RISC-V assembly - stack layout - function call
Dec 9, 2015 · Currently I am working with a RISC-V processor implementation. I need to run partially hand-crafted assembly code. (Finally there will be dynamic code injection.) For this purpose I have to underst...
riscv - Assembly what are data, .main and arr? - Stack Overflow
Nov 16, 2020 · Yes, all of it is assembly language. Note that assembly language is defined by the tool not the target. So gnu assembler (gas) for risc-v may vary from some other assembler for risc-v.
assembly - What is the definition of JAL in RISC-V and how does …
Oct 29, 2018 · the risc-v spec is quite clear as to how that instruction works, a whole paragraph on it. Nothing vague or misleading there, please post that paragraph in your question for everyone to see and describe what part you dont understand.
RISC-V: Implementing SLLI, SRLI and SRAI - Stack Overflow
Sep 14, 2016 · In RISC-V instruction set manual, the shift Immediate instructions: SLLI (Shift Left Logical Immediate). SRLI (Shift Right Logical Immediate). SRAI (Shift Right Arithmetic Immediate). It is mentioned in the manual Shifts by a constant are encoded as a specialization of the I-type format.
inline assembly - How to interact with RISC-V CSRs by using GCC …
Nov 20, 2019 · I'm new to RISC-V and low level C coding and I'm wondering how to manipulate the RISC-V CSRs using GCC C code. A read of a specific CSR (e.g. MISA) looks easy: csrr rd, 0x301 which is short for csrrs rd, 0x301, x0 can be done e.g. with
assembly - Venus RISC-V how to loop, compare, and print
Feb 6, 2020 · There are some issues with the code you have posted. I am trying to loop through an array and if the number is larger than X then print. I can't find any X symbol in your code. Do you mean K? la t0 K #set t0 to K The comment is wrong. You load the address of K into t0. If you want to get the value that is stored at that address into t0 you have to load the address into …
gnu assembler - How to write riscv CSR in an assembly macro …
I am trying to write a reuseable macro to configure some CSR's in assembly. E.g .macro initTrap entry, status, enable la t0, entry csrw mtvec, t0 csrwi mstatus, st...
How to output an integer to screen risc-v assembly
Apr 4, 2021 · The following is the assembly I have used in an attempt to print to console: global _start _start: addi a0, x0, 1 addi a1, x0, 42 addi a7, x0, 63 ecall addi a0, x0, 0 addi a...
assembly - RISCV Li instruction - Stack Overflow
May 25, 2023 · in RISCV assembly, "li" is an pseudoinstruction. I have this instruction: li t2, 0x1800 csrc mstatus, t2 The "li" is assembled into following 2 instruction. lui x7 2 addi x7 x7 -2048 My question , why 2 and -2048? and why "li" assembled into lui and addi? are there a document for this kind of behavior?
RISC-V how to use each lb, sa, li and how to properly use its syntax
Jan 30, 2022 · In RISC V assembly language, array index is done instead as pointer indexing, so with two steps, first: create a pointer variable (in a CPU register) that refers to the base address of the array, then perform pointer indexing.