Microprocessor-8085-branching-instructions
マイクロプロセッサ-8085分岐命令
次の表に、分岐命令のリストとその意味を示します。
| Opcode | Operand | Meaning | Explanation |
|---|---|---|---|
| JMP | 16-bit address | Jump unconditionally | The program sequence is transferred to the memory address given in the operand. |
|Opcode |Description |Flag Status |JC |Jump on Carry |CY=1 |JNC |Jump on no Carry |CY=0 |JP |Jump on positive |S=0 |JM |Jump on minus |S=1 |JZ |Jump on zero |Z=1 |JNZ |Jump on no zero |Z=0 |JPE |Jump on parity even |P=1 |JPO |Jump on parity odd |P=0
| 16-bit address | Jump conditionally | The program sequence is transferred to the memory address given in the operand based on the specified flag of the PSW. |
|Opcode |Description |Flag Status |CC |Call on Carry |CY=1 |CNC |Call on no Carry |CY=0 |CP |Call on positive |S=0 |CM |Call on minus |S=1 |CZ |Call on zero |Z=1 |CNZ |Call on no zero |Z=0 |CPE |Call on parity even |P=1 |CPO |Call on parity odd |P=0
| 16-bit address | Unconditional subroutine call | The program sequence is transferred to the memory address given in the operand. Before transferring, the address of the next instruction after CALL is pushed onto the stack. | RET | None | Return from subroutine unconditionally | The program sequence is transferred from the subroutine to the calling program. |
|Opcode |Description |Flag Status |RC |Return on Carry |CY=1 |RNC |Return on no Carry |CY=0 |RP |Return on positive |S=0 |RM |Return on minus |S=1 |RZ |Return on zero |Z=1 |RNZ |Return on no zero |Z=0 |RPE |Return on parity even |P=1 |RPO |Return on parity odd |P=0
| None | Return from subroutine conditionally | The program sequence is transferred from the subroutine to the calling program based on the specified flag of the PSW and the program execution begins at the new address. | PCHL | None | Load the program counter with HL contents | The contents of registers H & L are copied into the program counter. The contents of H are placed as the high-order byte and the contents of L as the loworder byte. | RST | 0-7 | Restart | The RST instruction is used as software instructions in a program to transfer the program execution to one of the following eight locations. |
|Instruction |Restart Address |RST 0 |0000H |RST 1 |0008H |RST 2 |0010H |RST 3 |0018H |RST 4 |0020H |RST 5 |0028H |RST 6 |0030H |RST 7 |0038H
|
8085にはさらに4つの割り込みがあります。これは、RST命令を内部で生成でき、外部ハードウェアを必要としません。 以下は、それらの指示とその再起動アドレスです- [cols=",",] |
|Interrupt |Restart Address |TRAP |0024H |RST 5.5 |002CH |RST 6.5 |0034H |RST 7.5 |003CH
