liangkaiwang

V extension

18

Does the current version support the vector extension? I try running this: riscv64-unknown-elf-gcc main.c asm_func.s -o ./a.out -march=rv64gcv and getting this: Assembler messages: Error: cannot find default versions of the...

NaN input handling in vfmerge, vfmv, vfslide1up, and vfslide1down

5

Hi, For these floating point instructions (non-arithmetic type), do we check for input NaN-Boxing? Also, let's say if the scalar operand passes NaN-Boxing but it's a non-canonicalized NaN, do we...

[Question] fflags for vector floating point non-arithmetic instructions

3

Hi, In section 13.1, I see _13.1. Vector Floating-Point Exception Flags A vector floating-point exception at any active floating-point element sets the standard FP exception flags in the fflags register....

Load-Immediate Instructions

11

Hi, Is there any background info (slides/documentation) about the "Load-Immediate instruction" other than the texts in the commentary. Even though it probably does not cost hardware too much building this,...

Is vmsbc exactly the same as vmsltu with vm=1?

2

Hi all, I recently start reviewing some instructions, and it looks to me that the functionality of vmsbc can be replaced completely with the vmsltu and vm set to 1....

It looks like the brightness for the OS is pre-set to a level that is potentially harmful to kids when using at night. Normally, the brightness level can be changed...