Commit Graph

23 Commits

Author SHA1 Message Date
Stephen Heumann
8e1db102eb Allow line continuations within // comments.
This is what the standards specify.
2022-12-04 23:16:06 -06:00
Stephen Heumann
2bf3862e5d Avoid generating invalid .sym files if header ends with a partial declaration.
The part of the declaration within the header could be ignored on subsequent compilations using the .sym file, which could lead to errors or misbehavior.

(This also applies to headers that end in the middle of a _Static_assert(...) or segment directive.)
2022-11-26 00:18:57 -06:00
Stephen Heumann
9cc72c8845 Support "other character" preprocessing tokens.
This implements the catch-all category for preprocessing tokens for "each non-white-space character that cannot be one of the above" (C17 section 6.4). These may appear in skipped code, or in macros or macro parameters if they are never expanded or are stringized during macro processing. The affected characters are $, @, `, and many extended characters.

It is still an error if these tokens are used in contexts where they remain present after preprocessing. If #pragma ignore bit 0 is clear, these characters are also reported as errors in skipped code or preprocessor constructs.
2022-11-08 18:58:50 -06:00
Stephen Heumann
65ec29ee3e Use 32-bit representation for line numbers.
C99 and later specify that line numbers set via #line can be up to 2147483647, so they need to be represented as (at least) a 32-bit value.
2022-10-22 21:46:12 -05:00
Stephen Heumann
760c932fea Initial implementation of _Pragma (C99).
This works for typical cases, but does not yet handle Unicode strings, very long strings, or certain escape sequences.
2022-10-22 17:08:54 -05:00
Stephen Heumann
b2edeb4ad1 Properly stringize tokens that start with a trigraph.
This did not work correctly before, because such tokens were recorded as starting with the third character of the trigraph.

Here is an example affected by this:

#define mkstr(a) # a
#include <stdio.h>
int main(void) {
        puts(mkstr(??!));
        puts(mkstr(??!??!));
        puts(mkstr('??<'));
        puts(mkstr(+??!));
        puts(mkstr(+??'));
}
2022-03-25 18:10:13 -05:00
Stephen Heumann
30fcc7227f Tweak comments in Scanner.asm.
There are no code changes.
2022-02-15 20:51:16 -06:00
Stephen Heumann
785a6997de Record source file changes within a function as part of debug info.
This affects functions whose body spans multiple files due to includes, or is treated as doing so due to #line directives. ORCA/C will now generate a COP 6 instruction to record each source file change, allowing debuggers to properly track the flow of execution across files.
2022-02-05 18:32:11 -06:00
Stephen Heumann
ad5063a9a3 Support hexadecimal floating-point constants. 2021-10-17 18:19:29 -05:00
Stephen Heumann
3c3697535e Move two functions out of the blank segment.
This makes slightly more room for variables.
2021-09-15 19:24:55 -05:00
Stephen Heumann
2e29390e8e Support 64-bit decimal constants in code. 2021-02-15 12:28:30 -06:00
Stephen Heumann
32614abfca Allow '/*' or '//' in character constants.
These should not start a comment.
2020-02-04 18:42:55 -06:00
Stephen Heumann
ffe6c4e924 Spellcheck comments throughout the code.
There are no non-comment changes.
2020-01-29 17:09:52 -06:00
Stephen Heumann
656868a095 Implement support for universal character names in identifiers. 2020-01-20 17:22:06 -06:00
Stephen Heumann
9036a98e1c Implement support for digraphs.
Specifically, the following six punctuator tokens are now supported:

<: :> <% %> %: %:%:

These behave the same as the existing tokens [, ], {, }, #, and ## (respectively), apart from their spelling.

This can be useful when the full ASCII character set cannot easily be displayed or input (e.g. on the IIgs text screen with certain language settings).
2020-01-04 21:49:50 -06:00
Stephen Heumann
69f086367c Adjust how messages from the printf/scanf format checker are displayed.
Mainly, this causes the messages from the format checker to be displayed after the relevant line is printed, along with any other error messages. The wording and formatting of some of the messages is also slightly adjusted, but there should be no substantive change in what is warned about.
2018-09-01 19:59:52 -05:00
Stephen Heumann
5b26b8cc5b Expand all tabs in assembly files to spaces.
This allows the code to be displayed properly on GitHub and in modern text editors, which typically do not support the irregularly-spaced tab stops used for ORCA/M code. It also avoids any possibility of problems building the code if the SysTabs file is missing or has been customized with non-standard tab stops.
2018-02-10 21:55:24 -06:00
Kelvin Sherlock
3c09d1c4ff add allowTokensAfterEndif setting for pragma ignore (from MPW ORCA/C IIgs) [WIP] 2017-10-28 20:19:00 -04:00
Stephen Heumann
ccd653ddb9 Move some more code out of the blank segment to make space for static data. 2017-10-21 20:36:21 -05:00
Stephen Heumann
4f736079f0 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.
This is what is required by the C standards.
2017-10-21 20:36:21 -05:00
Stephen Heumann
1994e7e353 Properly report dates in the year 2000 and beyond with the __DATE__ macro.
This should now work properly through the end of the year 2155, i.e. the limit of what the ReadTimeHex format can represent.
2017-10-21 20:36:21 -05:00
Stephen Heumann
46b6aa389f Change all text/source files to LF line endings. 2017-10-21 18:40:19 -05:00
mikew50
e72177985e ORCA/C 2.1.0 source from the Opus ][ CD 2017-10-01 17:47:47 -06:00