088fab743f
- Removed the Debug parameter from ARMul_State since it isn't used. - Changed ARMul_CoProInit to a void function. It always returned true.
142 lines
4.3 KiB
C++
142 lines
4.3 KiB
C++
/* armcopro.c -- co-processor interface: ARM6 Instruction Emulator.
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Copyright (C) 1994, 2000 Advanced RISC Machines Ltd.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "core/arm/skyeye_common/armdefs.h"
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#include "core/arm/skyeye_common/armemu.h"
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#include "core/arm/skyeye_common/vfp/vfp.h"
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// Dummy Co-processors.
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static unsigned int NoCoPro3R(ARMul_State* state, unsigned int a, ARMword b)
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{
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return ARMul_CANT;
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}
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static unsigned int NoCoPro4R(ARMul_State* state, unsigned int a, ARMword b, ARMword c)
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{
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return ARMul_CANT;
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}
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static unsigned int NoCoPro4W(ARMul_State* state, unsigned int a, ARMword b, ARMword* c)
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{
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return ARMul_CANT;
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}
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static unsigned int NoCoPro5R(ARMul_State* state, unsigned int a, ARMword b, ARMword c, ARMword d)
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{
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return ARMul_CANT;
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}
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static unsigned int NoCoPro5W(ARMul_State* state, unsigned int a, ARMword b, ARMword* c, ARMword* d)
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{
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return ARMul_CANT;
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}
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// Install co-processor instruction handlers in this routine.
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void ARMul_CoProInit(ARMul_State* state)
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{
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// Initialise tham all first.
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for (unsigned int i = 0; i < 16; i++)
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ARMul_CoProDetach(state, i);
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// Install CoPro Instruction handlers here.
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// The format is:
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// ARMul_CoProAttach (state, CP Number, Init routine, Exit routine
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// LDC routine, STC routine, MRC routine, MCR routine,
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// CDP routine, Read Reg routine, Write Reg routine).
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if (state->is_v6) {
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ARMul_CoProAttach(state, 10, VFPInit, NULL, VFPLDC, VFPSTC,
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VFPMRC, VFPMCR, VFPMRRC, VFPMCRR, VFPCDP, NULL, NULL);
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ARMul_CoProAttach(state, 11, VFPInit, NULL, VFPLDC, VFPSTC,
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VFPMRC, VFPMCR, VFPMRRC, VFPMCRR, VFPCDP, NULL, NULL);
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/*ARMul_CoProAttach (state, 15, MMUInit, NULL, NULL, NULL,
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MMUMRC, MMUMCR, NULL, NULL, NULL, NULL, NULL);*/
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}
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// No handlers below here.
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// Call all the initialisation routines.
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for (unsigned int i = 0; i < 16; i++) {
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if (state->CPInit[i])
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(state->CPInit[i]) (state);
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}
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}
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// Install co-processor finalisation routines in this routine.
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void ARMul_CoProExit(ARMul_State * state)
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{
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for (unsigned int i = 0; i < 16; i++)
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if (state->CPExit[i])
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(state->CPExit[i]) (state);
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// Detach all handlers.
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for (unsigned int i = 0; i < 16; i++)
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ARMul_CoProDetach(state, i);
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}
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// Routines to hook Co-processors into ARMulator.
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void
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ARMul_CoProAttach(ARMul_State* state,
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unsigned number,
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ARMul_CPInits* init,
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ARMul_CPExits* exit,
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ARMul_LDCs* ldc,
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ARMul_STCs* stc,
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ARMul_MRCs* mrc,
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ARMul_MCRs* mcr,
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ARMul_MRRCs* mrrc,
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ARMul_MCRRs* mcrr,
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ARMul_CDPs* cdp,
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ARMul_CPReads* read, ARMul_CPWrites* write)
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{
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if (init != NULL)
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state->CPInit[number] = init;
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if (exit != NULL)
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state->CPExit[number] = exit;
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if (ldc != NULL)
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state->LDC[number] = ldc;
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if (stc != NULL)
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state->STC[number] = stc;
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if (mrc != NULL)
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state->MRC[number] = mrc;
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if (mcr != NULL)
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state->MCR[number] = mcr;
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if (mrrc != NULL)
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state->MRRC[number] = mrrc;
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if (mcrr != NULL)
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state->MCRR[number] = mcrr;
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if (cdp != NULL)
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state->CDP[number] = cdp;
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if (read != NULL)
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state->CPRead[number] = read;
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if (write != NULL)
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state->CPWrite[number] = write;
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}
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void ARMul_CoProDetach(ARMul_State* state, unsigned number)
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{
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ARMul_CoProAttach(state, number, NULL, NULL,
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NoCoPro4R, NoCoPro4W, NoCoPro4W, NoCoPro4R,
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NoCoPro5W, NoCoPro5R, NoCoPro3R, NULL, NULL);
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state->CPInit[number] = NULL;
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state->CPExit[number] = NULL;
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state->CPRead[number] = NULL;
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state->CPWrite[number] = NULL;
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}
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