nuclear@1: #include <stdio.h>
nuclear@16: #include "mboot.h"
nuclear@0: #include "vid.h"
nuclear@1: #include "term.h"
nuclear@16: #include "asmops.h"
nuclear@7: #include "segm.h"
nuclear@10: #include "intr.h"
nuclear@33: #include "timer.h"
nuclear@27: #include "mem.h"
nuclear@16: #include "vm.h"
nuclear@16: 
nuclear@2: /* special keys */
nuclear@2: enum {
nuclear@2: 	LALT, RALT,
nuclear@2: 	LCTRL, RCTRL,
nuclear@2: 	LSHIFT, RSHIFT,
nuclear@2: 	F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12,
nuclear@2: 	CAPSLK, NUMLK, SCRLK, SYSRQ,
nuclear@2: 	ESC		= 27,
nuclear@2: 	INSERT, DEL, HOME, END, PGUP, PGDN, LEFT, RIGHT, UP, DOWN,
nuclear@2: 	NUM_DOT, NUM_ENTER, NUM_PLUS, NUM_MINUS, NUM_MUL, NUM_DIV,
nuclear@2: 	NUM_0, NUM_1, NUM_2, NUM_3, NUM_4, NUM_5, NUM_6, NUM_7, NUM_8, NUM_9,
nuclear@2: 	BACKSP	= 127
nuclear@2: };
nuclear@2: 
nuclear@2: /* table with rough translations from set 1 scancodes to ASCII-ish */
nuclear@2: static int keycodes[] = {
nuclear@2: 	0, ESC, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', '\b',		/* 0 - e */
nuclear@2: 	'\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',			/* f - 1c */
nuclear@2: 	LCTRL, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`',				/* 1d - 29 */
nuclear@2: 	LSHIFT, '\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', RSHIFT,			/* 2a - 36 */
nuclear@2: 	NUM_MUL, LALT, ' ', CAPSLK, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10,			/* 37 - 44 */
nuclear@2: 	NUMLK, SCRLK, NUM_7, NUM_8, NUM_9, NUM_MINUS, NUM_4, NUM_5, NUM_6, NUM_PLUS,	/* 45 - 4e */
nuclear@2: 	NUM_1, NUM_2, NUM_3, NUM_0, NUM_DOT, SYSRQ, 0, 0, F11, F12,						/* 4d - 58 */
nuclear@2: 	0, 0, 0, 0, 0, 0, 0,															/* 59 - 5f */
nuclear@2: 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,									/* 60 - 6f */
nuclear@2: 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0									/* 70 - 7f */
nuclear@2: };
nuclear@2: 
nuclear@16: void kmain(struct mboot_info *mbinf)
nuclear@0: {
nuclear@2: 	clear_scr();
nuclear@16: 
nuclear@16: 	/* pointless verbal diarrhea */
nuclear@16: 	if(mbinf->flags & MB_LDRNAME) {
nuclear@16: 		printf("loaded by: %s\n", mbinf->boot_loader_name);
nuclear@16: 	}
nuclear@16: 	if(mbinf->flags & MB_CMDLINE) {
nuclear@16: 		printf("kernel command line: %s\n", mbinf->cmdline);
nuclear@16: 	}
nuclear@16: 
nuclear@2: 	puts("kernel starting up");
nuclear@2: 
nuclear@7: 	init_segm();
nuclear@10: 	init_intr();
nuclear@7: 
nuclear@33: 	init_timer();
nuclear@13: 
nuclear@26: 	/* initialize the physical memory manager */
nuclear@26: 	init_mem(mbinf);
nuclear@26: 	/* initialize paging and the virtual memory manager */
nuclear@26: 	init_vm();
nuclear@19: 
nuclear@27: 	/* initialization complete, enable interrupts */
nuclear@27: 	enable_intr();
nuclear@27: 
nuclear@2: 	for(;;) {
nuclear@2: 		char c, keypress;
nuclear@2: 		do {
nuclear@2: 			inb(keypress, 0x64);
nuclear@2: 		} while(!(keypress & 1));
nuclear@2: 		inb(c, 0x60);
nuclear@2: 		if(!(c & 0x80)) {
nuclear@7: 			putchar(keycodes[(int)c]);
nuclear@2: 		}
nuclear@2: 	}
nuclear@0: }