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Rev Age Author Path Log message Diff
9948 229 d 1 h Doczom /kernel/trunk/ [KERNEL] fixed bug in sysfn 39.3  
9947 240 d 1 h ace_dent / Update `docs/README.TXT` and rename to `CREDITS`
- Rename to `CREDITS.TXT` for clarity.
- Improve text of opening paragraph. Thanks to various translators.
- Reformat to use headings, removing excessive whitespace characters (~2.5KiB).
- Sort list of contributors alphabetically; easier to maintain.
- Add missing contributors and remove from `kernel.asm`. Thanks to @rgimad.
- Minor formatting and whitespace cleanup.
 
9941 249 d 7 h Doczom /kernel/trunk/ [KERNEL] Graphics subsystem has been redesigned:
- removed the old cursor and the code for its operation
- minor fixes in other kernel modules
- new fields have been added to the display_t structure for further refactoring of the graphics subsystem.
 
9932 282 d 1 h Doczom /kernel/trunk/ [KERNEL] cleared the code of unnecessary comments  
9930 284 d 2 h Doczom /kernel/trunk/ [KERNEL] The window subsystem has been redesigned:
-extended WDATA structures up to 128 bytes
-added the background_windows constant
-the draw_data array has been deleted
-APPDATA.window and WDATA.thread fields added
-minor fixes in the operation of external file system drivers
 
9926 338 d 7 h Doczom /kernel/trunk/ [KERNEL] the window subsystem was refactored, WDATA structures were expanded and magic numbers were replaced with constants  
9925 341 d 20 h Doczom /kernel/trunk/ [KERNEL] fixed a bug in rev 9917  
9917 346 d 5 h Doczom /kernel/trunk/ [KERNEL]: Replaced magic numbers with constants and cleaned code  
9911 415 d 5 h Doczom /kernel/trunk/ [KERNEL] cleaned code and added description of some functions  
9910 416 d 2 h Doczom /kernel/trunk/ [KERNEL] updated local labels in functions and other small changes  
9897 484 d 20 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 9 h dunkaist /kernel/trunk/ Rename fields in SYSCALL_STACK struct: _eax -> eax, etc  
9828 725 d 0 h Doczom /kernel/trunk/ KERNEL: reducing the use of current_slot_idx  
9823 728 d 16 h dunkaist /kernel/trunk/ [kernel] Add is_string_userspace func, like is_region_userspace  
9743 801 d 7 h Doczom /kernel/trunk/ fix bug in free group of port(46 sysf) in deleting thread  
9742 802 d 19 h Doczom /kernel/trunk/ small update 46 system function(no tested!)  
9715 836 d 6 h Doczom /kernel/trunk/ small update copyright year in kernel  
9710 839 d 5 h Doczom /kernel/trunk/ delete APPDATA.mem_start  
9709 839 d 6 h Doczom /kernel/trunk/ delete TASKDATA  
9692 842 d 3 h Doczom /kernel/trunk/ replacing TASK DATA.pid with APPDATA.tid  

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