Commit graph

21 commits

Author SHA1 Message Date
Christoph Oelckers
2b33601d00 - The fixed_t type for the VM also is not needed any longer and was removed. 2016-03-25 15:50:39 +01:00
Christoph Oelckers
3a598d672e - removed the angle_t type from the VM, now that nothing in the interface requires it anymore. 2016-03-25 14:55:01 +01:00
Christoph Oelckers
161d03231a - added custom math routines for reliability. 2016-03-11 15:45:47 +01:00
Randy Heit
55142078d8 Normalize line endings 2016-03-01 09:47:10 -06:00
Randy Heit
ade780d810 Redo ACustomInventory::CallStateChain to check return types 2016-02-18 22:05:10 -06:00
Christoph Oelckers
6d0ef7a9da - added conversion macros to convert floating point angles to angle_t, using xs_Float.h, and replaced all occurences in the code with them (let's hope I found everything.)
Converting a floating point value that is out of range for a signed integer will result in 0x80000000 with SSE math, which is used exclusively for this purpose on modern Visual C++ compilers, so this cannot be used anywhere.
On ARM there's problems with float to unsigned int conversions.

xs_Float does not depend on these
2016-02-08 12:10:53 +01:00
Randy Heit
3ea0d1b444 Add VM opcodes NOP, LANG, and SANG
- To simplify code generation genericizing, add three new opcodes
  * NOP: No-Operation
  * LANG: Load Angle - load a BAM angle into a float reg as degrees
  * SANG: Save Angle - store a float reg into a BEM angle, converting from degrees
2013-08-23 21:46:40 -05:00
Randy Heit
ff7b1f6e5e Add degree variants of FLOP operations
- Added versions of the trig operations supported by FLOP that can work
  with degrees directly instead of radians.
- Reorder FLOPs into more sensible groupings.
2013-07-28 20:22:47 -05:00
Randy Heit
c2e700f116 - Move the RET and RETI final flag into the high bit of the destination selector.
SVN r3922 (scripting)
2012-10-29 01:11:24 +00:00
Randy Heit
6e88529324 - Added a RETI instruction for returning 15-bit signed immediate values.
- Changed Actor's Damage property into an actual function. All access to the damage property
  must now be done through GetMissileDamage. actor->GetMissileDamage(0, 1) is equivalent
  to the former actor->Damage, for the case where actor->Damage was not an expression. (I
  suppose I will probably need to make a thunk for DECORATE expressions that want to read it.)
- Cleaned up some decorate expression evaluation functions that are no longer used.

SVN r3919 (scripting)
2012-10-28 04:36:52 +00:00
Randy Heit
110c253854 - Silence GCC warning stuffs.
SVN r3911 (scripting)
2012-10-26 22:56:50 +00:00
Randy Heit
38d7b7d203 - Fixed errors and warnings when compiling with GCC. (Unfortunately, the VC++ debug builds
become ungodly slow when using mods with complex DECORATE. The GCC debug builds run just
  fine, however. Hopefully this is something that can be fixed later with an assembly-optimized
  version of the main VM loop, because I don't relish the thought of being stuck with GDB
  for debugging.)
- Fixed: The ACS_Named* action specials were erroneously defined as taking strings instead of
  names.
- Fixed: Copy-paste error caused FxMultiNameState::Emit to generate code that called
  DecoNameToClass instead of DecoFindMultiNameState.
- Updated FxActionSpecialCall::Emit for named script specials.
- Fixed inverted asserts for FxMinusSign::Emit and FxUnaryNotBitwise::Emit.


SVN r3893 (scripting)
2012-10-18 03:19:27 +00:00
Randy Heit
a5c938445a - Oh look! It's a comment that didn't get saved before the last commit!
SVN r3772 (scripting)
2012-07-20 01:07:04 +00:00
Randy Heit
e1a2f3b546 - Added the TAIL instruction to perform a CALL and a RET in the same instruction. The called
function will pass its results directly to this function's caller. Eventually, this should
  be changed to do a proper tail call for scripted functions.

SVN r3769 (scripting)
2012-07-17 04:06:28 +00:00
Randy Heit
6f1bf257e9 - State code now properly calls action functions and has a RET instruction. As expected,
running with the checked VM can be quite slow, since it has asserts everywhere. Some other
  fixes were needed before the code actually worked:
  - A_CallSpecial needs to have its arguments cast to ints.
  - Some functions that set pnum/paramnum directly did not decrement it by 1. This also applies
    to A_Jump, though it just uses the value of paramnum instead of changing it.
  - Renamed pnum in the PARAM macros to paramnum, since pnum is already used in a few other
    places for something different, so this makes searching for it easier.
  This has not been tested especially thoroughly, but a first glance seems to indicate success.

SVN r2163 (scripting)
2010-02-14 19:59:21 +00:00
Randy Heit
e5ef25591d - Use a union, rather than pointer aliasing, to access the parts of a VM instruction.
SVN r1922 (scripting)
2009-10-17 00:33:23 +00:00
Randy Heit
126c738116 - Added PARAMI for the common case of passing an integer constant to a function.
- Made FxParameter::Emit free its operand's register.

SVN r1918 (scripting)
2009-10-15 21:59:37 +00:00
Randy Heit
3001708d16 - Added some code for generating VM code from FxExpressions. This is completely untested, since
it isn't even used anywhere yet. In retrospect, I probably should have targeted an intermediate
  representation and done codegen with that instead, since that would be something I can reuse.

SVN r1908 (scripting)
2009-10-11 00:02:14 +00:00
Randy Heit
3e7b69a12e - All states now use thunk functions to call the action functions. This is the bare
minimum to be able to say that VM is being used.
- Added tags for the pointer constants table.

SVN r1871 (scripting)
2009-09-23 00:23:24 +00:00
Randy Heit
1eb7912bd8 - Make the autosegs read-only.
- Derive PClass from dobject.cpp. This has one major ramification: Since the PClass
  is not allocated until runtime, you cannot initialize any static/global data
  structures with pointers to PClasses using RUNTIME_CLASS. Attempting to do so
  will just initialize with a NULL pointer. Instead, you can initialize using
  the address of the pointer returned by RUNTIME_CLASS and dereference that. By
  the time you have an opportunity to dereference it, it will no longer be NULL.
- Sync CmakeLists.txt.
- Random fixes for problems GCC spotted.

SVN r1852 (scripting)
2009-09-17 01:36:14 +00:00
Randy Heit
92766165f5 OMG! Wrong directory!
SVN r1844 (scripting)
2009-09-16 03:01:40 +00:00
Renamed from zscript/vmexec.h (Browse further)