WebApr 6, 2024 · In 8085 microprocessor, the flag register consists of 8 bits and only 5 of them are useful. The 5 flags are: Sign Flag (S) – After any operation if the MSB (B (7)) of the … WebJun 17, 2024 · In 8085,we've learned that the carry flag is SET,when the content of the memory exceeds that of the accumulator and that,comparison is always with respect to …
CMP—Compare Two Operands - GitHub Pages
WebMar 25, 2024 · The CMP instruction is another example of conditionals. A CMP instruction performs a subtract operation on both operands, and the status flags ZF … WebThe AAM instruction is only useful when it follows an MUL instruction that multiplies (binary multiplication) two unpacked BCD values and stores a word result in the AX register. The AAM instruction then adjusts the contents of the AX register to contain the correct 2-digit unpacked (base 10) BCD result. elvis site officiel
assembly - Understanding cmp instruction - Stack Overflow
WebInstruction Op/En 64-Bit Mode Compat/Leg Mode Description; A6: CMPS m8, m8: ZO: Valid: Valid: ... Flags Affected ¶ The CF, OF, SF, ZF, AF, and PF flags are set according to the temporary result of the comparison. ... Virtual-8086 Mode Exceptions ¶ #GP(0) If a memory operand effective address is outside the CS, DS, ES, FS, or GS segment limit ... http://service.scs.carleton.ca/sivarama/asm_book_web/Student_copies/ch6_arithmetic.pdf Web- Flag –Control Instruction: The 8086 microprocessor has a set of flags that either monitors the state of executing instructions or controls options available in its operation. The instruction set includes a group of instructions that. when executed, directly affect the state of the flags. These instructions, shown in Fig. (a). ford keyless remote battery replacement