mirror of
https://github.com/yourtion/30dayMakeOS.git
synced 2026-02-03 01:53:24 +08:00
263 lines
8.2 KiB
C
263 lines
8.2 KiB
C
/* asmhead.nas */
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struct BOOTINFO { /* 0x0ff0-0x0fff */
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char cyls; /* 启动区读磁盘读到此为止 */
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char leds; /* 启动时键盘的LED的状态 */
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char vmode; /* 显卡模式为多少位彩色 */
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char reserve;
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short scrnx, scrny; /* 画面分辨率 */
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char *vram;
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};
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#define ADR_BOOTINFO 0x00000ff0
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#define ADR_DISKIMG 0x00100000
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/* naskfunc.nas */
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void io_hlt(void);
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void io_cli(void);
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void io_sti(void);
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void io_stihlt(void);
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int io_in8(int port);
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void io_out8(int port, int data);
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int io_load_eflags(void);
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void io_store_eflags(int eflags);
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void load_gdtr(int limit, int addr);
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void load_idtr(int limit, int addr);
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int load_cr0(void);
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void store_cr0(int cr0);
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void load_tr(int tr);
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void asm_inthandler0d(void);
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void asm_inthandler20(void);
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void asm_inthandler21(void);
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void asm_inthandler27(void);
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void asm_inthandler2c(void);
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unsigned int memtest_sub(unsigned int start, unsigned int end);
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void farjmp(int eip, int cs);
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void farcall(int eip, int cs);
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void asm_hrb_api(void);
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void start_app(int eip, int cs, int esp, int ds, int *tss_esp0);
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/* fifo.c */
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struct FIFO32 {
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int *buf;
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int p, q, size, free, flags;
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struct TASK *task;
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};
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void fifo32_init(struct FIFO32 *fifo, int size, int *buf, struct TASK *task);
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int fifo32_put(struct FIFO32 *fifo, int data);
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int fifo32_get(struct FIFO32 *fifo);
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int fifo32_status(struct FIFO32 *fifo);
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/* graphic.c */
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void init_palette(void);
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void set_palette(int start, int end, unsigned char *rgb);
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void boxfill8(unsigned char *vram, int xsize, unsigned char c, int x0, int y0, int x1, int y1);
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void init_screen8(char *vram, int x, int y);
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void putfont8(char *vram, int xsize, int x, int y, char c, char *font);
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void putfonts8_asc(char *vram, int xsize, int x, int y, char c, unsigned char *s);
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void init_mouse_cursor8(char *mouse, char bc);
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void putblock8_8(char *vram, int vxsize, int pxsize,
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int pysize, int px0, int py0, char *buf, int bxsize);
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#define COL8_000000 0
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#define COL8_FF0000 1
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#define COL8_00FF00 2
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#define COL8_FFFF00 3
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#define COL8_0000FF 4
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#define COL8_FF00FF 5
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#define COL8_00FFFF 6
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#define COL8_FFFFFF 7
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#define COL8_C6C6C6 8
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#define COL8_840000 9
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#define COL8_008400 10
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#define COL8_848400 11
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#define COL8_000084 12
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#define COL8_840084 13
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#define COL8_008484 14
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#define COL8_848484 15
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/* dsctbl.c */
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struct SEGMENT_DESCRIPTOR {
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short limit_low, base_low;
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char base_mid, access_right;
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char limit_high, base_high;
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};
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struct GATE_DESCRIPTOR {
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short offset_low, selector;
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char dw_count, access_right;
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short offset_high;
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};
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void init_gdtidt(void);
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void set_segmdesc(struct SEGMENT_DESCRIPTOR *sd, unsigned int limit, int base, int ar);
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void set_gatedesc(struct GATE_DESCRIPTOR *gd, int offset, int selector, int ar);
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#define ADR_IDT 0x0026f800
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#define LIMIT_IDT 0x000007ff
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#define ADR_GDT 0x00270000
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#define LIMIT_GDT 0x0000ffff
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#define ADR_BOTPAK 0x00280000
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#define LIMIT_BOTPAK 0x0007ffff
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#define AR_DATA32_RW 0x4092
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#define AR_CODE32_ER 0x409a
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#define AR_TSS32 0x0089
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#define AR_INTGATE32 0x008e
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/* int.c */
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void init_pic(void);
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void inthandler27(int *esp);
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#define PIC0_ICW1 0x0020
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#define PIC0_OCW2 0x0020
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#define PIC0_IMR 0x0021
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#define PIC0_ICW2 0x0021
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#define PIC0_ICW3 0x0021
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#define PIC0_ICW4 0x0021
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#define PIC1_ICW1 0x00a0
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#define PIC1_OCW2 0x00a0
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#define PIC1_IMR 0x00a1
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#define PIC1_ICW2 0x00a1
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#define PIC1_ICW3 0x00a1
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#define PIC1_ICW4 0x00a1
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/* keyboard.c */
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void inthandler21(int *esp);
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void wait_KBC_sendready(void);
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void init_keyboard(struct FIFO32 *fifo, int data0);
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#define PORT_KEYDAT 0x0060
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#define PORT_KEYCMD 0x0064
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/* mouse.c */
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struct MOUSE_DEC {
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unsigned char buf[3], phase;
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int x, y, btn;
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};
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void inthandler2c(int *esp);
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void enable_mouse(struct FIFO32 *fifo, int data0, struct MOUSE_DEC *mdec);
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int mouse_decode(struct MOUSE_DEC *mdec, unsigned char dat);
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/* memory.c */
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#define MEMMAN_FREES 4090 /* 大约是32KB*/
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#define MEMMAN_ADDR 0x003c0000
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struct FREEINFO { /* 可用信息 */
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unsigned int addr, size;
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};
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struct MEMMAN { /* 内存管理 */
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int frees, maxfrees, lostsize, losts;
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struct FREEINFO free[MEMMAN_FREES];
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};
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unsigned int memtest(unsigned int start, unsigned int end);
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void memman_init(struct MEMMAN *man);
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unsigned int memman_total(struct MEMMAN *man);
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unsigned int memman_alloc(struct MEMMAN *man, unsigned int size);
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int memman_free(struct MEMMAN *man, unsigned int addr, unsigned int size);
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unsigned int memman_alloc_4k(struct MEMMAN *man, unsigned int size);
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int memman_free_4k(struct MEMMAN *man, unsigned int addr, unsigned int size);
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/* sheet.c */
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#define MAX_SHEETS 256
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struct SHEET {
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unsigned char *buf;
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int bxsize, bysize, vx0, vy0, col_inv, height, flags;
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struct SHTCTL *ctl;
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};
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struct SHTCTL {
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unsigned char *vram, *map;
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int xsize, ysize, top;
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struct SHEET *sheets[MAX_SHEETS];
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struct SHEET sheets0[MAX_SHEETS];
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};
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struct SHTCTL *shtctl_init(struct MEMMAN *memman, unsigned char *vram, int xsize, int ysize);
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struct SHEET *sheet_alloc(struct SHTCTL *ctl);
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void sheet_setbuf(struct SHEET *sht, unsigned char *buf, int xsize, int ysize, int col_inv);
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void sheet_updown(struct SHEET *sht, int height);
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void sheet_refresh(struct SHEET *sht, int bx0, int by0, int bx1, int by1);
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void sheet_slide(struct SHEET *sht, int vx0, int vy0);
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void sheet_free(struct SHEET *sht);
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/* timer.c */
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#define MAX_TIMER 500
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struct TIMER {
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struct TIMER *next;
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unsigned int timeout, flags;
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struct FIFO32 *fifo;
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int data;
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};
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struct TIMERCTL {
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unsigned int count, next;
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struct TIMER *t0;
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struct TIMER timers0[MAX_TIMER];
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};
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extern struct TIMERCTL timerctl;
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void init_pit(void);
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struct TIMER *timer_alloc(void);
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void timer_free(struct TIMER *timer);
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void timer_init(struct TIMER *timer, struct FIFO32 *fifo, int data);
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void timer_settime(struct TIMER *timer, unsigned int timeout);
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void inthandler20(int *esp);
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/* mtask.c */
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#define MAX_TASKS 1000 /*最大任务数量*/
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#define TASK_GDT0 3 /*定义从GDT的几号开始分配给TSS */
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#define MAX_TASKS_LV 100
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#define MAX_TASKLEVELS 10
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struct TSS32 {
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int backlink, esp0, ss0, esp1, ss1, esp2, ss2, cr3;
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int eip, eflags, eax, ecx, edx, ebx, esp, ebp, esi, edi;
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int es, cs, ss, ds, fs, gs;
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int ldtr, iomap;
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};
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struct TASK {
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int sel, flags; /* sel用来存放GDT的编号*/
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int level, priority; /* 优先级 */
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struct FIFO32 fifo;
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struct TSS32 tss;
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};
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struct TASKLEVEL {
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int running; /*正在运行的任务数量*/
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int now; /*这个变量用来记录当前正在运行的是哪个任务*/
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struct TASK *tasks[MAX_TASKS_LV];
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};
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struct TASKCTL {
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int now_lv; /*现在活动中的LEVEL */
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char lv_change; /*在下次任务切换时是否需要改变LEVEL */
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struct TASKLEVEL level[MAX_TASKLEVELS];
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struct TASK tasks0[MAX_TASKS];
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};
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extern struct TIMER *task_timer;
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struct TASK *task_init(struct MEMMAN *memman);
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struct TASK *task_alloc(void);
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void task_run(struct TASK *task, int level, int priority);
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void task_switch(void);
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void task_sleep(struct TASK *task);
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/* window.c */
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void make_window8(unsigned char *buf, int xsize, int ysize, char *title, char act);
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void putfonts8_asc_sht(struct SHEET *sht, int x, int y, int c, int b, char *s, int l);
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void make_textbox8(struct SHEET *sht, int x0, int y0, int sx, int sy, int c);
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void make_wtitle8(unsigned char *buf, int xsize, char *title, char act);
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/* console.c */
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struct CONSOLE {
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struct SHEET *sht;
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int cur_x, cur_y, cur_c;
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};
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void console_task(struct SHEET *sheet, unsigned int memtotal);
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void cons_putchar(struct CONSOLE *cons, int chr, char move);
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void cons_newline(struct CONSOLE *cons);
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void cons_putstr0(struct CONSOLE *cons, char *s);
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void cons_putstr1(struct CONSOLE *cons, char *s, int l);
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void cons_runcmd(char *cmdline, struct CONSOLE *cons, int *fat, unsigned int memtotal);
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void cmd_mem(struct CONSOLE *cons, unsigned int memtotal);
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void cmd_cls(struct CONSOLE *cons);
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void cmd_dir(struct CONSOLE *cons);
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void cmd_type(struct CONSOLE *cons, int *fat, char *cmdline);
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int cmd_app(struct CONSOLE *cons, int *fat, char *cmdline);
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int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int eax);
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int *inthandler0d(int *esp);
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/* file.c */
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struct FILEINFO {
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unsigned char name[8], ext[3], type;
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char reserve[10];
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unsigned short time, date, clustno;
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unsigned int size;
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};
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void file_readfat(int *fat, unsigned char *img);
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void file_loadfile(int clustno, int size, char *buf, int *fat, char *img);
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struct FILEINFO *file_search(char *name, struct FILEINFO *finfo, int max);
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