/* asmhead.nas */

struct BOOTINFO { /* 0x0ff0-0x0fff */

};

#define ADR_BOOTINFO 0x00000ff0

/* naskfunc.nas */

void io_hlt(void);

void io_cli(void);

void io_sti(void);

void io_stihlt(void);

int io_in8(int port);

void io_out8(int port, int data);

int io_load_eflags(void);

void io_store_eflags(int eflags);

void load_gdtr(int limit, int addr);

void load_idtr(int limit, int addr);

int load_cr0(void);

void store_cr0(int cr0);

void asm_inthandler20(void);

void asm_inthandler21(void);

void asm_inthandler27(void);

void asm_inthandler2c(void);

unsigned int memtest_sub(unsigned int start, unsigned int end);

/* fifo.c */

struct FIFO32 {

int *buf;

int p, q, size, free, flags;

};

void fifo32_init(struct FIFO32 *fifo, int size, int *buf);

int fifo32_put(struct FIFO32 *fifo, int data);

int fifo32_get(struct FIFO32 *fifo);

int fifo32_status(struct FIFO32 *fifo);

/* graphic.c */

void init_palette(void);

void set_palette(int start, int end, unsigned char *rgb);

void boxfill8(unsigned char *vram, int xsize, unsigned char c, int x0, int y0, int x1, int y1);

void init_screen8(char *vram, int x, int y);

void putfont8(char *vram, int xsize, int x, int y, char c, char *font);

void putfonts8_asc(char *vram, int xsize, int x, int y, char c, unsigned char *s);

void init_mouse_cursor8(char *mouse, char bc);

void putblock8_8(char *vram, int vxsize, int pxsize,

int pysize, int px0, int py0, char *buf, int bxsize);

#define COL8_000000 0

#define COL8_FF0000 1

#define COL8_00FF00 2

#define COL8_FFFF00 3

#define COL8_0000FF 4

#define COL8_FF00FF 5

#define COL8_00FFFF 6

#define COL8_FFFFFF 7

#define COL8_C6C6C6 8

#define COL8_840000 9

#define COL8_008400 10

#define COL8_848400 11

#define COL8_000084 12

#define COL8_840084 13

#define COL8_008484 14

#define COL8_848484 15

/* dsctbl.c */

struct SEGMENT_DESCRIPTOR {

};

struct GATE_DESCRIPTOR {

};

void init_gdtidt(void);

void set_segmdesc(struct SEGMENT_DESCRIPTOR *sd, unsigned int limit, int base, int ar);

void set_gatedesc(struct GATE_DESCRIPTOR *gd, int offset, int selector, int ar);

#define ADR_IDT 0x0026f800

#define LIMIT_IDT 0x000007ff

#define ADR_GDT 0x00270000

#define LIMIT_GDT 0x0000ffff

#define ADR_BOTPAK 0x00280000

#define LIMIT_BOTPAK 0x0007ffff

#define AR_DATA32_RW 0x4092

#define AR_CODE32_ER 0x409a

#define AR_INTGATE32 0x008e

/* int.c */

void init_pic(void);

void inthandler27(int *esp);

#define PIC0_ICW1 0x0020

#define PIC0_OCW2 0x0020

#define PIC0_IMR 0x0021

#define PIC0_ICW2 0x0021

#define PIC0_ICW3 0x0021

#define PIC0_ICW4 0x0021

#define PIC1_ICW1 0x00a0

#define PIC1_OCW2 0x00a0

#define PIC1_IMR 0x00a1

#define PIC1_ICW2 0x00a1

#define PIC1_ICW3 0x00a1

#define PIC1_ICW4 0x00a1

/* keyboard.c */

void inthandler21(int *esp);

void wait_KBC_sendready(void);

void init_keyboard(struct FIFO32 *fifo, int data0);

#define PORT_KEYDAT 0x0060

#define PORT_KEYCMD 0x0064

/* mouse.c */

struct MOUSE_DEC {

unsigned char buf[3], phase;

int x, y, btn;

};

void inthandler2c(int *esp);

void enable_mouse(struct FIFO32 *fifo, int data0, struct MOUSE_DEC *mdec);

int mouse_decode(struct MOUSE_DEC *mdec, unsigned char dat);

/* memory.c */

#define MEMMAN_FREES 4090 /* 大约是32KB*/

#define MEMMAN_ADDR 0x003c0000

struct FREEINFO { /* 可用信息 */

unsigned int addr, size;

};

struct MEMMAN { /* 内存管理 */

int frees, maxfrees, lostsize, losts;

struct FREEINFO free[MEMMAN_FREES];

};

unsigned int memtest(unsigned int start, unsigned int end);

void memman_init(struct MEMMAN *man);

unsigned int memman_total(struct MEMMAN *man);

unsigned int memman_alloc(struct MEMMAN *man, unsigned int size);

int memman_free(struct MEMMAN *man, unsigned int addr, unsigned int size);

unsigned int memman_alloc_4k(struct MEMMAN *man, unsigned int size);

int memman_free_4k(struct MEMMAN *man, unsigned int addr, unsigned int size);

/* sheet.c */

#define MAX_SHEETS 256

#define SHEET_USE 1

struct SHEET {

};

struct SHTCTL {

};

struct SHTCTL *shtctl_init(struct MEMMAN *memman, unsigned char *vram, int xsize, int ysize);

struct SHEET *sheet_alloc(struct SHTCTL *ctl);

void sheet_setbuf(struct SHEET *sht, unsigned char *buf, int xsize, int ysize, int col_inv);

void sheet_updown(struct SHEET *sht, int height);

void sheet_refresh(struct SHEET *sht, int bx0, int by0, int bx1, int by1);

void sheet_slide(struct SHEET *sht, int vx0, int vy0);

void sheet_free(struct SHEET *sht);

/* timer.c */

#define MAX_TIMER 500

struct TIMER {

};

struct TIMERCTL {

};

extern struct TIMERCTL timerctl;

void init_pit(void);

struct TIMER *timer_alloc(void);

void timer_free(struct TIMER *timer);

void timer_init(struct TIMER *timer, struct FIFO32 *fifo, int data);

void timer_settime(struct TIMER *timer, unsigned int timeout);

void inthandler20(int *esp);