WOODWARD 5466-026 Driver module

The syntactic variables shown below are encountered in the command descriptions on the following pages. In addition, other syntactic variables may be used and are defined in the particular command description in which they occur.An expression can be one or more numeric values separated by the arithmetic operators: plus (+), minus (-), multiplied by (*), divided by (/), logical AND (&), shift left (<<), or shift right (>>). Numeric values may be expressed in either hexadecimal, decimal, octal, or binary by immediately preceding them with the proper base identifier.If no base identifier is specified, then the numeric value is assumed to be hexadecimal.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.

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 “address + offset register” mode is also provided. 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.

Address Formats 

Addresses are entered as a hexadecimal number,would correspond to address $00020000. The address, or starting address of a range, can be qualified by a suffix of the form ^S, ^s, ^U, or ^u where S or s defines Supervisor address space, and U or u defines user address space. The default, when the qualifier is not specified, is Supervisor. Once a qualifier has been entered, it remains valid for all addresses entered for that command sequence, until the 187Bug is reentered or another qualifier is provided. An alternate form of Address is Rnn, which tells the bug to use the address contained in CPU Register Rnn, where nn=00 thru 31 (i.e., 00, 01,..., or 31).

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