add_directed_instr_stream

CodeArtifact

add_directed_instr_stream is a function referenced in the riscv-dv riscv_asm_program_gen flow. The available evidence describes it as participating in selection of directed-instruction stream ratios during RISC-V assembly program generation, with an example log adding a riscv_jal_instr stream at a 30/1000 ratio.

First seen 5/26/2026

Last seen 5/28/2026

Evidence 1 chunks

Wiki v1

WIKI

Overview

add_directed_instr_stream is a code artifact referenced in the riscv_asm_program_gen.sv assembly-program generation flow used by the open-source CHIPS Alliance riscv-dv random instruction generator for RISC-V processor verification. The surrounding riscv_asm_program_gen class is described as generating complete RISC-V assembly programs, including initialization, instruction, data, stack, page-table, interrupt, and exception-handling sections. [C1]

Role in program generation

READ FULL ARTICLE →

NEIGHBORHOOD

No graph connections found for this entity yet. It may appear in future ingestion runs.

explore full graph →

RELATIONSHIPS

2 connections

riscv_asm_program_gen part of → 95% 2e

add_directed_instr_stream is a function within riscv_asm_program_gen called by gen_program.

gen_program ← uses 100% 2e

gen_program calls add_directed_instr_stream to set the ratio of instruction generation.

LINKED ENTITIES

4 links

riscv_asm_program_gen defined_or_used_within The evidence says add_directed_instr_stream is called in the riscv_asm_program_gen program-generation flow, and the example reporter message is from riscv_asm_program_gen.sv.

gen_program called_during_flow_of The evidence describes gen_program as the main function and states that in its flow get_directed_instr_stream is called and ratios are selected from add_directed_instr_stream.

get_directed_instr_stream associated_directed_stream_setup The evidence states that gen_program calls get_directed_instr_stream and selects the ratio of instruction generation from add_directed_instr_stream.

generate_directed_instr_stream precedes_or_configures_related_generation_step The evidence later describes generate_directed_instr_stream as deciding ratios, inserting directed streams, and randomizing instructions after earlier directed-stream setup involving add_directed_instr_stream.

CITATIONS

4 sources

4 citations — click to collapse

[1] riscv_asm_program_gen generates complete RISC-V assembly programs for riscv-dv verification flows, including sections such as initialization, instruction, data, stack, page table, interrupt, and exception handling. RISC-V source class riscv_asm_program_gen, the brain behind ...

[2] In the described gen_program flow, get_directed_instr_stream is called and the ratio of instruction generation is selected from add_directed_instr_stream. RISC-V source class riscv_asm_program_gen, the brain behind ...

[3] An example reporter message shows a directed instruction stream named riscv_jal_instr being added with ratio 30/1000 from riscv_asm_program_gen.sv. RISC-V source class riscv_asm_program_gen, the brain behind ...

[4] generate_directed_instr_stream is described as deciding ratios, inserting directed instruction streams, randomizing instructions, and selecting rs1, rs2, and rd based on instruction type. RISC-V source class riscv_asm_program_gen, the brain behind ...