fixed cursor bugs

bugs fixed

day25 achievement

window switch using mouse and shortcuts alt+tab
move window using mouse
close window using mouse
key_to -> key_win
timer API for applications
tiemrcancel in timer.c

day23 achievement

a_nask.asm:
_api_point
_api_linewin
_api_refreshwin
_api_closewin
app:
lines.hrb
walk.hrb
add support for os auto clean remaining window app graphics

day21 c lang app and protect os

1. make c language application API
2. write some crack virus program to test os protection
3. add support to throw exception
4. add string put API
5. protect os from crack virus

day20 finished

day20-final

makefile add hello2 to spark.img

day20-3 display single char API

a bootable demo disk image for sparkos

multi-tasks

multi-tasks switch by different task level

0.0.1

day15 - added tools