WebInit8085 : Allocates memory for the processor and prepares the simulator for execution by reading memory state data from dumped file if present. getOpcode : Searches in the mnemonics files and returns the … WebMar 25, 2024 · Although the PSW register is 8 bits wide, only 6 bits of it are used by the 8051. Carry Flag (CY) : Carry is generated when performing n bit operations and the result is more than n bits. Then this flag becomes set i.e. 1, otherwise, it becomes reset i.e. 0. During subtraction (A - B), if A > B it becomes reset, and if (A < B) it becomes set.
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WebFeb 3, 2024 · Methods that work without the need for a register with a known value, or without any free registers at all are preferred, but if a better method is available when those or other assumptions are true it is also worth mentioning. performance assembly x86 x86-64 micro-optimization Share Follow edited Feb 3, 2024 at 3:17 asked Feb 3, 2024 at 2:04 WebMay 20, 2024 · AC flag in 8085 or auxiliary carry flag Will set the auxiliary carry flag only if there is a carry from the 3rd bit to 4th bit. Carry flag in 8085 – (CY) If a carry is produce after the execution of an arithmetic instruction then we will set the carry flag to … highwave autodogmug portable dog water bottle
Microprocessor – Short Questions And Answers Set-19
WebMar 2, 2024 · Correct Answer - Option 3 : the zero flag is set Concept: In 8085 Instruction, XRA is a mnemonic that stands for “eXclusive OR Accumulator” and “R” stands for any of the following registers, or memory location M pointed by HL pair. WebJun 16, 2024 · If Intel really produced some (buggy) 8085 ICs resulting in CY=0, Intel would have corrected this bug in ICs produced later! So you will definitely find real 8085 ICs … Web9. If the 8085 adds 87H and 79H, specify the contents of the accumulator and the status of the S, Z, and CY flag? The sum of 87H and 79H=100H. Therefore, the accumulator will have 00H, and the flags will be S=0, Z=1, CY=1. 10. Write down the control and status signals? Two control signals and three status signals Control signals: RD and WR small slim console table