changelog

一个小型的操作系统,采用gcc进行开发,几千行的代码,方便初学者学习

2004-06-27  root  <[e-mail]>

	* mem.c: removed a bug to make the last free block can be revoked

2004-06-27  root  <[e-mail]>

	* mem.c: removed a bug to make the last free block can be revoked

2004-06-26  root  <[e-mail]>

	* kernel.c:
	 hzk16 read to 0x2000:0 while system boot if video graphics mode is set
	 and then write to fatfs, use 'dir' to list directory to see,
	 cnver() read hzk16 to display Chinese version logo and reserved a
	system status bar at row 25 of screen, use command 'showhz'
	to display Chinese character with the syntax "showhz qh wh" where qh stands for "GB qu code" and wh "GB wei code", and newTask() is now void newTask(taskEntrance,taskname)
	kernel.h created

2004-06-12  root  <[e-mail]>

	* keyboard.c: add new function:
	moveHead(): advance dequeue pointer
	moveTail(): advance enqueue pointer
	keyEmpty(): if keyborad buffer emtpy then return 1, else return 0
	getKey()  : return asciiKey if called when keyboard buffer is not empty
	getScan() : return scancode  if called when keyboard buffer is not empty
	readKeybd(char *ascii, char *scan): both function of getKey() and getScan()

2004-06-07  root  <[e-mail]>

	* mem.c:
	add symbol _IN_SNIXOS for selective compile, if want mem.c used in snixos kernel add #define _IN_SNIXOS at the head of mem.c

	* mem.c: New file.

2004-06-01  root  <[e-mail]>

	* printf.c: add fprintf()

2004-05-24  root  <[e-mail]>

	* printf.c: add comments to some auxilary function

	* printf.c: New file.

2004-04-06  oracle  <oracle@jock>

	* kernel.c:
	remove the console switch function for the unstable reason while in running , console is all directed to the ktask(pid=1)'s task structure, console switch will be made later some day .

	* keyboard.c:
	correct the syntax error for character constant definition '10' in array char ascTab[]

2004-03-01  oracle  <oracle@jock>

	* kernel.c:
	revise the segment of keyboard handling procedure in ktask in accordance with the change of keyboard interrupt handler in int.asm

	* keyboard.c: New file.

2004-02-14  oracle  <oracle@jock>

	* kernel.c:
	add reboot command and function reboot(), useful to reboot computer

2004-02-01  oracle  <oracle@jock>

	* kernel.c: *** empty log message ***

	* kernel.c: move rcsDate to the first line of copyright information

	* kernel.c: add rcs keyword Date to ver()

	* kernel.c: New file.