For the machine language instructions 6AF82C and D623D0. What is the opcode in binary?
a)What does the instruction do?
b)What is the register -r field in binary?
c)Which register does it specify?
d)Which addressing mode does it specify?
e)What is the operand specifier in hexadecimal.
I hope this is what you want. If you still have any doubt please let me know.
Please refer to the instruction specifier field for all the detail.
Like if r has a 0 value than Accumulator
If r has a 1 value than indexed register X
If aaa =000 immidiate,
Aaa=001 direct
Aaa =010 indirect
Aaa=011 stack relative
Aaa=100 stack relative deferred
Aaa =101 indexed
Aaa = 110 stack indexed
Aaa=111 stack deferred indexed
CONVERT THIS HEXADECIMAL INSTRUCTION INTO BINARY
6=0110
A=1010
F=1111
8=1000
2=0010
C=1100
IN THIS 32 BIT INSTRUCTION, 4 BITS ARE FOR OPCODE, 1 BIT FOR REGISTER, 3 BITS ARE FOR ADDRESSING MODE AND 16 BITS ARE FOR OPRAND SPECIFIER.
0110 1 010 1111 1000 0010 1100
OPCODE REGISTER TYPE(r) ADDRESSING MODE (aaa) OPERAND SPECIFIER
D=1101
6=0110
2=0010
3=0011
D=1101
0=0000
IN THIS 32 BIT INSTRUCTION, 4 BITS ARE FOR OPCODE, 1 BIT FOR REGISTER, 3 BITS ARE FOR ADDRESSING MODE AND 16 BITS ARE FOR OPRAND SPECIFIER.
1101 0 110 0010 0011 1101 0000
OPCODE REGISTER TYPE(r) ADDRESSING MODE (aaa) OPERAND SPECIFIER
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