Setting up circular buffers

I have set up circular buffers for both the left and right channels
for a simple band pass FIR filter i get an error when i uses the
parralell multiply and accumalate instruction in my code

undefined or invalid op code code is below any idears whats wrong??

         .include  "c3xmmrs.asm"               ;include memory map 
         .start    ".data",0x809800            ;start address of data
    
           .data
HN         .float      -0.000705659
           .float      -0.003488302
           .float      -0.008788407
           .float      -0.014505267
           .float      -0.015254676
           .float      -0.006203771
           .float      0.011028171 S0_run        .word    0xEBC0000        ;Set global control register
for 32bit
LRCIN         .set     0x80A000         ;LRCIN holds the address of
the CPLD 
HN_ADDR       .word    HN               ;starting address of HN array
XN_ADDR_L     .word    XN_L             ;starting address of XN_L
buffer
XN_ADDR_R     .word    XN_R             ;starting address of XN_R
buffer
XB_ADDR_L     .word    XN_L+LENGTH-1    ;last (bottom) address of XN_L
XB_ADDR_R     .word    XN_R+LENGTH-1    ;last (bottom) address of XN_R
LENGTH        .set     32               ;size of circular buffer
         
              .brstart "XN_BUFFER_L",32   ;align a buffer of size 32
XN_L          .sect    "XN_BUFFER_L"      ;buffer section of XN
              .loop    LENGTH             ;loop length times
              .float   0                  ;init all XN values to zero
              .endloop                    ;end of loop              .brstart "XN_BUFFER_R",32   ;align a buffer of size 32
XN_R         .sect    "XN_BUFFER_R"      ;buffer section of XN
             .loop    LENGTH             ;loop length times
             .float   0                  ;init all XN values to zero
             .endloop             .entry BEGIN                ; start of code   
BEGIN     ldp   @stack                ; Set stack space
          ldi   @stack,SP             ;
          ldp   T0_ctrl               ; Use kernel data page and stack
    
          ldp   HN_ADDR               ;init to data page 128
          ldi   @XB_ADDR_L,AR2        ;AR1=bottom address XN_L buffer
          ldi   @HN_ADDR,AR1          ;AR2=starting address of HN
array
          ldi   @XB_ADDR_R,AR4        ;AR4=bottom address XN_R buffer
          ldi   LENGTH,BK             ;BK2, size of circular buffer
ldi     @S0_rdata,R0       ;load value at address of SP0 receive
data into R1 direct
        lsh     12,R0              ;left shift for sign extention
        FLOAT   R0                 ;convert interger to floating point
        STF     R0,*AR2++%         ;store value at bottom of XN_L
buffer     
        LDF     0,R0               ;init R0=0
        LDF     0,R1               ;init R1=0
        RPTS    LENGTH-1           ;execute next 2 instr 0-31 times
        MPYF3   *AR1++,*AR2++%,R0  ;R0=(AR1)*(AR2)
||      ADDF3   R0,R1,R1           ;in parallel with accumulation=>R1
        ADDF    R0,R1              ;last accumulation => R1
        FIX     R1,R0
        ash    -12,R0              ;right shift keeping the sign bit
        sti     R0,@S0_xdata