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559 commits

Author SHA1 Message Date
Bill Currie
256dee98a1 Make progs string resources management private 
Strangely enough, using the progs resources system. This is a step
towards having progs that can be reset properly, or even dynamically
created VMs.
 2020-02-25 00:23:08 +09:00
Bill Currie
7406e0308e Fix some warnings picked up in an optimized build 2020-02-24 11:28:43 +09:00
Bill Currie
dda045bf96 Do lazy computation of def sizes from type encodings 
The size is calculated when needed and cached.
 2020-02-23 23:29:58 +09:00
Bill Currie
23573953a7 Change pr_type_size to pr_ushort_t 2020-02-23 22:25:08 +09:00
Bill Currie
d0dc0e15fb Handle alias types in debug prints 2020-02-23 19:02:16 +09:00
Bill Currie
b173c35eb4 Rework progs debug to use the type encodings 
It's only a start: the output is, if anything, slightly worse than
before, but it does have the basics going.
 2020-02-23 19:01:59 +09:00
Bill Currie
4b7ecdf74a Make PR_Init take an instance to initialize 
This allows internal sub-systems to do per-instance initializations
without other engine systems having to know about them.
 2020-02-23 18:32:16 +09:00
Bill Currie
806af85447 Remove reference to ddef_t from progs.h 
This cleans up some horrible names and redundant fields that were a
result of the transition to pr_def_t
 2020-02-22 22:44:08 +09:00
Bill Currie
81083698a8 Move to using an in-memory form of ddef_t 
This allows the VM to work with extended ddefs transparently. It seems
to have uncovered a typedef alias relocation bug, though.
 2020-02-22 22:33:44 +09:00
Bill Currie
c296514b95 Make pr.load_file 'return' the file size 2020-02-21 21:17:28 +09:00
Bill Currie
ed283a9e7f Copy only the necessary number of vararg parameters 2020-02-16 18:00:29 +09:00
Bill Currie
12d2a0ff75 Copy the correct number of words for rcall 2020-02-16 17:58:36 +09:00
Bill Currie
f5741a979e Implement parameter alignment in the engine 
The engine now requires non-v6 progs to store the log2 alignment for the
param struct in .param_alignment.

PR_EnterFunction is clearer and possibly more efficient.
 2020-02-16 17:13:45 +09:00
Bill Currie
32c21ec559 Make gcc accept the bitwise-boolean magic 
Forgot to compile check...
 2020-02-16 12:08:08 +09:00
Bill Currie
b4fd804e4e Implement true modulo in the engine 2020-02-16 11:53:56 +09:00
Bill Currie
4269c8cb07 Rename the mod instruction to rem 
Because % really implements remainder rather than true modulo, and I
plan on adding %% to implement true modulo.
 2020-02-16 11:04:30 +09:00
Bill Currie
533fb8acc9 Implement double constants 2020-02-15 23:49:12 +09:00
Bill Currie
2cd62fe01b Fix several double-related bug 
float is promoted to double through ... for non-v6 code.
PR_Sprintf has custom param access via P_*, messed up doubles.
 2020-02-15 23:49:12 +09:00
Bill Currie
df7c08a010 Add support for doubles to Ruamoko 
Only as scalars, I still need to think about what to do for vectors and
quaternions due to param size issues. Also, doubles are not yet
guaranteed to be correctly aligned.
 2020-02-15 23:49:12 +09:00
Bill Currie
13b608f40c Don't truncat float % float 
This allows full usage, eg, x % pi, but otherwise maintains
compatibility with integer %
 2020-02-15 23:49:12 +09:00
Bill Currie
f68129dc0f Try to use type encodings for function return type 
Now return statements in traces make much more sense.
 2019-06-09 18:11:56 +09:00
Bill Currie
0f5f2a125a Use a reliable reference for calculating progs offsets. 
Now that pr->zone can be null, it cannot be used as a reference. Fixes
random crashes when using qfprogs (random due to heap randomization).
 2018-10-13 23:23:45 +09:00
Bill Currie
b7aa5bb8fe Fix an oops messing up edict size. 2018-10-12 14:33:26 +09:00
Bill Currie
33cbc500e8 Fix a segfault when setting up the stack. 
Yup, putting {}s around even single statements under flow control (if, etc)
is a good idea. Wonder if there's a gcc warning for that...
 2018-10-11 13:34:08 +09:00
Bill Currie
6252faa069 Fix a size error in OP_LOAD_Q. 
C&P from OP_LOAD_V :/
 2018-10-11 13:25:32 +09:00
Bill Currie
364c2d2c2b Add a stack and push and pop instructions. 
The stack is for data, not return addresses.
 2018-10-11 13:24:03 +09:00
Bill Currie
61185813fa Cleaner handling of zone_size/zone. 2018-10-11 10:22:10 +09:00
Bill Currie
82809eb856 Simplify the call to PR_LoadProgsFile. 
I've decided that setting pr.max_edicts and pr.zone_size as part of the
local progs initialization rather than in PR_LoadProgsFile makes more
sense. For one, it is unlikely for the limits to change every time progs is
reloaded. Also, they seem to be a property of the VM rather than the progs.
However, there is nothing stopping the caller from updating max_edicts and
zone_size every call.
 2018-10-11 10:06:48 +09:00
Bill Currie
34bcf7faab Do a pure/const/noreturn/format attribute pass. 
I always wanted these, but as gcc now provides warnings for functions that
could do with such attributes, finding all the functions is much easier.
 2018-10-09 12:42:21 +09:00
Bill Currie
59e85b7d5e Fix a pile of dead assignments. 
Some were actual bugs!
 2018-09-08 22:23:57 +09:00
Bill Currie
8fd5be0ee0 Fix a pile of sizeof goofs. 
While scan-build wasn't what I was looking for, it has proven useful
anyway: many of the sizeof errors were just noise, but a few were actual
bugs (allocating too much or too little memory).
 2018-09-07 20:00:57 +09:00
Bill Currie
0de0eb2fc7 Fix a bunch of bit-rot. 2018-06-08 13:21:30 +09:00
Bill Currie
546e333a3c Allow Sys_Error to be hooked. 
This makes debugging builtins that wrap normal functions a little easier by
giving a progs dump when such an error occurs.
 2016-01-03 23:04:00 +09:00
Bill Currie
7b350b2a1b Indicate calls to builtins when tracing. 
This makes following progs traces a little easier.
 2016-01-03 16:13:59 +09:00
Bill Currie
3efb0c538f Separate file search from loading. 
QFS_LoadFile (and its wrappers) now  take a file handle rather than a
path. This will make vpath usage a little cleaner to implement.
 2014-01-28 16:22:05 +09:00
Bill Currie
4c6478c77f Strip trailing spaces from field names. 
A certain mod (glare at rogue) has a space at the end of a field name in
the bsp entity data causing a crash. Thanks to ccr for the report.
 2013-11-26 14:27:49 +09:00
Bill Currie
f5501fbf24 Fix a pile of automake deprecation warnings. 
s/INCLUDES/AM_CPPFLAGS/g

I <3 sed :)
 2013-11-24 13:11:50 +09:00
Bill Currie
99a8e8f228 Fix the jump instruction. 
The offset to compensate for st++ was missing.

Obviously, the code has never been tested.  Found while looking at the
jump code and thinking about using 32-bit addresses for the jump tables.
 2013-06-26 09:59:19 +09:00
Bill Currie
7c1d9d2b84 Make the angle and light hacks optional. 
I'd forgotten that ED_ConvertToPlist mangled light into light_lev and
single component angle values into a vector. This fixes much of the
breakage in qflight (but not the light levels)
 2013-03-07 09:11:23 +09:00
Bill Currie
675db274a6 Use Sys_Error instead of PR_Error in ED_ConvertToPlist. 
ED_ConvertToPlist is now independent of the progs engine as its only use
for the progs_t * param was for PR_Error.
 2013-03-07 09:11:22 +09:00
Bill Currie
7d2e938d37 Correct some error messages. 
ED_ParseEntity has been ED_ConvertToPlist for a long time now.
 2013-03-07 09:11:22 +09:00
Bill Currie
e27d7cbd2d Handle alloca "correctly". 
Use AC_FUNC_ALLOCA and the #ifdef mess suggested by the autoconf docs
(hidden in qfalloca.h).
 2013-01-22 21:02:50 +09:00
Bill Currie
6b05a7e964 Add (%Ec) to OP_ADDRESS's format specifier. 
This makes OP_ADDRESS and OP_LOAD_* consistent.
 2013-01-17 16:43:54 +09:00
Bill Currie
c25e68ecaf Use hex output for %E opcode format specifier. 
This makes %E's addresses consistent with other address output.
 2013-01-17 16:42:28 +09:00
Bill Currie
3c67e8f020 Fix the vector/quaternion scaling instructions. 
It was pointed out by Blub\w (gmqcc) that OP_MUL_FV and friends were buggy
when the operands overlapped (eg, x = x.x * x) as the result would become
'x.x*x.x x.y*x.x*x.x x.z*x.x*x.x' (note the x.x squared for y and z). On
testing, sure enough the bug was present (and is a nice demonstration that
QF's VM does NOT have strict-aliasing bugs). As a very nice benefit: the
code produced by the fixes is actually faster than the broken version :).

The ruamoko code used for testing:
void (string fmt, ...) printf = #0;

vector foo (vector x)
{
    x = x * x.x;
    return x;
}

vector bar (vector x)
{
    x = x.x * x;
    return x;
}

int main ()
{
    vector x = '2 3 4';
    vector y = foo (x);
    vector z = bar (x);
    printf ("x=%v y=%v z=%v 2*x=%v\n", x, y, z, 2*x);
    return 0;
}
 2013-01-17 10:23:02 +09:00
Bill Currie
6b97967a68 Use g instead of e for the fp values. 
Need to up the precision by one due to the difference between g and e, but
much prettier. Might need to rename that function :P I wish I'd thought to
check if g would work, but thanks to divVerent for the suggestion.
 2013-01-08 20:15:24 +09:00
Bill Currie
b096a0242e Write fp values to saved games with enough precision. 
That is, enough precision to uniquely identify the fp values. No drifts!
 2013-01-08 18:50:44 +09:00
Bill Currie
9155338404 Add support for int and quaternion values in saved games. 2013-01-08 18:09:22 +09:00
Bill Currie
3e2a40684c Use dstring in PR_UglyValueString(). 
I should have done this a long time ago:P. This removes the really silly
255 char limit from strings in saved games (and thus fixes books in ITS).
 2013-01-08 17:20:58 +09:00
Bill Currie
e0e69ac71a Fix some signed/unsigned comparison warnings. 
It seems mingw's gcc treats pointer subtraction differently to how linux's
gcc does.
 2013-01-05 17:52:48 +09:00