HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 166
HD6417641
Manufacturer Part Number
HD6417641
Description
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417641.pdf
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Section 3 DSP Operation
Table 3.10 Variation of Rounding Operation
Overflow Protection: The S bit in SR is effective for any rounding operations in the DSP unit.
See section 3.1.8, Overflow Protection, for details.
Rev. 4.00 Sep. 14, 2005 Page 116 of 982
REJ09B0023-0400
Mnemonic
PRND
39
Guard
Function
Rounding
31
Figure 3.13 Definition of Rounding Operation
Figure 3.12 Rounding Operation Flow
Source 1 or 2
Destination
39
Guard
H'00 0002
H'00 0001
31
Rounded result
Source 1
Sx
Addition
0
ALU
0
H'00008000
0
Source 2
Sy
Analog value
GT
Z
True value
DSR
N
Cleared
V
DC
Destination
Dz
Dz
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