Mathematical Assembly Language Program (Help).

***************************************************
        * This program will run the structure:                  *
        *                                                                     *
        * while (a <= 10)                                              *
        * {                                                                   *
        *     if ((a +b) >= c)                                          *
        *     {                                                               *
        *            a = a - b                                             *
        *            c = c - 1                                             *
        *      }                                                              *
        *      else                                                          *
        *      {                                                              *
        *            a = a + b                                            *
        *            c = c + 1                                            *
        *      }                                                              *
        *            c = c + 10                                          *
        * }                                                                   *
        * with starting values of a = -2, b = 4, c = 0        *
        ***************************************************

* This program will run the if structure:              


*data location starts at $8000
	ORG $8000
AVAL FCB -2
BVAL FCB 4
CVAL FCB 0
CINC FCB 10

*main program starts at $9000
	ORG $9000	
	LDS #$01FF	; initialize SP
	LDAA AVAL	; load the A register with the value of A
	LDAB CVAL	; load B with the value of C
	ADDA BVAL	; add B to A and store the result in A

WHILE	CMPA #10	; subtract 10 from value of A (running total)
	BLT  IF		; branch to IF if A is less than 10

IF	CMPA CVAL	; compare (A + B) to C
	BLT  ELSE	; branch to the else part if (a + b) < c
	SUBA BVAL       ; a = (a + b)-b
	SUBA BVAL	; a = a - b
	STAA AVAL	; save the A value
	DECB		; c = c - 1
	BRA NEXT	; skip the else code

ELSE	STAA AVAL	; a = a + b
	INCB		; c = c + 1
NEXT	ADDB CINC	; c= c + 10
ENDWHL	BRA WHILE	;loop back up	

DONE	BRA DONE	; stupid, but necessary
	END		; pseudo-op, tells the assembler that we're done