Zilog Z8F0130 - Manual (Page 316)

Using the Macro Assembler UM013037-1212
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Zilog Developer Studio II – Z8 Encore!
User Manual
Octal Numbers
Octal numbers are signed 32-bit integers ending with the character o or O and consisting of
the characters 0 – 7 . An octal number can have 1 to 11 characters. Positive numbers are
indicated by the absence of a sign. Negative numbers are indicated by a minus sign ( - )
preceding the number. Underscores (_) can be inserted between octal digits to improve
readability.
For example:
1234o ; octal number
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-1234o ; negative octal number
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1_234o; octal number with underscore
Character Constants
A single printable ASCII character enclosed by single quotes ( ' ) can be used to represent
an ASCII value. This value can be used as an operand value.
For example:
'A' ; ASCII code for "A"

'3' ; ASCII code for "3"
Operator Precedence
The following table shows the operator precedence in descending order, with operators of
equal precedence on the same line. Operators of equal precedence are evaluated left to
right. Parentheses can be used to alter the order of evaluation.
Shift Left (<<) and OR (|) have the same operator precedence and are evaluated from left to
right. If you must alter the order of evaluation, add parentheses to ensure the desired opera-
tor precedence.
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For example:
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Table 53. Operator Precedence
Level 1 ()
Level 2 ~ unary- ! high low
Level 3 ** * / %
Level 4 + - & | ^ >> <<
Level 5 < > <= >= == !=
Note: