buf, tmp
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mov tmp, rcx
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and rcx, ~7
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SHRX bits, bits, rcx
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mov rcx, tmp
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and rcx, 7
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add ptr, 4
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vextracti32x4 codes3 %+ x, codes4, i
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vextracti32x4 code_lens3 %+ x, code_lens4, i
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vextracti32x4 codes1 %+ x, codes2, i
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vextracti32x4 code_lens1 %+ x, code_lens2, i
|
|
%endrep
|
|
sub end_ptr, VECTOR_SLOP
|
|
|
|
vmovq zbits %+ x, bits
|
|
vmovq zbits_count %+ x, rcx
|
|
cmp ptr, in_buf_end
|
|
jbe .main_loop
|
|
|
|
.finish:
|
|
add in_buf_end, VECTOR_LOOP_PROCESSED
|
|
add end_ptr, VECTOR_SLOP
|
|
|
|
cmp ptr, in_buf_end
|
|
jge .overflow
|
|
|
|
.finish_loop:
|
|
mov DWORD(data), [ptr]
|
|
|
|
cmp out_buf, end_ptr
|
|
ja .overflow
|
|
|
|
mov sym, data
|
|
and sym, LIT_MASK ; sym has ll_code
|
|
mov DWORD(sym), [hufftables + _lit_len_table + sym * 4]
|
|
|
|
; look up dist sym
|
|
mov dsym, data
|
|
shr dsym, DIST_OFFSET
|
|
and dsym, DIST_MASK
|
|
mov DWORD(dsym), [hufftables + _dist_table + dsym * 4]
|
|
|
|
; insert LL code
|
|
; sym: 31:24 length; 23:0 code
|
|
mov tmp2, sym
|
|
and sym, 0xFFFFFF
|
|
SHLX sym, sym, rcx
|
|
shr tmp2, 24
|
|
or bits, sym
|
|
add rcx, tmp2
|
|
|
|
; insert dist code
|
|
movzx tmp, WORD(dsym)
|
|
SHLX tmp, tmp, rcx
|
|
or bits, tmp
|
|
mov tmp, dsym
|
|
shr tmp, 24
|
|
add rcx, tmp
|
|
|
|
; insert dist extra bits
|
|
shr data, EXTRA_BITS_OFFSET
|
|
add ptr, 4
|
|
SHLX data, data, rcx
|
|
or bits, data
|
|
shr dsym, 16
|
|
and dsym, 0xFF
|
|
add rcx, dsym
|
|
|
|
; empty bits
|
|
mov [out_buf], bits
|
|
mov tmp, rcx
|
|
shr tmp, 3 ; byte count
|
|
add out_buf, tmp
|
|
mov tmp, rcx
|
|
and rcx, ~7
|
|
SHRX bits, bits, rcx
|
|
mov rcx, tmp
|
|
and rcx, 7
|
|
|
|
cmp ptr, in_buf_end
|
|
jb .finish_loop
|
|
|
|
.overflow:
|
|
mov tmp, [rsp + bitbuf_mem_offset]
|
|
mov [tmp + _m_bits], bits
|
|
mov [tmp + _m_bit_count], ecx
|
|
mov [tmp + _m_out_buf], out_buf
|
|
|
|
mov rax, ptr
|
|
|
|
FUNC_RESTORE
|
|
|
|
ret
|
|
|
|
section .data
|
|
align 64
|
|
max_write_d:
|
|
dd 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c
|
|
dd 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c
|
|
min_write_q:
|
|
dq 0x00, 0x08, 0x00, 0x08, 0x00, 0x08, 0x00, 0x08
|
|
offset_mask:
|
|
dq 0x0000000000000007, 0x0000000000000007
|
|
dq 0x0000000000000007, 0x0000000000000007
|
|
dq 0x0000000000000007, 0x0000000000000007
|
|
dq 0x0000000000000007, 0x0000000000000007
|
|
q_64:
|
|
dq 0x0000000000000040, 0x0000000000000000
|
|
dq 0x0000000000000040, 0x0000000000000000
|
|
dq 0x0000000000000040, 0x0000000000000000
|
|
dq 0x0000000000000040, 0x0000000000000000
|
|
q_8 :
|
|
dq 0x0000000000000000, 0x0000000000000008
|
|
dq 0x0000000000000000, 0x0000000000000008
|
|
dq 0x0000000000000000, 0x0000000000000008
|
|
dq 0x0000000000000000, 0x0000000000000008
|
|
lit_mask:
|
|
dd LIT_MASK, LIT_MASK, LIT_MASK, LIT_MASK
|
|
dd LIT_MASK, LIT_MASK, LIT_MASK, LIT_MASK
|
|
dd LIT_MASK, LIT_MASK, LIT_MASK, LIT_MASK
|
|
dd LIT_MASK, LIT_MASK, LIT_MASK, LIT_MASK
|
|
dist_mask:
|
|
dd DIST_MASK, DIST_MASK, DIST_MASK, DIST_MASK
|
|
dd DIST_MASK, DIST_MASK, DIST_MASK, DIST_MASK
|
|
dd DIST_MASK, DIST_MASK, DIST_MASK, DIST_MASK
|
|
dd DIST_MASK, DIST_MASK, DIST_MASK, DIST_MASK
|
|
lit_icr_mask:
|
|
dd 0x00ffffff, 0x00ffffff, 0x00ffffff, 0x00ffffff
|
|
dd 0x00ffffff, 0x00ffffff, 0x00ffffff, 0x00ffffff
|
|
dd 0x00ffffff, 0x00ffffff, 0x00ffffff, 0x00ffffff
|
|
dd 0x00ffffff, 0x00ffffff, 0x00ffffff, 0x00ffffff
|
|
eb_icr_mask:
|
|
dd 0x000000ff, 0x000000ff, 0x000000ff, 0x000000ff
|
|
dd 0x000000ff, 0x000000ff, 0x000000ff, 0x000000ff
|
|
dd 0x000000ff, 0x000000ff, 0x000000ff, 0x000000ff
|
|
dd 0x000000ff, 0x000000ff, 0x000000ff, 0x000000ff
|
|
rot_perm:
|
|
dq 0x00000007, 0x00000000, 0x00000001, 0x00000002
|
|
dq 0x00000003, 0x00000004, 0x00000005, 0x00000006
|
|
|
|
k_mask_1: dq 0x55555555
|
|
k_mask_2: dq 0x11111111
|
|
k_mask_3: dq 0xfffffffc
|
|
k_mask_4: dw 0x0101, 0x0101, 0x0101, 0x0101
|
|
k_mask_5: dq 0xfffffffe
|
|
|
|
%endif
|