COMMENT ⊗   VALID 00002 PAGES
C REC  PAGE   DESCRIPTION
C00001 00001
C00002 00002	ABS ADD AND BGN CHK CHKF CHKH CHKL CHKN CHKT CHR CLAB COMM CSP CUP 
C00005 ENDMK
C⊗;
ABS ADD AND BGN CHK CHKF CHKH CHKL CHKN CHKT CHR CLAB COMM CSP CUP 

DEAD 	Should this be used by UCPASC to free registers and memory locations?
	One use would be to never reuse a memory or register as long as the
	stack was not empty and then to specify the locations that can then
	be cleared, when the stack is emptied.

DEC DEF DIF DIV 
 
DMD	Problem if TYPD

DOA 

DUP 	Does this mean a) duplicate the datum on the stack or
	b) duplicate the item referenced by the stack datum and put a new
	datum on the stack that references this new item?

END ENT EQU FJP FLO FLT GEQ GRT 

IEQU IGEQ IGRT ILEQ ILES INEQ 	SOPU needs fixing for these

INC IND INN INT IOR IXA LAB LCA LDA LDC LEQ LES LEX LIVE LOC LOD
MDEF MOD MOV MPY MST MUS NEG NEQ NEW NOT 

NSTR	What about the empty stack requirement?

ODD ORD OPTN PAR PLOD PSTR RET SGS SQR SST STO 	
STP STR SUB SWP SYM TJP TOF TON TRC TYP UJP UNI UNK XJP

General problems

1. The empty stack requirement.
2. DUP STR NSTR etc problem when the stack datum is an address not the item.
3. Missing parammeters in Ucode for SOPU.
4. The unused instruction problem.
5. The overflow problem with H and Q word integer arithmetic.
6. BGN label after the instruction as a parameter.
7. The D-word problem with DMD.
8. Firm list of data types (with meanings) that are to be supported.