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/* armcopro.c -- co-processor interface: ARM6 Instruction Emulator.
Copyright (C) 1994, 2000 Advanced RISC Machines Ltd.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "core/arm/skyeye_common/armdefs.h"
#include "core/arm/skyeye_common/armemu.h"
#include "core/arm/skyeye_common/vfp/vfp.h"
// Dummy Co-processors.
static unsigned int NoCoPro3R(ARMul_State* state, unsigned int a, ARMword b)
{
return ARMul_CANT;
}
static unsigned int NoCoPro4R(ARMul_State* state, unsigned int a, ARMword b, ARMword c)
{
return ARMul_CANT;
}
static unsigned int NoCoPro4W(ARMul_State* state, unsigned int a, ARMword b, ARMword* c)
{
return ARMul_CANT;
}
static unsigned int NoCoPro5R(ARMul_State* state, unsigned int a, ARMword b, ARMword c, ARMword d)
{
return ARMul_CANT;
}
static unsigned int NoCoPro5W(ARMul_State* state, unsigned int a, ARMword b, ARMword* c, ARMword* d)
{
return ARMul_CANT;
}
// Install co-processor instruction handlers in this routine.
unsigned int ARMul_CoProInit(ARMul_State* state)
{
// Initialise tham all first.
for (unsigned int i = 0; i < 16; i++)
ARMul_CoProDetach(state, i);
// Install CoPro Instruction handlers here.
// The format is:
// ARMul_CoProAttach (state, CP Number, Init routine, Exit routine
// LDC routine, STC routine, MRC routine, MCR routine,
// CDP routine, Read Reg routine, Write Reg routine).
if (state->is_v6) {
ARMul_CoProAttach(state, 10, VFPInit, NULL, VFPLDC, VFPSTC,
VFPMRC, VFPMCR, VFPMRRC, VFPMCRR, VFPCDP, NULL, NULL);
ARMul_CoProAttach(state, 11, VFPInit, NULL, VFPLDC, VFPSTC,
VFPMRC, VFPMCR, VFPMRRC, VFPMCRR, VFPCDP, NULL, NULL);
/*ARMul_CoProAttach (state, 15, MMUInit, NULL, NULL, NULL,
MMUMRC, MMUMCR, NULL, NULL, NULL, NULL, NULL);*/
}
// No handlers below here.
// Call all the initialisation routines.
for (unsigned int i = 0; i < 16; i++)
if (state->CPInit[i])
(state->CPInit[i]) (state);
return TRUE;
}
// Install co-processor finalisation routines in this routine.
void ARMul_CoProExit(ARMul_State * state)
{
for (unsigned int i = 0; i < 16; i++)
if (state->CPExit[i])
(state->CPExit[i]) (state);
// Detach all handlers.
for (unsigned int i = 0; i < 16; i++)
ARMul_CoProDetach(state, i);
}
// Routines to hook Co-processors into ARMulator.
void
ARMul_CoProAttach(ARMul_State* state,
unsigned number,
ARMul_CPInits* init,
ARMul_CPExits* exit,
ARMul_LDCs* ldc,
ARMul_STCs* stc,
ARMul_MRCs* mrc,
ARMul_MCRs* mcr,
ARMul_MRRCs* mrrc,
ARMul_MCRRs* mcrr,
ARMul_CDPs* cdp,
ARMul_CPReads* read, ARMul_CPWrites* write)
{
if (init != NULL)
state->CPInit[number] = init;
if (exit != NULL)
state->CPExit[number] = exit;
if (ldc != NULL)
state->LDC[number] = ldc;
if (stc != NULL)
state->STC[number] = stc;
if (mrc != NULL)
state->MRC[number] = mrc;
if (mcr != NULL)
state->MCR[number] = mcr;
if (mrrc != NULL)
state->MRRC[number] = mrrc;
if (mcrr != NULL)
state->MCRR[number] = mcrr;
if (cdp != NULL)
state->CDP[number] = cdp;
if (read != NULL)
state->CPRead[number] = read;
if (write != NULL)
state->CPWrite[number] = write;
}
void ARMul_CoProDetach(ARMul_State* state, unsigned number)
{
ARMul_CoProAttach(state, number, NULL, NULL,
NoCoPro4R, NoCoPro4W, NoCoPro4W, NoCoPro4R,
NoCoPro5W, NoCoPro5R, NoCoPro3R, NULL, NULL);
state->CPInit[number] = NULL;
state->CPExit[number] = NULL;
state->CPRead[number] = NULL;
state->CPWrite[number] = NULL;
}
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