Zilog Z8F0130 - Manual (Page 375)

UM013037-1212 DEBUG
Zilog Developer Studio II – Z8 Encore!
User Manual
351
1. In the assembly code, define the string segment (for example, strsect ) to be a seg-
ment located in ROM.
2. Use the following linker command:
COPY strsect NULL
The linker associates all of the labels in strsect with an address in ROM and does
not generate any loadable data for strsect . This is useful when ROM is already pro-
grammed separately, and the address information is needed for linking and debugging.
Example 4
To generate debug information without generating code:
Use the COPY command in the linker to copy the segment to the predefined NULL space.
If you copy the segment to the NULL space, the region is still allocated but no data is writ-
ten for it.
COPYmyseg NULL
DEBUG
The DEBUG command causes the linker to generate debug information for the debugger.
This option is applicable only if the executable file is IEEE 695.
Syntax
-DEBUG
DEFINE
The DEFINE command creates a user-defined public symbol at link time. This command is
used to resolve external references ( XREF ) used in assemble time.
Syntax
DEFINE =
<symbol name> is the name assigned to the public symbol.
<expression> is the value assigned to the public symbol.
Example
DEFINE copy_size = copy top of data_seg - copy base of data_seg
Refer to the Linker Expressions section on page 359 for the format to write an expression. Note: