Instruction formats and opcodes instruction fields – Freescale Semiconductor StarCore SC140 User Manual
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SC140 DSP Core Reference Manual
PUSHN
Instruction Formats and Opcodes
Instruction Fields
De
EEEEE
Extension Pairs, Even Registers, and Loop Start Registers
Do
eeeee
Modifier Control, Odd Registers, and Loop Counter Registers
Instruction
Words Cycles Type
Opcode
15
8
7
0
PUSHN De
1
1
4
1
0
0
1
E
E
E
0
0
0
1
E
0
1
E
0
15
8
7
0
PUSHN Do
1
1
4
1
0
0
1
e
e
e
1
0
0
1
e
0
1
e
0
00000
D0
01000
D4
10000
R0
11000
R4
00001
B0
01001
B4
10001
N0
11001
M0
00010
—
01010
—
10010
SA0
11010
SA2
00011
D0.E
01011
D4.E
10011
D0.E:D1.E
11011
D4.E:D5.E
00100
D2
01100
D6
10100
R2
11100
R6
00101
B2
01101
B6
10101
N2
11101
M2
00110
-
01110
—
10110
SA1
11110
SA3
00111
D2.E
01111
D6.E
10111
D2.E:D3.E
11111
D6.E:D7.E
Note:
If registers D8–D15 or R8–R15 are accessed instead of D0–D7 or R0–R7, a prefix is used.
00000
D1
01000
D5
10000
R1
11000
R5
00001
B1
01001
B5
10001
N1
11001
M1
00010
VBA
01010
SR
10010
LC0
11010
LC2
00011
D1.E
01011
D5.E
10011
—
11011
—
00100
D3
01100
D7
10100
R3
11100
R7
00101
B3
01101
B7
10101
N3
11101
M3
00110
-
01110
MCTL
10110
LC1
11110
LC3
00111
D3.E
01111
D7.E
10111
—
11111
—
Note:
If registers D8–D15 or R8–R15 are accessed instead of D0–D7 or R0–R7, a prefix is used.