MAS281 Dynex, MAS281 Datasheet - Page 23

• Manufacturer Part Number: MAS281
• Description: MIL-STD-1750A Microprocessor
• Manufacturer: Dynex

* M = memory, P = processor (5 OSC cycles), B = processor (6 OSC cycles).
LOGICAL
Inclusive Logical OR
Logical AND
Exclusive Logical OR
Logical NAND
Set Bit
Reset Bit
Test Bit
Test and Set Bit
Set Variable Bit in Register
Reset Variable Bit in Register
Test Variable Bit in Register
Store Register Through Mask
BYTE
Load From Upper Byte
Load From Lower Byte
Store Into Upper Byte
Store Into Lower Byte
Exchange Bytes in Register
Operation
Table 7a: Instruction Summary (continued)
Op Code/Ext
E1
3X
4X F
E0
4A 8
E3
3X
4X E
E2
4A 7
E5
E4
4A 9
E7
E6
4A B
51
50
52
54
53
55
57
56
58
59
5A
5C
5E
97
8B
8D
8C
8E
9B
9D
9C
9E
EC
Mnemonic
ORR
ORB
ORBX
OR
ORIM
ANDR
ANDB
ANDX
AND
ANDM
XORR
XOR
XORM
NR
N
NIM
SBR
SB
SBI
RBR
RB
RBI
TBR
TB
TBI
TSB
SVBR
RVBR
TVBR
SRM
LUB
LUBI
LLB
LLBI
STUB
SUB I
STLB
SLBI
XBR
Format
R
B
BX
D, DX
IM
R
B
BX
D, DX
IM
R
D, DX
IM
R
D, DX
IM
R
D, DX
I, IX
R
D, DX
I ,IX
R
D, DX
I, IX
D,DX
R
R
R
D,DX
D,DX
I,IX
D DX
I, IX
D,DX
I, IX
D,DX
I,IX
S
M
1
2
2
3
2
1
2
2
3
2
1
3
2
1
3
2
1
4
5
1
4
5
1
3
4
4
1
1
1
4
3
4
3
4
4
5
4
5
1
Cycles *
P
0
1
1
0
0
0
1
1
0
0
0
0
0
1
1
1
0
1
2
1
1
2
0
0
1
0
0
1
0
3
0
1
1
2
1
3
1
2
0
MAS281
B
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
1
1
0
0
0
0
0
0
0
0
0
1
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