Motorola DSP96002 User Manual page 356

FSUB.S
Operation:
D - S ROUND(SP)
(parallel data bus move)
Description:
Subtract the two specified operands, round to single precision and store the result in the destination oper-
and D. For the special case of |S| = |D|, the result can be +0 or -0; the sign of the resulting zero will be the
sign of the input operand in D.
Input Operand(s) Precision: SEP Floating-Point.
Output Operand Precision: SP Floating-Point.
CCR Condition Codes:
C
V
Z
N
I
LR
–
R
A
ER Status Bits:
INX
DZ
UNF
OVF
OPERR-Set if operands are like-signed infinities. Cleared otherwise.
SNAN -Set if operand is a signaling NaN. Cleared otherwise.
NAN
UNCC -Always cleared.
IER Flags: Flags changed according to standard definition.
A - 168
Floating-Point Subtract
D
- Not affected.
- Not affected.
- Set if result is zero. Cleared otherwise.
- Set if result is negative. Cleared otherwise.
- Set if result is infinity. Cleared otherwise.
- Not affected.
- Not affected.
- Not affected.
-Set if result is inexact. Cleared otherwise.
-Always cleared.
-Set if result underflows. Cleared otherwise.
-Set if result overflows. Cleared otherwise.
-Set if result is a NaN. Cleared otherwise.
DSP96002 USER'S MANUAL
Assembler Syntax:
FSUB.S S,D
(move syntax - see the MOVE instruction description.)
FSUB.S
MOTOROLA