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Portable Network Graphic  |  1997-07-26  |  130KB  |  816x1056  |  8-bit (256 colors)
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OCR: Sat Feb 17 1996 Beginners Guide Macintosh Assembly Language Programming 1Rage Inside the processoi the address IS stored in a register The 00089 has of these address registers. each being 32 bits wide. Programs can modify these registers so that the processor can keep temporary .pointers to memory locations. register is like a small piece memory that internal to the processor and hence very fast Just as we have registers we also have dafa registers. The difference between address registers and data registers that registers are pesn for referencing memory locations, whilst data registers are pesn for holding and modifying data, for example can be carried out on a data register, but you on address register. Address registers are called A0 through A7 and data registers are called DO through D ...