1.1 --- a/src/sh4/sh4core.h	Mon Jul 14 07:44:42 2008 +0000
     1.2 +++ b/src/sh4/sh4core.h	Wed Jul 16 10:40:10 2008 +0000
     1.3 @@ -72,6 +72,42 @@
     1.4   */
     1.5  #define GET_ICACHE_END() (sh4_icache.page_vma + (~sh4_icache.mask) + 1)
     1.6  
     1.7 +
     1.8 +/**
     1.9 + * SH4 vm-exit flag - exit the current block but continue (eg exception handling)
    1.10 + */
    1.11 +#define CORE_EXIT_CONTINUE 1
    1.12 +
    1.13 +/**
    1.14 + * SH4 vm-exit flag - exit the current block and halt immediately (eg fatal error)
    1.15 + */
    1.16 +#define CORE_EXIT_HALT 2
    1.17 +
    1.18 +/**
    1.19 + * SH4 vm-exit flag - exit the current block and halt immediately for a system
    1.20 + * breakpoint.
    1.21 + */
    1.22 +#define CORE_EXIT_BREAKPOINT 3
    1.23 +
    1.24 +/**
    1.25 + * SH4 vm-exit flag - exit the current block and continue after performing a full
    1.26 + * system reset (dreamcast_reset())
    1.27 + */
    1.28 +#define CORE_EXIT_SYSRESET 4
    1.29 +
    1.30 +/**
    1.31 + * SH4 vm-exit flag - exit the current block and continue after the next IRQ.
    1.32 + */
    1.33 +#define CORE_EXIT_SLEEP 5
    1.34 +
    1.35 +/**
    1.36 + * SH4 vm-exit flag - exit the current block  and flush all instruction caches (ie
    1.37 + * if address translation has changed)
    1.38 + */
    1.39 +#define CORE_EXIT_FLUSH_ICACHE 6
    1.40 +
    1.41 +typedef uint32_t (*sh4_run_slice_fn)(uint32_t);
    1.42 +
    1.43  /* SH4 module functions */
    1.44  void sh4_init( void );
    1.45  void sh4_reset( void );
    1.46 @@ -81,6 +117,25 @@
    1.47  uint32_t sh4_xlat_run_slice( uint32_t nanos ); // Run single timeslice using translator
    1.48  uint32_t sh4_sleep_run_slice( uint32_t nanos ); // Run single timeslice while the CPU is asleep
    1.49  
    1.50 +/**
    1.51 + * Immediately exit from the currently executing instruction with the given
    1.52 + * exit code. This method does not return.
    1.53 + */
    1.54 +void sh4_core_exit( int exit_code );
    1.55 +
    1.56 +/**
    1.57 + * Exit the current block at the end of the current instruction, flush the
    1.58 + * translation cache (completely) and return control to sh4_xlat_run_slice.
    1.59 + *
    1.60 + * As a special case, if the current instruction is actually the last 
    1.61 + * instruction in the block (ie it's in a delay slot), this function 
    1.62 + * returns to allow normal completion of the translation block. Otherwise
    1.63 + * this function never returns.
    1.64 + *
    1.65 + * Must only be invoked (indirectly) from within translated code.
    1.66 + */
    1.67 +void sh4_flush_icache();
    1.68 +
    1.69  /* SH4 peripheral module functions */
    1.70  void CPG_reset( void );
    1.71  void DMAC_reset( void );