Section 7.2 4. Each of the following is an assembly language instruction th (a)L

Question

Section 7.2 4. Each of the following is an assembly language instruction th (a)LDAA#52D (b) LDAASTC (c)LDAA$57BB 5. Explain the difference between the direct address mode and 6. Which 68HC11 address mode always uses 2 bytes following t thatAssume the data comes from. accumulator A. For each, indicate where the data comes fwill load 02006 (d) LDAA S3FX s mode and the mode the op code? bytes following the op code? 8. Which address mode might require I byte or 2 bytes followin 7. Which address mode requires no 9. Study the following instruction sequence. What will [ACCAL ACCD] be at the end of the sequence? Address Instruction codeMnemonic 0350 0353 0355 0357 CE 8F 00 DF FE 96 FE D6 FF LDX #S8F00 STX SFE LDAA $FE LDAB $FF 10. Which address mode is used in conditional branch instructions? 11. Which address mode involves the use of the X and Y registers? Sections 7.3-7.4 12. Why are there 308 different op codes if the 68HC11 instruction set contains only li different types of instructions? 13. How many different types of 68HC11 instructions can operate on either the accume lator or memory?

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Direct Addressing:

Extended Addressing:

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