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Monster Media 1996 #15
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Monster Media Number 15 (Monster Media)(July 1996).ISO
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prog_c
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cuj0696.zip
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DWYER.ZIP
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QFLOAT
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QHEAD.ASM
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Assembly Source File
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1996-02-24
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812b
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37 lines
_TEXT SEGMENT BYTE PUBLIC 'CODE'
_TEXT ENDS
CONST SEGMENT WORD PUBLIC 'CONST'
CONST ENDS
_BSS SEGMENT WORD PUBLIC 'BSS'
_BSS ENDS
_DATA SEGMENT WORD PUBLIC 'DATA'
_DATA ENDS
DGROUP GROUP CONST, _BSS, _DATA
ASSUME CS: _TEXT, DS: DGROUP, SS: DGROUP, ES: DGROUP
; number of 16 bit words in the entire number format
NQ = 24 ; 24, 12
; number of iterations for a divide: 3 -> 77 decimal accuracy
NQDIV = 4 ; 4, 3
; number of 16 bit words in mantissa area:
OMG = NQ-2
; byte offset to last word of mantissa area = 2*OMG+2:
OFFS = OMG+OMG+2
zmul MACRO a,b
ao = 6 + 2*a
bo = 6 + 2*b
co = 8 + 2*a + 2*b
do = 6 + 2*a + 2*b
eo = 4 + 2*a + 2*b
mov ax, word ptr [di]+ao
mul word ptr [si]+bo
add word ptr [bx]+co,ax
adc word ptr [bx]+do,dx
adc word ptr [bx]+eo,cx
ENDM