8085 Emulator Instructions

This project aims to emulate the 8085 microprocessor and implement all its instructions with appropriate flag handling. Below is a checklist of all 8085 instructions grouped by categories.

Data Transfer Instructions

Instruction	Description	Status
MOV	Move data between registers.	✅ Done
MVI	Move immediate data.	✅ Done
LDA	Load accumulator directly.	✅ Done
STA	Store accumulator directly.	✅ Done
LDAX	Load accumulator indirectly.	✅ Done
STAX	Store accumulator indirectly.	✅ Done
LHLD	Load H-L pair directly.	✅ Done
SHLD	Store H-L pair directly.	✅ Done
XCHG	Exchange H-L with D-E.	✅ Done
PUSH	Push register pair onto the stack.	✅ Done
POP	Pop register pair from the stack.	✅ Done
OUT	Output to port.	✅ Done
IN	Input from port.	✅ Done

Arithmetic Instructions

Instruction	Description	Status
ADD	Add register to accumulator.	✅ Done
ADC	Add register to accumulator with carry.	✅ Done
SUB	Subtract register from accumulator.	✅ Done
SBB	Subtract register with borrow.	✅ Done
INR	Increment register.	✅ Done
DCR	Decrement register.	✅ Done
CMP	Compare register with accumulator.	✅ Done
CPI	Compare immediate with accumulator.	✅ Done

Logical Instructions

Instruction	Description	Status
ANA	AND register with accumulator.	🔲 Pending
ANI	AND immediate with accumulator.	🔲 Pending
ORA	OR register with accumulator.	🔲 Pending
ORI	OR immediate with accumulator.	🔲 Pending
XRA	XOR register with accumulator.	🔲 Pending
XRI	XOR immediate with accumulator.	🔲 Pending
CMA	Complement accumulator.	🔲 Pending
CMC	Complement carry flag.	🔲 Pending
STC	Set carry flag.	🔲 Pending

Branching Instructions

Instruction	Description	Status
JMP	Jump unconditionally.	🔲 Pending
JC	Jump if carry is set.	🔲 Pending
JNC	Jump if carry is not set.	🔲 Pending
JZ	Jump if zero.	🔲 Pending
JNZ	Jump if not zero.	🔲 Pending
CALL	Call subroutine.	🔲 Pending
RET	Return from subroutine.	🔲 Pending
RST	Restart (vector interrupt).	🔲 Pending

Stack & Machine Control Instructions

Instruction	Description	Status
PUSH	Push register pair onto the stack.	✅ Done
POP	Pop register pair from the stack.	✅ Done
HLT	Halt the program.	🔲 Pending
NOP	No operation.	🔲 Pending
DI	Disable interrupts.	🔲 Pending
EI	Enable interrupts.	🔲 Pending

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Progress

• Completed: 11
• Pending: 31

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How to Contribute

1. Clone the repository.
2. Go to the cloned project directory.
3. Make a ' build ' name dirrectory.
4. Go to the build directory and run the command cmake ... ( This will build the project make file ).
5. Add or update instruction implementations.
6. Ensure proper flag handling.
7. Add the test case for your project.
8. Now we have to compile the project.
9. Make sure you are in the ' build ' directory and run the command ``` make ``. ( This will execute the make command ).
10. Run The Command to Run the test cases. ( Make sure all the test cases are pass ).
11. Update this README checklist to reflect your changes.
12. Submit a pull request!

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Happy coding!