rom/kernel/kernel_intr.h

   1 #include <proto/exec.h>
   2
   3 /* Main scheduler entry points */
   4 void core_ExitInterrupt(regs_t *regs);
   5 void core_SysCall(int sc, regs_t *regs);
   6
   7 /* CPU-specific wrappers. Need to be implemented in CPU-specific parts */
   8 void cpu_Switch(regs_t *regs);
   9 void cpu_Dispatch(regs_t *regs);
  10
  11 /* This constant can be redefined this in arch-specific includes */
  12 #ifndef _CUSTOM
  13 #define _CUSTOM NULL
  14 #endif
  15
  16 /* Call exec interrupt vector, if present */
  17 static inline void core_Cause(unsigned char n, unsigned int mask)
  18 {
  19     struct IntVector *iv = &SysBase->IntVects[n];
  20
  21     /* If the SoftInt vector in SysBase is set, call it. It will do the rest for us */
  22     if (iv->iv_Code)
  23         AROS_INTC3(iv->iv_Code, iv->iv_Data, mask, _CUSTOM);
  24 }
  25
  26 /* Call exec trap handler, if possible */
  27 static inline int core_Trap(ULONG code, void *regs)
  28 {
  29     /* exec.library Alert() is inoperative without KernelBase,
  30      * but SysBase should not be valid if KernelBase is
  31      * not set up.
  32      */
  33     if (SysBase)
  34     {
  35         void (*trapHandler)(ULONG, void *) = SysBase->TaskTrapCode;
  36         struct Task *t = SysBase->ThisTask;
  37
  38         if (t)
  39         {
  40             if (t->tc_TrapCode)
  41                 trapHandler = t->tc_TrapCode;
  42         }
  43
  44         if (trapHandler)
  45         {
  46             trapHandler(code, regs);
  47             return 1;
  48         }
  49     }
  50     return 0;
  51 }