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加快中断处理

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Yourtion
2014-09-17 10:59:49 +08:00
parent d933d9b581
commit 22bda5f82c
3 changed files with 31 additions and 13 deletions
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26
07_day/bootpack.c
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@@ -1,31 +1,43 @@
/* bootpack */
/* bootpackのメイン */
#include "bootpack.h"
#include <stdio.h>
extern struct KEYBUF keybuf;
void HariMain(void)
{
struct BOOTINFO *binfo = (struct BOOTINFO *) ADR_BOOTINFO;
char s[40], mcursor[256];
int mx, my;
int mx, my, i;
init_gdtidt();
init_pic();
io_sti(); /* IDT/PICの初期化が終わったのでCPUの割り込み禁止を解除 */
io_out8(PIC0_IMR, 0xf9); /* PIC1とキーボードを許可(11111001) */
io_out8(PIC1_IMR, 0xef); /* マウスを許可(11101111) */
init_palette();
init_screen8(binfo->vram, binfo->scrnx, binfo->scrny);
mx = (binfo->scrnx - 16) / 2; /* 计算画面的中心坐标*/
mx = (binfo->scrnx - 16) / 2; /* 计算画面中心坐标 */
my = (binfo->scrny - 28 - 16) / 2;
init_mouse_cursor8(mcursor, COL8_008484);
putblock8_8(binfo->vram, binfo->scrnx, 16, 16, mx, my, mcursor, 16);
sprintf(s, "(%d, %d)", mx, my);
putfonts8_asc(binfo->vram, binfo->scrnx, 0, 0, COL8_FFFFFF, s);
io_out8(PIC0_IMR, 0xf9); /* PIC1とキーボードを許可(11111001) */
io_out8(PIC1_IMR, 0xef); /* マウスを許可(11101111) */
for (;;) {
io_hlt();
io_cli();
if (keybuf.flag == 0) {
io_stihlt();
} else {
i = keybuf.data;
keybuf.flag = 0;
io_sti();
sprintf(s, "%02X", i);
boxfill8(binfo->vram, binfo->scrnx, COL8_008484, 0, 16, 15, 31);
putfonts8_asc(binfo->vram, binfo->scrnx, 0, 16, COL8_FFFFFF, s);
}
}
}