Make dc check for recursive reads
diff --git a/src/data.c b/src/data.c
index 4300d35..ca3730d 100644
--- a/src/data.c
+++ b/src/data.c
@@ -247,7 +247,7 @@
BC_LEX_INVALID, BC_LEX_INVALID, BC_LEX_INVALID, BC_LEX_INVALID,
BC_LEX_INVALID, BC_LEX_INVALID, BC_LEX_OP_REL_EQ, BC_LEX_INVALID,
BC_LEX_KEY_IBASE, BC_LEX_INVALID, BC_LEX_KEY_SCALE, BC_LEX_LOAD,
- BC_LEX_INVALID, BC_LEX_OP_BOOL_NOT, BC_LEX_KEY_OBASE, BC_LEX_PRINT_STREAM,
+ BC_LEX_INVALID, BC_LEX_OP_BOOL_NOT, BC_LEX_KEY_OBASE, BC_LEX_PRINT_POP,
BC_LEX_NQUIT, BC_LEX_POP, BC_LEX_STORE, BC_LEX_INVALID, BC_LEX_INVALID,
BC_LEX_INVALID, BC_LEX_INVALID, BC_LEX_SCALE_FACTOR, BC_LEX_INVALID,
BC_LEX_KEY_LENGTH,
@@ -280,7 +280,7 @@
BC_INST_INVALID, BC_INST_INVALID, BC_INST_INVALID, BC_INST_INVALID,
BC_INST_INVALID, BC_INST_INVALID, BC_INST_INVALID, BC_INST_IBASE,
BC_INST_INVALID, BC_INST_INVALID, BC_INST_LENGTH, BC_INST_INVALID,
- BC_INST_OBASE, BC_INST_PRINT, BC_INST_QUIT, BC_INST_READ,
+ BC_INST_OBASE, BC_INST_PRINT, BC_INST_QUIT, BC_INST_INVALID,
BC_INST_INVALID, BC_INST_SCALE, BC_INST_SQRT, BC_INST_INVALID,
BC_INST_MODEXP, BC_INST_DIVMOD, BC_INST_INVALID, BC_INST_EXECUTE,
BC_INST_PRINT_STACK, BC_INST_CLEAR_STACK,