Motorola DSP96002 - Manual (Page 490)

A - 302 DSP96002 USER’S MANUAL MOTOROLA
SPLIT Extract a 16-bit Integer SPLIT
Instruction Fields:
D d d d
Dn.L n n n where nnn = 0-7
S s s s
Dn.L n n n where nnn = 0-7
Timing: 2 + mv oscillator clock cycles
Memory: 1 + mv program words
Operation:
S.L {31:16}
→
D.L {15:0} (parallel data bus move)
S.L {31}
→
D.L {31:16}
Assembler Syntax:
SPLIT S,D
(move syntax - see the Move instruction de-
scription.)
Description:
Transfer the 16 MSBs of the lower portion of source operand S into the 16 LSBs of the lower portion of
destination D and sign-extend to 32 bits.
Input Operand(s) Precision: 32-bit integer.
Output Operand Precision: 32-bit integer.
CCR Condition Codes:
C - Not affected.
V - Always cleared.
Z - Set if result is zero. Cleared otherwise.
N - Set if result is negative. Cleared otherwise.
I - Not affected.
LR - Not affected.
–
R - Not affected.
A - Not affected.
ER Status Bits: Not affected.
IER Flags: Not affected.
Instruction Format: SPLIT S,D (move syntax - see the Move instruction description.)
11 0sss 1011 0ddd
31 14 13 0
OPTIONAL EFFECTIVE ADDRESS EXTENSION OR IMMEDIATE LONG DATA
DATA BUS MOVE FIELD