Commit Graph

105 Commits

Author SHA1 Message Date
Bill Currie 28ce35f1c1 Make values independent objects.
values are now uniquely allocated (for the current object file). With
this, constants in dags will work.
2012-11-15 13:44:06 +09:00
Bill Currie 93b007b1f8 Take care of relocs when defining external defs.
For most of the cases, some relocs may have been lost, but they were
certainly lost for type encodings. Now that all seems to be fixed.
2012-11-12 16:14:09 +09:00
Bill Currie cc24e2e67e Initialize global string vars correctly.
Ouch, I'd fixed that for arrays, but not normal vars.
2012-11-09 12:23:04 +09:00
Bill Currie 9095e1eabc Rework build_switch to use initialize_def.
This required support for label reference expressions, whose purpose is to
represent the address of a label.
2012-11-09 12:22:34 +09:00
Bill Currie ec98e3e206 Mark alias def chains as a bug. 2012-05-03 13:27:30 +09:00
Bill Currie bc1b483525 Nuke the rcsid stuff.
It's pretty useless in git.
2012-04-22 10:56:32 +09:00
Bill Currie 2de7733b6a Fix initialized variable type handling.
Same problem as initialized constants :P
2011-03-30 21:21:38 +09:00
Bill Currie 8e18c76bde Make initialized variables defs rather than immediate constants. 2011-03-30 19:58:09 +09:00
Bill Currie 7dbd2ec172 Allow field aliasing.
Initializing a field variable to another field will set the new field to
point to the same location. No type checking is done.

eg:
.SEL thinkMethod = think;
2011-03-30 09:33:47 +09:00
Bill Currie 8d3508cf20 Allocate space for temp defs using size rather than type.
Statement operands throw away the high level type information, so store
type size in the operand and use this size for allocating space for temps
rather than using the low-level type.
2011-03-23 21:32:14 +09:00
Bill Currie d4be914019 Fix initialized vector variables.
The whole initialized variable system is wonky, but it will do for now.
2011-03-22 15:10:06 +09:00
Bill Currie 7dbd5f656c Fix traditional vector component access. 2011-03-22 13:05:42 +09:00
Bill Currie f1d9570dc8 Fix constant value type handling.
Rename immediate.[ch] to value.[ch] and clean up the mess.

Add convert_value() to convert the type of a value (only scalar types).
2011-03-22 12:24:39 +09:00
Bill Currie 0c0f4360da Make field defs "nosave".
The engine treats fielddefs with DEF_SAVEGLOBAL set as bogus.
2011-03-21 17:06:45 +09:00
Bill Currie 2464a89d37 Preserve relocs across def churning.
Freeing then re-allocating a def to change its storage from external is
really not the right way to do it, but for now this fixes the loss of the
relocs. With this, the menus seem to work :)
2011-03-09 10:52:29 +09:00
Bill Currie 7c770b75c5 Do not creat field defs for local storage.
This prevents field params and local vars from messing up the real field
defs.
2011-03-08 19:56:02 +09:00
Bill Currie 7649549de6 Handle external field declarations. 2011-03-07 17:23:52 +09:00
Bill Currie 49e446b637 Make field defs global.
It turns out that field defs need to be global after all, so use separate
field def tables in the linker.
2011-03-07 14:45:50 +09:00
Bill Currie 29cac0fe3a Optionally create *_[xyz] symbols for accessing vector components.
"vector-components" in code options controls this feature. The default is
off for advanced code and on for traditional code. Disabling
vector-components prevents the comonent names polluting the namespace and
reduces the number of globals needed for vector fields if the components
of that field are never used.
2011-03-07 10:21:40 +09:00
Bill Currie 8712d30d1a Make entity field defs static.
Entity field defs need to be static in order to avoid clashing with their
field variables.
2011-03-06 15:41:15 +09:00
Bill Currie fe3d228658 Maintain a symbol table for entity fields. 2011-03-06 15:38:19 +09:00
Bill Currie 7209c61912 Fix initializing local float variables with an integer constant.
Run the assignment expression through fold_constants to handle any
necessary conversions and error checking.
2011-03-05 17:23:58 +09:00
Bill Currie cfefd79e07 Fix the source of bogus string relocs.
Nested aggregate initializers were corrupting themselves.
2011-03-05 09:21:12 +09:00
Bill Currie c06dd776d2 Fix expression initializers for arrays and structs. 2011-03-02 22:28:17 +09:00
Bill Currie c10a551c84 Rename new_defspace() and defspace_new_loc(). 2011-02-24 13:07:36 +09:00
Bill Currie e68e6d0858 Create defs for entity fields in the entity space. 2011-02-22 15:43:15 +09:00
Bill Currie 7d1f2c4ef3 Fix field def allocation for non-function fields. 2011-02-22 10:43:35 +09:00
Bill Currie b7c6c4af5d Better variable naming in init_elements(). 2011-02-22 09:22:04 +09:00
Bill Currie 0f0ed3dae2 Allow null types in defs again.
However, only at the lowest level. This is needed for my type encoding.
2011-02-18 09:04:33 +09:00
Bill Currie 4e86b28b59 Use the def type rather than expression type to select the init method.
Local defs may be initialized with non-constant expressions, which
includes function calls. Both function calls and aggregate initializers
use block expressions.
2011-02-15 09:38:44 +09:00
Bill Currie 19f6faf0ad Fix aggregate initializers.
Initializing arrays and structs seems to be working.
2011-02-15 09:30:37 +09:00
Bill Currie f1fccb19dd Allow same-type re-declarations of uninitialized variables.
This is especially important for declaring variables that were previously
declared external.
2011-02-14 23:10:46 +09:00
Bill Currie 23b01be214 Handle invalid initializers gracefully. 2011-02-14 23:10:46 +09:00
Bill Currie 4c63a0bad6 Generate a warning when creating a var with no type.
This makes the internal error in new_def() non-functional, but the warning
will catch the bug and there's no harm in leaving the test in new_def().
2011-02-14 23:10:46 +09:00
Bill Currie 3e5989463f Update the def_tail when removing the last def from the space. 2011-02-14 23:10:45 +09:00
Bill Currie c336aaeb80 Handle incomplete types gracefully. 2011-02-13 19:26:20 +09:00
Bill Currie 8c01497936 Give __obj_exec_class a sterner beating.
When linking a def into a defspace, ensure it can be removed. This fixes
the missing __obj_exec_class def in qwaq.
2011-02-11 22:29:57 +09:00
Bill Currie 0efc759f2d Catch attempts to create a def with a null type. 2011-02-11 22:29:57 +09:00
Bill Currie c3a991e555 Support nil in initializers. 2011-02-10 14:51:52 +09:00
Bill Currie 01a7af17e5 Beat __obj_exec_class into submission. 2011-02-10 00:15:19 +09:00
Bill Currie afc6605739 Don't set the space for external defs. 2011-01-29 09:55:14 +09:00
Bill Currie f45919df09 Need alias defs after all. 2011-01-25 15:42:26 +09:00
Bill Currie 726f293d0d Allocate space for defs and handle basic initializations.
Block initializers (arrays and structs) are still broken.
2011-01-25 12:16:13 +09:00
Bill Currie 0624408317 Move the diagnostic functions into their own file. 2011-01-24 21:54:57 +09:00
Bill Currie afc5b2827d Simplify def handling, use far data.
Since there is now a proper symbol table, defs are now just references to
memory locations and the symbol table takes care of duplicates.

Also, start using far data for ObjQC structures.

The qfo functions have been stubbed out until I figure out what to do with
object files in the new scheme.
2011-01-24 15:41:43 +09:00
Bill Currie 4a24393d8d Temp expressions now use operands instead of defs. 2011-01-21 11:26:43 +09:00
Bill Currie ea3895805b Rewrite much to use symbols and symtabs. Gut emit.c. Massive breakage.
That which isn't rewritten is horribly broken. However, this does include a
nice mechanism for building QC structs for emitting data.

emit.c has been gutted in the spirit of "throw one away".

There is much work to be done to get even variables emitted, let alone
code. Things should be a little more fun from here on.
2011-01-17 22:34:41 +09:00
Bill Currie 85de101aa3 Break out the defspace code.
This also makes some improvements to the free block handling code.
2011-01-17 22:34:41 +09:00
Bill Currie 75ec6bf244 Clean out some unnecessary types from the progs engine and clean up the mess.
This is a nasty commit, sorry, but 99% of the commit is interdependent.
2011-01-10 12:25:31 +09:00
Bill Currie fac98536f0 make sure def->space points to the space the def's location is allocated from to ensure that freeing the location works properly (fixes the bogus address triggered by prozaccoop: thanks, phrosty) 2010-02-22 13:11:41 +00:00