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Rev Age Author Path Log message Diff
9925 341 d 12 h Doczom /kernel/trunk/ [KERNEL] fixed a bug in rev 9917  
9917 345 d 21 h Doczom /kernel/trunk/ [KERNEL]: Replaced magic numbers with constants and cleaned code  
9911 414 d 22 h Doczom /kernel/trunk/ [KERNEL] cleaned code and added description of some functions  
9910 415 d 19 h Doczom /kernel/trunk/ [KERNEL] updated local labels in functions and other small changes  
9897 484 d 12 h dunkaist /kernel/trunk/ [kernel] Fix reading from empty board buffer (sf63.2)

Syscall 63.2, reading from the board buffer, was overwriting registers
edx and ebp when the buffer was empty. Now it sets eax and ebx according
to the kernel API.

Because of this ancient bug BOARD checks the status of sf63.2 syscall
this way:
mcall 63, 2
cmp ebx, 1
jne no_data
; when the buffer is empty, ebx is untouched, i.e. still 2, haha
; edx and ebp are destroyed, the code is lucky not to use them

By the way, the bug was found using umka tool.
 
9831 723 d 1 h dunkaist /kernel/trunk/ Rename fields in SYSCALL_STACK struct: _eax -> eax, etc  
9828 724 d 16 h Doczom /kernel/trunk/ KERNEL: reducing the use of current_slot_idx  
9823 728 d 9 h dunkaist /kernel/trunk/ [kernel] Add is_string_userspace func, like is_region_userspace  
9743 801 d 0 h Doczom /kernel/trunk/ fix bug in free group of port(46 sysf) in deleting thread  
9742 802 d 12 h Doczom /kernel/trunk/ small update 46 system function(no tested!)  
9715 835 d 23 h Doczom /kernel/trunk/ small update copyright year in kernel  
9710 838 d 22 h Doczom /kernel/trunk/ delete APPDATA.mem_start  
9709 838 d 23 h Doczom /kernel/trunk/ delete TASKDATA  
9692 841 d 19 h Doczom /kernel/trunk/ replacing TASK DATA.pid with APPDATA.tid  
9614 867 d 19 h Doczom /kernel/trunk/ replacing TASKDATA.event_mask with APPDATA.event_mask and cleared code  
9613 868 d 5 h Doczom /kernel/trunk/ add APPDATA.state for delete TASKDATA  
9612 868 d 18 h Doczom /kernel/trunk/ add APPDATA.state for delete TASKDATA  
9608 868 d 23 h Doczom /kernel/trunk/ add APPDATA.wnd_number  
9605 870 d 4 h Doczom /kernel/trunk/ replacing TASKDATA.mem_start with APPDATA.memstart  
9592 871 d 15 h Doczom /kernel/trunk/ fix cpu_usage  

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