HP 68000 Series, User Manual

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@ Identifies a stack level, reserved symbols, or symbol tree root. For example:
Program Display_Source @2
(stack level)
Expression Display_Value @module
(reserved symbol)
Symbol Display Default @ecs\\
(symbol tree root)
’ ’ Identifies a character constant.
" " Identifies a character string constant.
\ Qualifies a symbol reference. For example:
Program Run Until updateSys\#20
\\ Specifies an executable file as the root of a symbol tree. The specified file must be
loaded into the debugger. For example:
Program Context Set @ecs\\main
Constants
A constant is a fixed quantity. Constants may be integers, floating point
values, or character string constants.
Integer Constants.
An integer constant may be defined as a sequence of numeric characters
optionally preceded by a plus or minus sign. If unsigned, the debugger
assumes the value is positive.
Positive integer constants may range between 0 and 2**31-1. When a constant
is negative, its two’s complement representation is generated. Negative
integer constants may range to –2**31.
Constants can be specified as binary, decimal, or hexadecimal values. This is
done by placing a prefix or suffix descriptor before or after the constant. The
Chapter 10: Expressions and Symbols in Debugger Commands
Expression Elements
419