【Solidity Yul Assembly】4.3 | What We Didn't Cover

虽然在之前的课中我们已经涵盖了 Yul 的大部分常用指令，但这次我们会简要介绍那些使用频率较低的指令，为本系列课程画上句号。 | 指令 | 描述 | |---------------------|-----------------------------------------------------------------------------------------------| | `sdiv(x, y)` | `x / y`, for signed numbers in two’s complement, 0 if `y == 0` | | `smod(x, y)` | `x % y`, for signed numbers in two’s complement, 0 if `y == 0` | | `slt(x, y)` | 1 if `x < y`, 0 otherwise, for signed numbers in two’s complement | | `sgt(x, y)` | 1 if `x > y`, 0 otherwise, for signed numbers in two’s complement | | `sar(x, y)` | signed arithmetic shift right `y` by `x` bits | | `signextend(i, x)` | sign extend from `(i*8+7)th` bit counting from least significant | | `addmod(x, y, m)` | `(x + y) % m` with arbitrary precision arithmetic, 0 if `m == 0` | | `mulmod(x, y, m)` | `(x * y) % m` with arbitrary precision arithmetic, 0 if `m == 0` | | `byte(n, x)` | `nth` byte of `x`, where the most significant byte is the 0th byte | | `stop()` | stop execution, identical to `return(0, 0)` | | `invalid()` | end execution with invalid instruction | ### 1. `sdiv(x, y)` - 执行有符号整数除法，适用于二进制补码形式的有符号数。 - 若 `y == 0`，结果返...