Digital Electronics Objectives Part 24
461 . For the condition of Q 458. The contents of register SP is 054 CH after the interrupt has been started.
462 . An active low signal INTA is not needed from μp to service TRAP interrupt requests.
Q 463 to Q 474, assuming accumulator contain A 64 and the carry is set (1)
463 . Accumulator (A) and carry (CY) contain A 6 H, 1 after ANA A.
664 . Register (A) and carry (CY) contain A 6 H,0 afterORA A.
465 . Register (A) and carry (CY) contain 00 H, 0 after XRA A.
466 . Register A and CY contain 4 AH, 1 after ADI 0A4H.
467 . Register A and CY contain 4 BH, 1 after ACI 0A4H.
468 . Register A and CY contain DDH, 1 after SBI 0B7H.
469 . Register A and CY contain 59 H, 1 after CMA.
470 . Register A and CY contain D 3 H, 0 after RAR.
471 . Register A and CY contain 4 DH, 1 after RAL.
472 . Register A and CY contain 53 H, 0 after RRC.
473 . Register A and CY contain 4 DH, 1 RLC.
474 . Register A and CY contain 06 H, 1 after DAA.
Q. 475 to Q. 482 for the following condition.
A contains 5 EH, B contains 27 H; C contains 4 FH, H contains 00 H, L contains OFFFH and memory locations EEH and 00 FFH contain 2 DH and 4 EH respectively.
The following program begins at memory location 0110H:
ADD C
DAA
MOV B, M
MOV M, A
DAD B.
475 . A will contain 13 H after the program.
476 . B will contain 4 EH after the program
477 . H will contain 28 H after the program.
478 . L will contain 4 EH after the program.
479 . Content of memory location 00 FFH after the program is 2 DH.
480 . The content of memory location 00 FFH after the program is 13 H.
