gbdev/rgbds
1
0
Fork 0
mirror of https://github.com/gbdev/rgbds.git synced 2025-11-22 03:02:06 +00:00
Code Issues Packages Projects Releases Wiki Activity
3,243 Commits 3 Branches 49 Tags
2519d1e698b4dbe44ad1f149c89c299b02ba75a1
Commit Graph

2308 Commits

Author SHA1 Message Date
Rangi
ca36422ac9 Parse 'ld hl, sp - <e8>' correctly 
Fixes #864
 2021-05-01 11:08:01 +02:00
Rangi
8e4ba8d2e4 Allow REDEF for EQU constants 
Fixes #853
 2021-04-29 12:24:07 +02:00
Rangi
ee67f1039c Fix REDEF EQUS behavior 
Redefining an EQUS constant will now update its filename,
like redefining a SET/= constant.

Attempting to redefine as EQUS a non-EQUS constant will
print an appropriate error message.

This also standardizes on `sym` versus `symbol` as a
variable name (which pairs with `symName`).
 2021-04-28 12:11:26 -04:00
Rangi
d37aa93a7d Port some cleanup from the WIP 'strings' branch 
This is mostly variable renaming
 2021-04-28 11:58:56 -04:00
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
GreenAndEievui
b4814b06b9 Updated RGBFIX to report when non-zero bytes are overwritten 
Also updated many .err files with the new warning.
 2021-04-28 11:57:43 -04:00
Rangi
3fdf01c0f5 Resolve some TODO comments 
- `out_PushSection` should not set `currentSection` to NULL because
  PUSHS, PUSHC, and PUSHO consistently keep the current section,
  charmap, and options, even though the stack has been pushed.

- `Callback__FILE__` does not need to assert that `fileName` is not
  empty because `__FILE__`'s value is quoted, and can safely be empty.

- `YY_FATAL_ERROR` and `YYLMAX` are not needed since the lexer is
  not generated with flex.
 2021-04-26 15:52:30 -04:00
Rangi
43cf20b155 Support Mac OS classic CR line endings in linkerscripts 
This also refactors `readChar(file)` to `nextChar()` to be
more like the rgbasm lexer.
 2021-04-26 12:05:36 -04:00
Rangi
e27a6d53a0 Support character escapes in linkerscript strings 
This allows linkerscripts to refer to section names even if
they contain special characters: '\r' '\n' '\t' '"' '\\'.
 2021-04-26 12:05:36 -04:00
ISSOtm
dd8f396227 Fix compiler warnings 
As reported in #789
 2021-04-25 20:40:11 +02:00
ISSOtm
b60853ea21 Fix RGBFIX option parsing on platforms with unsigned char 
Such as Termux, once again.
 2021-04-25 11:05:34 +02:00
Rangi
e050803ed1 Use size_t for measuring nested depths 
Multiple functions involve tracking the current depth
of a nested structure (symbol expansions, interpolations,
REPT/FOR blocks, parentheses).
 2021-04-23 14:28:10 +02:00
Rangi
27f38770d4 Parentheses in macro args prevent commas from starting new arguments 
This is similar to C's behavior, and convenient for passing
function calls as single values, like `MUL(3.0, 4.0)` or
`STRSUB("str", 2, 1)`.

Fixes #704
 2021-04-23 14:28:10 +02:00
ISSOtm
db1f77f90b Correct "| operator" line not including the pipe 2021-04-23 14:24:53 +02:00
Rangi
4d21588eb2 Make invalid UTF-8 characters in strings non-fatal 
STRLEN and STRSUB report the erroneous bytes

Fixes #848
 2021-04-22 09:59:02 +02:00
Rangi
e596dbfc80 Make failed macro arg expansions non-fatal 
Expanding empty strings is valid but pointless;
macro args already skipped doing so, now other
`beginExpansion` calls do too.

This also fixes failed interpolations (which were
already non-fatal) to continue reading characters,
not evaluate to their initial '{' character.
 2021-04-22 09:59:02 +02:00
Rangi
267e4bc25c rgbds.7(7) shows an example of piping rgbasm to rgblink to rgbfix 
This uses one line instead of three
 2021-04-20 22:06:02 -04:00
Rangi
c3e27217dd More specific "Symbol name too long" error messages 
Identifiers, {interpolations} and \<macroArgs> are distinct
 2021-04-20 17:14:21 +02:00
Rangi
fe3521c7a4 Switch from parentheses to angle brackets 
`\(` is more likely to be a valid escape sequence in the
future (as is `\[`) and `\{` is already taken.
 2021-04-20 17:14:21 +02:00
Rangi
7a314e7aff Support numeric symbol names in \(parentheses) 
For example, \(_NARG) will get the last argument
 2021-04-20 17:14:21 +02:00
Rangi
637bbbdf43 Support multi-digit macro arguments in parentheses 
This allows access to arguments past \9 without using 'shift'
 2021-04-20 17:14:21 +02:00
Rangi
8230e8165c Eliminate isAtEOF by changing yylex control flow 
`yylex` calls `yywrap` at the beginning of the next call, after it
has set `lexerState->lastToken` to `T_EOB`.
 2021-04-20 17:10:08 +02:00
Rangi
a727a0f81f Capture termination status is equivalent to not having reached EOF 
This avoids the need for a separate `terminated` flag
 2021-04-20 17:10:08 +02:00
Rangi
7a587eb7d6 Use midrule action values for captures' terminated status 
Bison 3.1 introduces "typed midrule values", which would write
`<captureTerminated>{ ... }` and `$$` instead of `{ ... }` and
`$<captureTerminated>[1-9]`, but rgbds supports 3.0 or even lower.
 2021-04-20 17:10:08 +02:00
Rangi
7ac8bd6e24 Return a marker token at the end of any buffer 
Removes the lexer hack mentioned in #778
 2021-04-20 17:10:08 +02:00
Rangi
be2572edca Track nested interpolation depth even outside string literals 
Fixes #837
 2021-04-20 09:37:29 -04:00
Rangi
cf2bbe6435 Position -1 is the last character of a string 
Position 0 is invalid, which matches with STRIN/STRRIN
returning 0 on failure.
 2021-04-20 14:27:59 +02:00
Rangi
dc5b7802c8 Make the len parameter optional in STRSUB(str, pos, len) 
An unspecified length will continue to the end of the string.
 2021-04-20 14:27:59 +02:00
Rangi
b1e6c73197 STRSUB and CHARSUB allow zero or negative positions 
These are offsets from the end of the string, as if the
STRLEN or CHARLEN respectively were added to the position.

Fixes #812
 2021-04-20 14:27:59 +02:00
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
Rangi
5108c5643c Let charmap_ConvertNext advance its output pointer 2021-04-17 18:18:34 -04:00
Rangi
2005ed1df9 Implement CHARLEN and CHARSUB 
Fixes #786
 2021-04-17 18:18:34 -04:00
Rangi
d43408f4f3 Allow OPT to modify -W 
Warning flags are processed individually;
PUSHO and POPO (re)store all the warning states.
 2021-04-18 00:11:18 +02:00
Rangi
2c30ab8731 Allow OPT to modify -L 
-L is a Boolean flag option, so you specify 'OPT L' or 'OPT !L'.
 2021-04-18 00:11:18 +02:00
Rangi
9923fa3eee Fix expansions that start from the end of another expansion (#839) 
Do not free an expansion until its offset is *past* its size.
This means potentially freeing a nested stack of expansions
all at once.

Fixes #696
 2021-04-17 13:14:40 -04:00
Rangi
750e93be3d Further simplify formatting code 
- Remove redundant length checks before `memcpy`
- Coerce `sign` and `prefix` to boolean for `numLen`
 2021-04-17 01:11:11 -04:00
Rangi
ee5da4468d Fix interpolation/STRFMT overflow issues (#838) 
Widths and fractional widths greater than 255 would overflow a
uint8_t and wrap around to smaller values.

Total formatted lengths greater than the avilable buffer size
would overflow it and potentially corrupt memory.

Fixes #830
Closes #831
 2021-04-17 00:52:55 -04:00
Rangi
503c3b5364 Revert "Fix interpolation/STRFMT overflow issues" 
This reverts commit 992be3fd9b.
 2021-04-16 22:19:37 -04:00
Rangi
992be3fd9b Fix interpolation/STRFMT overflow issues 
Widths and fractional widths greater than 255 would overflow a
uint8_t and wrap around to smaller values.

Total formatted lengths greater than the avilable buffer size
would overflow it and potentially corrupt memory.

Fixes #830
Closes #831
 2021-04-16 22:00:17 -04:00
Rangi
c755fa3469 readIdentifier does not process characters that get truncated 
Previously a '.' could be past the truncation limit but still
cause the identifier to be marked as local, violating an
assertion in `sym_AddLocalLabel`.

Fixes #832
 2021-04-16 21:15:01 -04:00
Rangi
e78a1d5bfd readInterpolation is limited by nMaxRecursionDepth 
Fixes #837
 2021-04-16 16:10:46 -04:00
Rangi
d2f6def2eb Remove unused function hash_ReplaceElement 2021-04-16 12:36:45 -04:00
Jakub Kądziołka
215e26b478 charmap: Store hashmap nodes in charmap stack 
This helps update all the pointers during reallocation.
 2021-04-16 16:00:26 +02:00
Jakub Kądziołka
8885f7bcf6 hash_AddElement: return the new node 2021-04-16 16:00:26 +02:00
Jakub Kądziołka
5334fc334e Don't report hashmap collisions 
This doesn't seem to be very useful, and keeping this "feature" is
difficult.
 2021-04-16 16:00:26 +02:00
Jakub Kądziołka
f97663aa37 hashmap: add hash_GetNode 2021-04-16 16:00:26 +02:00
Rangi
5c852c7651 Store the nested expansions starting from the deepest one (#829) 
This shortens the lexer by 100 lines and simplifies
access to expansion contents, since it usually needs the
deepest one, not the top-level one.

Fixes #813
 2021-04-16 09:54:13 -04:00
Rangi
6be3584467 LexerState's 'size' and 'offset' for mmapped files are unsigned 
These were using signed 'off_t' because that is the type of
'st_size' from 'stat()', but neither one can be negative.
 2021-04-16 10:23:37 +02:00