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Chip 1996 April
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VHUF_.ASM
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Wrap
Assembly Source File
|
1991-02-11
|
2KB
|
120 lines
;***********************************************
; vhuf_.asm -- works for dynamic & static
; Huffman methods
;***********************************************
page 0, 128
NC = (200h - 2)
NP = 14
NT = 19
NPT = 080h
THRESHOLD equ 3
N1 equ 256 + 60 - THRESHOLD + 1
N2 equ N1 * 2
NN1 equ 2000h / 64
NN2 equ NN1 * 2
DATA segment word public 'DATA'
DATA ends
BSS segment word public 'DATA'
heap dw NC + 1 dup (?)
public heap
avail_mt dw 1 dup (?)
nchar dw 1 dup (?)
bitlen dw 1 dup (?)
freq dw 1 dup (?)
code dw 1 dup (?)
n2 dw 1 dup (?)
heapsize dw 1 dup (?)
sort dw 1 dup (?)
depth dw 1 dup (?)
public avail_mt
public nchar
public bitlen
public freq
public code
public n2
public heapsize
public sort
public depth
public text_
text_ db (2000h * 2 + 100h) dup(?)
parent_ label word
left_ dw 2 * NC - 1 dup (?)
child_ label word
right_ dw 2 * NC - 1 dup (?)
c_table_ dw 4096 dup (?)
c_code_ dw NC dup (?)
pt_table_ dw 256 dup (?)
pt_code_ dw NPT dup (?)
c_len_ db NC dup (?)
pt_len_ db NPT dup (?)
dummy db 8000h - (pt_len_ + NPT - text_) dup (?)
public freq_
public c_freq_, p_freq_, t_freq_
public parent_
public left_
public child_
public right_
public c_table_
public c_code_
public pt_table_
public pt_code_
public c_len_
public pt_len_
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
org c_table_
freq_ label word
c_freq_ dw 2 * NC - 1 dup (?)
p_freq_ dw 2 * NP - 1 dup (?)
t_freq_ dw 2 * NT - 1 dup (?)
block_ label word
dw N2 dup (?)
dw NN2 dup (?)
edge_ label word
dw N2 dup(?)
dw 256 dup (?)
stock_ label word
dw N2 dup (?)
dw NN2 dup (?)
public block_
public edge_
public stock_
org heap
len_cnt dw 17 dup (?)
start dw 17 dup (?)
weight dw 17 dup (?)
public len_cnt
public start
public weight
org freq
tablebits dw 1 dup (?)
table dw 1 dup (?)
public tablebits
public table
BSS ends
DGROUP group DATA, BSS
end