From 6b73e4566be4ba41f473866e9f42dbb8804b923c Mon Sep 17 00:00:00 2001 From: Lioncash Date: Sat, 25 Jul 2015 20:01:44 -0400 Subject: dyncom: Move arminit.cpp and armsupp.cpp into skyeye_common --- src/core/arm/skyeye_common/arminit.cpp | 128 +++++++++++++++++++++++++++++++++ 1 file changed, 128 insertions(+) create mode 100644 src/core/arm/skyeye_common/arminit.cpp (limited to 'src/core/arm/skyeye_common/arminit.cpp') diff --git a/src/core/arm/skyeye_common/arminit.cpp b/src/core/arm/skyeye_common/arminit.cpp new file mode 100644 index 000000000..4f7a48fab --- /dev/null +++ b/src/core/arm/skyeye_common/arminit.cpp @@ -0,0 +1,128 @@ +/* arminit.c -- ARMulator initialization: ARM6 Instruction Emulator. + Copyright (C) 1994 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 +#include "core/arm/skyeye_common/armdefs.h" +#include "core/arm/skyeye_common/vfp/vfp.h" + +/***************************************************************************\ +* Returns a new instantiation of the ARMulator's state * +\***************************************************************************/ +ARMul_State* ARMul_NewState(ARMul_State* state) +{ + state->Emulate = RUN; + state->Mode = USER32MODE; + + state->lateabtSig = HIGH; + state->bigendSig = LOW; + + return state; +} + +/***************************************************************************\ +* Call this routine to set ARMulator to model a certain processor * +\***************************************************************************/ + +void ARMul_SelectProcessor(ARMul_State* state, unsigned properties) +{ + state->is_v4 = (properties & (ARM_v4_Prop | ARM_v5_Prop)) != 0; + state->is_v5 = (properties & ARM_v5_Prop) != 0; + state->is_v5e = (properties & ARM_v5e_Prop) != 0; + state->is_v6 = (properties & ARM_v6_Prop) != 0; + state->is_v7 = (properties & ARM_v7_Prop) != 0; +} + +// Resets certain MPCore CP15 values to their ARM-defined reset values. +static void ResetMPCoreCP15Registers(ARMul_State* cpu) +{ + // c0 + cpu->CP15[CP15_MAIN_ID] = 0x410FB024; + cpu->CP15[CP15_TLB_TYPE] = 0x00000800; + cpu->CP15[CP15_PROCESSOR_FEATURE_0] = 0x00000111; + cpu->CP15[CP15_PROCESSOR_FEATURE_1] = 0x00000001; + cpu->CP15[CP15_DEBUG_FEATURE_0] = 0x00000002; + cpu->CP15[CP15_MEMORY_MODEL_FEATURE_0] = 0x01100103; + cpu->CP15[CP15_MEMORY_MODEL_FEATURE_1] = 0x10020302; + cpu->CP15[CP15_MEMORY_MODEL_FEATURE_2] = 0x01222000; + cpu->CP15[CP15_MEMORY_MODEL_FEATURE_3] = 0x00000000; + cpu->CP15[CP15_ISA_FEATURE_0] = 0x00100011; + cpu->CP15[CP15_ISA_FEATURE_1] = 0x12002111; + cpu->CP15[CP15_ISA_FEATURE_2] = 0x11221011; + cpu->CP15[CP15_ISA_FEATURE_3] = 0x01102131; + cpu->CP15[CP15_ISA_FEATURE_4] = 0x00000141; + + // c1 + cpu->CP15[CP15_CONTROL] = 0x00054078; + cpu->CP15[CP15_AUXILIARY_CONTROL] = 0x0000000F; + cpu->CP15[CP15_COPROCESSOR_ACCESS_CONTROL] = 0x00000000; + + // c2 + cpu->CP15[CP15_TRANSLATION_BASE_TABLE_0] = 0x00000000; + cpu->CP15[CP15_TRANSLATION_BASE_TABLE_1] = 0x00000000; + cpu->CP15[CP15_TRANSLATION_BASE_CONTROL] = 0x00000000; + + // c3 + cpu->CP15[CP15_DOMAIN_ACCESS_CONTROL] = 0x00000000; + + // c7 + cpu->CP15[CP15_PHYS_ADDRESS] = 0x00000000; + + // c9 + cpu->CP15[CP15_DATA_CACHE_LOCKDOWN] = 0xFFFFFFF0; + + // c10 + cpu->CP15[CP15_TLB_LOCKDOWN] = 0x00000000; + cpu->CP15[CP15_PRIMARY_REGION_REMAP] = 0x00098AA4; + cpu->CP15[CP15_NORMAL_REGION_REMAP] = 0x44E048E0; + + // c13 + cpu->CP15[CP15_PID] = 0x00000000; + cpu->CP15[CP15_CONTEXT_ID] = 0x00000000; + cpu->CP15[CP15_THREAD_UPRW] = 0x00000000; + cpu->CP15[CP15_THREAD_URO] = 0x00000000; + cpu->CP15[CP15_THREAD_PRW] = 0x00000000; + + // c15 + cpu->CP15[CP15_PERFORMANCE_MONITOR_CONTROL] = 0x00000000; + cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_VIRT_ADDRESS] = 0x00000000; + cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_PHYS_ADDRESS] = 0x00000000; + cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_ATTRIBUTE] = 0x00000000; + cpu->CP15[CP15_TLB_DEBUG_CONTROL] = 0x00000000; +} + +/***************************************************************************\ +* Call this routine to set up the initial machine state (or perform a RESET * +\***************************************************************************/ +void ARMul_Reset(ARMul_State* state) +{ + VFPInit(state); + + state->Reg[15] = 0; + state->Cpsr = INTBITS | SVC32MODE; + state->Mode = SVC32MODE; + state->Bank = SVCBANK; + + ResetMPCoreCP15Registers(state); + + state->NresetSig = HIGH; + state->NfiqSig = HIGH; + state->NirqSig = HIGH; + state->NtransSig = (state->Mode & 3) ? HIGH : LOW; + state->abortSig = LOW; + + state->NumInstrs = 0; +} -- cgit v1.2.3 From dfb424b6d1238fed41cf1305ae1b330d5c4c5a0d Mon Sep 17 00:00:00 2001 From: Lioncash Date: Sat, 25 Jul 2015 21:10:41 -0400 Subject: dyncom: Rename armdefs.h to armstate.h --- src/core/arm/skyeye_common/arminit.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/core/arm/skyeye_common/arminit.cpp') diff --git a/src/core/arm/skyeye_common/arminit.cpp b/src/core/arm/skyeye_common/arminit.cpp index 4f7a48fab..4e868f86b 100644 --- a/src/core/arm/skyeye_common/arminit.cpp +++ b/src/core/arm/skyeye_common/arminit.cpp @@ -16,7 +16,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include -#include "core/arm/skyeye_common/armdefs.h" +#include "core/arm/skyeye_common/armstate.h" #include "core/arm/skyeye_common/vfp/vfp.h" /***************************************************************************\ -- cgit v1.2.3 From 03213f893e7f2cbd692144334ac72d9138fd5e70 Mon Sep 17 00:00:00 2001 From: Lioncash Date: Sat, 25 Jul 2015 21:55:52 -0400 Subject: dyncom: Remove unnecessary initialization code. Targeting ARM version variants was only a thing on armemu. The reset routine also does basically the same thing as NewState. --- src/core/arm/skyeye_common/arminit.cpp | 32 ++------------------------------ 1 file changed, 2 insertions(+), 30 deletions(-) (limited to 'src/core/arm/skyeye_common/arminit.cpp') diff --git a/src/core/arm/skyeye_common/arminit.cpp b/src/core/arm/skyeye_common/arminit.cpp index 4e868f86b..b7c508d75 100644 --- a/src/core/arm/skyeye_common/arminit.cpp +++ b/src/core/arm/skyeye_common/arminit.cpp @@ -19,33 +19,6 @@ #include "core/arm/skyeye_common/armstate.h" #include "core/arm/skyeye_common/vfp/vfp.h" -/***************************************************************************\ -* Returns a new instantiation of the ARMulator's state * -\***************************************************************************/ -ARMul_State* ARMul_NewState(ARMul_State* state) -{ - state->Emulate = RUN; - state->Mode = USER32MODE; - - state->lateabtSig = HIGH; - state->bigendSig = LOW; - - return state; -} - -/***************************************************************************\ -* Call this routine to set ARMulator to model a certain processor * -\***************************************************************************/ - -void ARMul_SelectProcessor(ARMul_State* state, unsigned properties) -{ - state->is_v4 = (properties & (ARM_v4_Prop | ARM_v5_Prop)) != 0; - state->is_v5 = (properties & ARM_v5_Prop) != 0; - state->is_v5e = (properties & ARM_v5e_Prop) != 0; - state->is_v6 = (properties & ARM_v6_Prop) != 0; - state->is_v7 = (properties & ARM_v7_Prop) != 0; -} - // Resets certain MPCore CP15 values to their ARM-defined reset values. static void ResetMPCoreCP15Registers(ARMul_State* cpu) { @@ -104,9 +77,7 @@ static void ResetMPCoreCP15Registers(ARMul_State* cpu) cpu->CP15[CP15_TLB_DEBUG_CONTROL] = 0x00000000; } -/***************************************************************************\ -* Call this routine to set up the initial machine state (or perform a RESET * -\***************************************************************************/ +// Performs a reset void ARMul_Reset(ARMul_State* state) { VFPInit(state); @@ -125,4 +96,5 @@ void ARMul_Reset(ARMul_State* state) state->abortSig = LOW; state->NumInstrs = 0; + state->Emulate = RUN; } -- cgit v1.2.3