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- TP 4.0 5.0 5.5 - LINKING TURBO C OR ASSEMBLER .OBJ OBJECT FILES
- Q. Are the .OBJ files generated by Turbo C and Turbo
- Assembler compatible with 4.0+?
- A. Yes. You can write Turbo C or Turbo Assembler routines and
- link the .OBJ files into your Turbo Pascal programs by using
- the {$L} compiler directive. See the CTOPAS example on the
- distribution diskette.
-
- TP 4.0 5.0 5.5 - OBJECT FILE CREATION
- Q. Does Turbo Pascal create object files that can be linked into
- other languages?
- A. Turbo Pascal 4.0+ generates .TPU (Turbo Pascal Unit) files, not
- .OBJ files. We've made that decision for many reasons:
-
- 1. TP 4.0+'s .TPU files are smaller than .OBJ's, and they
- contain symbolic information important to the support of
- Pascal's strict type conventions (types, constants,
- etc.).
- 2. .TPU files allow "smart linking" - elimination of unused
- code and data on a procedure-by-procedure basis.
- 3. .TPU's allow built-in project management through version
- 4.0+'s Make and Build commands.
- 4. .TPU's allow faster compilation speeds (34,000 lines per
- minute on a PS/2 Model 60).
-
- TP 4.0 5.0 5.5 - LINKING .OBJ OBJECT FILES FROM OTHER ASSEMBLERS
- Q. Will the $L compiler directive work for compiler object files
- other than assembler?
- A. That depends on the language. TURBO requires all the code
- in the .OBJ to be in *one* CODE segment, and all the data to
- be in *one* DATA segment. With assembly language that's easy,
- but it may not work with some high-level language compilers.
- You can use Turbo C to generate .OBJ files for use by Turbo
- Pascal programs. An example, CPASDEMO.PAS is included on the
- distribution disks.
-
- TP 4.0 5.0 5.5 - INTERFACING MODULES WRITTEN IN MICROSOFT C
- Q. Can I link modules, written in Microsoft C, with Turbo Pascal
- programs?
- A. Yes. M/S C .OBJ modules can be linked provided they do not
- use the C runtime library. The same limitations apply to M/S
- C modules as to Turbo C modules.
-