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igzip: update update_hash to match stateless and stateful compression.

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Signed-off-by: Roy Oursler <roy.j.oursler@intel.com>
Reviewed-by: Greg Tucker <greg.b.tucker@intel.com>
This commit is contained in:
Roy Oursler 2016-06-21 13:41:38 -07:00 committed by Greg Tucker
parent f97de75fc6
commit af9c0c0f46
1 changed files with 11 additions and 3 deletions
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14
igzip/igzip_update_histogram.asm
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@ -255,9 +255,6 @@ loop2:
;; Store first literal
inc qword [histogram + _lit_len_offset + HIST_ELEM_SIZE * tmp1]
;; Specutively load the code for the second literal
and curr_data, 0xff
;; Check for len/dist match for second literal
test len2 %+ d, 0xFFFFFFFF
jnz lit_lit_huffman
@ -267,10 +264,14 @@ len_dist_lit_huffman_pre:
shr len2, 3
len_dist_lit_huffman:
mov curr_data, [file_start + f_i + 3]
compute_hash hash3, curr_data
;; Store updated hashes
mov [histogram + _hash_offset + 2 * hash], tmp3 %+ w
add tmp3,1
mov [histogram + _hash_offset + 2 * hash2], tmp3 %+ w
add tmp3, 1
add f_i, len2
@ -278,6 +279,9 @@ len_dist_lit_huffman:
mov tmp1, curr_data
compute_hash hash, curr_data
and hash3, HASH_MASK
mov [histogram + _hash_offset + 2 * hash3], tmp3 %+ w
dist_to_dist_code2 dist_code2, dist2
len_to_len_code len_code, len2, rfc_lookup
@ -302,6 +306,8 @@ len_dist_huffman_pre:
len_dist_huffman:
mov [histogram + _hash_offset + 2 * hash], tmp3 %+ w
add tmp3,1
mov [histogram + _hash_offset + 2 * hash2], tmp3 %+ w
dec f_i
add f_i, len
@ -328,6 +334,7 @@ len_dist_huffman:
jmp end_loop_2
lit_lit_huffman:
and curr_data, 0xff
add f_i, 1
inc qword [histogram + _lit_len_offset + HIST_ELEM_SIZE * curr_data]
@ -429,6 +436,7 @@ end:
compare_loop:
and hash %+ d, HASH_MASK
and hash2 %+ d, HASH_MASK
lea tmp2, [tmp1 + dist - 1]
%if (COMPARE_TYPE == 1)
compare250 tmp1, tmp2, len, tmp3