SSaguninsagunwrites.hashnode.dev·Aug 20 · 4 min readWhat Is an Operating System?An Operating System (OS) is system software that manages a computer's hardware and software resources and provides an environment for applications to run. When you turn on a computer, many components 00
SSaguninsagunwrites.hashnode.dev·Aug 16 · 7 min readRelative Addressing ModeIn the previous article, we learned about Indirect Addressing, where the instruction leads to an address that contains the actual address of the operand. Now we'll learn about Relative Addressing Mode00
SSaguninsagunwrites.hashnode.dev·Aug 16 · 6 min readBase Register Addressing ModeIn the previous article, we learned about Relative Addressing, where the CPU calculates an address using a reference address and an offset. Now we'll learn about Base Register Addressing. This address00
SSaguninsagunwrites.hashnode.dev·Aug 16 · 6 min readIndexed Addressing ModeIn the previous article, we learned about Base Register Addressing, where the CPU combines a base address with an offset to find the effective address. Now we'll learn about Indexed Addressing Mode, w00
SSaguninsagunwrites.hashnode.dev·Aug 16 · 6 min readRegister Indirect Addressing ModeIn the previous article, we learned about Register Addressing, where the operand is stored directly inside a CPU register. Now we're going one level deeper. In Register Indirect Addressing, the regist00
SSaguninsagunwrites.hashnode.dev·Aug 16 · 5 min readRegister Addressing ModeIn the previous article, we learned about Immediate Addressing Mode, where the operand value is included directly inside the instruction. Now we'll look at another common addressing mode: Register Add00
SSaguninsagunwrites.hashnode.dev·Aug 16 · 9 min readAddressing ModesA CPU instruction tells the processor what operation to perform. But when an instruction needs data, another question appears: Where is that data located? The method used by an instruction to specify 00
SSaguninsagunwrites.hashnode.dev·Aug 16 · 7 min readTypes of CPU OrganizationThe CPU is responsible for executing instructions and processing data. But CPUs don't all organize their registers, operands, and data paths in the same way. Different designs use different methods to00
SSaguninsagunwrites.hashnode.dev·Aug 16 · 6 min readIndirect Addressing ModeIn the previous article, we learned about Direct Addressing, where the instruction directly contains the memory address of the operand. Now we'll take one extra step. In Indirect Addressing, the addre00
SSaguninsagunwrites.hashnode.dev·Aug 16 · 6 min readDirect Addressing ModeIn the previous article, we learned how Auto-Increment and Auto-Decrement Addressing can automatically modify a register while accessing memory. Now we'll look at Direct Addressing Mode, where the mem00
