dsp56800e Freescale Semiconductor, Inc, dsp56800e Datasheet - Page 639

• Manufacturer Part Number: dsp56800e
• Description: 16-bit Digital Signal Controller Core
• Manufacturer: Freescale Semiconductor, Inc

TST
Instruction Fields:
Parallel Moves:
Instruction Opcodes:
Timing:
Memory:
Freescale Semiconductor
TST
TST
TST
1.The case where the destination of the data ALU operation is the same register as the destination of the par-
allel read operation is not allowed. Memory writes are allowed in this case.
2.This instruction occupies only 1 program word and executes in 1 cycle for every addressing mode.
Operation
TST
Operation
F GGG,X:<ea_m>
F X:<ea_m>,GGG
FF
TST
1 oscillator clock cycle
1 program word
2
Data ALU Operation
Operands
FF
Operands
Test Accumulator
15
15
15
0
0
0
F
Instruction Set Details
0
0
1
C
1
0
1
1
W
12
12
12
1
1
1
1
Test 36-bit accumulator.
11
11
11
1
1
0
G
G
0
X:(Rj)+N
Source
G
G
X:(Rj)+
0
X0
Y1
Y0
A1
B1
C
A
B
G
G
F
8
8
8
Parallel Memory Move
F
F
F
7
7
7
Comments
0
0
0
0
0
1
1
1
1
4
4
4
Destination
X:(Rj)+N
0
0
1
3
3
3
X:(Rj)+
X0
Y1
Y0
A1
B1
C
A
B
m
m
0
TST
R
R
1
1
A-295
R
R
1
0
0
0