Panasonic MN1030 User Manual

Chapter  8   Writing Source Statements

130  Numbers

8.3

Numbers

The cross assembler provides three coding formats for use in numbers and (single) character constants 

(refer to section 8.4, "Character Constants").

•

Extended C language format

•

Intel format

•

Matsushita format

One of these formats is selected by using the notation directive.  The default is extended C language 

format.

Four radices can be used.

•

Radix 2 (binary)

•

Radix 8 (octal)

•

Radix 10 (decimal)

•

Radix 16 (hexadecimal)

Any radix can be selected by using the radix directive (but only decimal is allowed in extended C 

language format).  The default is decimal, regardless of coding format.

To code numbers with a radix other than the default, a fixed suffix indicating the radix is appended to 

the digits.

Radices and allowed digits

The next page shows how the various radices and formats are coded.

Radix 2(binary)

0  1

Radix 8(octal)

0  1  2  3  4  5  6  7 

Radix 10(decimal)

0  1  2  3  4  5  6  7  8  9

Radix 16(hexadecimal)

0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F  or

A  B  C  D  E  F  a

re hexadecimal digits that correspond to decimal 

10  11  12  13  14  15.

  Lower case letters can also be used.