Motorola DSP96002 User Manual page 298

FCMPM
of Two Floating-Point Operands
Operation:
S2 - S1 (parallel data bus move)
Description:
Subtract the absolute value (magnitude) of the two operands as specified in the operation column above.
No result is stored; however, the condition codes are affected as described. This instruction differs from
FSUB when S1=S2; in this case, the result is always +0 and therefore, N is cleared. Note that this is true
even if S1, S2 are infinity.
Input Operand(s) Precision: SEP Floating-Point.
Output Operand Precision: n.a.
CCR Condition Codes:
(Note: Since there is no destination, there is no rounding and therefore the condition code bits are set as-
suming an infiite precision result)
C
V
Z
N
I
LR
–
R
A
ER Status Bits:
INX
DZ
UNF
OVF
OPERR-Always cleared.
SNAN -Set if operand is a signaling NaN. Cleared otherwise.
NAN
UNCC -Always cleared.
A - 110
Compare Magnitude
- Not affected.
- Not affected.
- Set if source operands are equal. Cleared otherwise.
- Set if result is negative. Cleared otherwise.
- Set if anyone of the operands is infinity. Cleared otherwise.
- Not affected.
- Not affected.
- Not affected.
-Always cleared.
-Always cleared.
-Always cleared.
-Always cleared.
-Set if result is a NaN. Cleared otherwise.
DSP96002 USER'S MANUAL
Assembler Syntax:
FCMPM S1,S2 (move syntax - see the MOVE in-
struction description.)
FCMPM
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