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Stephen Heumann 896c60d18c Determine the type to use for computing a >>= or <<= operation based only on the left operand.
Also, fix a case where an uninitialized value could be used, potentially resulting in errors not being reported (although I haven’t seen that in practice).

This fixes problems where >>= operations might not use an arithmetic shift in certain cases where they should, as in the below program:

#include <stdio.h>
int main (void)
{
    int i;
    unsigned u;
    long l;
    unsigned long ul;

    i = -1;
    u = 1;
    i >>= u;
    printf("%i\n", i); /* should be -1 */

    l = -1;
    ul = 3;
    l >>= ul;
    printf("%li\n", l); /* should be -1 */
}
2017-10-21 20:36:21 -05:00
obj ORCA/C 2.1.0 source from the Opus ][ CD 2017-10-01 17:47:47 -06:00
ORCACDefs Move ORCACDefs directory to root level. 2017-10-21 20:21:37 -05:00
Tests Fix test cases that used a non-brace-enclosed expression to initialize the first element of a union. 2017-10-21 20:36:20 -05:00
Asm.pas Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
backup Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
cc.notes Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
CC.pas Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
CC.rez Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
CC.rez2 Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
CCommon.asm Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
CCommon.macros Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
CCommon.pas Permit unions to be initialized by assignment from expressions of the appropriate union type. 2017-10-21 20:36:20 -05:00
CGC.asm Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
CGC.macros Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
CGC.pas Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
CGI.Comments Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
CGI.Debug Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
CGI.pas Change Byte -> UByte conversion to use a "Word -> UByte" conversion, rather than introducing a new "Byte -> UByte" conversion. 2017-10-21 20:36:20 -05:00
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 Generate better code when accessing structs and unions within other structures. 2017-10-21 20:36:20 -05:00
Exp.macros Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Expression.asm Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Expression.pas Determine the type to use for computing a >>= or <<= operation based only on the left operand. 2017-10-21 20:36:21 -05:00
Gen.pas Change Byte -> UByte conversion to use a "Word -> UByte" conversion, rather than introducing a new "Byte -> UByte" conversion. 2017-10-21 20:36:20 -05:00
Header2.pas Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Header.pas Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
LICENSE ORCA/C 2.1.0 source from the Opus ][ CD 2017-10-01 17:47:47 -06:00
linkit Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
linkit2 Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
make Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
make2 Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
MM.asm Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
MM.macros Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
MM.pas Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Native2.pas Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Native.asm Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Native.macros Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Native.pas Don't do an optimization that would move a store to a DP location above an indirect load using that DP location. 2017-10-21 20:36:20 -05:00
ObjOut2.asm Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
ObjOut2.pas Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
ObjOut.asm Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
ObjOut.macros Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
ObjOut.pas Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Parser.pas Allow 'extern' storage-class specifier in function definitions. 2017-10-21 20:36:21 -05:00
README.md Add instructions for converting line endings. 2017-10-21 20:09:08 -05:00
Scanner.asm If the day of the month is in the range 1-9, report it in __DATE__ with a leading space character rather than a leading 0. 2017-10-21 20:36:21 -05:00
Scanner.debug Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Scanner.macros Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Scanner.pas Don’t produce spurious error messages when #error is used with tokens other than a string constant. 2017-10-21 20:36:21 -05:00
smake Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Symbol.asm Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Symbol.macros Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Symbol.pas Properly support declarations with incomplete structure types that are completed later in the same scope. 2017-10-21 20:36:20 -05:00
Symbol.Print Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Table.asm Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Table.macros Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
Table.pas Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00

ORCA-C

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

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

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 lines to the .git/info/attributes file, creating it if necessary:
* filter=crtext
bin/Libraries/* -filter
bin/Languages/* -filter
  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.