mirror of
https://github.com/LIV2/WinUAE.git
synced 2025-12-06 00:12:52 +00:00
129 lines
2.8 KiB
C++
129 lines
2.8 KiB
C++
/*
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* UAE - The Un*x Amiga Emulator
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*
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* Call Amiga Exec functions outside the main UAE thread.
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*
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* Copyright 1999 Patrick Ohly
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*
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* Uses the EXTER interrupt that is setup in filesys.c
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* and needs thread support.
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*/
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#include "sysconfig.h"
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#include "sysdeps.h"
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#include "threaddep/thread.h"
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#include "options.h"
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#include "memory.h"
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#include "custom.h"
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#include "newcpu.h"
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#include "autoconf.h"
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#include "traps.h"
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#include "native2amiga.h"
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smp_comm_pipe native2amiga_pending;
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static uae_sem_t n2asem;
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/*
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* to be called when setting up the hardware
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*/
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void native2amiga_install (void)
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{
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init_comm_pipe (&native2amiga_pending, 100, 2);
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uae_sem_init (&n2asem, 0, 1);
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}
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void native2amiga_reset (void)
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{
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smp_comm_pipe *p = &native2amiga_pending;
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p->rdp = p->wrp = 0;
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p->reader_waiting = 0;
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p->writer_waiting = 0;
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};
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/*
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* to be called when the Amiga boots, i.e. by filesys_diagentry()
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*/
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void native2amiga_startup (void)
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{
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}
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int native2amiga_isfree (void)
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{
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return comm_pipe_has_data (&native2amiga_pending) == 0;
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}
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#ifdef SUPPORT_THREADS
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void uae_Cause (uaecptr interrupt)
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{
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uae_sem_wait (&n2asem);
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write_comm_pipe_int (&native2amiga_pending, 3, 0);
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write_comm_pipe_u32 (&native2amiga_pending, interrupt, 1);
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do_uae_int_requested ();
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uae_sem_post (&n2asem);
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}
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void uae_ReplyMsg (uaecptr msg)
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{
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uae_sem_wait (&n2asem);
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write_comm_pipe_int (&native2amiga_pending, 2, 0);
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write_comm_pipe_u32 (&native2amiga_pending, msg, 1);
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do_uae_int_requested ();
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uae_sem_post (&n2asem);
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}
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void uae_PutMsg (uaecptr port, uaecptr msg)
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{
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uae_sem_wait (&n2asem);
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write_comm_pipe_int (&native2amiga_pending, 1, 0);
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write_comm_pipe_u32 (&native2amiga_pending, port, 0);
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write_comm_pipe_u32 (&native2amiga_pending, msg, 1);
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do_uae_int_requested ();
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uae_sem_post (&n2asem);
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}
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void uae_Signal (uaecptr task, uae_u32 mask)
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{
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uae_sem_wait (&n2asem);
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write_comm_pipe_int (&native2amiga_pending, 0, 0);
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write_comm_pipe_u32 (&native2amiga_pending, task, 0);
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write_comm_pipe_int (&native2amiga_pending, mask, 1);
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do_uae_int_requested ();
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uae_sem_post (&n2asem);
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}
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void uae_NotificationHack (uaecptr port, uaecptr nr)
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{
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uae_sem_wait (&n2asem);
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write_comm_pipe_int (&native2amiga_pending, 4, 0);
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write_comm_pipe_int (&native2amiga_pending, port, 0);
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write_comm_pipe_int (&native2amiga_pending, nr, 1);
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do_uae_int_requested ();
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uae_sem_post (&n2asem);
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}
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#endif
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void uae_NewList (uaecptr list)
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{
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x_put_long (list, list + 4);
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x_put_long (list + 4, 0);
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x_put_long (list + 8, list);
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}
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uaecptr uae_AllocMem (TrapContext *context, uae_u32 size, uae_u32 flags, uaecptr sysbase)
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{
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m68k_dreg (regs, 0) = size;
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m68k_dreg (regs, 1) = flags;
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return CallLib (context, sysbase, -198); /* AllocMem */
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}
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void uae_FreeMem (TrapContext *context, uaecptr memory, uae_u32 size, uaecptr sysbase)
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{
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m68k_dreg (regs, 0) = size;
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m68k_areg (regs, 1) = memory;
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CallLib (context, sysbase, -0xD2); /* FreeMem */
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}
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