LM3S2939 Datasheet, PDF (65/749 Pages) Texas Instruments – Stellaris® LM3S2939 Microcontroller

Stellaris^® LM3S2939 Microcontroller
Bit/Field
31
30
29
28
27
Name
N
Z
C
V
Q
Type
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
Description
APSR Negative or Less Flag
Value Description
1 The previous operation result was negative or less than.
0 The previous operation result was positive, zero, greater than,
or equal.
The value of this bit is only meaningful when accessing PSR or APSR.
APSR Zero Flag
Value Description
1 The previous operation result was zero.
0 The previous operation result was non-zero.
The value of this bit is only meaningful when accessing PSR or APSR.
APSR Carry or Borrow Flag
Value Description
1 The previous add operation resulted in a carry bit or the previous
subtract operation did not result in a borrow bit.
0 The previous add operation did not result in a carry bit or the
previous subtract operation resulted in a borrow bit.
The value of this bit is only meaningful when accessing PSR or APSR.
APSR Overflow Flag
Value Description
1 The previous operation resulted in an overflow.
0 The previous operation did not result in an overflow.
The value of this bit is only meaningful when accessing PSR or APSR.
APSR DSP Overflow and Saturation Flag
Value Description
1 DSP Overflow or saturation has occurred.
0 DSP overflow or saturation has not occurred since reset or since
the bit was last cleared.
The value of this bit is only meaningful when accessing PSR or APSR.
This bit is cleared by software using an MRS instruction.
June 18, 2012
65
Texas Instruments-Production Data