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Stephen Heumann 4ad7a65de6 Process floating-point values within the compiler using the extended type.
This means that floating-point constants can now have the range and precision of the extended type (aka long double), and floating-point constant expressions evaluated within the compiler also have that same range and precision (matching expressions evaluated at run time). This new behavior is intended to match the behavior specified in the C99 and later standards for FLT_EVAL_METHOD 2.

This fixes the previous problem where long double constants and constant expressions of type long double were not represented and evaluated with the full range and precision that they should be. It also gives extra range and precision to constants and constant expressions of type double or float. This may have pluses and minuses, but at any rate it is consistent with the existing behavior for expressions evaluated at run time, and with one of the possible models of floating point evaluation specified in the C standards.
2021-03-04 23:58:08 -06:00
obj ORCA/C 2.1.0 source from the Opus ][ CD 2017-10-01 17:47:47 -06:00
ORCACDefs Merge branch 'master' into longlong 2021-02-17 15:38:06 -06:00
Tests Fix a buggy test case. 2021-03-01 17:52:59 -06:00
Asm.pas Allow the WDM instruction to be used in the mini-assembler. 2020-01-11 21:58:21 -06:00
backup Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
C.Update.ReadMe Update installation instructions. 2021-02-27 19:09:21 -06:00
cc.notes Support the predefined identifier __func__ (from C99). 2021-03-02 22:28:28 -06:00
CC.pas Use centrally-defined token sets to recognize the beginning of declarations. 2020-01-18 15:21:27 -06:00
CC.rez Update ORCA/C version number to 2.2.0 B4. 2020-02-05 18:24:10 -06:00
CC.rez2 Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
CCommon.asm Move some code from the blank segment to named load segments. 2017-10-21 20:36:21 -05:00
CCommon.macros Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
CCommon.pas Process floating-point values within the compiler using the extended type. 2021-03-04 23:58:08 -06:00
CGC.asm Process floating-point values within the compiler using the extended type. 2021-03-04 23:58:08 -06:00
CGC.macros Process floating-point values within the compiler using the extended type. 2021-03-04 23:58:08 -06:00
CGC.pas Process floating-point values within the compiler using the extended type. 2021-03-04 23:58:08 -06:00
CGI.Comments Report errors in a few cases where the codegen finds unexpected types. 2021-02-13 18:46:00 -06:00
CGI.Debug Implement 64-bit division and remainder, signed and unsigned. 2021-02-05 12:42:48 -06:00
CGI.pas Process floating-point values within the compiler using the extended type. 2021-03-04 23:58:08 -06:00
Charset.pas Implement support for universal character names in identifiers. 2020-01-20 17:22:06 -06:00
count Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
DAG2.pas Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
DAG.pas Process floating-point values within the compiler using the extended type. 2021-03-04 23:58:08 -06:00
Debugger.md Update the debugging format for long long values. 2021-01-31 20:26:51 -06:00
Exp.macros Evaluate arithmetic and shifts in long long constant expressions. 2021-02-14 20:39:35 -06:00
Expression.asm Evaluate 64-bit comparisons in constant expressions. 2021-02-16 23:11:41 -06:00
Expression.pas Process floating-point values within the compiler using the extended type. 2021-03-04 23:58:08 -06:00
Gen.pas Process floating-point values within the compiler using the extended type. 2021-03-04 23:58:08 -06:00
Header2.pas Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Header.pas Process floating-point values within the compiler using the extended type. 2021-03-04 23:58:08 -06:00
LICENSE ORCA/C 2.1.0 source from the Opus ][ CD 2017-10-01 17:47:47 -06:00
linkit Add initial support for universal character names. 2020-01-19 23:59:54 -06:00
linkit2 Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
make Add initial support for universal character names. 2020-01-19 23:59:54 -06:00
make2 Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
MM.asm Move some more code out of the blank segment to make space for static data. 2017-10-21 20:36:21 -05:00
MM.macros Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
MM.pas Move some more code out of the blank segment to make space for static data. 2017-10-21 20:36:21 -05:00
Native2.pas Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Native.asm Move some more code out of the blank segment to make space for static data. 2017-10-21 20:36:21 -05:00
Native.macros Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Native.pas Recognize more indirect long instructions in the native code optimizer. 2021-03-02 19:19:00 -06:00
ObjOut2.asm Expand all tabs in assembly files to spaces. 2018-02-10 21:55:24 -06:00
ObjOut2.pas Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
ObjOut.asm Expand all tabs in assembly files to spaces. 2018-02-10 21:55:24 -06:00
ObjOut.macros Expand the size of the object buffer from 64K to 128K, and use 32-bit values to track related sizes. 2017-10-21 20:36:21 -05:00
ObjOut.pas Move some more code out of the blank segment to make space for static data. 2017-10-21 20:36:21 -05:00
Parser.pas Support the predefined identifier __func__ (from C99). 2021-03-02 22:28:28 -06:00
Printf.pas Update printf/scanf format checker to match recent library changes. 2021-02-14 17:45:39 -06:00
README.md Add link to binary downloads in the readme shown on GitHub. 2017-10-24 21:10:11 -05:00
Scanner.asm Support 64-bit decimal constants in code. 2021-02-15 12:28:30 -06:00
Scanner.debug Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Scanner.macros Support 64-bit decimal constants in code. 2021-02-15 12:28:30 -06:00
Scanner.pas Process floating-point values within the compiler using the extended type. 2021-03-04 23:58:08 -06:00
settypes Add settypes script for setting file types, and update README to refer to it. 2017-10-21 21:17:58 -05:00
smake Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Symbol.asm Move some code from the blank segment to named load segments. 2017-10-21 20:36:21 -05:00
Symbol.macros Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Symbol.pas Support the predefined identifier __func__ (from C99). 2021-03-02 22:28:28 -06:00
Symbol.Print Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Table.asm Process floating-point values within the compiler using the extended type. 2021-03-04 23:58:08 -06:00
Table.macros Recognize the new keywords from C99 and C11 as such. 2020-01-03 22:48:53 -06:00
Table.pas Spellcheck comments throughout the code. 2020-01-29 17:09:52 -06:00

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.