---
title: "算术"
description: "整数与浮点基本运算 opcode"
---
---
title: 算术
description: 整数与浮点基本运算 opcode
---
`sa` · 扩展 `CLEO` · 需 CLEO
整数 / 浮点基本运算。Lua 里多数可直接用 `+ - * /`；下列为对应 opcode。
写法见 [Lua](/docs/cleo/syntax) / [Redux](/docs/cleo/syntax-redux)。
## 整数加
两整数相加。
```text
0A8E INT_ADD
in: a, b
out: result
```
```lua
local r = intAdd(1, 2)
-- 或 r = 1 + 2
```
```js
const result = native("INT_ADD", a, b)
```
## 整数减
整数减法。
```text
0A8F INT_SUB
in: a, b
out: result
```
```lua
local r = intSub(5, 3)
```
```js
const result = native("INT_SUB", a, b)
```
## 整数乘
整数乘法。
```text
0A90 INT_MUL
in: a, b
out: result
```
```lua
local r = intMul(3, 4)
```
```js
const result = native("INT_MUL", a, b)
```
## 整数除
整数除法。
```text
0A91 INT_DIV
in: a, b
out: result
```
```lua
local r = intDiv(10, 2)
```
```js
const result = native("INT_DIV", a, b)
```
## 浮点乘
两浮点相乘。
```text
290B FLOAT_MUL
in: a, b
out: result
```
```lua
local r = floatMul(1.5, 2.0)
```
```js
const result = native("FLOAT_MUL", a, b)
```