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One goal of EPIC was to move the complexity of instruction scheduling from the CPU hardware to the software compiler, which can do the instruction scheduling statically (with help of trace feedback information). This eliminates the need for complex scheduling circuitry in the CPU, which frees up space and power for other functions, including ...
Very long instruction word (VLIW) refers to instruction set architectures that are designed to exploit instruction-level parallelism (ILP). A VLIW processor allows programs to explicitly specify instructions to execute in parallel, whereas conventional central processing units (CPUs) mostly allow programs to specify instructions to execute in sequence only.
Further advancement of compiler and memory technologies leads to emerging very long instruction word (VLIW) processors, where the compiler controls the schedule of instructions and handles data hazards. NISC is a successor of VLIW processors. In NISC, the compiler has both horizontal and vertical control of the operations in the datapath.
VLIW is a computer architecture concept (like RISC and CISC) where a single instruction word contains multiple instructions encoded in one very long instruction word to facilitate the processor executing multiple instructions in each clock cycle. Typical VLIW implementations rely heavily on sophisticated compilers to determine at compile time ...
A MMU was also added so the ST231 can be used as a host processor. In digital video, STM reported in 2009 that it had shipped over 40 million systems-on-chip (SoCs) containing a VLIW processor from the ST200 family. Since many of these SoCs contain multiple ST200s (the STi7200 contains four ST231s), they actually shipped in excess of 70 million ...
In-order execution, 128-bit VLIW, integrated memory controller Efficeon: 2004 In-order execution, 256-bit VLIW, fully integrated memory controller Cyrix Cx5x86: 1995 6 [3] Branch prediction Cyrix 6x86: 1996 Superscalar, superpipelined, register renaming, speculative execution, out-of-order execution DLX: 5 eSi-3200: 5 In-order, speculative ...
Atanasoff–Berry computer, the first computer with parallel processing [1] Instruction-level parallelism (ILP) is the parallel or simultaneous execution of a sequence of instructions in a computer program. More specifically, ILP refers to the average number of instructions run per step of this parallel execution. [2]: 5
Other CPU designs include some multiple instructions for vector processing on multiple (vectorized) data sets, typically known as MIMD (Multiple Instruction, Multiple Data) and realized with VLIW (Very Long Instruction Word) and EPIC (Explicitly Parallel Instruction Computing). The Fujitsu FR-V VLIW/vector processor combines both technologies.