Commit Graph

93 Commits

Author SHA1 Message Date
Rangi
c869edd1d2 Implement SIZEOF and STARTOF for section types (#1205) 2023-11-03 08:50:04 +01:00
Rangi
fa13611bbf Make comments more consistent
- Changes most `/* comments */` to `// comments`
- Changes `/**` block comments consistently to `/*`
- Adds consistent license comments to all files

Also renames `T_POP_SET` to `T_Z80_SET`
2022-08-30 07:51:32 +02:00
ISSOtm
f5ac268989 Fix unchecked realloc in makeUnknown 2022-06-12 16:36:35 +02:00
Eldred Habert
6842c831fd Allow binary AND to be sometimes constant (#976) 2022-02-05 14:17:57 -05:00
ISSOtm
eb5af70d79 Add unsigned right shift operator 2022-02-05 20:12:15 +01:00
Rangi
11a6a81169 Implement -Wtruncation=level (#931)
* Implement -Wtruncation=level

-Wtruncation=0 is the same as the current -Wno-truncation.
-Wtruncation=2 is the same as the current -Wtruncation.
-Wtruncation=1 is the new default; it's less strict, allowing
N-bit values to be between -2**N and 2**N (exclusive).

* Implement generic "parametrized warning" system

* Test more `Wtruncation` variants

Co-authored-by: ISSOtm <eldredhabert0@gmail.com>
2021-10-31 17:47:31 -04:00
Rangi
a67f5d6e01 SIZEOF("Section") and STARTOF("Section") can be known
Fixes #890
2021-06-27 21:03:06 +02:00
ISSOtm
8bbafb7200 Rename out_ functions in section.c to sect_
More consistent with convention used everywhere, and makes it easier to
know which file the functions come from.
2021-05-03 12:22:14 +02:00
Rangi
bba532193b Port some cleanup from PR #847
- Update some whitespace formatting
- Factor out some functions
- Free data after outputting to an object file
2021-04-28 11:58:56 -04:00
Rangi
459773b3f0 Update some whitespace after Hungarian prefixes were removed
Keep the parameter alignment and 100-char line limit
2021-04-19 16:47:39 -04:00
ISSOtm
6d0a3c75e9 Get rid of Hungarian notation for good
Bye bye it was not nice knowing ya
2021-04-19 22:12:10 +02:00
Rangi
52797b6f68 Implement SIZEOF("Section") and STARTOF("Section") (#766)
Updates the object file revision to 8

Fixes #765
2021-04-17 18:36:26 -04:00
ISSOtm
60019cf476 Fix a bunch of Clang warnings
As reported by #789
Should avoid relying on 32-bit int (for implicit conversions)
and account for more extreme uses of RGBDS.
2021-03-10 10:56:57 +01:00
Rangi
ac2cefdd87 Refactor some math functions into a shared file for rgbasm and rgblink
Fixes #769

Fixes #770
2021-03-02 11:40:03 +01:00
Rangi
5fd636ac4b Implement floored / and divisor-sign % operators (#745)
Fixes #703
2021-02-21 16:14:44 -05:00
Rangi
748e7dd4c7 Fix calculation of 2**30
In exponent(), 'base *= base;' should not run
when base is 65536, since it overflows an int32_t.

This also optimizes exponent() based on
gcc and clang -O3 test cases in godbolt.org.
2021-02-17 09:25:02 -05:00
ISSOtm
b3c0db218d Remove "EOF-newline" lexer hack
In preparation for an upcoming change
Makes for nicer error messages, complaining about EOF instead of newlines
The hack had to be kept for the lexer raw mode to avoid a bug;
see the relevant code comment for more info.
2021-02-11 12:48:37 +01:00
ISSOtm
a679e02246 Get rid of asm.h and localasm.h
No need to make them global
2021-01-22 13:34:16 +01:00
Rangi
895ec5564d Update mathematical functions (#675)
Document the existing `ROUND`, `CEIL`, and `FLOOR` functions
Also update the trig function docs for searchability

Implement `POW` and `LOG`
Addresses part of #675

Implement ** for integer exponents
** has higher precedence than -, like Python, so -3**4 == -(3**4) == 81
2021-01-02 01:39:20 +01:00
ISSOtm
4f842a1248 Create specialized symbol finder functions
The old "find symbol with auto scope" function is now three:
- One finds the exact name passed to it, skipping any checks
  This is useful e.g. if such checks were already performed.
- One checks that the name is not scoped, and calls the first.
  This is useful for names that cannot be scoped, such as checking for EQUS.
  Doing this instead of the third should improve performance somehwat, since
  this specific case is hit by the lexer each time an identifier is read.
- The last one checks if the name should be expanded (`.loc` → `Glob.loc`),
  and that the local part is not scoped. This is essentially the old function.
2020-11-21 01:06:17 +01:00
Eldred Habert
73396166aa Merge pull request #605 from NieDzejkob/invalid-labels
Don't consider difference of invalid labels constant
2020-10-13 10:42:05 +02:00
Jakub Kądziołka
4c5d5c7085 Don't consider difference of invalid labels constant
If a label is defined outside of a section, avoid trying to obtain its
value.
2020-10-12 23:03:14 +02:00
Jakub Kądziołka
dc62d60e9b reserveSpace: don't assume one doubling is enough 2020-10-12 11:57:03 +02:00
ISSOtm
5a65188ca9 Implement compact file stacks in object files
Gets rid of `open_memstream`, enabling Windows compatibility again
Also fixes #491 as a nice bonus!
2020-10-04 04:46:01 +02:00
ISSOtm
a1286e6f0e Make newlines explicit in error messages
In preparation for a change a PR is about to make
2020-09-27 10:54:06 +02:00
ISSOtm
304bb9f902 Remove most Hungarian notation in section module
Seriously, it sucks.
2020-09-06 20:43:13 +02:00
ISSOtm
762474d3ac Let RGBASM write JR offsets in floating sections
This requires some special-casing for `jr @` because the `jr` opcode has
already been emitted, but not the operand, so PC points to the middle.
Moved the RGBLINK test to RGBASM's folder, and created a new RGBLINK test.
2020-07-27 18:17:29 +02:00
James Larrowe
5c24de3dc4 Use inttypes for stdint types
This should help make RGBDS portable to systems with 16-bit integers,
like DOS.

For kicks, use the macros for 16-bit and 8-bit integers.

Fix other miscellaneous things, like #include ordering and other
printf-format related things.

Reduce repitition in math.c while I'm there.
2020-05-07 11:10:20 -04:00
ISSOtm
f9f27d6f5a Clean up symbol system
Get rid of Hungarian notation
Improve encapsulation (the rest of the world should not touch PC directly)
2020-04-09 10:42:37 +02:00
ISSOtm
9f82fa4cf7 Fix BANK(@) outside sections causing crashes 2020-04-07 15:51:17 +02:00
ISSOtm
84cd9f2db9 Fix segfaults when using PC outside a section 2020-03-27 12:30:09 +01:00
Eldred Habert
fe824e0068 Merge pull request #490 from ISSOtm/const
Implement `ISCONST`, reporting compile-time constness
2020-03-21 23:20:01 +01:00
ISSOtm
136446fccb Improve checking of RST and LDH values at assembly time 2020-03-15 15:23:39 +01:00
ISSOtm
8fcdcb1731 Implement ISCONST, reporting compile-time constness 2020-03-11 02:15:31 +01:00
ISSOtm
361326e06c Allow inlining of two simple RPN functions 2020-03-07 18:18:57 +01:00
ISSOtm
48ad3973a9 Tell the user about "label"s instead of "relocatable"s
That's the common term, and even the manual uses it.
2020-03-07 18:04:13 +01:00
ISSOtm
f6f25296a0 Fix passing constant label to BANK() causing an error 2020-03-07 18:02:06 +01:00
ISSOtm
cfe21876e5 Make writing patches not affect the expression
This also removes one int member from the struct that shouldn't be there
2020-02-23 22:29:01 +01:00
ISSOtm
f01a227470 Fix non-const labels with callbacks having incorrect values when diffed
Basically, this broke PC, which is currently the only label-typed symbol
with a callback.
2020-02-13 20:16:59 +01:00
ISSOtm
d0ec35628f Split section management into its own file 2020-02-10 03:34:58 +01:00
ISSOtm
ab1eb146c9 Print special message when PC is not constant 2020-02-10 02:51:48 +01:00
ISSOtm
63054ae0fd Make more functions ignore the RPN buffer when constant 2020-02-10 02:51:48 +01:00
ISSOtm
155040240d Improve error message when a symbol's value is not constant 2020-02-10 02:51:48 +01:00
ISSOtm
d466cab1e8 Init RPN expressions created by binary operators 2020-02-10 02:51:48 +01:00
ISSOtm
5014f55c48 Treat PC as a symbol as well 2020-02-10 02:51:48 +01:00
ISSOtm
1d78cd0f03 Axe the constexpr expression evaluator
This avoids redundancy between them (and also having to port fixes and features)
The error messages have been preserved through a string reporting mechanism
2020-02-10 02:51:48 +01:00
ISSOtm
52d62c6b21 Handle subtractions between labels 2020-02-10 02:47:50 +01:00
ISSOtm
b4a73f33ce Avoid undefined behavior when shifting in RPN math 2020-02-10 02:47:50 +01:00
ISSOtm
f9c25608e9 Ignore RPN strings when their value is known 2020-02-10 02:47:50 +01:00
ISSOtm
9fb9e63554 Reserve space for RPN expressions in a single call
This should mean less overhead with some commands
2020-02-10 02:47:12 +01:00