The vector integer move instructions copy a source operand to a vector register group. The vmv.v.v variant copies a vector register group, whereas the vmv.v.x and vmv.v.i variants splat a scalar register or immediate to all active elements of the destination vector register group. These instructions are encoded as unmasked instructions (vm=1). The ?rst operand speci?er (vs2) must contain v0, and any other vector register number in vs2 is reserved 、
时间: 2024-03-07 16:51:11 浏览: 16
向量整数移动指令将源操作数复制到向量寄存器组。vmv.v.v变体将向量寄存器组复制,而vmv.v.x和vmv.v.i变体将标量寄存器或立即数分别复制到目标向量寄存器组的所有活动元素。这些指令被编码为未屏蔽指令(vm=1)。第一个操作数指示器(vs2)必须包含v0,而vs2中的任何其他向量寄存器号都是保留的。
相关问题
Write a single C statement that corresponds to the two RISC-V assembly instructions below: add f.g.h add f,i,f
C statement:
```c
f = g + h + i;
```
Explanation:
The RISC-V assembly instructions:
```assembly
addw x5, x6, x7 # 将 g 和 h 相加并将结果放入 x5 寄存器(f)
addw x5, x5, x8 # 将 f 和 i 相加并将结果放入 x5 寄存器(f)
```
The above RISC-V assembly instructions calculate the sum of `g`, `h` and `i`, and store the result in register `x5` (which corresponds to the C variable `f`).
The equivalent C statement is simply `f = g + h + i;`.
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