s5u1c33000c Epson Electronics America, Inc., s5u1c33000c Datasheet - Page 62

• Manufacturer Part Number: s5u1c33000c
• Description: Cmos 32-bit Single Chip Microcomputer S5u1c33000c Manual
• Manufacturer: Epson Electronics America, Inc.

CHAPTER 4: SOURCE FILES
(4) Comments
(5) Blank Lines
46
Comments are used to describe the meaning of a series of routines or each statement. Comments cannot
comprise part of coding.
Definition of comment
A character string beginning with a semicolon (;) and ending with a line feed is interpreted as a comment.
Not only ASCII characters, but also other non-ASCII characters can be used to describe a comment.
It can be described with a label or instruction in one line.
Examples:
Restrictions
This assembler also allows a blank line containing only a return/line feed code. It need not be made into a
comment line using a semicolon; for example, when used as a break in a series of routines.
Only the following characters can be used:
A–Z a–z _ 0–9
A label cannot begin with a numeral. Uppercase and lowercase are discriminated.
Examples:
A comment is limited in length to 100 characters, including: a semicolon (;); spaces before, after and
inside the comment; and a return/line feed code.
When a comment extends to several lines, each line must begin with a semicolon.
Examples:
;These are
;These are
; comment lines.
comment lines.
;OK
FOO:
_Abcd:
L1:
; This line is a comment line.
LABEL:
ld
The second line will not be regarded as a comment. An error will result.
Both lines will be regarded as comments.
;Error
1label:
0_ABC:
%a,%b
EPSON
;This is the comment for LABEL.
;This is the comment for the instruction on the left.
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S5U1C33000C MANUAL