Question
Can you solve this question considering ID = 12345678, and using only from the following instructions to check the validity of the ID (checking the
Can you solve this question considering ID = 12345678, and using only from the following instructions to check the validity of the ID (checking the most significant nibble if equal to zero):
Instructions to be used: (plus using simple arithmetic and logical instructions)
B label | Branch to label Always |
BEQ label | Branch to if Z == 1 Equal |
BNE label | Branch to if Z == 0 Not equal |
BCS label | Branch to if C == 1 Higher or same, unsigned |
BHS label | Branch to if C == 1 Higher or same, unsigned |
BCC label | Branch to if C == 0 Lower, unsigned |
BLO label | Branch to if C == 0 Lower, unsigned |
BMI label | Branch to if N == 1 Negative |
BPL label | Branch to if N == 0 Positive or zero |
BVS label | Branch to if V == 1 Overflow |
BVC label | Branch to if V == 0 No overflow |
BHI label | Branch to if C==1 and Z==0 Higher, unsigned > |
BLS label | Branch to if C==0 or Z==1 Lower or same, unsigned |
BGE label | Branch to if N == V Greater than or equal, signed |
BLT label | Branch to if N != V Less than, signed |
BGT label | Branch to if Z==0 and N==V Greater than, signed > |
BLE label | Branch to if Z==1 or N!=V Less than or equal, signed |
BX Rm | Branch indirect to location specified by Rm Branch to subroutine at label |
BL label | |
BLX Rm | Branch to subroutine indirect specified by Rm |
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