Zilog EZ80F916 - Manual (Page 202)

UM014423-0607
ZiLOG Developer Studio II
eZ80Acclaim! ® User Manual
182
Using the Macro Assembler
You use the Macro Assembler to translate eZ80Acclaim! assembly language files with the
.asm
extension into relocatable object modules with the
.obj
extension. After your relo-
catable object modules are complete, you convert them into an executable program using
the linker/locator. The Macro Assembler can be configured using the Assembler page of
the Project Settings dialog box (see “Project Settings—Assembler Page” on page 59).
NOTE: The Command Processor allows you to use commands or script files to automate
the execution of a significant portion of the IDE’s functionality. For more
information about using the Command Processor, see “Using the Command
Processor” on page 387.
The following topics are covered in this chapter:
•
“Address Spaces and Segments” on page 182
•
“Output Files” on page 186
•
“Source Language Structure” on page 187
•
“Expressions” on page 192
•
“Directives” on page 196
•
“Conditional Assembly” on page 216
•
“Macros” on page 219
•
“Labels” on page 222
•
“Addressing Modes” on page 224
•
“Source Language Syntax” on page 225
•
“Compatibility Issues” on page 229
•
“Troubleshooting the Assembler” on page 229
•
“Warning and Error Messages” on page 230
NOTE: For more information about eZ80Acclaim! CPU instructions, see the “CPU
Instruction Set” section in the eZ80
®
CPU User Manual (UM0077).
ADDRESS SPACES AND SEGMENTS
The eZ80
®
architecture divides the entire memory space into various memory regions.
These memory regions are called address spaces in the assembler. Each address space can
have various segments associated with it. A segment is a contiguous set of memory loca-
tions within an address space. The segments can be predefined by the assembler or user
defined.