prouvinevgosin.ml Gursharan Singh Tatla. Page 1 of 6. OPCODES TABLE OF INTEL Opcodes of Intel in Alphabetical Order. Sr. No. Mnemonics. Opcode Sheet for Microprocessor With Description - Download as Word Doc .doc /.docx), PDF File .pdf), Text File .txt) or read online. Microprocessor Opcode Table - Download as PDF File .pdf), Text File .txt) or read online. It is a very useful table for mostly the engineering students who.
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The sign flag is set if the result has a negative sign i. The auxiliary or half carry flag is set if a carry-over from bit 3 to bit 4 occurred.
The parity flag is set according to the parity odd or even of the accumulator. The zero flag is set if the result of the operation was 0.
Lastly, the carry flag is set if a carry-over from bit 7 of the accumulator the MSB occurred. Some of them are followed by one or two bytes of data, which can be an immediate operand, a memory address, or a port number. A NOP "no operation" instruction exists, but does not modify any of the registers or flags. Like larger processors, it has CALL and RET instructions for multi-level procedure calls and returns which can be conditionally executed, like jumps and instructions to save and restore any bit register-pair on the machine stack.
There are also eight one-byte call instructions RST for subroutines located at the fixed addresses 00h, 08h, 10h, These are intended to be supplied by external hardware in order to invoke a corresponding interrupt-service routine, but are also often employed as fast system calls. One sophisticated instruction is XTHL, which is used for exchanging the register pair HL with the value stored at the address indicated by the stack pointer. For two-operand 8-bit operations, the other operand can be either an immediate value, another 8-bit register, or a memory cell addressed by the bit register pair HL.
The only 8-bit ALU operations that can have a destination other than the accumulator are the unary incrementation or decrementation instructions, which can operate on any 8-bit register or on memory addressed by HL, as for two-operand 8-bit operations.
Direct copying is supported between any two 8-bit registers and between any 8-bit register and a HL-addressed memory cell, using the MOV instruction. No file text available. The three timers in. See AN for more information. Cross Reference Interfacing Examples between Zarlink. Due to its RDY response requirements, the cannot run without wait states. Cross Reference Interfacing Examples between Mitel. Semiconductor Components ,. Please refer to device data sheet for actual part marking.
The interrupts are arranged in a , are disabled. DAD rp. Add register paid to H-L pair. SUB r. Subtract register from accumulator.
SUB M. Subtract memory from accumulator. SBB r. Subtract register from accumulator with borrow.
SBB M. Subtract memory from accumulator with borrow. SUI data. SBI data.
Subtract immediate data from accumulator with borrow. INR M. DCR r. Decrement register content.
DCR M. INX rp. DAA Decimal adjust accumulator. The DAA instruction operates on this result and gives the final result in the decimal system. It uses carry and auxiliary carry for decimal adjustment. Similarly, 6 is also added to 4 MSBs of the content of the accumulator if their value lies in between A and F or the CS flag is set to 1.
All status flags are affected. When DAA is used data should be in decimal numbers. Logical Group ANA r.
ANA M. AND memory with accumulator.