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III
TAS
Test and Set an Operand
TAS
Instruction Fields:
Effective Address field -
Specifies the location of the tested operand. Only data alterable
addressing modes are allowed as shown:
Addressing Mode
MOTOROLA
4-168
Dn
An
(An)
(An) +
-(An)
(d16, An)
(de, An, Xn)
(bd, An, Xn)
Mode
000
-
010
011
100
101
110
110
Register
Addressing Mode Mode
Register
Reg. number: Dn
(xxx).w
111
000
-
(xxx).L
111
001
Reg. number: An
#(data)
-
-
Reg. number: An
Reg. number: An
Reg. number: An
(d16, PC)
-
-
Reg. number: An
(de, PC, Xn)
-
-
Reg. number: An
(bd, PC, Xn)
-
-
INSTRUCTION SET
CPU32 REFERENCE MANUAL
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