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Text File
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2000-06-30
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4KB
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112 lines
Linker for Microsoft/Cromemco Products
Command Line
Switches
Error Messages
:LINK:
The linker is used to link assembled, Compiled programs modules
together, load them into memory, and begin execution if desired. The
program modules can come from different sources Some of the sources are
BASCOM
COBOL
FORTRAN
ASSEMBLER
RPG
:LINK:
The format for the involk of Linker is
LINK <filename1.ext/s,filename2.ext/s,....>
where filename stands for Disk drive letter followed by a colon
followed by the absolute file name
ext is used if the module extension is different than .rel
/s stands for switch options.
EXAMPLE of a link
LINK MAIN,FORLIB/S,MAIN/N/G/E
The first MAIN is the name of the module from the fortran compiler
The FORLIB/S is the library of standard fortran routines that will
be selected
The MAIN/N/G/E means to name the .COM file MAIN and to save it on
current disk then execute MAIN automatically.
:LINK:
SWITCH OPTIONS
Each switch option is preceded by a /
E .... Exit to operating system
| The /E switch may also be followed by the global symbol where
| execution should begin when the program is run, by using the
| format: /E:LABEL Note that the label may be a maximum
| of six characters in length. Link will insert a JMP LABEL
| instruction at address 0100(hex) so that execution will begin
| at the desired location. An ORG statement to 0100(hex) must
| not be used in any of the source modules when using this option,
| since the ORG will override the /E switch mechanism.
G .... Go start execution
Start execution of the program as soon as the current command
line has been interpreted.
M .... Map all symbols
List both all the defined globals and their values and all
undefined globals followed by an asterisk.
R .... Reset the linker
Puts the linker back to its initial state. the /R is used
to restart LINK if the wrong file was loaded by mistake.
S .... Search file
Search the disk file having the filename immediately preceding
the /S in the command string, to satisfy any undefined globals.
This is convenient for having the linker search a library file
of much-used routines.
U .... List all undefined globals
List all undefined globals as soon as the current command line
has been interpreted and executed. Link defaults to this
switch; therefore it is generally not needed.
| H .... List all values in hexidecimal
| List all numeric values, such as defined and undefined globals,
| program start address, data and program size, in hexidecimal.
| Link defaults to this switch; therefore it is generally not
| needed.
| O .... List all values in octal
| List all numeric values octal. This switch behaves like the
| /H option, except the base used for numeric display is base 8.
| X .... Generate a .HEX output file
| The code output of the linker will be in Intel .HEX format
| instead of the default .COM format.
| Y .... Generate a symbol table file
| The linker will generate a .SYM file, containing a list of all
| globals and their addresses, suitable for use with a symbolic
| debugging tool such as SID.COM or ZSID.COM.
:LINK:
ERRORS
No start address a /G is issued but no main program module
has been loaded.
Loading error The file given is not a properly formatted
link object file.
Fatal Table Collision There is not enough memory
Command error Unrecognizable link command
File not found Specified file not on specified disk
mult def global More than one definition of the global name
(possibly wrong modules combined)
:LINK: