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Graphics Interchange Format  |  1997-01-13  |  100.6 KB  |  545x481  |  4-bit (16 colors)
   ocr: (a) 6 11 16 31 PowerPC 601 OPCD RT RA ) 6 11 16 31 Alpha 21064 OPCD RT RA (RA) + DIfRA20 POWerPC601 Effective address= D ifl RA=0 21064 Effective address- (RA)+DIFRA-31 Alpha D. IRA-31 (b) 6. 11 16 21 31 PowerPC 601 OPCD RT RA RB EO Rc PowerPC 601 Effective addresse (RA) + (RB) if RA20 D if RA=1 Alpha 21064 Register + register addressing is notavailable. Figure 6: Memory AStruCHOn formal. (a) Load- and store-t sstruction format using register + displacement addressing Tbe aisplacement D iS sign extended prior to adaition. In Alpba, D is multiplied by 216 fOPCD = LDAH. RT is the destination reg ...