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Address as a Parameter
Many commands use ADDR as a parameter. The syntax accepted
by 177Bug is similar to the one accepted by the MC68060 one-line
assembler. All control addressing modes are allowed. An Òaddress
+ offset registerÓ mode is also provided.
Address Formats
Table B-2 summarizes the address formats which are acceptable for
address parameters in debugger command lines.
Table B-2. Debugger Address Parameter Formats
Format
N
N+Rn
(An)
(d,An) or
d(An)
(d,An,Xn) or
d(An,Xn)
([bd,An,Xn],od)
([bd,An],Xn,od)
For the memory indirect modes, Þelds can be omitted.
For example, three of many permutations are as follows:
([,An],od)
([bd])
([bd,,Xn])
N
Notes
Example
140
130+R5
(A1)
(120,A1)
120(A1)
(&120,A1,D2)
&120(A1,D2)
([C,A2,A3],&100)
([12,A3],D2,&10)
([,A1],4)
([FC1E])
([8,,D2])
Ñ Absolute address(any valid expression).
Using the 177Bug Debugger
Description
Absolute address+contents of
automatic offset register.
Absolute address+contents of
the speciÞed offset register (not
an assembler-accepted syntax).
Address register indirect (also
post-increment, predecrement)
Address register indirect with
displacement (two formats
accepted).
Address register indirect with
index and displacement (two
formats accepted).
Memory indirect preindexed.
Memory indirect postindexed.
B
B-31
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