/* FRAME_CHAIN takes a frame's nominal address
and produces the frame's chain-pointer.
- FRAME_CHAIN_COMBINE takes the chain pointer and the frame's nominal address
- and produces the nominal address of the caller frame.
-
However, if FRAME_CHAIN_VALID returns zero,
- it means the given frame is the outermost one and has no caller.
- In that case, FRAME_CHAIN_COMBINE is not used. */
+ it means the given frame is the outermost one and has no caller. */
/* In the case of the NPL, the frame's norminal address is Br2 and the
previous routines frame is up the stack X bytes, where X is the
#define FRAME_CHAIN_VALID(chain, thisframe) \
(chain != 0 && chain != (thisframe)->frame)
-#define FRAME_CHAIN_COMBINE(chain, thisframe) \
- (chain)
-
/* Define other aspects of the stack frame on NPL. */
#define FRAME_SAVED_PC(frame) \
(read_memory_integer ((frame)->frame + 8, 4))