Table of Contents
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Mnemonic
Operand
Index
Time
Oper. Code
Address
Word
Microsec.
FSU
FMP
FDV
NORMALIZED FLOATING POINT SUBTRACT. The
floating point number in Y and Y+l is subtracted
algebraically from the floating point number in re-
gister AX. The result is placed in AX in normalized
form.
UNNORMALIZED FLOATING POINT SUBTRACT.
Same a s normalized floating point subtract except
the result is placed in registers AX and QX and may
o r may not be in normalized form.
DOUBLE WORD FIXED POINT SUBTRACT.
The
contents of Y and Y+l a r e algebraically subtracted
from the contents of register AX and the result i s
placed in AX a s a 38 bit fixed point number.
NORMALIZED FLOATING POINT MULTIPLY. The
floating point number in Y and Y+l i s algebraically
multiplied by the floating point number in register
QX.
The 60-bit product of the two mantissas i s
normalized.
The most significant half of the nor-
malized product i s stored with i t s exponent in AX;
the least significant half i s stored in QX (the exponent
30 l e s s than the floating point exponent in AX).
UNNORMALIZED FLOATING POINT
MULTIPLY.
Same a s normalized floating point multiply except
the result i s placed in registers AX and QX and may
o r may not be in normalized form.
DOUBLE WORD FIXED POINT MULTIPLY.
The
contents of Y and Y+l a r e algebraically multiplied by
the contents of register QX, giving a 76-bit product
and 4 identical sign bits.
The most significant half
of the product i s stored with 2 sign bits in AX, and
the least significant half is stored with 2 sign bits in
QX.
NORMALIZED FLOATING POINT DIVIDE.
The
floating point number in registers AX and QX is
algebraically divided by the floating point number in
Y and Y+1. The normalized quotient is stored in AX,
and the remainder, which may o r may not be nor-
malized, is stored in QX.
UNNORMALIZED FLOATING POINT DIVIDE. Same
a s normalized floating point divide except the quotient
that i s stored in AX may o r may not be in normalized
form.
DOUBLE WORD FIXED POINT DIVIDE.
The con-
tents of registers AX and QX a r e divided by the
contents of Y and Y+1. The quotient i s stored in AX
and the remainder in QX.
!
IV- 19
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