MSC8101PG Motorola / Freescale Semiconductor, MSC8101PG Datasheet - Page 65

• Manufacturer Part Number: MSC8101PG
• Description: MSC8101PG 16-Bit Digital Signal Processor Quick Reference
• Manufacturer: Motorola / Freescale Semiconductor

5–4
6
3
2
1
0
S
S[1–0]
RM
SM
T
C
Scaling
Scaling Mode
Rounding Mode
Arithmetic Saturation Mode
True
Carry
Table 6-3. Core Registers (Continued)
0 = Convergent rounding selected
1 = Two’s complement rounding selected
0 = Mode not selected
0 = Condition tested by compare or test instruction is false
1 = Condition tested by compare or test instruction is true
0 = No carry or borrow generated
1 = Carry generated from last addition, or borrow generated from last
subtraction
S1
S1
0
0
1
1
0
0
1
1
S0
S0
0
1
0
1
0
1
0
1
(1-bit Arithmetic right shift )
(1-bit Arithmetic left shift )
Scaling Mode
Scale down
No scaling
Reserved
Scale up
Scaling Mode
Scale down
No scaling
Reserved
Scale up
1 = Mode selected
S = (D30 XOR D29)
S = (D31 XOR D30)
S = (D29 XOR D28)
OR S (previous)
OR S (previous)
OR S (previous)
S = Undefined
S Equation
Rounding
Bit
15
16
14
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