Moves.f d0,(r0) – Freescale Semiconductor StarCore SC140 User Manual
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SC140 DSP Core Reference Manual
MOVES.4F
Status and Conditions that Affect Instruction
Status and Conditions Changed by Instruction
Example
moves.f d0,(r0)
The Ln bit is set in d0, and the number in d0 is positive (bit 39 = 0), so the saturated value $7FFF is written
to memory.
Register
Address
Bit Name
Description
MCTL[31:0]
AM3–AM0
Address modification bits for R0–R7.
SR[5:4]
S[1:0]
Scaling mode bits choose: no scaling, scale up one bit, or scale
down one bit.
Ln
L
Limited values are written to the destination if the Ln bit is set.
SR[18]
EXP
Determines the stack pointer used in instructions that have a stack pointer
as an operand.
Register
Address
Bit Name
Description
SR[6]
S
Scaling bit, set when the absolute value of the data moved (after
scaling and limiting) is greater than or equal to 0.25 and less than
0.75.
Register/Memory Address
Before
After
SR
$00E0 0000
$00E0 0000
R0
$0000 0050
L0:D0
$1:$00 8000 0000
($0050)
$7FFF