AX51: ABSOLUTE CODE SEGMENTS BEYOND 64 KBYTE
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I am programming a Dallas DS80C390 CPU in Contiguous Mode. When I define an absolute CSEG beyond the 64KB limit, I get the following linker error:
*** ERROR L107: ADDRESS SPACE OVERFLOW SPACE: CODE SEGMENT: ?CO?BITMAP?3 LENGTH: 0011F5H
How can I solve this problem?
The CODE and XDATA segments are limited to a single 64KB segment. This limitation allows you to port code from standard 8051 to the new extended address range without re-working the address calculations in the program.
To use the extended 16MB address space, the toolchain adds new memory classes: HDATA, HCONST, ECODE. Therefore, you need to define absolute segments as shown below:
?CO?MY_CONST SEGMENT HCONST AT 0120000H RSEG ?CO?MY_CONST my_image: DB 0,1,2,3 END
This code links without any errors or warnings.
Last Reviewed: Friday, July 22, 2005
of your data.