uae-wii/src/native2amiga.c

116 lines
2.7 KiB
C

/*
* UAE - The Un*x Amiga Emulator
*
* Call Amiga Exec functions outside the main UAE thread.
*
* Copyright 1999 Patrick Ohly
*
* Uses the EXTER interrupt that is setup in filesys.c
* and needs thread support.
*/
#include "sysconfig.h"
#include "sysdeps.h"
#include "threaddep/thread.h"
#include "options.h"
#include "memory.h"
#include "custom.h"
#include "newcpu.h"
#include "autoconf.h"
#include "traps.h"
#include "native2amiga.h"
smp_comm_pipe native2amiga_pending;
static uae_sem_t n2asem;
/*
* to be called when setting up the hardware
*/
void native2amiga_install (void)
{
init_comm_pipe (&native2amiga_pending, 10, 2);
uae_sem_init (&n2asem, 0, 1);
}
/*
* to be called when the Amiga boots, i.e. by filesys_diagentry()
*/
void native2amiga_startup (void)
{
}
#ifdef SUPPORT_THREADS
void uae_Cause (uaecptr interrupt)
{
uae_sem_wait (&n2asem);
write_comm_pipe_int (&native2amiga_pending, 3, 0);
write_comm_pipe_u32 (&native2amiga_pending, interrupt, 1);
do_uae_int_requested ();
uae_sem_post (&n2asem);
}
void uae_ReplyMsg (uaecptr msg)
{
uae_sem_wait (&n2asem);
write_comm_pipe_int (&native2amiga_pending, 2, 0);
write_comm_pipe_u32 (&native2amiga_pending, msg, 1);
do_uae_int_requested ();
uae_sem_post (&n2asem);
}
void uae_PutMsg (uaecptr port, uaecptr msg)
{
uae_sem_wait (&n2asem);
write_comm_pipe_int (&native2amiga_pending, 1, 0);
write_comm_pipe_u32 (&native2amiga_pending, port, 0);
write_comm_pipe_u32 (&native2amiga_pending, msg, 1);
do_uae_int_requested ();
uae_sem_post (&n2asem);
}
void uae_Signal (uaecptr task, uae_u32 mask)
{
uae_sem_wait (&n2asem);
write_comm_pipe_int (&native2amiga_pending, 0, 0);
write_comm_pipe_u32 (&native2amiga_pending, task, 0);
write_comm_pipe_int (&native2amiga_pending, mask, 1);
do_uae_int_requested ();
uae_sem_post (&n2asem);
}
void uae_NotificationHack (uaecptr port, uaecptr nr)
{
uae_sem_wait (&n2asem);
write_comm_pipe_int (&native2amiga_pending, 4, 0);
write_comm_pipe_int (&native2amiga_pending, port, 0);
write_comm_pipe_int (&native2amiga_pending, nr, 1);
do_uae_int_requested ();
uae_sem_post (&n2asem);
}
#endif
void uae_NewList (uaecptr list)
{
put_long (list, list + 4);
put_long (list + 4, 0);
put_long (list + 8, list);
}
uaecptr uae_AllocMem (TrapContext *context, uae_u32 size, uae_u32 flags)
{
m68k_dreg (&context->regs, 0) = size;
m68k_dreg (&context->regs, 1) = flags;
return CallLib (context, get_long (4), -198); /* AllocMem */
}
void uae_FreeMem (TrapContext *context, uaecptr memory, uae_u32 size)
{
m68k_dreg (&context->regs, 0) = size;
m68k_areg (&context->regs, 1) = memory;
CallLib (context, get_long (4), -0xD2); /* FreeMem */
}