The PicoRV32 is a CPU core that implements the RISC-V RV32IMC Instruction Set. The second table is about the 32-bit RISC-V instruction formats (click on the image to enlarge) 32-bit RISC-V instruction formatsįor the following implementation we use the PicoRV32 core from this github repository: Standard Extension for User-Level Interrupts Standard Extension for Packed-SIMD Instructions Standard Extension for Transactional Memory Standard Extension for Dynamically Translated Languages Standard Extension for Compressed Instructions Standard Extension for Decimal Floating-Point Standard Extension for Quad-Precision Floating-Point Shorthand for the base integer set (I) and above extensions (MAFD) Standard Extension for Double-Precision Floating-Point Standard Extension for Single-Precision Floating-Point Standard Extension for Atomic Instructions Standard Extension for Integer Multiplication and Division The first table tells us more about the ISA base and the optional extensions: ISA base and extensions (20191213) Nameīase Integer Instruction Set (embedded), 32-bit, 16 registers (no hardware breakpoints)īefore we start, we have a look at two helpful tables that tell us more about the RISC-V architecture and this post will refer to these tables several times.
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