Commit graph

370 commits

Author SHA1 Message Date
Bill Currie
1452da676d Allow types to be built from the outside in.
This is required for C style decl processing.
2011-02-02 15:07:44 +09:00
Bill Currie
80ce179bc2 Scan the param list for problems with void. 2011-02-01 21:18:08 +09:00
Bill Currie
c53001800a Create a struct for representing specifiers.
The specifiers are yet to come (next few commits), but this will be
necessary when they do.
2011-02-01 21:15:51 +09:00
Bill Currie
917c5f08b0 Make a var representing the default type.
The default type for vars is integer for ruamoko and float for v6 qc.
2011-02-01 21:12:02 +09:00
Bill Currie
834417b8c8 Add "debug" diagnotic printing, and use it.
Debug diagnostics are silent for verbosity levels less than 1.
2011-01-28 13:28:45 +09:00
Bill Currie
90a2738459 Add the label to the block to which it refers. 2011-01-28 11:41:53 +09:00
Bill Currie
c158b14286 Remove the labels list from the pr struct.
I'm not sure they were ever needed.
2011-01-28 11:40:25 +09:00
Bill Currie
cdea1d07aa Produce code for progs.src mode.
Separate compilation will take fixing object files.

The generated code is broken due to various relocation fixups being
broken, and float immediates seem to be badly broken.

Debug information is broken too.
2011-01-27 15:44:11 +09:00
Bill Currie
a6e65488ec Remove the "test" parameter from test_expr.
The parameter became redundant at some stage.
2011-01-27 08:31:51 +09:00
Bill Currie
36c99a8da1 Get function def creation working again. 2011-01-26 14:48:22 +09:00
Bill Currie
6ce3c5a59a Get statments being emitted to the code segment.
The first function seems to work fine, but there's a problems with the
scope of params causing params to get their knickers in a twist (tangled
linked list).
2011-01-25 15:46:48 +09:00
Bill Currie
fd3b594ca5 Move label relocs to the relevant statement block. 2011-01-25 15:45:31 +09:00
Bill Currie
f45919df09 Need alias defs after all. 2011-01-25 15:42:26 +09:00
Bill Currie
a648f043de Give functions their own defspace.
The defspace is propogated through the function's sub-scopes.
2011-01-25 12:34:45 +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
7e914b8c53 Fix copyright headers.
Add forgotten templates and fill in the information in places I had
forgotten. I hope I got the dates right (timezone issues).
2011-01-25 09:01:37 +09:00
Bill Currie
49b7c2d527 Document make_symbol 2011-01-25 09:01:37 +09:00
Bill Currie
0624408317 Move the diagnostic functions into their own file. 2011-01-24 21:54:57 +09:00
Bill Currie
d618e51dc8 Move save_string and make_string into strpool
Might not be the perfect place, but at least they're strongly related.
2011-01-24 21:32:48 +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
20b14af024 Add "is_math" type check and use for unary +/-. 2011-01-23 11:12:58 +09:00
Bill Currie
341f370662 Rename is_math() to is_math_op(). 2011-01-23 11:12:05 +09:00
Bill Currie
dea6771d92 Create type_nil for passing nil into ... 2011-01-22 16:41:31 +09:00
Bill Currie
d5f669af7a Nuke temp reference counting.
The whole reason for this crazy developement branch :)
2011-01-22 11:40:53 +09:00
Bill Currie
3b462e16cf Produce flow diagrams of the basic blocks. 2011-01-22 11:40:53 +09:00
Bill Currie
52b561f7cb Nuke bind expressions.
Since I'm planning on implementing CSE and other optimizations, they're
rather redundant (and I'm having trouble getting them to work).
2011-01-21 19:07:58 +09:00
Bill Currie
4a24393d8d Temp expressions now use operands instead of defs. 2011-01-21 11:26:43 +09:00
Bill Currie
16e013ff5d Allow the operand to override the symbol's type. 2011-01-21 10:56:32 +09:00
Bill Currie
f8cc347dce Print expressions as dot files.
While the resulting images can be a little confusing, they're much easier
to read than my cryptic postfix notation.
2011-01-20 15:23:19 +09:00
Bill Currie
5deda9c9b9 Clean out ex_def as ex_symbol replaces it. 2011-01-19 22:25:04 +09:00
Bill Currie
b5424bca7d Start work on getting expressions converted to internal statements. 2011-01-19 15:47:45 +09:00
Bill Currie
cac2e04b18 Avoid namespace issues with dstatements. 2011-01-19 11:35:34 +09:00
Bill Currie
f2ef24d0cc Make symbols use the new value struct for constants. 2011-01-19 11:09:54 +09:00
Bill Currie
e08efe036b Move the constant expression values into their own struct. 2011-01-19 08:43:24 +09:00
Bill Currie
ff6e1b4d6c Get functions attempting to generate code.
However, the statements are only printed as expressions.
2011-01-19 08:38:09 +09:00
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
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
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
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
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
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
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