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Pascal For Mac

Developer Apple Computer OS family UCSD Pascal Working state Historic Source model Closed source Initial release August 1979; 41 years ago 1.3 (Apple II) Latest release 1.1 (Apple III) / 1984; 36 years ago[1] Kernel type Monolithic License Apple Software License Agreement 1. Dev Pascal For Mac 2. Pascal For Mac Os 3. Download For Mac 4. Turbo Pascal For Macintosh Book  Xcode 3.2.x-4.2 compatibility (Mac OS X 10.6) FPC 3.2.0 is qualified for use with Mac OS X 10.4 till macOS 10.15. There is however an issue when compiling dynamic libraries with FPC under Mac OS X 10.6 due to a bug in the Xcode 3.2.x linker. This bug has been fixed in Xcode 4.  The GNU Pascal Run-Time System (RTS) is also provided as free software under the GNU Lesser General Public License version 1 or later. The text of both copyrights is provided in the software package. There is also a free GNU Ada Translator (GNAT) for Mac OS X.

Apple Pascal is an implementation of Pascal for the Apple II and Apple III computer series. It's based on UCSD Pascal[2]Just like other UCSD Pascal implementations, it ran on its own ( Operating System,[3] a derivative of UCSD p- System with graphical extensions).

Turbo Pascal,the world-standard Pascal , adds Object-Oriented Programming. Combining the Simplicity of Apple's language with The Power and efficiency of C to create Turbo Pascal,the object-oriented for the rest of us. . GNU Pascal 3.4.6u4 installer for Mac OS X 10.6 Intel native and PowerPC cross-compiler15.7 MB). GNU Pascal 3.4.6u4 compiler sources and double-clickable building script (for Mac OS X 10.3 - 10.6) (22.2 MB) IDE integration GNU Pascal is a command-line compiler, but there are plug-ins for the MetroWerks CodeWarrior IDE.

Originally released for the Apple II in August 1979, just after Apple DOS 3.2, Apple Pascal pioneered a number of features that would later be incorporated into DOS 3.3, as well as others that would not be seen again until the introduction of ProDOS.

Dev Pascal For Mac

The Apple Pascal software package also included disk maintenance utilities,[4] and an assembler[5] meant to complement the Apple's built-in 'monitor' assembler. A compiler (written by Silicon Valley Software, Sunnyvale California) compiling to the same p-code as Pascal was also available.[6]

Comparison of Pascal OS with DOS 3.2[edit]

Apple Pascal Operating System introduced a new disk format.[7] Instead of dividing the disk into 256-byte sectors as in DOS 3.2, Apple Pascal divides it into 'blocks' of 512 bytes each.[8] The p-System also introduced a different method for saving and retrieving files. Under Apple DOS, files were saved to any available sector that the OS could find, regardless of location. Over time, this could lead to file system fragmentation, slowing access to the disk. Apple Pascal attempted to rectify this by saving only to consecutive blocks on the disk.[9]

Other innovations introduced in the file system included the introduction of a timestamp feature. Previously only a file's name, basic type, and size would be shown. Disks could also be named for the first time. [10]

Limitations of the p-System included new restrictions on the naming of files.[11] Writing files only on consecutive blocks also created problems, because over time free space tended to become too fragmented to store new files. A utility called Krunch was included in the package to consolidate free space.[12]

The biggest problem with the Apple Pascal system was that it was too big to fit on one floppy disk. This meant that on a system with only one floppy disk drive, frequent disk swapping was needed. A system needed at least two disk drives in order to use the operating system properly.

Pascal For Mac Os Release history[edit] Platform Date OS comment Apple II 1979 Apple Pascal 1.0 1980 Apple Pascal 1.1 1983 Apple Pascal 1.2 1985 Apple Pascal 1.3 Apple III 1981[13] Apple Pascal 1.0 1983[14] Apple Pascal 1.1 Sources[edit] Download Turbo Pascal For Mac

Apple (1980). Apple II Pascal Operating System Reference Manual(PDF). Retrieved September 12, 2018.CS1 maint: ref=harv (link) Apple (1981). Apple III Pascal - Introduction, Filer and Editor(PDF). Retrieved September 12, 2018.CS1 maint: ref=harv (link) Apple (1983). Apple III Update 1.1(PDF). Retrieved September 12, 2018.CS1 maint: ref=harv (link)

Notes[edit] 1. ^'Archived copy'. Archived from the original on April 30, 2015. Retrieved April 23, 2015.CS1 maint: archived copy as title (link) 2. ^Apple 1980, p. 248 3. ^Apple 1980, p. 2 4. ^Apple 1980, p. 183 5. ^Apple 1980, p. 134 6. ^'Apple Fortran Language Reference Manual'(PDF). 7. ^Apple Pascal was designed to take advantage of the then new 140K 5.25' floppy disks. 8. ^Apple 1980, p. 25 9. ^Apple 1981, p. 162 10. ^Under Apple DOS, disks can only be given a volume number. Apple Pascal disk volume names can be up to seven characters in length. See Apple 1980, p. 27 11. ^Apple DOS allowed filenames up to thirty characters long and any ASCII character could be used, Apple Pascal dropped the length to fifteen characters and allowed only letters, numbers and periods to be used. See Apple 1980, p. 30 12. ^Apple 1980, p. 49 13. ^Apple 1981, p. I 14. ^Apple 1983, p. I Turbo Pascal For Macintosh Book Retrieved from 'https://en.wikipedia.org/w/index.php?title=Apple_Pascal&oldid=982629356'