Assembler as62 – Epson S5U1C62000A User Manual
Page 244
Assembler as62 (1)
Development Tools
Outline
Converts the mnemonic of the source files into object codes (machine
language) of the S1C62. The results are output in a relocatable object file.
This assembler includes preprocessing functions such as macro definition/call,
conditional assembly, and file-include functions.
Flowchart
Start-up Command Usage
Usage: as62 [options] <file name>
Options: -d <symbol> Add preprocess definition
-e Output error log file (.ERR)
-g Add source debug information in object
-l Output relocatable list file (.LST)
-o <file name> Specify output file name (.O or no extension)
File name: Source file name (.DAT, .S, or .MS)
Assembler
as62
file.s
or
file.dat
Assembly source file
file.o
file.ms
file.lst
Object file
Relocatable
list file
file.err
Error file
Preprocessed
source file
to Linker
Pseudo-instructions
#include
<file name>
Inserts other file in the source file.
#define
<define name> [<string>]
Defines a character string with a define name.
#macro
<macro name> [par] [,par] ...
Defines a statement string with a macro name.
<statements>
Branch labels in a macro are specified with $$1 to $$n.
#endm
(par: Dummy parameters)
#ifdef
<name>
Conditional assembling
<statements 1>
<name> defined: <statements 1> is assembled.
[#else
<name> undefined: <statements 2> is assembled.
<statements 2>]
#endif
#ifndef <name>
Conditional
assembling
<statements 1>
<name> undefined: <statements 1> is assembled.
[#else
<name> defined: <statements 2> is assembled.
<statements 2>]
#endif
.code
Declares the start of a code section.
.bss
Declares the start of a bss section.
.org
<address>
Specifies an absolute address.
.page
<page number>
Specifies a page number.
.bank
<bank number>
Specifies a bank number.
.align
<alignment number>
Specifies alignment of a section.
.comm
<global symbol> <size>
Defines a global symbol and secures memory area in a
bss section.
.lcomm
<local symbol> <size>
Defines a local symbol and secures memory area in a
bss section.
.set
<symbol> <address>
Defines an absolute address for a symbol.
.global
<symbol>
Declares the symbol as global.
.codeword <data>[ <data> ... <data>]
Defines codes in the CODE section.
.list
Turns output ON(.list)/OFF(.nolist) in the assembly list
.nolist
file. (Effective only when the -l option is specified)
.stabs
"<file name>", FileName
Outputs source information for debugging.
.stabn
0, FileEnd
(Effective only when the -g option is specified)
.stabn <line
number>,
LineInfo