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Author SHA1 Message Date
Bill Currie
ac91e9376b The big type-system rewrite. Horribly broken :) 
While broken, it is good enough to compile modulo.r.

This gives qfcc C's type system with QC specifics bolted on top (rather
than trying to cram C's type system into QC's). Pointers and arrays now
use C syntax and semantics (though I think there's a lot of breakage in
there at the moment). Functions themselves are still dual mode: both QC
style and C style are available.
 2011-02-01 21:23:03 +09:00
Bill Currie
d11d128c96 Avoid segfaulting on errors. 2011-02-01 21:18:39 +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
54c14eb899 Add "return" to pascal. 
I'm still not sure I'll keep it, but it's useful for testing.
 2011-01-30 22:16:59 +09:00
Bill Currie
e7424e1496 Don't segfault on bare return statements. 
I will probably need to do something about the required operand for v6
progs, but this will do for now.
 2011-01-30 21:43:56 +09:00
Bill Currie
440a13b649 Untwist params' knickers for pascal, too. 2011-01-30 21:42:10 +09:00
Bill Currie
861ab93274 Don't type-check against the wrong type :P 2011-01-29 09:56:08 +09:00
Bill Currie
afc6605739 Don't set the space for external defs. 2011-01-29 09:55:14 +09:00
Bill Currie
d80a3413e5 Fix a segfault when freeing locations. 
When chasing linked lists with a double pointer, must check the first
dereference and not the pointer itself.
 2011-01-29 09:54:47 +09:00
Bill Currie
e1226bd3f1 Quaternions aren't vectors :P 2011-01-28 21:57:04 +09:00
Bill Currie
2cce903cc9 Set the default storage class for local vars. 2011-01-28 21:56:17 +09:00
Bill Currie
bc7d42d176 Immediate constants now work, though still not shared. 2011-01-28 21:39:01 +09:00
Bill Currie
3c95667b79 Print data contents for most simple types. 2011-01-28 21:21:29 +09:00
Bill Currie
4476074021 Print more addresses as hex. 2011-01-28 18:03:26 +09:00
Bill Currie
4837e0bd18 Fix most of the FIXMEs in qfcc.c. 
Functions and defs seem to be relocated correctly. Constants are very
broken, however.
 2011-01-28 15:17:30 +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
a37bdd9fb5 Free removed sblocks. 2011-01-28 13:23:20 +09:00
Bill Currie
80424f6ad5 Ensure functions are always properly terminated. 
Control that reaches the end of a function must see a return statement.
 2011-01-28 13:14:30 +09:00
Bill Currie
9159daf99d Do simple unreachable block analysis and dead block removal. 2011-01-28 11:45:04 +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
4738c767a2 Fix branch label handling. 
Conditional branches and goto now go to the correct location.
 2011-01-27 21:11:32 +09:00
Bill Currie
95b17d9fd4 Rename add_statement_ref to add_statement_def_ref. 2011-01-27 21:10:37 +09:00
Bill Currie
f72d6d6a27 Fix a typo in the opname for integer modulo. 2011-01-27 21:03:11 +09:00
Bill Currie
bd78b8a7ee Enable more end-of-compilation code. 2011-01-27 15:44:12 +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
c7bbd40df6 Give special treatment to opcodes that have void operand types. 2011-01-27 15:44:11 +09:00
Bill Currie
71b5decbe8 Get assignments to .return working. 
I really do not like the mechanism I currently use for handling pointer
derefences vs pointer assignments, but this will have to do for now until
I can get qfcc producing code again.
 2011-01-27 15:44:11 +09:00
Bill Currie
56106892c8 The & operator produces a pointer, not void. 2011-01-27 15:44:10 +09:00
Bill Currie
1c3cc571f1 Pascal variables need defs too. 2011-01-27 15:44:10 +09:00
Bill Currie
f532fbc6df Convert all integer operands to float for v6 progs. 
Converting only opc is no longer enough.
 2011-01-27 15:43:59 +09:00
Bill Currie
1ed1efbdfb Implement the ROTL macro correctly. 
Bit rotation requires unsigned ints.
 2011-01-27 15:43:50 +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
f7d60397fb Set the type for zer_def used by labels. 2011-01-26 22:43:59 +09:00
Bill Currie
36c99a8da1 Get function def creation working again. 2011-01-26 14:48:22 +09:00
Bill Currie
5231e8e9f8 Handle .zero, .return and .param* properly. 2011-01-26 08:01:24 +09:00
Bill Currie
4966120e3b Untwist param's knickers. 2011-01-25 20:21:41 +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
849d013f5e Allocate space for function parameters. 2011-01-25 15:43:57 +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
27c5139612 Give defspaces some backing memory. 
I'm not sure I want all defspaces to have backing memory, but this will do
for now.
 2011-01-25 12:16:13 +09:00
Bill Currie
34ffce50fa Ensure current_symtab gets set at the start of parsing. 
current_symtab must be set even if the first thing encountered is a syntax
error.
 2011-01-25 12:16:13 +09:00
Bill Currie
69b889756d Fix a misplaced ! 2011-01-25 12:16:13 +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
30701980bc Get QC cfunctions and defs working. 2011-01-25 12:16:13 +09:00
Bill Currie
ade2e92ea4 Fix the immediate breakage in immediate handling. 2011-01-25 09:08:11 +09:00