diff options
author | bunnei <bunneidev@gmail.com> | 2015-02-13 05:18:40 +0100 |
---|---|---|
committer | bunnei <bunneidev@gmail.com> | 2015-02-13 05:18:40 +0100 |
commit | 9b69079c835352fd7727e89624accb5115d35d36 (patch) | |
tree | 9b1f0a7cf06bde6cbaac3230fbdbba824e7fcdfc /src | |
parent | Merge pull request #568 from lioncash/assert (diff) | |
parent | dyncom: Switch the app and system cores into the correct mode at initialization (diff) | |
download | yuzu-9b69079c835352fd7727e89624accb5115d35d36.tar yuzu-9b69079c835352fd7727e89624accb5115d35d36.tar.gz yuzu-9b69079c835352fd7727e89624accb5115d35d36.tar.bz2 yuzu-9b69079c835352fd7727e89624accb5115d35d36.tar.lz yuzu-9b69079c835352fd7727e89624accb5115d35d36.tar.xz yuzu-9b69079c835352fd7727e89624accb5115d35d36.tar.zst yuzu-9b69079c835352fd7727e89624accb5115d35d36.zip |
Diffstat (limited to '')
-rw-r--r-- | src/core/arm/dyncom/arm_dyncom.cpp | 17 | ||||
-rw-r--r-- | src/core/arm/dyncom/arm_dyncom.h | 2 | ||||
-rw-r--r-- | src/core/arm/dyncom/arm_dyncom_run.cpp | 17 | ||||
-rw-r--r-- | src/core/arm/interpreter/arminit.cpp | 7 | ||||
-rw-r--r-- | src/core/arm/skyeye_common/armdefs.h | 4 | ||||
-rw-r--r-- | src/core/arm/skyeye_common/vfp/vfp.cpp | 5 | ||||
-rw-r--r-- | src/core/core.cpp | 9 |
7 files changed, 28 insertions, 33 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom.cpp b/src/core/arm/dyncom/arm_dyncom.cpp index c4af85242..bbcbbdd2b 100644 --- a/src/core/arm/dyncom/arm_dyncom.cpp +++ b/src/core/arm/dyncom/arm_dyncom.cpp @@ -7,6 +7,7 @@ #include "core/arm/dyncom/arm_dyncom.h" #include "core/arm/dyncom/arm_dyncom_interpreter.h" +#include "core/arm/dyncom/arm_dyncom_run.h" #include "core/core.h" #include "core/core_timing.h" @@ -15,29 +16,29 @@ const static cpu_config_t s_arm11_cpu_info = { "armv6", "arm11", 0x0007b000, 0x0007f000, NONCACHE }; -ARM_DynCom::ARM_DynCom() { +ARM_DynCom::ARM_DynCom(PrivilegeMode initial_mode) { state = std::unique_ptr<ARMul_State>(new ARMul_State); ARMul_NewState(state.get()); + ARMul_SelectProcessor(state.get(), ARM_v6_Prop | ARM_v5_Prop | ARM_v5e_Prop); state->abort_model = ABORT_BASE_RESTORED; state->cpu = (cpu_config_t*)&s_arm11_cpu_info; - state->bigendSig = LOW; - ARMul_SelectProcessor(state.get(), ARM_v6_Prop | ARM_v5_Prop | ARM_v5e_Prop); + state->bigendSig = LOW; state->lateabtSig = LOW; + state->NirqSig = HIGH; // Reset the core to initial state - ARMul_CoProInit(state.get()); ARMul_Reset(state.get()); state->NextInstr = RESUME; // NOTE: This will be overwritten by LoadContext state->Emulate = RUN; - state->Reg[15] = 0x00000000; - state->Reg[13] = 0x10000000; // Set stack pointer to the top of the stack - state->NirqSig = HIGH; + // Switch to the desired privilege mode. + switch_mode(state.get(), initial_mode); - VFPInit(state.get()); // Initialize the VFP + state->Reg[13] = 0x10000000; // Set stack pointer to the top of the stack + state->Reg[15] = 0x00000000; } ARM_DynCom::~ARM_DynCom() { diff --git a/src/core/arm/dyncom/arm_dyncom.h b/src/core/arm/dyncom/arm_dyncom.h index 9e2dda843..213cac1ad 100644 --- a/src/core/arm/dyncom/arm_dyncom.h +++ b/src/core/arm/dyncom/arm_dyncom.h @@ -13,7 +13,7 @@ class ARM_DynCom final : virtual public ARM_Interface { public: - ARM_DynCom(); + ARM_DynCom(PrivilegeMode initial_mode); ~ARM_DynCom(); void SetPC(u32 pc) override; diff --git a/src/core/arm/dyncom/arm_dyncom_run.cpp b/src/core/arm/dyncom/arm_dyncom_run.cpp index 15677da27..d79e3e4b2 100644 --- a/src/core/arm/dyncom/arm_dyncom_run.cpp +++ b/src/core/arm/dyncom/arm_dyncom_run.cpp @@ -2,9 +2,6 @@ // Licensed under GPLv2 or any later version // Refer to the license.txt file included. -#include <assert.h> - -#include "common/logging/log.h" #include "core/arm/skyeye_common/armdefs.h" void switch_mode(arm_core_t *core, uint32_t mode) { @@ -13,6 +10,7 @@ void switch_mode(arm_core_t *core, uint32_t mode) { if (mode != USERBANK) { switch (core->Mode) { + case SYSTEM32MODE: // Shares registers with user mode case USER32MODE: core->Reg_usr[0] = core->Reg[13]; core->Reg_usr[1] = core->Reg[14]; @@ -42,7 +40,6 @@ void switch_mode(arm_core_t *core, uint32_t mode) { core->Reg_firq[1] = core->Reg[14]; core->Spsr[FIQBANK] = core->Spsr_copy; break; - } switch (mode) { @@ -81,11 +78,15 @@ void switch_mode(arm_core_t *core, uint32_t mode) { core->Spsr_copy = core->Spsr[FIQBANK]; core->Bank = FIQBANK; break; - + case SYSTEM32MODE: // Shares registers with user mode. + core->Reg[13] = core->Reg_usr[0]; + core->Reg[14] = core->Reg_usr[1]; + core->Bank = SYSTEMBANK; + break; } + + // Set the mode bits in the APSR + core->Cpsr = (core->Cpsr & ~core->Mode) | mode; core->Mode = mode; - } else { - LOG_CRITICAL(Core_ARM11, "user mode"); - exit(-2); } } diff --git a/src/core/arm/interpreter/arminit.cpp b/src/core/arm/interpreter/arminit.cpp index 0c0ce6c91..d3174c9a0 100644 --- a/src/core/arm/interpreter/arminit.cpp +++ b/src/core/arm/interpreter/arminit.cpp @@ -64,10 +64,9 @@ void ARMul_SelectProcessor(ARMul_State* state, unsigned properties) state->is_pxa27x = (properties & ARM_PXA27X_Prop) != 0; state->is_v7 = (properties & ARM_v7_Prop) != 0; - /* Only initialse the coprocessor support once we - know what kind of chip we are dealing with. */ - //ARMul_CoProInit (state); - + // Only initialse the coprocessor support once we + // know what kind of chip we are dealing with. + ARMul_CoProInit(state); } /***************************************************************************\ diff --git a/src/core/arm/skyeye_common/armdefs.h b/src/core/arm/skyeye_common/armdefs.h index 02f54f385..dc2256a35 100644 --- a/src/core/arm/skyeye_common/armdefs.h +++ b/src/core/arm/skyeye_common/armdefs.h @@ -270,7 +270,7 @@ enum { * Mode and Bank Constants * \***************************************************************************/ -enum { +enum PrivilegeMode { USER32MODE = 16, FIQ32MODE = 17, IRQ32MODE = 18, @@ -288,7 +288,7 @@ enum { ABORTBANK = 4, UNDEFBANK = 5, DUMMYBANK = 6, - SYSTEMBANK = USERBANK + SYSTEMBANK = 7 }; /***************************************************************************\ diff --git a/src/core/arm/skyeye_common/vfp/vfp.cpp b/src/core/arm/skyeye_common/vfp/vfp.cpp index 1cf146c53..6f22923bb 100644 --- a/src/core/arm/skyeye_common/vfp/vfp.cpp +++ b/src/core/arm/skyeye_common/vfp/vfp.cpp @@ -26,8 +26,6 @@ #include "core/arm/skyeye_common/vfp/asm_vfp.h" #include "core/arm/skyeye_common/vfp/vfp.h" -//ARMul_State* persistent_state; /* function calls from SoftFloat lib don't have an access to ARMul_state. */ - unsigned VFPInit(ARMul_State* state) { state->VFP[VFP_OFFSET(VFP_FPSID)] = VFP_FPSID_IMPLMEN<<24 | VFP_FPSID_SW<<23 | VFP_FPSID_SUBARCH<<16 | @@ -35,9 +33,6 @@ unsigned VFPInit(ARMul_State* state) state->VFP[VFP_OFFSET(VFP_FPEXC)] = 0; state->VFP[VFP_OFFSET(VFP_FPSCR)] = 0; - //persistent_state = state; - /* Reset only specify VFP_FPEXC_EN = '0' */ - return 0; } diff --git a/src/core/core.cpp b/src/core/core.cpp index 63be27be2..15787bc17 100644 --- a/src/core/core.cpp +++ b/src/core/core.cpp @@ -56,11 +56,10 @@ void Stop() { /// Initialize the core int Init() { - LOG_DEBUG(Core, "initialized OK"); - - g_sys_core = new ARM_DynCom(); - g_app_core = new ARM_DynCom(); + g_sys_core = new ARM_DynCom(USER32MODE); + g_app_core = new ARM_DynCom(USER32MODE); + LOG_DEBUG(Core, "Initialized OK"); return 0; } @@ -68,7 +67,7 @@ void Shutdown() { delete g_app_core; delete g_sys_core; - LOG_DEBUG(Core, "shutdown OK"); + LOG_DEBUG(Core, "Shutdown OK"); } } // namespace |