The Program Development Process

Pascal-86 User's Guide

In the latter case (an environment without Intel operating system support), you will need to provide your own operating system support for the run-time libraries. Appen-dix K gives instructions for writing your own file/device drivers and the software interface required by the run-time libraries.

In the iRMX 86-based software run-time environment, the Universal Development System Interface layer must be configured into iRMX 86 in order to run P ASCAL-86 programs.

You may increase the speed of floating-point arithmetic operations in your programs by including an 8087 Numeric Data Processor in your system. Detailed specifications are provided in the iAPX 86,88 User's Manual, Order Number 210201-001.

1.5 Compiler Installation

The Pascal-86 software package includes this manual (the Pascal-86 User's Guide), the Pascal-86 Pocket Reference, Order Number 121541, supplementary literature including a customer letter and Problem Report forms, and one double- and two single-density program diskettes. The diskettes contain the following files:

PASC86.86 E8087 PROG4.SRC

P86RNO.LIB E8087.LIB PROG5.SRC

P86RN1.LIB 8087.LIB PROG6.SRC

P86RN2.LIB 87NULL.LIB PROG7.SRC

P86RN3.LIB PROG 1.SRC PROG8.SRC

RTNULL.LIB PROG2A.SRC PROG9.SRC

DCON87.LIB PRG2B1.SRC DATA2

CEL87.LIB PRG2B2.SRC DATA3

EH87.LIB PROG3.SRC DATA4

The file named PASC86.86 contains the Pascal-86 compiler. The files P86RNO.LIB, P86RNl.LIB, P86RN2.LIB, P86RN3.LIB, RTNULL.LIB, DCON87.LIB, CEL87.LIB, EH87.LIB, E8087~ E8087.LIB, 8087.LIB, and 87NULL.LIB are the run-time support libraries and modules. (Detailed descriptions of the 8087 libraries are located in the 8087 Support Library Reference Manual Order Number 121725.) PROGl.SRC, PROG2A.SRC, PRG2Bl.SRC, PRG2B2.SRC, PROG3.SRC, PROG4.SRC, PROG5.SRC, PROG6.SRC, PROG7.SRC, PROG8.SRC, and PROG9.SRC are the source code for the sample programs in Chapters 1, 2, and 9.

DATA2, DATA3, and DATA4 are the data files for the sample programs.

NOTE

In the iRMX 86 environment the ".86" extension is dropped.

Once you have your compile-time environment configured as described in section 1.4.1, copy the compiler and run-time library files from the release diskette to the single- or double-density diskette or hard disk you are using on your system.

The sample programs provided on the release diskette may be used for demonstration and checkout in your development environment. Operating instructions for these programs are given in Chapter 9.

1.6 The Program Development Process

The Pascal-86 compiler and run-time libraries are part of an integrated set of tools that make up the total iAPX 86 or iAPX 88 development solution for your micro-computer system. Figure 1-1 shows how you use these tools to develop programs. The shaded boxes represent Intel products.

Pascal-86 User's Guide

PASCAL·a6 SOURCE

LEGEND

INTEL DEVELOPMENT TOOLS AND OTHER PRODUCTS

D

OTHER RELOCATABLE

OBJECT MODULES

RELOCATABLE

r- - · -1 I I

OBJECT t----:----~~I MODULE

LIBRARIES

Figure 1-1. Pascal-86 Program Development Process

Overview

ABSOLUTE OBJECT

CODE

CUSTOM·

DESIGNED USER SYSTEM

121539-69

Overview

1-8

Pascal-86 User's Guide

The steps in the software development process are as follows:

1. Define the problem completely.

2. Outline the proposed solution in terms of hardware plus software. Once this step is done, you may begin designing your hardware.

3. Design the software for your system. This important step may consist of several sub-steps, including breaking down the task into modules, choosing the program-ming language, and selecting the algorithms to be used.

4. Code your programs and prepare them for translation using a text editor.

5. Translate your Pascal program code using the Pascal-86 compiler.

6. Using the text editor, correct any compile-time errors; then recompile.

7. Using 8086-based LINK86 (and LOC86 if needed), link the resulting relocata-ble object module to the necessary run-time libraries supplied with Pascal-86, and locate your object code. The use of LINK86 and LOC86 depends on your application; for detailed instructions, see the iAPX 86,88 Family Utilities User's Guide.

8. You can then run your programs and debug them, with the aid of run-time error messages and diagnostic output generated by the compiler's program checkout control. Your execution vehicle for debugging can be an operating system with the DEBUG-86 or PSCOPE applications debugger and an ICE-86A or ICE-88 In-Circuit Emulator, or RAM on an SDK-86 System Design Kit or iSBC 86/ 12A Single Board Computer with resident monitor.

9. Translate and debug your other system modules, including those coded in other languages. Once you have performed the desired amount of testing on your individual modules, you can link them together and locate them using 8086-based LINK86 and LOC86.

10. Test and debug your software in your chosen debugging environment (see step 8).

11. Produce a final debugged object module and transfer it to your run-time environ-ment. How you do this depends on the nature of that environment and the tools you are using.

• If it is a Series III, use the Series III RUN command to load and run your program.

• If it is RAM on an SDK-86 kit or an iSBC 86 Single Board Computer system, use OH86 to obtain a hexadecimal object code file. Then, if you have been developing your programs on a Series III, use an appropriate tool for downloading them into your execution board (the ICE-86A or ICE-88 In-Circuit Emulator, the SDK-C86 Software and Cable Interface, or the iSBC 957 Interface and Execution Package).

• If it is ROM on an SDK-86 kit, iSBC Single Board Computer system, or your own custom-designed hardware, use the Universal PROM Programmer (UPP) with its Universal PROM Mapper (UPM) software to transfer your program to PROM.

Note that you can do your hardware development in parallel with software develop-ment, and that you can take intermediate hardware/software integration steps if you are using the ICE-86A or ICE-88 In-Circuit Emulator.

For instructions on the use of other Intel products discussed in this section, refer to the manuals listed in your specific operating-system appendix.

Pascal-86 User's Guide