* everything related to scripting is now placed in a subdirectory 'scripting', which itself is separated into DECORATE, ZSCRIPT, the VM and code generation.
* a few items have been moved to different headers so that the DECORATE parser definitions can mostly be kept local. The only exception at the moment is the flags interface on which 3 source files depend.
- DECORATE now has atan2(y,x) and VectorAngle(x,y) functions. They are
identical except for the order of their parameters. The returned angle
is in degrees (not radians).
- I kept getting confused trying to read these instructions, so now their
disassembly looks more MIPS-like:
* All mnemonics have had 'b' prepended to them for "branch".
* The CMP_CHECK bit alters the displayed mnemonic for the inverted
versions. e.g. BEQ can be displayed as BNE.
* The following JMP instruction that encodes the branch destination has
been folded into the disassembly of the branch instruction. Unlike
MIPS, I chose to display it offset from the branch check with =>
instead of another comma.
- 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
- 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)
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)
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)
