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https://github.com/DragonOS-Community/DragonOS.git
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102 lines
2.3 KiB
C
102 lines
2.3 KiB
C
//
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// Created by longjin on 2022/1/20.
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//
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#include "common/glib.h"
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#include "common/printk.h"
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#include "exception/gate.h"
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#include "exception/trap.h"
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int *FR_address = (int *)0xffff800000a00000; //帧缓存区的地址
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void show_welcome()
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{
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/**
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* @brief 打印欢迎页面
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*
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*/
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printk("\n\n");
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for (int i = 0; i < 74; ++i)
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printk(" ");
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printk_color(0x00e0ebeb, 0x00e0ebeb, " \n");
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for (int i = 0; i < 74; ++i)
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printk(" ");
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printk_color(BLACK, 0x00e0ebeb, " Welcome to DragonOS ! \n");
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for (int i = 0; i < 74; ++i)
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printk(" ");
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printk_color(0x00e0ebeb, 0x00e0ebeb, " \n\n");
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}
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void test_printk()
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{
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//测试直接输出
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printk("\nTesting printk...\n");
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//测试输出单个字符
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printk("%c\n", 't');
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//测试输出字符串%s
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printk("%s\n", "xxx");
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//测试输出数字
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printk("%d %ld %lld\n", 1, 2, 3);
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//测试输出两个百分号
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printk("%%\n");
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//测试输出\t
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printk("\nTesting tab...\n");
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printk("date\t\tname\tscore\n");
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printk("2022-01-01\tDavid\t99\n");
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printk("2022-01-01\tJohn\t95\n");
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//测试输出八进制
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printk("\nTest base 8 : %d --> %o\n", 255, 255);
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//测试输出十六进制
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printk("\nTest base 16 : %d --> %x\n", 255, 255);
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printk("\nTest base 16 : %d --> %X\n", 255, 255);
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}
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void init()
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{
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// 初始化printk
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init_printk(1440, 900, FR_address, 1440 * 900 * 4, 8, 16);
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load_TR(8); // 加载TR寄存器
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// 初始化任务状态段表
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ul tss_item_addr = 0xffff800000007c00;
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set_TSS64(tss_item_addr, tss_item_addr, tss_item_addr, tss_item_addr, tss_item_addr,
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tss_item_addr, tss_item_addr, tss_item_addr, tss_item_addr, tss_item_addr);
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// 初始化中断描述符表
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init_sys_vector();
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}
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//操作系统内核从这里开始执行
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void Start_Kernel(void)
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{
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init();
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show_welcome();
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//test_printk();
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//int t = 1 / 0; // 测试异常处理模块能否正常工作 触发除法错误
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int t = *(int*) 0xffff80000aa00000; // 触发页故障
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while (1)
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;
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}
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void ignore_int()
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{
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printk("[");
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printk_color(YELLOW, BLACK, "WARN");
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printk("] Unknown interrupt or fault at RIP.\n");
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return;
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}
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