Hello all, I have a question regarding CPU instruction sets. I have heard that the aging x86 instruction set is holding back progress, so to speak. So I was thinking about what would make a better ...

C68K_ISS is a transaction-level model of C68000_OCDS IP-core. It was developed to be the Instruction-Set Simulator of the original CPU. Main assumptions for the ISS were: Developed in pure C++ ...

An Instruction Set Architecture (ISA) defines the software interface through which for example a central processor unit (CPU) is controlled. Unlike early computer systems which didn’t define a ...

This is the set of instructions that the CPU is built to understand and execute. Some of the most common ISAs are x86, MIPS, ARM, RISC-V, and PowerPC.

SAN JOSE, Calif. — The Power.org group has announced updates to the instruction set used on the Power processor, providing new features for both servers and embedded systems. The upgrades also aim to ...

For example, we probably need ADD, OR, and XOR, but we can get by without a NOT instruction because we can achieve a “pseudo-NOT” by XOR-ing with all 1s. Similarly, we don’t need NAND or NOR, because ...

This paper presents an instruction set simulator of an 8-bit, MCS-51 compatible CPU core, and shows how to use it in embedded software development process; Method to control and debug CPU using ...

So in this case, often only using 12 out of 40 instruction bits is quite inefficient. A better architecture might use 4 bits to select “condition”, and then 6+6 for the register numbers.

The S5000 software-configurable processor family combines the flexibility of the compilable Tensilica Xtensa RISC processor core and the programmable Stretch instruction-set extension fabric (ISEF ...

Now Loongson is trying something new: rather than adopt RISC-V, ARM, or x86 architecture, the company has developed its own ISA (instruction set architecture) called LoongArch. HKEPC ...