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-rw-r--r--libguile/frames.h25
1 files changed, 12 insertions, 13 deletions
diff --git a/libguile/frames.h b/libguile/frames.h
index 0165924a7..f744c2b24 100644
--- a/libguile/frames.h
+++ b/libguile/frames.h
@@ -31,15 +31,15 @@
---------------
| ... |
- | Intermed. val. 0 | <- fp + bp->nargs + bp->nlocs = SCM_FRAME_UPPER_ADDRESS (fp)
- +==================+
+ | Intermed. val. 0 | <- fp + nargs + nlocs
+ +------------------+
| Local variable 1 |
- | Local variable 0 | <- fp + bp->nargs
+ | Local variable 0 | <- fp + nargs
| Argument 1 |
- | Argument 0 | <- fp
+ | Argument 0 | <- fp = SCM_FRAME_STACK_ADDRESS (fp)
| Program | <- fp - 1
- +------------------+
- | Return address |
+ +==================+
+ | Return address | <- SCM_FRAME_UPPER_ADDRESS (fp)
| MV return address|
| Dynamic link | <- fp - 4 = SCM_FRAME_DATA_ADDRESS (fp) = SCM_FRAME_LOWER_ADDRESS (fp)
+==================+
@@ -50,10 +50,8 @@
assumed to be as long as SCM objects. */
#define SCM_FRAME_DATA_ADDRESS(fp) (fp - 4)
-#define SCM_FRAME_UPPER_ADDRESS(fp) \
- (fp \
- + SCM_PROGRAM_DATA (SCM_FRAME_PROGRAM (fp))->nargs \
- + SCM_PROGRAM_DATA (SCM_FRAME_PROGRAM (fp))->nlocs)
+#define SCM_FRAME_STACK_ADDRESS(fp) (fp)
+#define SCM_FRAME_UPPER_ADDRESS(fp) (fp - 2)
#define SCM_FRAME_LOWER_ADDRESS(fp) (fp - 4)
#define SCM_FRAME_BYTE_CAST(x) ((scm_t_uint8 *) SCM_UNPACK (x))
@@ -71,8 +69,8 @@
(SCM_FRAME_STACK_CAST (SCM_FRAME_DATA_ADDRESS (fp)[0]))
#define SCM_FRAME_SET_DYNAMIC_LINK(fp, dl) \
((SCM_FRAME_DATA_ADDRESS (fp)[0])) = (SCM)(dl);
-#define SCM_FRAME_VARIABLE(fp,i) fp[i]
-#define SCM_FRAME_PROGRAM(fp) fp[-1]
+#define SCM_FRAME_VARIABLE(fp,i) SCM_FRAME_STACK_ADDRESS (fp)[i]
+#define SCM_FRAME_PROGRAM(fp) SCM_FRAME_STACK_ADDRESS (fp)[-1]
/*
@@ -105,12 +103,13 @@ SCM_API SCM scm_vm_frame_p (SCM obj);
SCM_API SCM scm_vm_frame_program (SCM frame);
SCM_API SCM scm_vm_frame_arguments (SCM frame);
SCM_API SCM scm_vm_frame_source (SCM frame);
+SCM_API SCM scm_vm_frame_num_locals (SCM frame);
SCM_API SCM scm_vm_frame_local_ref (SCM frame, SCM index);
SCM_API SCM scm_vm_frame_local_set_x (SCM frame, SCM index, SCM val);
+SCM_API SCM scm_vm_frame_instruction_pointer (SCM frame);
SCM_API SCM scm_vm_frame_return_address (SCM frame);
SCM_API SCM scm_vm_frame_mv_return_address (SCM frame);
SCM_API SCM scm_vm_frame_dynamic_link (SCM frame);
-SCM_API SCM scm_vm_frame_stack (SCM frame);
SCM_API SCM scm_c_vm_frame_prev (SCM frame);