Motorola 24-Bit Digital Signal Processor, DSP56000 manual Mode Register MR Symbols

NOTATION

Table A-1 Instruction Description Notation (Continued)

Addressing Mode Operators

<<

<

>

#

#>

#<

I/O Short Addressing Mode Force Operator

Short Addressing Mode Force Operator

Long Addressing Mode Force Operator

Immediate Addressing Mode Operator

Immediate Long Addressing Mode Force Operator

Immediate Short Addressing Mode Force Operator

	Mode Register (MR) Symbols
DM	Double Precision Multiply Bit Indicating if the Chip is in Double Precision Multiply Mode
LF	Loop Flag Bit Indicating When a DO Loop is in Progress
T	Trace Mode Bit Indicating if the Tracing Function has been Enabled
S1, S0	Scaling Mode Bits Indicating the Current Scaling Mode
I1, I0	Interrupt Mask Bits Indicating the Current Interrupt Priority Level

Condition Code Register (CCR) Symbols

Standard Definitions (Table A-5in Section A.5 Describes Exceptions)

S

L

E

U

N

Z

V

C

Block Floating Point Scaling Bit Indicating Data Growth Detection

Limit Bit Indicating Arithmetic Overflow and/or Data Shifting/Limiting

Extension Bit Indicating if the Integer Portion of A or B is in Use

Unnormalized Bit Indicating if the A or B Result is Unnormalized

Negative Bit Indicating if Bit 55 of the A or B Result is Set

Zero Bit Indicating if the A or B Result Equals Zero

Overflow Bit Indicating if Arithmetic Overflow has Occurred in A or B

Carry Bit Indicating if a Carry or Borrow Occurred in A or B Result

A - 8 INSTRUCTION SET DETAILS MOTOROLA