The code is (assembly) Please only answer if you are certain. I\'m trying to lea
ID: 2291179 • Letter: T
Question
The code is (assembly)
Please only answer if you are certain. I'm trying to learn this myself and I can't afford confusing errors.
Explanation / Answer
Answer :- The instructions are written below-
Single Register Immeditae :- LDI
Two Register :- MOV, ADD
IO direct :- OUT
Data Direct :- STS
Data Indirect :- ST, LD
Data Indirect with Displacement :- LDD
Data Indirect with pre-decrement :- NA
Data Indirect with post-decrement :- NA
The 16-bit opcode for STS TCCR2B, R16 is 1010_1kkk_rrrr_kkkk. The value in place of rrrr will be 0000 for register R16, since r varies from R16 to R31. The value of k ranges from 0x40 to 0xBF. TCCR2B has a address of 0xB1. Thus k = 0xB1 – 0x40 = 0x71 = 0111_0001. Thus the 16-bit opcode would be-
1010_1111_0000_0001 .
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