daily pastebin goal
5%
SHARE
TWEET

OpCodes

a guest Sep 15th, 2017 43 Never
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
  1. The bytes of the assembly code will be as follows
  2. Instruction Memnoic                     | First Byte   |   Second Byte   | Third Byte    | Fourth Byte   | Fifth Byte    | Sixth Byte     | Seventh Byte |  Eighth Byte
  3. 0) NOP                                           | 0x00          |
  4. 1) LD REGISTER , Value             | 0x01          |0x0->0x0C        | 1st Val Byte  | 2nd Val Byte | 3rd Val Byte| 4th Val Byte |
  5. 2) LD REGISTER , REGISTER          | 0x02          | 0x00 -> 0x0C    | 0x00 ->0x0C | 0x00 to 0x0C mean registers A to F and 6 to 12.
  6. 3) LD REGISTER, $REGISTER         | 0x03          | 0x00 -> 0x0C    | 0x00 ->0x0C | 0x00 to 0x0C mean registers A to F and 6 to 12.   //Loads the value stored in memory address of $REGISTER
  7. 4) ST Value, REGISTER                  |0x04           | 1st Value Byte   | 2nd VByte     | 3rd Vbyte    | 4th VByte    | 0x00->0x0C | 0x00 to 0x0c means Registers A to F and 6 to 12
  8. 5) ST Value, $REGISTER                |0x05           | 1st Value Byte   | 2nd VByte     | 3rd Vbyte    | 4th VByte    | 0x00->0x0C | 0x00 to 0x0c means Registers A to F and 6 to 12
  9. Opcode #5 stores Value to the memory address the register points to not the register itself.
  10. 6) ADD REGISTER, REGISTER       | 0x06          | 0x00 ->0x0C     | 0x00 ->0x0C //Adds two registers values together, the result always stored in the first 32 bit register.
  11. 7) ADD REGISTER, VALUE            | 0x07          | 0x0->0x0C        | 1st Val Byte  | 2nd Val Byte | 3rd Val Byte| 4th Val Byte | //Adds the value to the REGISTER
  12. 8) ADD REGISTER, $REGISTER     | 0x08          | 0x0->0x0C        | 0x0-> 0x0C   |   //Adds the value that is in the address R. points to, to R.. not the same as adding the value OF R. to R..
  13. Note, the first and second bytes of all Register, Register opcodes represent the index of the registers from 0x00 to 0x0C IE Register A is 0x00 and Register B is 0x01
  14. 9) SUB REGISTER, REGISTER     | 0x09              |0x00 ->0x0c      | 0x00 ->0x0c  | //subtracts the value of 2nd Register from 1st Register. Stores result in 1st Register
  15. 10) SUB REGISTER, VALUE         |0x0A              | 0x00 ->0x0c    | 1st Val Byte   | 2nd Val Byte | 3rd Val Byte  | 4th Val Byte //Subtracts the Value from the chosen register, result stored in register
  16. 11) SUB REGISTER, $REGISTER | 0x0B             | 0x00->0x0c     | //Subtracts the value stored in memory that $REGISTER points to, from REGISTER
  17. //For these two I'll just AND it with 255.. but to get it back I have to do some signing or something..
  18. Tch UGH. olol...
  19. 12) ST8 VALUE, REGISTER         | 0x0C             |1st Value Byte  | 0x00 ->0x0c    | //Stores the value padded to only 1 byte in Register
  20. 13) ST8 VALUE, $REGISTER       | 0x0D            |1st Value Byte  | 0x00 ->0x0c     | //Stores the value padded to only 1 byte in the address the Register Points to
  21. 14) ST16 VALUE, REGISTER       | 0x0E             | 1st Value Byte | 2nd Value Byte | 0x00 ->0x0c | //Stores the 2 byte value in the register
  22. 15) ST16 Value, $REGISTER       | 0x0F             |1st Value Byte  | 2nd Value Byte | 0x00 ->0x0c | //Stores the 2 byte value in the address the $REGISTER points to as a 16 bit value
  23. 16) LD8 REGISTER, $ADDRESS | 0x10             | 0x00 ->0x0c    | 1st Addr Byte   | 2nd AddrByte|3rd AddrByte|4th Addr Byte| //Load the 8 bit value from the address into REGISTER
  24. 17) LD8 REGISTER, REGISTER   | 0x11             | 0x00 ->0x0c    | 0x00->0x0c      //Load the 8 bit value in REGISTER to REGISTER
  25.  
  26.  
  27. 18) LD16 REGISTER, $ADDRESS|0x12             | 0x00 ->0x0c    | 1st Addr Byte  | 2nd AddrByte| 3rd AddrByte|4th Addr Byte | //Load the 16 bit value from the $ADDRESS into REGISTER
  28. 19) LD16 REGISTER, REGISTER |0x13              | 0x00->0x0c     | 0x00 ->0x0c    | //Load the 16 bit value in REGISTER into REGISTER
  29. 20) CMP REGISTER, REGISTER  |0x14              | 0x00->0x0c     | 0x00 ->0x0c    | //Compares the values stored in R, R and saves a boolean result in the first bit of REGISTER F
  30. 21) CMP REGISTER, $REGISTER|0x15              | 0x00->0x0c     | 0x00 ->0x0c    | //Compares the value of REGISTER with the value in memory that $REGISTER points to, stores in 1st bit of F
  31. 22) CMP REGISTER, VALUE       |0x16              | 0x00->0x0c     |1st value byte   |2nd Val Byte | 3rd Val Byte   | 4th Val Byte| //Compares a hardcoded value to the value in a Register, stores result in 1st bit of F register.
  32. 23) CMP16 REGISTER, $REGISTER | 0x17        |0x00 ->0x0c    | 0x00->0x0c     | Compares a 16 bit value that $REGISTER points to, to a value in REGISTER
  33. 24) CMP8 REGISTER, $REGISTER   | 0x18        |0x00 ->0x0c    | 0x00->0x0c     | Compares an 8 bit value that $REGISTER points to, to a value in REGISTER
  34. 25) BEQ $ADDRESS                       | 0x19        | 1st Addr Byte | 2nd Addr Byte | 3rd Addr Byte | 4th Addr Byte //Branch if last comparison result was true, to the address listed
  35. 26) BEQ $REGISTER                       | 0x1A        |0x00 ->0x0c   Branch if last comparison result was true to the address in $REGISTER
  36.                                         //Which $REGISTER points to.
  37. 27) BNEQ $REGISTER                    | 0x1B        |0x00 ->0x0c   | //Branch if the last comparison result was not true, to the address in $REGISTER
  38. 28) BNEQ $ADDRESS                   | 0x1C         |1st Addr Byte| 2nd Addr Byte  | 3rd Addr Byte | 4th Addr Byte //Branch if last comparison result was false to addres listed
  39. 29) SUB $ADDRESS                      | 0x1D        |1st Addr Byte | 2nd Addr Byte  | 3rd Addr Byte | 4th Addr Byte //go to the subroutine of the address listed
  40. 30) SUB $REGISTER                      | 0x1E         |0x00 ->0x0c  | //Call the subroutine stored at the memory address that $REGISTER points to
  41. 31) RET                                         | 0x1F          | //Return to the previous address on the stack from a subroutine
  42. 32) JMP $REGISTER                      | 0x20         |0x00 ->0x0c | //Jump to the address stored in $REGISTER (does not allow return call will cause stack underflow if stack empty)
  43. 33) JMP $ADDRESS                      |0x21          |1st Addr Byte| 2nd Addr Byte | 3rd Addr Byte  | 4th Addr Byte //Jumps to the address that's hardcoded here
  44.  
  45.  
  46. 34) OR REGISTER, VALUE             |0x22          |0x00->0x0c  | 1st Value Byte | 2nd Value Byte | 3rd Value Byte | 4th Value Byte // Performs a bitewise OR on the two inputs, the result stored in REGISTER
  47. 35) OR REGISTER, $REGISTER     |0x23           |0x00 ->0x0c | 0x00->0x0c|    //Peforms Bitewise OR on REGISTER and the value in the memory address $REGISTER points to and the result is stored in REGISTER
  48. 36) AND REGISTER, VALUE          |0x24           |0x00->0x0c |1st value Byte| 2nd Value Byte | 3rd Value Byte | 4th Value Byte //Performs bitwise AND on two inputs
  49. 37) AND REGISTER, $REGISTER   |0x25           |0x00->0x0c | 0x00->0x0c   | //Performs Bitwise AND on REGISTER and the value in memory address $REGISTER points to and the result is stored in REGISTER
  50. 38) XOR REGISTER, VALUE           |0x26          |0x00->0x0c | 1st Value Byte | 2nd Value Byte | 3rd value Byte|4th Value Byte //Performs bitwise XOR on two Inputs result is stored in REGISTER
  51. 39) XOR REGISTER, $REGISTER    |0x27          |0x00->0x0c | 0x00->0x0c    | //Performs bitwise XOR on REGISTER and the value in memory address $REGISTER points to and the result is
  52. stored in REGISTER
RAW Paste Data
We use cookies for various purposes including analytics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy. OK, I Understand
 
Top