sanbuphy
f44c842fe7
- Refactor frontend framework demo descriptions for clarity - Remove interactive features from triad and field map demos - Add new computer organization and DSL documentation links - Split type systems and compilers into separate pages - Enhance power-on-to-web article with relay race analogy - Add new interactive demos for type systems and compilation - Improve visual presentation of boot process and hardware flow - Introduce new Vibe Coding flow demo component
484 lines
12 KiB
Vue
484 lines
12 KiB
Vue
<template>
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<div class="psw-demo">
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<div class="demo-header">
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<span class="title">程序状态字 (PSW)</span>
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<span class="subtitle">CPU 的"状态指示灯"</span>
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</div>
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<div class="flags-layout">
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<div class="flags-grid">
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<div v-for="flag in flags" :key="flag.name" class="flag-card" :class="{ active: flag.value === 1 }" @click="toggleFlag(flag)">
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<div class="flag-name">{{ flag.name }}</div>
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<div class="flag-value">{{ flag.value }}</div>
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<div class="flag-fullname">{{ flag.fullName }}</div>
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</div>
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</div>
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</div>
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<div class="flag-details" v-if="selectedFlag">
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<div class="details-header">
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<span class="flag-title">{{ selectedFlag.name }} - {{ selectedFlag.fullName }}</span>
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</div>
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<div class="details-content">
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<div class="detail-row">
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<span class="detail-label">英文名：</span>
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<span class="detail-value">{{ selectedFlag.english }}</span>
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</div>
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<div class="detail-row">
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<span class="detail-label">作用：</span>
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<span class="detail-value">{{ selectedFlag.description }}</span>
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</div>
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<div class="detail-row">
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<span class="detail-label">设置条件：</span>
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<span class="detail-value">{{ selectedFlag.setCondition }}</span>
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</div>
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<div class="detail-row">
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<span class="detail-label">用途：</span>
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<span class="detail-value">{{ selectedFlag.usage }}</span>
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</div>
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</div>
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</div>
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<div class="operation-demo">
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<div class="demo-title">运算结果对标志位的影响</div>
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<div class="operation-panel">
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<div class="operand-inputs">
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<div class="input-group">
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<label>操作数 A：</label>
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<input type="number" v-model.number="operandA" class="num-input" />
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</div>
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<div class="input-group">
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<label>操作数 B：</label>
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<input type="number" v-model.number="operandB" class="num-input" />
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</div>
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</div>
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<div class="operation-buttons">
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<button class="op-btn" @click="calculate('ADD')">A + B</button>
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<button class="op-btn" @click="calculate('SUB')">A - B</button>
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<button class="op-btn" @click="calculate('AND')">A AND B</button>
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<button class="op-btn" @click="calculate('OR')">A OR B</button>
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</div>
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<div class="result-display">
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<div class="result-label">运算结果：</div>
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<div class="result-value">{{ result }}</div>
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</div>
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<div class="flags-result">
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<div class="result-flags">
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<span v-for="f in flags" :key="f.name" :class="['result-flag', f.value === 1 ? 'set' : 'clear']">
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{{ f.name }}:{{ f.value }}
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</span>
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</div>
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</div>
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</div>
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</div>
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<div class="psw-usage">
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<div class="usage-title">标志位的典型用途</div>
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<div class="usage-grid">
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<div class="usage-card">
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<div class="usage-icon">🔀</div>
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<div class="usage-name">条件跳转</div>
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<div class="usage-desc">JE (相等跳转)、JNE、JG、JL 等指令根据 ZF、SF、OF 决定是否跳转</div>
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</div>
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<div class="usage-card">
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<div class="usage-icon">➕</div>
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<div class="usage-name">算术运算</div>
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<div class="usage-desc">多位数运算需要 CF 判断进位，OF 判断溢出</div>
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</div>
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<div class="usage-card">
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<div class="usage-icon">🔄</div>
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<div class="usage-name">循环控制</div>
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<div class="usage-desc">循环指令使用 ZF 判断循环结束条件</div>
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</div>
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</div>
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</div>
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</div>
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</template>
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<script setup>
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import { ref } from 'vue'
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const selectedFlag = ref(null)
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const operandA = ref(10)
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const operandB = ref(5)
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const result = ref(0)
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const flags = ref([
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{ name: 'CF', fullName: '进位标志', english: 'Carry Flag', value: 0,
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description: '无符号数运算产生进位或借位时置 1',
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setCondition: '加法产生进位，或减法产生借位',
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usage: '多位数无符号运算、循环计数' },
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{ name: 'PF', fullName: '奇偶标志', english: 'Parity Flag', value: 0,
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description: '结果的低 8 位中 1 的个数为偶数时置 1',
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setCondition: '结果低 8 位有偶数个 1',
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usage: '数据通信中的错误检测' },
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{ name: 'AF', fullName: '辅助进位', english: 'Auxiliary Carry Flag', value: 0,
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description: '低 4 位产生进位或借位时置 1',
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setCondition: '第 3 位（低 4 位）产生进位',
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usage: 'BCD 码运算调整' },
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{ name: 'ZF', fullName: '零标志', english: 'Zero Flag', value: 0,
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description: '运算结果为 0 时置 1',
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setCondition: '结果 = 0',
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usage: '条件跳转、循环控制、比较操作' },
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{ name: 'SF', fullName: '符号标志', english: 'Sign Flag', value: 0,
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description: '运算结果为负数时置 1（等于结果最高位）',
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setCondition: '结果最高位 = 1（负数）',
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usage: '有符号数大小比较、负数判断' },
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{ name: 'TF', fullName: '陷阱标志', english: 'Trap Flag', value: 0,
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description: '置 1 时 CPU 进入单步调试模式',
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setCondition: '软件设置',
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usage: '程序调试' },
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{ name: 'IF', fullName: '中断标志', english: 'Interrupt Flag', value: 1,
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description: '置 1 时 CPU 响应可屏蔽中断',
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setCondition: '软件设置',
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usage: '中断开关' },
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{ name: 'DF', fullName: '方向标志', english: 'Direction Flag', value: 0,
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description: '置 1 时字符串操作从高地址向低地址',
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setCondition: '软件设置',
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usage: '字符串操作方向控制' },
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{ name: 'OF', fullName: '溢出标志', english: 'Overflow Flag', value: 0,
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description: '有符号数运算结果超出表示范围时置 1',
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setCondition: '正溢出或负溢出',
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usage: '有符号数运算、溢出检测' }
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])
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const toggleFlag = (flag) => {
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flag.value = flag.value === 1 ? 0 : 1
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selectedFlag.value = flag
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}
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const calculate = (op) => {
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let res = 0
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if (op === 'ADD') {
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res = operandA.value + operandB.value
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const unsignedMax = Math.pow(2, 32)
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const signedMin = -Math.pow(2, 31)
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const signedMax = Math.pow(2, 31) - 1
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flags.value.find(f => f.name === 'CF').value = res >= unsignedMax ? 1 : 0
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flags.value.find(f => f.name === 'OF').value = (res > signedMax || res < signedMin) ? 1 : 0
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flags.value.find(f => f.name === 'ZF').value = res === 0 ? 1 : 0
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flags.value.find(f => f.name === 'SF').value = res < 0 ? 1 : 0
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const low8 = res & 0xFF
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const ones = (low8.toString(2).match(/1/g) || []).length
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flags.value.find(f => f.name === 'PF').value = ones % 2 === 0 ? 1 : 0
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flags.value.find(f => f.name === 'AF').value = ((operandA.value & 0xF) + (operandB.value & 0xF)) >= 16 ? 1 : 0
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} else if (op === 'SUB') {
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res = operandA.value - operandB.value
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flags.value.find(f => f.name === 'CF').value = operandA.value < operandB.value ? 1 : 0
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flags.value.find(f => f.name === 'OF').value = (operandA.value > 0 && operandB.value < 0 && res < 0) || (operandA.value < 0 && operandB.value > 0 && res > 0) ? 1 : 0
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flags.value.find(f => f.name === 'ZF').value = res === 0 ? 1 : 0
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flags.value.find(f => f.name === 'SF').value = res < 0 ? 1 : 0
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const low8 = res & 0xFF
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const ones = (low8.toString(2).match(/1/g) || []).length
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flags.value.find(f => f.name === 'PF').value = ones % 2 === 0 ? 1 : 0
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flags.value.find(f => f.name === 'AF').value = ((operandA.value & 0xF) - (operandB.value & 0xF)) < 0 ? 1 : 0
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} else if (op === 'AND') {
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res = operandA.value & operandB.value
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flags.value.find(f => f.name === 'CF').value = 0
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flags.value.find(f => f.name === 'OF').value = 0
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flags.value.find(f => f.name === 'ZF').value = res === 0 ? 1 : 0
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flags.value.find(f => f.name === 'SF').value = (res & 0x80000000) !== 0 ? 1 : 0
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const low8 = res & 0xFF
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const ones = (low8.toString(2).match(/1/g) || []).length
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flags.value.find(f => f.name === 'PF').value = ones % 2 === 0 ? 1 : 0
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} else if (op === 'OR') {
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res = operandA.value | operandB.value
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flags.value.find(f => f.name === 'CF').value = 0
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flags.value.find(f => f.name === 'OF').value = 0
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flags.value.find(f => f.name === 'ZF').value = res === 0 ? 1 : 0
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flags.value.find(f => f.name === 'SF').value = (res & 0x80000000) !== 0 ? 1 : 0
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const low8 = res & 0xFF
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const ones = (low8.toString(2).match(/1/g) || []).length
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flags.value.find(f => f.name === 'PF').value = ones % 2 === 0 ? 1 : 0
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}
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result.value = res
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}
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</script>
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<style scoped>
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.psw-demo {
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background: linear-gradient(135deg, #f0fdfa 0%, #ccfbf1 100%);
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border-radius: 12px;
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padding: 20px;
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margin: 16px 0;
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}
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.demo-header {
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display: flex;
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align-items: center;
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gap: 12px;
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margin-bottom: 20px;
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}
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.title {
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font-size: 18px;
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font-weight: 700;
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color: #1e293b;
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}
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.subtitle {
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font-size: 13px;
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color: #64748b;
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margin-left: auto;
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}
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.flags-grid {
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display: grid;
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grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
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gap: 8px;
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margin-bottom: 16px;
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}
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.flag-card {
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padding: 12px;
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background: white;
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border: 2px solid #e2e8f0;
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border-radius: 8px;
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text-align: center;
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cursor: pointer;
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transition: all 0.2s;
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}
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.flag-card:hover {
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border-color: #14b8a6;
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}
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.flag-card.active {
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border-color: #14b8a6;
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background: #f0fdfa;
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}
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.flag-name {
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font-size: 16px;
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font-weight: 700;
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color: #1e293b;
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}
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.flag-value {
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font-size: 24px;
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font-weight: 700;
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color: #64748b;
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margin: 4px 0;
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}
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.flag-card.active .flag-value {
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color: #14b8a6;
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}
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.flag-fullname {
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font-size: 10px;
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color: #64748b;
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}
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.flag-details {
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background: white;
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border-radius: 8px;
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padding: 16px;
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margin-bottom: 16px;
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}
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.details-header {
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margin-bottom: 12px;
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padding-bottom: 8px;
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border-bottom: 2px solid #f3f4f6;
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}
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.flag-title {
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font-size: 16px;
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font-weight: 600;
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color: #1e293b;
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}
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.details-content {
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display: flex;
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flex-direction: column;
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gap: 8px;
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}
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.detail-row {
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display: flex;
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gap: 8px;
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}
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.detail-label {
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font-size: 12px;
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font-weight: 600;
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color: #64748b;
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min-width: 80px;
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}
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.detail-value {
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font-size: 12px;
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color: #1e293b;
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}
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.operation-demo {
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background: white;
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border-radius: 8px;
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padding: 16px;
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margin-bottom: 16px;
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}
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.demo-title {
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font-size: 14px;
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font-weight: 600;
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color: #1e293b;
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margin-bottom: 12px;
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}
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.operand-inputs {
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display: flex;
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gap: 16px;
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margin-bottom: 12px;
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}
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.input-group {
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display: flex;
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align-items: center;
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gap: 8px;
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}
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.input-group label {
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font-size: 12px;
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color: #475569;
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}
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.num-input {
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width: 80px;
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padding: 6px 10px;
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border: 1px solid #e2e8f0;
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border-radius: 4px;
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font-size: 14px;
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}
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.operation-buttons {
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display: flex;
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gap: 8px;
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margin-bottom: 12px;
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}
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.op-btn {
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padding: 8px 16px;
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background: #14b8a6;
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color: white;
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border: none;
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border-radius: 6px;
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cursor: pointer;
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font-size: 13px;
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}
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.result-display {
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display: flex;
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align-items: center;
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gap: 12px;
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margin-bottom: 12px;
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padding: 12px;
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background: #f8fafc;
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border-radius: 6px;
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}
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.result-label {
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font-size: 14px;
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font-weight: 600;
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color: #1e293b;
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}
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.result-value {
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font-size: 20px;
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font-weight: 700;
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color: #14b8a6;
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}
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.flags-result {
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padding: 12px;
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background: #f8fafc;
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border-radius: 6px;
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}
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.result-flags {
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display: flex;
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flex-wrap: wrap;
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gap: 8px;
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}
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.result-flag {
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padding: 4px 10px;
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border-radius: 4px;
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font-size: 12px;
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font-weight: 600;
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}
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.result-flag.set {
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background: #dcfce7;
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color: #16a34a;
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}
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.result-flag.clear {
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background: #f1f5f9;
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color: #64748b;
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}
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.psw-usage {
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background: white;
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border-radius: 8px;
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padding: 16px;
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}
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.usage-title {
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font-size: 14px;
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font-weight: 600;
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color: #1e293b;
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margin-bottom: 12px;
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}
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.usage-grid {
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display: grid;
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grid-template-columns: repeat(3, 1fr);
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gap: 12px;
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}
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.usage-card {
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padding: 12px;
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background: #f8fafc;
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border-radius: 8px;
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text-align: center;
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}
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.usage-icon {
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font-size: 24px;
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margin-bottom: 8px;
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}
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.usage-name {
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font-size: 13px;
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font-weight: 600;
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color: #1e293b;
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margin-bottom: 4px;
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}
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.usage-desc {
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font-size: 10px;
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color: #64748b;
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}
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</style>
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