Motorola DSP96002 - Manual (Page 732)

MOTOROLA DSP96002 USER’S MANUAL C-9
Figure C-8. The Data ALU Block Diagram
Automatic Format Conversion Unit
d0.h d0.m d0.l d0
d1
d2
d3
d4
d5
d6
d7
d8
d9
Register File
Control and
Arbitration Unit
Add/Subtract Unit
Multiply Unit
Special Function Unit
Operands Results
X-Data Bus
Y-Data Bus
Infinite-precision Rounded result (to
result p=4 bits for example)
1.000 11100000.... 1.001 (round up)
1.000 01100000.... 1.000 (round down)
1.000 10000000....(absolute tie) 1.000 (round down)
1.001 10000000....(absolute tie) 1.010 (round up)
Table C-2. Example of the Round to Nearest (Even) Mode.