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1863 commits

Author SHA1 Message Date
Bill Currie
87ce9f5333 Get basic function creation working. 
Even more FIXMEs, but the pascal parser can now create functions. The
function records even get emitted.
 2011-01-18 12:47:13 +09:00
Bill Currie
8fb1b49a9d Add support for function symbols. 2011-01-18 10:46:42 +09:00
Bill Currie
b186173d18 Fix a segfault in structure finalization. 2011-01-18 08:59:44 +09:00
Bill Currie
21c0c960ae Initialize data before types. 
This is needed for string data. It might be better to init saved strings
separately, but this works for now.
 2011-01-18 08:58:43 +09:00
Bill Currie
3fe7a7250a Handle unnamed structures in make_structure. 
Symbols may not have null names.
 2011-01-18 08:56:47 +09:00
Bill Currie
b76a5c5284 Add my QuakePascal test program. 
Trivial as it is...
 2011-01-17 22:44:58 +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
d3a98af783 Make internal_error globally available. 2011-01-17 22:34:41 +09:00
Bill Currie
537b930ba6 Add new_symbol_type to ease creation of typed symbols. 
This is inteded for code generation functions that need to create
variables and structures.
 2011-01-17 12:04:41 +09:00
Bill Currie
ffea505678 Cleanup QC's constant handling based on QP. 2011-01-14 12:10:28 +09:00
Bill Currie
c38ea0b1bc Correct the spelling of "nil". 2011-01-14 12:07:40 +09:00
Bill Currie
fb8b3d1211 Rework the lexer and parser to use symbols instead of defs. 
Currently parses the test program just fine, but code generation is very
very broken.
 2011-01-13 14:58:16 +09:00
Bill Currie
8f71986306 Add symbol expressions (like def expressions). 
They will eventually replace def expressions. Currently quite broken.
 2011-01-13 14:54:24 +09:00
Bill Currie
008f4e1929 Don't return .return in advanced mode. 2011-01-13 14:50:25 +09:00
Bill Currie
5b8725ca66 Rewrite the symbol (table) management in light of actual usage. 2011-01-13 14:48:38 +09:00
Bill Currie
ac14db7b1b Create a function to ease param list building. 
This is especially useful for QuakePascal, but it will mean I'll be able to
get rid of the parameter reversals in Ruamoko later on.
 2011-01-13 14:45:53 +09:00
Bill Currie
258c896e4d Create a function to build if/else blocks. 2011-01-13 14:33:16 +09:00
Bill Currie
638f4445cc More return code cleanup. 
Don't use the true void return in traditional mode.
Prefer the true void return over "done" at the end of functions.
Don't emit the above if the last emitted statement is a return and there is
no label at the end of the function.
 2011-01-13 00:46:46 +09:00
Bill Currie
3c9991364b Add a "void return" instruction. 
I got fed up with always having to explicty return something.
 2011-01-13 00:29:56 +09:00
Bill Currie
9ce9b70484 Add variadic functions. 
Already extending QuakePascal, and many basics aren't there yet :P
 2011-01-12 23:39:59 +09:00
Bill Currie
02b3dde83b Make QuakePascal programs runnable. 
Generate a mini-main function (".main", to avoid namespace pollution) that
calls the function named by "program", and make qwaq check for ".main" as
well as "main". If both are present, ".main" will take priority.
 2011-01-12 23:39:22 +09:00
Bill Currie
332b7da127 Minor header cleanup. 2011-01-12 23:34:15 +09:00
Bill Currie
96ba4605fa Fix the micro-optimization that avoided emitting x = x 
The check was broken by alias defs. If a def is aliased, the alias must be
checked.
 2011-01-12 23:33:51 +09:00
Bill Currie
c787923c99 Forgot to remove that print_expr. 2011-01-11 12:11:54 +09:00
Bill Currie
08bf7e24de Produce nicer code for post-op. 
The temp notice is still there for arrays (that's caused by issues in
constfold.c, not easily fixilbe), but it's harmless and correct (and nice)
code is much more important.
 2011-01-11 12:07:48 +09:00
Bill Currie
ad787ae98a Set the expression type to the correct value for addresses. 2011-01-11 12:06:40 +09:00
Bill Currie
21d7c78eb7 Allow deep copying of expression trees. 
Certain expression types (eg labels) are created fresh.
 2011-01-11 12:05:29 +09:00
Bill Currie
c73ac30e3f Turns out decrementing the users was very very bad. 2011-01-11 10:56:36 +09:00
Bill Currie
4af5dad424 More math identities. 
I forgot about 0 for multiplication and division. Detects division by zero.
 2011-01-11 08:49:43 +09:00
Bill Currie
5b43fc1de3 Improve interaction between temps and const_folding. 
Unfortunately, this seems to overdo the decrementing, so it could be
dangerous, but the ruamoko directory builds properly.
 2011-01-11 08:47:52 +09:00
Bill Currie
abe471110c Make inc/dec_users return the the expression. 
Just for convenience.
 2011-01-11 08:44:43 +09:00
Bill Currie
18ae178eaf Make new_vector_expr and new_quaternion_expr const-correct. 2011-01-11 08:43:34 +09:00
Bill Currie
4da2657bfe Fix most of the notice spam (hacky). 
The implementation and declaration of OP_DONE disagree (not sure what to do
about it yet), so give it special treatment when emitting.
 2011-01-11 08:07:04 +09:00
Bill Currie
ded741430b Add some missing static declarations. 2011-01-10 13:23:39 +09:00
Bill Currie
5f70e27613 Quaternions use quaternion_val, not vector_val :P 2011-01-10 13:23:12 +09:00
Bill Currie
cd38bd71fa Swap the order of scale and base for calculating the array index. 
fold_constants doesn't like dags very much, but it can do the right thing
if the expressions are in the right order. This is merely a workaround
until I get to work on the code generator itself.
 2011-01-10 12:26:11 +09:00
Bill Currie
5864c198cc Property list tests are working. 2011-01-10 12:26:11 +09:00
Bill Currie
d327c860cb Get messages working again. 2011-01-10 12:26:11 +09:00
Bill Currie
cb0bc7229a Resurect the debugging messages in rua_obj.c 
Yet another debug flag: SYS_RUA_OBJ
 2011-01-10 12:26:10 +09:00
Bill Currie
aac8185e4e Print some addresses in hex. 2011-01-10 12:25:31 +09:00
Bill Currie
6ebee4ad0e Get the type of Method right. 
It's a direct structure rather than a pointer.
 2011-01-10 12:25:31 +09:00
Bill Currie
ba27db6b93 Use some math identities to eliminate operations on non-constants. 2011-01-10 12:25:31 +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
c69ac1f56f Don't segfault when build_builtin_function detects an error. 2011-01-10 12:25:31 +09:00
Bill Currie
806d9110a2 Support both (* *) and // style comments. 2011-01-10 12:25:31 +09:00
Bill Currie
a17e73c863 Generate code. 
It's now time to work on the revamp of the symbols, trees, etc.
 2011-01-10 12:25:31 +09:00
Bill Currie
e34f7caeb0 Use op instead of integer_val for ADDOP etc. 2011-01-10 12:25:31 +09:00
Bill Currie
edaa6235e7 Get functions/procedures emitted. 
No actual code is emitted, though.
 2011-01-10 12:25:31 +09:00
Bill Currie
74016573b4 Need frame grabbing after all. 2011-01-10 12:25:31 +09:00