T-Kernel Specification (1.B0.02)

76 CHAPTER 4. T-KERNEL/OS FUNCTIONS
tk ref tex
Reference Task Exception Status
[C Language Interface]
ER ercd = tk_ref_tex ( ID tskid, T_RTEX *pk_rtex ) ;
[Parameters]
ID tskid Task ID
T RTEX* pk rtex Address of packet for returning task exception status
[Return Parameters]
ER ercd Error code
pk rtex detail:
UINT pendtex Pending task exceptions
UINT texmask Allowed task exceptions
(Other implementation-dependent parameters may be added beyond this point.)
[Error Codes]
E OK
E ID
E NOEXS
E PAR
Normal completion
Invalid ID number (tskid is invalid or cannot be used)
Object does not exist (the task designated in tskid does not exist)
Parameter error (the return parameter packet address cannot be used)
[Description]
Gets the status of task exceptions for the task designated in tskid.
pendtex indicates the currently pending task exceptions. A raised task exception is indicated in pendtex
from the time the task exception is raised until its task exception handler is called.
texmask indicates allowed task exceptions.
Both pendtex and texmask are bit arrays of the form 1