Matrix Computation Example (cont.)

*** begin piplining inner loop

SUB .L1X rows,1,ocntr

|| ADD .L2 bptr,4,btmp

|| LDW .D1T1 *aptr++(4),aa0 ;1 load a[i] from memory

|| LDW .D2T2 *bptr,bb0 ;1 load b[i] from memory

|| SUB .S2X colms,1,lcntr ; load cntr = comumns - 1

oloop:

[lcntr] LDW .D1T1 *aptr++(4),aa0 ;2 if(lcntr) load a[i] from memory

|| [lcntr] LDW .D2T2 *btmp++(4),bb0 ;2 if(lcntr) load b[i] from memory

|| [lcntr] SUB .L2 lcntr,1,lcntr ;2 if(lcntr) lcntr -= 1

|| SUB .S1 colms,2,icntr ;

|| ZERO .L1 sum0 ; zero the running sum

[lcntr] LDW .D1T1 *aptr++(4),aa0 ;3 if(lcntr) load a[i] from memory

|| [lcntr] LDW .D2T2 *btmp++(4),bb0 ;3 if(lcntr) load b[i] from memory

|| [lcntr] SUB .L2 lcntr,1,lcntr ;3 if(lcntr) lcntr -= 1

[lcntr] LDW .D1T1 *aptr++(4),aa0 ;4 if(lcntr) load a[i] from memory

|| [lcntr] LDW .D2T2 *btmp++(4),bb0 ;4 if(lcntr) load b[i] from memory

|| [lcntr] SUB .L2 lcntr,1,lcntr ;4 if(lcntr) lcntr -= 1