Description: Apple FORTRAN: Specifications (Discontinued)
Header: Apple FORTRAN: Specifications (Discontinued)

 --Order #: A2D0032

 --Technical Specifications:

    1. Format: 16-sector disks
    2. Language:
         a. Pascal
         b. Produces P-code, which runs in the Apple Pascal Operating System
    3. Intrinsic Functions:
         ABS, ACOS, AINT, ALOG, ALOG10, AMAX0, AMAX1, AMIN0, AMIN1, AMOD,
         ANINT, ASIN, ATAN, ATAN2, CHAR, COS, COSH, DIM, EOF, EXP, FLOAT,
         IABS, ICHAR, IDIM, IFIX, INT, ISIGN, LGE, LGT, LLE, LLT, MAX0, MAX1,
         MIN0, MIN1, MOD, NINT, REAL, SIGN, SIN, SINH, SQRT, TAN, TANH

 --Package:

    1. Disk: Apple FORTRAN System
    2. Disk: Apple FORTRAN System
    3. Manual: Apple FORTRAN Language Reference

 --System Configuration:

    1. Computer:
      a. Apple II
      b. Apple II Plus with Language Card
      c. Apple IIe
      d. Apple IIc
    2. disk drive: Apple Disk II

 NOTE:  While a single drive system is adequate for very small programs, two
       drives are strongly recommended for ease of operation and more serious
       program development

    3. video display: Monitor II
    4. Apple Pascal package

 --Features:

    1. Industry standard, ANSI X3.9-1978

    2. ANSI Standard Subset of the FORTRAN 77 standard

         --Supports enhancements and facilities from the full FORTRAN 77
             language

         --Contains enhancements beyond the full FORTRAN 77 specifications:
             1. Compiler directives in the source code permit many files in
 one
                compilation.
             2. An additional parameter to the OPEN statement allows you to
                specify that the file is blocked or unblocked.

         --Minor differences between the ANSI Standard Subset FORTRAN 77 and
             Apple FORTRAN:
             1. Subprogram names cannot be passed as parameters.
             2. INTEGER and REAL data types have different storage
                requirements:
                  a. 2 bytes for INTEGER
                  b. 4 bytes for REAL

 NOTE: Apple FORTRAN does not support double-precision arithmetic.

    3. Apple Pascal Operating System Linker links:
         --FORTRAN P-Code files
         --Compiled P-code
         --Assembled machine code

    4. Interfaces to routines in Pascal system library
         --High-res graphics
         --Sound generation
         --Hand control routines

    5. Subscript expressions may include array elements and function calls

    6. DO statement limits may be defined by expressions, rather than just
         single variables

    7. Input/output (I/O) units may be specified by expressions, rather than
         just constants or simple variables

    8. The I/O list of a WRITE statement may include expressions

    9. All combinations of FORMATTED/UNFORMATTED and SEQUENTIAL/DIRECT files
         are allowed, with the following restrictions:
         --BACKSPACE is supported only for files connected to the blocked
             devices -- it is not supported for UNFORMATTED SEQUENTIAL files;
         --DIRECT files must be connected to block devices
 Apple Technical Communications


 Keywords:  SPECSHT