Motorola MVME187 manual Address as a Parameter

Entering Debugger Command Lines

A numeric value may also be expressed as a string literal of up to four characters. The string literal must begin and end with the single quote mark ('). The numeric value is interpreted as the concatenation of the ASCII values of the characters. This value is right-justified, as any other numeric value would be.

String	Numeric Value
Literal	(In Hexadecimal)
'A'	41
'ABC'	414243
'TEST'	54455354

Evaluation of an expression is always from left to right unless parentheses are used to group part of the expression. There is no operator precedence. Subexpressions within parentheses are evaluated first. Nested parenthetical subexpressions are evaluated from the inside out.

Valid expression examples:

Expression	Result (In Hex)	Notes
FF0011	FF0011
45+99	DE
&45+&99	90
@35+@67+@10	5C
%10011110+%1001	A7
88<<4	880	shift left
AA&F0	A0	logical AND

The total value of the expression must be between 0 and $FFFFFFFF.

Address as a Parameter

Many commands use addr as a parameter. The syntax accepted by 187Bug is similar to the one accepted by the M88000 one-line assembler. All control addressing modes are allowed. An Òaddress + offset registerÓ mode is also provided.

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