kien truc may tinh nguyen hoang son computer arithmetic(7) cuuduongthancong com

NGUYÊN fixed point... cuu duong than cong... chia chia bit ShiftLeft AQ count=count-1... ng floating point... cuu duong than cong... cuu duong than cong.

NGUYÊN (fixed point)

2 n

0 i

i

i 1

n

1 n

a 2 a

2 A

cuu duong than cong com

a nhau

2 n

0 i

i

i 1

n

1 n

a 2 a

2 A

2 n

0 i

i

i 1

n

1 n

a 2 1

a 2

B

cuu duong than cong com

1001 = -7

+0101 = 5

1110 = -2

1100 = -4 +0100 = 4

1 1011 = -5

cuu duong than cong com

cuu duong than cong com

ch

Start

nhân nhân Count n

Q0=1?

i C,A,Q Count = Count -1

C,A< A+M

cuu duong than cong com

nh nhân

t Booth

00001101 10010011 1011

1011 1011 1011

001110 001111

chia chia

cuu duong than cong com

u

chia chia bit

ShiftLeft (AQ) count=count-1

ng (floating point)

i 32-bit word

n IEEE 754

[1]http://www.eecs.berkeley.edu/~wkahan/ieee754status/IEEE754.PDF [2] http://babbage.cs.qc.edu/courses/cs341/IEEE-754references.html

n IEE 754

cuu duong than cong com

cuu duong than cong com

ng (tt)

cuu duong than cong com

 - n < +∞

t Booth.