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ORCACDefs Add EACCES as another name for EACCESS in <errno.h>. Sep 10, 2018
Tests Update test to reflect that operands of % may be negative. Sep 15, 2018
obj ORCA/C 2.1.0 source from the Opus ][ CD Oct 1, 2017
Asm.pas Move some code from the blank segment to named load segments. Oct 22, 2017
C.Update.ReadMe Update documentation to cover format checking and other recent changes. Sep 3, 2018
CC.pas Allow declarations in first clause of for loop (C99). Apr 1, 2018
CC.rez Update ORCA/C version number to 2.2.0 B3. Sep 15, 2018
CC.rez2 Change all text/source files to LF line endings. Oct 21, 2017
CCommon.asm Move some code from the blank segment to named load segments. Oct 22, 2017
CCommon.macros Change all text/source files to LF line endings. Oct 21, 2017
CCommon.pas Update ORCA/C version number to 2.2.0 B3. Sep 15, 2018
CGC.asm Expand all tabs in assembly files to spaces. Feb 11, 2018
CGC.macros Change all text/source files to LF line endings. Oct 21, 2017
CGC.pas Move some more code out of the blank segment to make space for static… Oct 22, 2017
CGI.Comments Make % operator give proper remainders even if one or both operands a… Sep 10, 2018
CGI.Debug Change all text/source files to LF line endings. Oct 21, 2017
CGI.pas Don't allocate stack space for varargs stack repair unless it's needed. Jan 14, 2018
DAG.pas Ensure % with negative operands is not mis-optimized in intermediate … Sep 15, 2018
DAG2.pas Change all text/source files to LF line endings. Oct 21, 2017
Debugger.md merge in updates from the ORCA Debugger disk. Mar 25, 2018
Exp.macros Change all text/source files to LF line endings. Oct 21, 2017
Expression.asm Move some code from the blank segment to named load segments. Oct 22, 2017
Expression.pas Make % operator give proper remainders even if one or both operands a… Sep 10, 2018
Gen.pas Fix bug where the condition check of the ?: operator may be mis-evalu… Sep 14, 2018
Header.pas Bump sym file version and add a couple sanity checks. Sep 15, 2018
Header2.pas Change all text/source files to LF line endings. Oct 21, 2017
LICENSE ORCA/C 2.1.0 source from the Opus ][ CD Oct 1, 2017
MM.asm Move some more code out of the blank segment to make space for static… Oct 22, 2017
MM.macros Change all text/source files to LF line endings. Oct 21, 2017
MM.pas Move some more code out of the blank segment to make space for static… Oct 22, 2017
Native.asm Move some more code out of the blank segment to make space for static… Oct 22, 2017
Native.macros Change all text/source files to LF line endings. Oct 21, 2017
Native.pas Disable a native-code optimization that was generating bad code for %. Sep 11, 2018
Native2.pas Change all text/source files to LF line endings. Oct 21, 2017
ObjOut.asm Expand all tabs in assembly files to spaces. Feb 11, 2018
ObjOut.macros Expand the size of the object buffer from 64K to 128K, and use 32-bit… Oct 22, 2017
ObjOut.pas Move some more code out of the blank segment to make space for static… Oct 22, 2017
ObjOut2.asm Expand all tabs in assembly files to spaces. Feb 11, 2018
ObjOut2.pas Change all text/source files to LF line endings. Oct 21, 2017
Parser.pas Fix bug that could cause generation of invalid sym files. Sep 15, 2018
Printf.pas Small format checker adjustments. Sep 2, 2018
README.md Add link to binary downloads in the readme shown on GitHub. Oct 25, 2017
Scanner.asm Adjust how messages from the printf/scanf format checker are displayed. Sep 2, 2018
Scanner.debug Change all text/source files to LF line endings. Oct 21, 2017
Scanner.macros Change all text/source files to LF line endings. Oct 21, 2017
Scanner.pas Fix for including system headers via macros. Sep 14, 2018
Symbol.Print Change all text/source files to LF line endings. Oct 21, 2017
Symbol.asm Move some code from the blank segment to named load segments. Oct 22, 2017
Symbol.macros Change all text/source files to LF line endings. Oct 21, 2017
Symbol.pas Correctly handle tentative struct/union and array definitions that ar… Mar 7, 2018
Table.asm Expand all tabs in assembly files to spaces. Feb 11, 2018
Table.macros Change all text/source files to LF line endings. Oct 21, 2017
Table.pas Change all text/source files to LF line endings. Oct 21, 2017
backup Change all text/source files to LF line endings. Oct 21, 2017
cc.notes Update release notes. Sep 15, 2018
count Change all text/source files to LF line endings. Oct 21, 2017
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README.md

ORCA-C

Apple IIGS ORCA/C Compiler, an ANSI C compiler for the 65816 with libraries for the Apple IIGS

Binary downloads for the latest ORCA/C release are on the releases page.

If you would like to make changes to this compiler and distribute them to others, feel free to submit them here. If the changes apply to compilation on and for an Apple IIGS, they will generally be approved for distribution on the master branch unless the changes deviate significantly from the ANSI C standard. For changes that deviate form ANSI C or changes that retarget the compiler to run on a different platform or generate code for a different platform, the project will either be forked or a new repository will be created, as appropriate.

The general conditions that must be met before a change is released on master are:

  1. The modified compiler must compile under the currently released version of ORCA/M and ORCA/Pascal.

  2. All samples from the original ORCA/C distribution must compile and execute under the modified compiler, or the sample must be updated, too.

  3. The compiler must pass the ORCA/C tset suite, or the test suite must be suitably modified, too.

  4. The compiler must work with the current ORCA/C libraries, or the libraries must be modified, too.

Contact support@byteworks.us if you need contributor access.

A complete distribution of the ORCA languages, including installers and documentation, is available from the Juiced GS store at https://juiced.gs/store/category/software/. It is distributed as part of the Opus ][ package.

Line Endings and File Types

The text and source files in this repository originally used CR line endings, as usual for Apple II text files, but they have been converted to use LF line endings because that is the format expected by Git. If you wish to move them to a real or emulated Apple II and build them there, you will need to convert them back to CR line endings.

If you wish, you can configure Git to perform line ending conversions as files are checked in and out of the Git repository. With this configuration, the files in your local working copy will contain CR line endings suitable for use on an Apple II. To set this up, perform the following steps in your local copy of the Git repository (these should be done when your working copy has no uncommitted changes):

  1. Add the following lines at the end of the .git/config file:
[filter "crtext"]
	clean = LC_CTYPE=C tr \\\\r \\\\n
	smudge = LC_CTYPE=C tr \\\\n \\\\r
  1. Add the following line to the .git/info/attributes file, creating it if necessary:
* filter=crtext
  1. Run the following commands to convert the existing files in your working copy:
rm .git/index
git checkout HEAD -- .

Alternatively, you can keep the LF line endings in your working copy of the Git repository, but convert them when you copy the files to an Apple II. There are various tools to do this. One option is udl, which is available both as a IIGS shell utility and as C code that can be built and used on modern systems.

In addition to converting the line endings, you will also have to set the files to the appropriate file types before building ORCA/C on a IIGS. The included settypes script (for use under the ORCA shell) does this for the sources to the ORCA/C compiler itself, although it does not currently cover the test cases and headers.