2.1 Write a sequence of AVR instructions to clear the bit 7, 4, 2 of the...

 

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2.1 Write a sequence of AVR instructions to clear the bit 7, 4, 2 of the register r18. 2.2 Assume that the contents of the register r16 and carry flag are oxA5 and 1, respectively. What will be new values for r16 and C after the execution of (a) Isl r16 (b) Isr r16 (c) rol r16 (d) ror r16 (e) asr r16 (f) swap r16 2.3 Write a program to set bit 7 and bit o of all the elements of an array to 1. The array has the label arr and 30 8-bit elements and is stored in data memory. 2.4 What will be the values stored in registers r1 and ro after the execution of the instruction mul r16, r17 if r16 and r17 originally contain the following values? (a) ox58 and ox37 (b) ox29 and 0x49 2.1 Write a sequence of AVR instructions to clear the bit 7, 4, 2 of the register r18. 2.2 Assume that the contents of the register r16 and carry flag are oxA5 and 1, respectively. What will be new values for r16 and C after the execution of (a) Isl r16 (b) Isr r16 (c) rol r16 (d) ror r16 (e) asr r16 (f) swap r16 2.3 Write a program to set bit 7 and bit o of all the elements of an array to 1. The array has the label arr and 30 8-bit elements and is stored in data memory. 2.4 What will be the values stored in registers r1 and ro after the execution of the instruction mul r16, r17 if r16 and r17 originally contain the following values? (a) ox58 and ox37 (b) ox29 and 0x49

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21 AVR Instructions to Clear Bits Clear bit 7 4 2 of register r18 Assuming r18 is in register 18 Cle... View the full answer