More uniformity in code generation for 'for' loops

Added new instruction 'OP_TFORPREP' to prepare a generic for loop.
Currently it is equivalent to a jump (but with a format 'iABx',
similar to other for-loop preparing instructions), but soon it will
be the place to create upvalues for closing loop states.

1 files changed, 1 insertions, 0 deletions

diff --git a/lopcodes.c b/lopcodes.c
index f6915beb..11a73c29 100644
--- a/lopcodes.c
+++ b/lopcodes.c
@@ -90,6 +90,7 @@ LUAI_DDEF const lu_byte luaP_opmodes[NUM_OPCODES] = {
  ,opmode(0, 0, 0, 1, iABx)              /* OP_FORPREP1 */
  ,opmode(0, 0, 0, 1, iABx)              /* OP_FORLOOP */
  ,opmode(0, 0, 0, 1, iABx)              /* OP_FORPREP */
+ ,opmode(0, 0, 0, 0, iABx)              /* OP_TFORPREP */
  ,opmode(0, 0, 0, 0, iABC)              /* OP_TFORCALL */
  ,opmode(0, 0, 0, 1, iABx)              /* OP_TFORLOOP */
  ,opmode(0, 1, 0, 0, iABC)              /* OP_SETLIST */