Stereo System User Manual

A - 172 DSP96002 USER’S MANUAL MOTOROLA
FTFR.S Transfer Floating-Point FTFR.S
Data ALU Register
Operation:
S → ROUND(SP) → D
(parallel data bus move)
Assembler Syntax:
FTFR.S S,D
(move syntax - see the MOVE instruction description.)
Description:
Take the contents of the specified source operand S, round to single precision and store the result in the
destination operand D. If S and D are the same register, this is equivalent to “Round to Single Precision”
instruction.
Input Operand(s) Precision: SEP Floating-Point.
Output Operand Precision: SP Floating-Point.
CCR Condition Codes:
C - Not affected.
V - Not affected.
Z - Set if result is zero. Cleared otherwise.
N - Set if result is negative. Cleared otherwise.
I - Set if result is infinity. Cleared otherwise.
LR - Not affected.
–
R - Not affected.
A - Not affected.
ER Status Bits:
INX -Set if result is inexact. Cleared otherwise.
DZ -Always cleared.
UNF -Set if result underflows. Cleared otherwise.
OVF -Set if result overflows. Cleared otherwise.
OPERR-Always cleared.
SNAN -Set if operand is a signaling NaN. Cleared otherwise.
NAN -Set if result is a NaN. Cleared otherwise.
UNCC -Always cleared.
IER Flags: Flags changed according to standard definition.