This version The latest release version is 3.2.0Estimates for mac.
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The language and the runtime library are almost compatible with Turbo Pascal 7.0 and recent Delphi releases. There is also partial support for the Macintosh pascal dialect. There are two methods to install Free Pascal for Mac OS X. 1) Download and install the Mac OS X installer package 2) Install fpc using fink This second method. Borland Turbo Pascal is a Pascal programming language compiler with an Integrated Development Environment targeted at the hobbyist and entry-level market. There were versions for CP/M and DOS. For a time, it was sold along side their professional 'Borland Pascal' product line. Borland also produced a set of 'toolbox' libraries along side their earlier versions. Free download Free Pascal Free Pascal for Mac OS X. Free Pascal (aka FPK Pascal) is a 32 and 64 bit professional Pascal compiler.
'Unknown developer' error when installing (Mac OS X 10.7 and later)If you get the message that the FPC installer was created by an unknown developer and cannot be opened, right-click (or ctrl-click) on the installation package and choose 'Open' in the contextual menu. If this does not work, you may first have to go to 'System Preferences' -> 'Security & Privacy' -> 'General', and 'Allow apps downloaded from: Mac App Store and Identified developers'. These workarounds are required because we do not pay Apple 99 euro per year, which would prove you can trust us.
Xcode 11+ compatibility (macOS 10.15 Catalina and later)FPC 3.2.0 is qualified for use with Mac OS X 10.4 till macOS 10.15. Xcode 11+ no longer includes support for compiling Intel 32 bit programs. If you wish to compile such programs, you will have to copy an older Mac OS X SDK from a previous Xcode installation and point the compiler to it with the -XR command line parameter.
Xcode 10+ compatibility (macOS 10.14 Mojave and later)FPC 3.2.0 is qualified for use with Mac OS X 10.4 till macOS 10.15. Xcode 10+ installs some command line file in different locations compared to previous releases. If you already installed FPC under a previous Mac OS X/OS X/macOS version, you will have to reinstall FPC 3.2.0 under macOS 10.14 to get a configuration file that enables the compiler to find the necessary files). See also the section below on how to install the command line tools.
Xcode 5+ compatibility (OS X 10.9 and later; for OS X 10.8, see below)FPC 3.2.0 is qualified for use with Mac OS X 10.4 till macOS 10.15. Xcode 5 and later however no longer install the command line tools by default, which are required by FPC. To install them manually, open '/Applications/Utilities/Terminal', execute xcode-select --install and choose 'Install'. Afterwards, FPC will function correctly.
Xcode 4.3-5.x compatibility (Mac OS X 10.7/OS X 10.8)FPC 3.2.0 is qualified for use with Mac OS X 10.4 till macOS 10.15. Xcode 4.3 and later however no longer install the command line tools by default, which are required by FPC. To install them manually, open Xcode, go to Preferences, select 'Downloads;' and install the 'Command Line Tools'. Afterwards, FPC will install and function correctly.
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. You can work around the bug in Xcode 3.2.x by using the -k-no_order_inits command line parameter when compiling a dynamic library.
Download the 3.2.0 release in 1 big file:
- fpc-3.2.0.intel-macosx.dmg (162 MB)contains an installation package for compiling Intel (32 bit and 64 bit) programs (updated to install successfully on macOS 10.14 'Mojave').
- fpc-3.2.0.intel-macosx.cross.powerpc-macosx.dmg (125 MB)contains an add-on installation package for compiling PowerPC (32 and 64 bit) programs.
- fpc-3.2.0.intel-macosx.cross.ios.dmg (178 MB)contains an installation package for compiling iPhone/iPod Touch/iPad programs. For Xcode templates, see Phil Hess' site.
- fpc-3.0.5.intel-macosx.cross.ios.dmg (66 MB)contains an installation package for compiling iPhone/iPod Touch/iPad programs. For Xcode templates, see Phil Hess' site.
- fpc-3.2.0.intel-macosx.cross.jvm.dmg (12 MB)contains an add-on installation package for compiling JVM programs.
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There is a rich tradition of operating systems written in Pascal. The probably best-known example is classical Mac OS, a very influential historic operating system, that was nearly entirely written in Pascal (not to be confused with macOS that is written in Objective C). Other operating systems written in Pascal include Lisa OS and the Lillith system software. The operating system for the famous Xerox Star was written in the Mesa programming language, a modular language of the Pascal family. Today there are several attempts to write a Pascal-based operating system from scratch. The following, probably incomplete, list contains some approaches to use Free Pascal for creating an OS.
An Operating System written from scratch with Free Pascal compiler.Interested in developing an OS with Free Pascal? This project can be used as a starting point (though incomplete and YOU ARE WELCOME to complete it :-)).
StreamOS is 32-bit operating system written in Object Pascal using Free Pascal Compiler. It’s designed for:
- scientific tasks such as long calculations;
- finding the best architecture of mixed kernel;
- academic interests.
The main advantages are:
- 32-bit fast kernel;
- no global kernel locks;
- full parallel threading model;
- easy API;
- integrated Virtual Filesystem support called StreamFS;
Toro is a kernel created in Pascal using FreePascal compiler. The project was started in the year 2003 by Matias E. Vara using a monolithic kernel.The whole kernel is included in a RTL compliant with FreePascal for i386 and AMD x86-64 processors. The user program is compiled within the kernel and is executed in kernel mode. The intrinsic OS design select strict model in data workflow and pipeline of execution in order to avoid concurrent execution on the same shared memory region. The kernel was optimized for Multicore system and that is the principal objective of the project ,fix the current problems of Modern O.S. in Multicore environment. The main features are:
- Supports Multithreading with SMP(Symmetric MultiProcessing).
- Simple interface with Lazarus IDE for programmers.
- Supports AMD x86-64 and Intel EMT64 architecture.
- Designed to optimize the use of AMD HyperTransport technology and Intel Quick Path Interconnect technology.
- NUMA Memory Model (Non Uniform Memory Access).
- Stack TCP-IP.
- Virtual Filesystem.
- Independent of architecture.
A realtime kernel for embedded development. Primarily developed for ARM devices. Written entirely in Pascal and inline assembler.
- Preemptive multitasking
- Synchronization primitives(Mutex, Critical section, spinlock, and signals)
- Threadsafe queue and delays
- Optional safety features: Deadlock detection, priority inheritance, etc
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Ultibo core is a kernel in an RTL first released in 2016, much more than just another OS example it is a complete platform for creating modern full featured embedded applications which run without any operating system. Written 100% in Free Pascal and initially targeting Raspberry Pi, the modular design allows including only the features required for any given project. Packaged in a simple installer download for Windows or as an install script for Linux customized versions of both Free Pascal and Lazarus IDE are included along with full source and a collection of examples to get started quickly.
- Support for all models of Raspberry Pi (A/B/A+/B+/2B/3B/3B+/Zero/ZeroW) plus QEMU ARM emulation
- Pre-emptive threading
- Full range of locking and synchronization primitives
- Multicore support on Raspberry Pi 2B, 3B and 3B+ with all cores sharing workload
- Thread priority, affinity and migration
- Complete IPv4 stack including TCP, UDP, ICMP and raw sockets as well as DNS and DHCP protocols
- USB support with drivers for Hub, Keyboard, Mouse, Storage and Network
- MMC/SD device support
- Full support for FAT12/16/32, NTFS and CDFS filesystems
- Interrupt and fast interrupt handling
- Hardware exception handling
- Complete RTL with strings, code pages, Unicode, classes, objects and exceptions
- Full Winsock 1.1 and Winsock 2 implementation
- Standard C library support including POSIX threads
- Prebuilt libraries for Freetype2, SQLite, Zlib, Libpng and more included
- Support for many common FPC packages
- Hardware accelerated OpenGL ES and OpenVG graphics and support for the official Pi camera
- Many included extras like HTTP, SMTP, NTP, SysLog, Telnet and Shell
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ELERA is 32 bit operating system that written free pascal / lazarus from stratch. Operating System is:
- Pre-emptive multitasking
- Vesa 2.0+ GUI interface (up to 1024 x 768 resolution support)
- PS/2 mouse, keyboard, pcnet32 network, floppy, ide disk hardware support
- FAT12, FAT16, FAT32 file system support
- ARP, UDP, IP socket layer