summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--src/core/arm/dyncom/arm_dyncom_dec.cpp11
-rw-r--r--src/core/arm/dyncom/arm_dyncom_dec.h216
-rw-r--r--src/core/arm/dyncom/arm_dyncom_interpreter.cpp282
3 files changed, 282 insertions, 227 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom_dec.cpp b/src/core/arm/dyncom/arm_dyncom_dec.cpp
index 333b40f54..0927eece1 100644
--- a/src/core/arm/dyncom/arm_dyncom_dec.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_dec.cpp
@@ -136,7 +136,6 @@ const ISEITEM arm_instruction[] = {
{ "pkhbt", 2, 6, 20, 27, 0x00000068, 4, 6, 0x00000001 },
{ "smul", 3, 4, 20, 27, 0x00000016, 7, 7, 0x00000001, 4, 4, 0x00000000 },
{ "smlalxy", 3, 4, 20, 27, 0x00000014, 7, 7, 0x00000001, 4, 4, 0x00000000 },
- // {"smlal" , 2 , 4 , 21, 27, 0x00000007, 4, 7, 0x00000009},
{ "smla", 3, 4, 20, 27, 0x00000010, 7, 7, 0x00000001, 4, 4, 0x00000000 },
{ "mcrr", 1, 6, 20, 27, 0x000000c4 },
{ "mrrc", 1, 6, 20, 27, 0x000000c5 },
@@ -194,6 +193,10 @@ const ISEITEM arm_instruction[] = {
{ "ldc", 2, 0, 25, 27, 0x00000006, 20, 20, 0x00000001 },
{ "swi", 1, 0, 24, 27, 0x0000000f },
{ "bbl", 1, 0, 25, 27, 0x00000005 },
+ { "ldrexd", 2, ARMV6K, 20, 27, 0x0000001B, 4, 7, 0x00000009 },
+ { "strexd", 2, ARMV6K, 20, 27, 0x0000001A, 4, 7, 0x00000009 },
+ { "ldrexh", 2, ARMV6K, 20, 27, 0x0000001F, 4, 7, 0x00000009 },
+ { "strexh", 2, ARMV6K, 20, 27, 0x0000001E, 4, 7, 0x00000009 },
};
const ISEITEM arm_exclusion_code[] = {
@@ -383,6 +386,11 @@ const ISEITEM arm_exclusion_code[] = {
{ "ldc", 0, 0, 0 },
{ "swi", 0, 0, 0 },
{ "bbl", 0, 0, 0 },
+ { "ldrexd", 0, ARMV6K, 0 },
+ { "strexd", 0, ARMV6K, 0 },
+ { "ldrexh", 0, ARMV6K, 0 },
+ { "strexh", 0, ARMV6K, 0 },
+
{ "bl_1_thumb", 0, INVALID, 0 }, // Should be table[-4]
{ "bl_2_thumb", 0, INVALID, 0 }, // Should be located at the end of the table[-3]
{ "blx_1_thumb", 0, INVALID, 0 }, // Should be located at table[-2]
@@ -395,6 +403,7 @@ int decode_arm_instr(uint32_t instr, int32_t *idx) {
int ret = DECODE_FAILURE;
int i = 0;
int instr_slots = sizeof(arm_instruction) / sizeof(ISEITEM);
+
for (i = 0; i < instr_slots; i++) {
n = arm_instruction[i].attribute_value;
base = 0;
diff --git a/src/core/arm/dyncom/arm_dyncom_dec.h b/src/core/arm/dyncom/arm_dyncom_dec.h
index 70eb96e93..58784aeea 100644
--- a/src/core/arm/dyncom/arm_dyncom_dec.h
+++ b/src/core/arm/dyncom/arm_dyncom_dec.h
@@ -1,153 +1,117 @@
-/* Copyright (C)
-* 2012 - Michael.Kang blackfin.kang@gmail.com
-* 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.
-*
-*/
-
-/**
-* @file arm_dyncom_dec.h
-* @brief Some common utility for arm instruction decoder
-* @author Michael.Kang blackfin.kang@gmail.com
-* @version 7849
-* @date 2012-03-15
-*/
-
-#ifndef __ARM_DYNCOM_DEC__
-#define __ARM_DYNCOM_DEC__
-
-#define BITS(a,b) ((instr >> (a)) & ((1 << (1+(b)-(a)))-1))
-#define BIT(n) ((instr >> (n)) & 1)
-#define BAD do{printf("meet BAD at %s, instr is %x\n", __FUNCTION__, instr ); /*exit(0);*/}while(0);
-#define ptr_N cpu->ptr_N
-#define ptr_Z cpu->ptr_Z
-#define ptr_C cpu->ptr_C
-#define ptr_V cpu->ptr_V
-#define ptr_I cpu->ptr_I
-#define ptr_T cpu->ptr_T
-#define ptr_CPSR cpu->ptr_gpr[16]
-
-/* for MUL instructions */
-/*xxxx xxxx xxxx 1111 xxxx xxxx xxxx xxxx */
-#define RDHi ((instr >> 16) & 0xF)
-/*xxxx xxxx xxxx xxxx 1111 xxxx xxxx xxxx */
-#define RDLo ((instr >> 12) & 0xF)
-/*xxxx xxxx xxxx 1111 xxxx xxxx xxxx xxxx */
-#define MUL_RD ((instr >> 16) & 0xF)
-/*xxxx xxxx xxxx xxxx 1111 xxxx xxxx xxxx */
-#define MUL_RN ((instr >> 12) & 0xF)
-/*xxxx xxxx xxxx xxxx xxxx 1111 xxxx xxxx */
-#define RS ((instr >> 8) & 0xF)
-
-/*xxxx xxxx xxxx xxxx 1111 xxxx xxxx xxxx */
-#define RD ((instr >> 12) & 0xF)
-/*xxxx xxxx xxxx 1111 xxxx xxxx xxxx xxxx */
-#define RN ((instr >> 16) & 0xF)
-/*xxxx xxxx xxxx xxxx xxxx xxxx xxxx 1111 */
-#define RM (instr & 0xF)
-
-/* CP15 registers */
-#define OPCODE_1 BITS(21, 23)
-#define CRn BITS(16, 19)
-#define CRm BITS(0, 3)
-#define OPCODE_2 BITS(5, 7)
-
-/*xxxx xx1x xxxx xxxx xxxx xxxx xxxx xxxx */
-#define I BIT(25)
-/*xxxx xxxx xxx1 xxxx xxxx xxxx xxxx xxxx */
-#define S BIT(20)
-
-#define SHIFT BITS(5,6)
-#define SHIFT_IMM BITS(7,11)
-#define IMMH BITS(8,11)
-#define IMML BITS(0,3)
-
-#define LSPBIT BIT(24)
-#define LSUBIT BIT(23)
-#define LSBBIT BIT(22)
-#define LSWBIT BIT(21)
-#define LSLBIT BIT(20)
-#define LSSHBITS BITS(5,6)
-#define OFFSET12 BITS(0,11)
-#define SBIT BIT(20)
-#define DESTReg (BITS (12, 15))
-
-/* they are in unused state, give a corrent value when using */
+// Copyright 2012 Michael Kang, 2015 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#define BITS(a,b) ((instr >> (a)) & ((1 << (1+(b)-(a)))-1))
+#define BIT(n) ((instr >> (n)) & 1)
+#define BAD do { printf("meet BAD at %s, instr is %x\n", __FUNCTION__, instr ); } while(0);
+#define ptr_N cpu->ptr_N
+#define ptr_Z cpu->ptr_Z
+#define ptr_C cpu->ptr_C
+#define ptr_V cpu->ptr_V
+#define ptr_I cpu->ptr_I
+#define ptr_T cpu->ptr_T
+#define ptr_CPSR cpu->ptr_gpr[16]
+
+// For MUL instructions
+#define RDHi ((instr >> 16) & 0xF)
+#define RDLo ((instr >> 12) & 0xF)
+#define MUL_RD ((instr >> 16) & 0xF)
+#define MUL_RN ((instr >> 12) & 0xF)
+#define RS ((instr >> 8) & 0xF)
+#define RD ((instr >> 12) & 0xF)
+#define RN ((instr >> 16) & 0xF)
+#define RM (instr & 0xF)
+
+// CP15 registers
+#define OPCODE_1 BITS(21, 23)
+#define CRn BITS(16, 19)
+#define CRm BITS(0, 3)
+#define OPCODE_2 BITS(5, 7)
+
+#define I BIT(25)
+#define S BIT(20)
+
+#define SHIFT BITS(5,6)
+#define SHIFT_IMM BITS(7,11)
+#define IMMH BITS(8,11)
+#define IMML BITS(0,3)
+
+#define LSPBIT BIT(24)
+#define LSUBIT BIT(23)
+#define LSBBIT BIT(22)
+#define LSWBIT BIT(21)
+#define LSLBIT BIT(20)
+#define LSSHBITS BITS(5,6)
+#define OFFSET12 BITS(0,11)
+#define SBIT BIT(20)
+#define DESTReg (BITS (12, 15))
+
+// They are in unused state, give a corrent value when using
#define IS_V5E 0
#define IS_V5 0
#define IS_V6 0
#define LHSReg 0
-/* temp define the using the pc reg need implement a flow */
-#define STORE_CHECK_RD_PC ADD(R(RD), CONST(INSTR_SIZE * 2))
+// Temp define the using the pc reg need implement a flow
+#define STORE_CHECK_RD_PC ADD(R(RD), CONST(INSTR_SIZE * 2))
-#define OPERAND operand(cpu,instr,bb,NULL)
-#define SCO_OPERAND(sco) operand(cpu,instr,bb,sco)
-#define BOPERAND boperand(instr)
+#define OPERAND operand(cpu,instr,bb,NULL)
+#define SCO_OPERAND(sco) operand(cpu,instr,bb,sco)
+#define BOPERAND boperand(instr)
-#define CHECK_RN_PC (RN==15? ADD(AND(R(RN), CONST(~0x1)), CONST(INSTR_SIZE * 2)):R(RN))
-#define CHECK_RN_PC_WA (RN==15? ADD(AND(R(RN), CONST(~0x3)), CONST(INSTR_SIZE * 2)):R(RN))
+#define CHECK_RN_PC (RN == 15 ? ADD(AND(R(RN), CONST(~0x1)), CONST(INSTR_SIZE * 2)) : R(RN))
+#define CHECK_RN_PC_WA (RN == 15 ? ADD(AND(R(RN), CONST(~0x3)), CONST(INSTR_SIZE * 2)) : R(RN))
-#define GET_USER_MODE() (OR(ICMP_EQ(R(MODE_REG), CONST(USER32MODE)), ICMP_EQ(R(MODE_REG), CONST(SYSTEM32MODE))))
+#define GET_USER_MODE() (OR(ICMP_EQ(R(MODE_REG), CONST(USER32MODE)), ICMP_EQ(R(MODE_REG), CONST(SYSTEM32MODE))))
int decode_arm_instr(uint32_t instr, int32_t *idx);
enum DECODE_STATUS {
- DECODE_SUCCESS,
- DECODE_FAILURE
+ DECODE_SUCCESS,
+ DECODE_FAILURE
};
struct instruction_set_encoding_item {
- const char *name;
- int attribute_value;
- int version;
- u32 content[21];
+ const char *name;
+ int attribute_value;
+ int version;
+ u32 content[21];
};
typedef struct instruction_set_encoding_item ISEITEM;
-#define RECORD_WB(value, flag) {cpu->dyncom_engine->wb_value = value;cpu->dyncom_engine->wb_flag = flag;}
+#define RECORD_WB(value, flag) { cpu->dyncom_engine->wb_value = value;cpu->dyncom_engine->wb_flag = flag; }
#define INIT_WB(wb_value, wb_flag) RECORD_WB(wb_value, wb_flag)
-#define EXECUTE_WB(base_reg) {if(cpu->dyncom_engine->wb_flag) \
- LET(base_reg, cpu->dyncom_engine->wb_value);}
-inline int get_reg_count(uint32_t instr){
- int i = BITS(0,15);
- int count = 0;
- while(i){
- if(i & 1)
- count ++;
- i = i >> 1;
- }
- return count;
+#define EXECUTE_WB(base_reg) { if(cpu->dyncom_engine->wb_flag) LET(base_reg, cpu->dyncom_engine->wb_value); }
+
+inline int get_reg_count(uint32_t instr) {
+ int i = BITS(0, 15);
+ int count = 0;
+ while (i) {
+ if (i & 1)
+ count++;
+ i = i >> 1;
+ }
+ return count;
}
enum ARMVER {
- INVALID = 0,
- ARMALL,
- ARMV4,
- ARMV4T,
- ARMV5T,
- ARMV5TE,
- ARMV5TEJ,
- ARMV6,
- ARM1176JZF_S,
- ARMVFP2,
- ARMVFP3
+ INVALID = 0,
+ ARMALL,
+ ARMV4,
+ ARMV4T,
+ ARMV5T,
+ ARMV5TE,
+ ARMV5TEJ,
+ ARMV6,
+ ARM1176JZF_S,
+ ARMVFP2,
+ ARMVFP3,
+ ARMV6K,
};
-//extern const INSTRACT arm_instruction_action[];
extern const ISEITEM arm_instruction[];
-
-#endif
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
index bc55a082f..5f09d8580 100644
--- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
@@ -622,9 +622,7 @@ void LdnStM(DecrementAfter)(arm_processor *cpu, unsigned int inst, unsigned int
}
unsigned int rn = CHECK_READ_REG15_WA(cpu, Rn);
unsigned int start_addr = rn - count * 4 + 4;
- unsigned int end_addr = rn;
- virt_addr = end_addr;
virt_addr = start_addr;
if (CondPassed(cpu, BITS(inst, 28, 31)) && BIT(inst, 21)) {
@@ -1104,10 +1102,10 @@ typedef struct _blx_1_thumb {
}blx_1_thumb;
typedef struct _pkh_inst {
- u32 Rm;
- u32 Rn;
- u32 Rd;
- u8 imm;
+ unsigned int Rm;
+ unsigned int Rn;
+ unsigned int Rd;
+ unsigned char imm;
} pkh_inst;
typedef arm_inst * ARM_INST_PTR;
@@ -1740,40 +1738,31 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(ldrd)(unsigned int inst, int index)
return inst_base;
}
-
ARM_INST_PTR INTERPRETER_TRANSLATE(ldrex)(unsigned int inst, int index)
{
- arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(ldst_inst));
- ldst_inst *inst_cream = (ldst_inst *)inst_base->component;
+ arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(generic_arm_inst));
+ generic_arm_inst *inst_cream = (generic_arm_inst *)inst_base->component;
inst_base->cond = BITS(inst, 28, 31);
- inst_base->idx = index;
- inst_base->br = NON_BRANCH;
+ inst_base->idx = index;
+ inst_base->br = (BITS(inst, 12, 15) == 15) ? INDIRECT_BRANCH : NON_BRANCH; // Branch if dest is R15
- inst_cream->inst = inst;
- //inst_cream->get_addr = get_calc_addr_op(inst);
+ inst_cream->Rn = BITS(inst, 16, 19);
+ inst_cream->Rd = BITS(inst, 12, 15);
- if (BITS(inst, 12, 15) == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
return inst_base;
}
ARM_INST_PTR INTERPRETER_TRANSLATE(ldrexb)(unsigned int inst, int index)
{
- arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(ldst_inst));
- ldst_inst *inst_cream = (ldst_inst *)inst_base->component;
-
- inst_base->cond = BITS(inst, 28, 31);
- inst_base->idx = index;
- inst_base->br = NON_BRANCH;
-
- inst_cream->inst = inst;
- inst_cream->get_addr = get_calc_addr_op(inst);
-
- if (BITS(inst, 12, 15) == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
- return inst_base;
+ return INTERPRETER_TRANSLATE(ldrex)(inst, index);
+}
+ARM_INST_PTR INTERPRETER_TRANSLATE(ldrexh)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(ldrex)(inst, index);
+}
+ARM_INST_PTR INTERPRETER_TRANSLATE(ldrexd)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(ldrex)(inst, index);
}
ARM_INST_PTR INTERPRETER_TRANSLATE(ldrh)(unsigned int inst, int index)
{
@@ -2623,37 +2612,30 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(strd)(unsigned int inst, int index){
}
ARM_INST_PTR INTERPRETER_TRANSLATE(strex)(unsigned int inst, int index)
{
- arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(ldst_inst));
- ldst_inst *inst_cream = (ldst_inst *)inst_base->component;
+ arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(generic_arm_inst));
+ generic_arm_inst *inst_cream = (generic_arm_inst *)inst_base->component;
inst_base->cond = BITS(inst, 28, 31);
- inst_base->idx = index;
- inst_base->br = NON_BRANCH;
+ inst_base->idx = index;
+ inst_base->br = NON_BRANCH;
- inst_cream->inst = inst;
- inst_cream->get_addr = get_calc_addr_op(inst);
+ inst_cream->Rn = BITS(inst, 16, 19);
+ inst_cream->Rd = BITS(inst, 12, 15);
+ inst_cream->Rm = BITS(inst, 0, 3);
- if (BITS(inst, 12, 15) == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
return inst_base;
}
ARM_INST_PTR INTERPRETER_TRANSLATE(strexb)(unsigned int inst, int index)
{
- arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(ldst_inst));
- ldst_inst *inst_cream = (ldst_inst *)inst_base->component;
-
- inst_base->cond = BITS(inst, 28, 31);
- inst_base->idx = index;
- inst_base->br = NON_BRANCH;
-
- inst_cream->inst = inst;
- inst_cream->get_addr = get_calc_addr_op(inst);
-
- if (BITS(inst, 12, 15) == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
- return inst_base;
+ return INTERPRETER_TRANSLATE(strex)(inst, index);
+}
+ARM_INST_PTR INTERPRETER_TRANSLATE(strexh)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(strex)(inst, index);
+}
+ARM_INST_PTR INTERPRETER_TRANSLATE(strexd)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(strex)(inst, index);
}
ARM_INST_PTR INTERPRETER_TRANSLATE(strh)(unsigned int inst, int index)
{
@@ -3355,6 +3337,11 @@ const transop_fp_t arm_instruction_trans[] = {
INTERPRETER_TRANSLATE(ldc),
INTERPRETER_TRANSLATE(swi),
INTERPRETER_TRANSLATE(bbl),
+ INTERPRETER_TRANSLATE(ldrexd),
+ INTERPRETER_TRANSLATE(strexd),
+ INTERPRETER_TRANSLATE(ldrexh),
+ INTERPRETER_TRANSLATE(strexh),
+
// All the thumb instructions should be placed the end of table
INTERPRETER_TRANSLATE(b_2_thumb),
INTERPRETER_TRANSLATE(b_cond_thumb),
@@ -3551,6 +3538,7 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
#define CRm inst_cream->crm
#define CP15_REG(n) cpu->CP15[CP15(n)]
#define RD cpu->Reg[inst_cream->Rd]
+ #define RD2 cpu->Reg[inst_cream->Rd + 1]
#define RN cpu->Reg[inst_cream->Rn]
#define RM cpu->Reg[inst_cream->Rm]
#define RS cpu->Reg[inst_cream->Rs]
@@ -3762,14 +3750,18 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
case 182: goto LDC_INST; \
case 183: goto SWI_INST; \
case 184: goto BBL_INST; \
- case 185: goto B_2_THUMB ; \
- case 186: goto B_COND_THUMB ; \
- case 187: goto BL_1_THUMB ; \
- case 188: goto BL_2_THUMB ; \
- case 189: goto BLX_1_THUMB ; \
- case 190: goto DISPATCH; \
- case 191: goto INIT_INST_LENGTH; \
- case 192: goto END; \
+ case 185: goto LDREXD_INST; \
+ case 186: goto STREXD_INST; \
+ case 187: goto LDREXH_INST; \
+ case 188: goto STREXH_INST; \
+ case 189: goto B_2_THUMB ; \
+ case 190: goto B_COND_THUMB ; \
+ case 191: goto BL_1_THUMB ; \
+ case 192: goto BL_2_THUMB ; \
+ case 193: goto BLX_1_THUMB ; \
+ case 194: goto DISPATCH; \
+ case 195: goto INIT_INST_LENGTH; \
+ case 196: goto END; \
}
#endif
@@ -3830,8 +3822,9 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
&&MLA_INST,&&SSAT_INST,&&USAT_INST,&&MRS_INST,&&MSR_INST,&&AND_INST,&&BIC_INST,&&LDM_INST,&&EOR_INST,&&ADD_INST,&&RSB_INST,&&RSC_INST,
&&SBC_INST,&&ADC_INST,&&SUB_INST,&&ORR_INST,&&MVN_INST,&&MOV_INST,&&STM_INST,&&LDM_INST,&&LDRSH_INST,&&STM_INST,&&LDM_INST,&&LDRSB_INST,
&&STRD_INST,&&LDRH_INST,&&STRH_INST,&&LDRD_INST,&&STRT_INST,&&STRBT_INST,&&LDRBT_INST,&&LDRT_INST,&&MRC_INST,&&MCR_INST,&&MSR_INST,
- &&LDRB_INST,&&STRB_INST,&&LDR_INST,&&LDRCOND_INST, &&STR_INST,&&CDP_INST,&&STC_INST,&&LDC_INST,&&SWI_INST,&&BBL_INST,&&B_2_THUMB, &&B_COND_THUMB,
- &&BL_1_THUMB, &&BL_2_THUMB, &&BLX_1_THUMB, &&DISPATCH,&&INIT_INST_LENGTH,&&END
+ &&LDRB_INST,&&STRB_INST,&&LDR_INST,&&LDRCOND_INST, &&STR_INST,&&CDP_INST,&&STC_INST,&&LDC_INST,&&SWI_INST,&&BBL_INST,&&LDREXD_INST,
+ &&STREXD_INST,&&LDREXH_INST,&&STREXH_INST,&&B_2_THUMB, &&B_COND_THUMB,&&BL_1_THUMB, &&BL_2_THUMB, &&BLX_1_THUMB, &&DISPATCH,
+ &&INIT_INST_LENGTH,&&END
};
#endif
arm_inst * inst_base;
@@ -4432,45 +4425,84 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
LDREX_INST:
{
- ldst_inst *inst_cream = (ldst_inst *)inst_base->component;
+ generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component;
if ((inst_base->cond == 0xe) || CondPassed(cpu, inst_base->cond)) {
- addr = cpu->Reg[BITS(inst_cream->inst, 16, 19)];
+ unsigned int read_addr = RN;
- unsigned int value = Memory::Read32(addr);
-
- add_exclusive_addr(cpu, addr);
+ add_exclusive_addr(cpu, read_addr);
cpu->exclusive_state = 1;
- cpu->Reg[BITS(inst_cream->inst, 12, 15)] = value;
- if (BITS(inst_cream->inst, 12, 15) == 15) {
- INC_PC(sizeof(ldst_inst));
+ RD = Memory::Read32(read_addr);
+ if (inst_cream->Rd == 15) {
+ INC_PC(sizeof(generic_arm_inst));
goto DISPATCH;
}
}
cpu->Reg[15] += GET_INST_SIZE(cpu);
- INC_PC(sizeof(ldst_inst));
+ INC_PC(sizeof(generic_arm_inst));
FETCH_INST;
GOTO_NEXT_INST;
}
LDREXB_INST:
{
- ldst_inst *inst_cream = (ldst_inst *)inst_base->component;
+ generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component;
if ((inst_base->cond == 0xe) || CondPassed(cpu, inst_base->cond)) {
- addr = cpu->Reg[BITS(inst_cream->inst, 16, 19)];
+ unsigned int read_addr = RN;
- unsigned int value = Memory::Read8(addr);
+ add_exclusive_addr(cpu, read_addr);
+ cpu->exclusive_state = 1;
+
+ RD = Memory::Read8(read_addr);
+ if (inst_cream->Rd == 15) {
+ INC_PC(sizeof(generic_arm_inst));
+ goto DISPATCH;
+ }
+ }
+ cpu->Reg[15] += GET_INST_SIZE(cpu);
+ INC_PC(sizeof(generic_arm_inst));
+ FETCH_INST;
+ GOTO_NEXT_INST;
+ }
+ LDREXH_INST:
+ {
+ generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component;
+ if ((inst_base->cond == 0xe) || CondPassed(cpu, inst_base->cond)) {
+ unsigned int read_addr = RN;
- add_exclusive_addr(cpu, addr);
+ add_exclusive_addr(cpu, read_addr);
cpu->exclusive_state = 1;
- cpu->Reg[BITS(inst_cream->inst, 12, 15)] = value;
- if (BITS(inst_cream->inst, 12, 15) == 15) {
- INC_PC(sizeof(ldst_inst));
+ RD = Memory::Read16(read_addr);
+ if (inst_cream->Rd == 15) {
+ INC_PC(sizeof(generic_arm_inst));
goto DISPATCH;
}
}
cpu->Reg[15] += GET_INST_SIZE(cpu);
- INC_PC(sizeof(ldst_inst));
+ INC_PC(sizeof(generic_arm_inst));
+ FETCH_INST;
+ GOTO_NEXT_INST;
+ }
+ LDREXD_INST:
+ {
+ generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component;
+ if ((inst_base->cond == 0xe) || CondPassed(cpu, inst_base->cond)) {
+ unsigned int read_addr = RN;
+
+ add_exclusive_addr(cpu, read_addr);
+ cpu->exclusive_state = 1;
+ // TODO(bunnei): Do we need to also make [read_addr + 4] exclusive?
+
+ RD = Memory::Read32(read_addr);
+ RD2 = Memory::Read32(read_addr + 4);
+
+ if (inst_cream->Rd == 15) {
+ INC_PC(sizeof(generic_arm_inst));
+ goto DISPATCH;
+ }
+ }
+ cpu->Reg[15] += GET_INST_SIZE(cpu);
+ INC_PC(sizeof(generic_arm_inst));
FETCH_INST;
GOTO_NEXT_INST;
}
@@ -5762,46 +5794,96 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
}
STREX_INST:
{
- ldst_inst *inst_cream = (ldst_inst *)inst_base->component;
+ generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component;
+
if ((inst_base->cond == 0xe) || CondPassed(cpu, inst_base->cond)) {
- addr = cpu->Reg[BITS(inst_cream->inst, 16, 19)];
- unsigned int value = cpu->Reg[BITS(inst_cream->inst, 0, 3)];
+ unsigned int write_addr = cpu->Reg[inst_cream->Rn];
- int dest_reg = BITS(inst_cream->inst, 12, 15);
- if((exclusive_detect(cpu, addr) == 0) && (cpu->exclusive_state == 1)){
- remove_exclusive(cpu, addr);
- cpu->Reg[dest_reg] = 0;
+ if ((exclusive_detect(cpu, write_addr) == 0) && (cpu->exclusive_state == 1)) {
+ remove_exclusive(cpu, write_addr);
cpu->exclusive_state = 0;
- Memory::Write32(addr, value);
+ Memory::Write32(write_addr, cpu->Reg[inst_cream->Rm]);
+ RD = 0;
} else {
// Failed to write due to mutex access
- cpu->Reg[dest_reg] = 1;
+ RD = 1;
}
}
cpu->Reg[15] += GET_INST_SIZE(cpu);
- INC_PC(sizeof(ldst_inst));
+ INC_PC(sizeof(generic_arm_inst));
FETCH_INST;
GOTO_NEXT_INST;
}
STREXB_INST:
{
- ldst_inst *inst_cream = (ldst_inst *)inst_base->component;
+ generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component;
+
if ((inst_base->cond == 0xe) || CondPassed(cpu, inst_base->cond)) {
- addr = cpu->Reg[BITS(inst_cream->inst, 16, 19)];
- unsigned int value = cpu->Reg[BITS(inst_cream->inst, 0, 3)] & 0xff;
- int dest_reg = BITS(inst_cream->inst, 12, 15);
- if((exclusive_detect(cpu, addr) == 0) && (cpu->exclusive_state == 1)){
- remove_exclusive(cpu, addr);
- cpu->Reg[dest_reg] = 0;
+ unsigned int write_addr = cpu->Reg[inst_cream->Rn];
+
+ if ((exclusive_detect(cpu, write_addr) == 0) && (cpu->exclusive_state == 1)) {
+ remove_exclusive(cpu, write_addr);
cpu->exclusive_state = 0;
- Memory::Write8(addr, value);
+
+ Memory::Write8(write_addr, cpu->Reg[inst_cream->Rm]);
+ RD = 0;
} else {
- cpu->Reg[dest_reg] = 1;
+ // Failed to write due to mutex access
+ RD = 1;
}
}
cpu->Reg[15] += GET_INST_SIZE(cpu);
- INC_PC(sizeof(ldst_inst));
+ INC_PC(sizeof(generic_arm_inst));
+ FETCH_INST;
+ GOTO_NEXT_INST;
+ }
+ STREXD_INST:
+ {
+ generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component;
+
+ if ((inst_base->cond == 0xe) || CondPassed(cpu, inst_base->cond)) {
+ unsigned int write_addr = cpu->Reg[inst_cream->Rn];
+
+ if ((exclusive_detect(cpu, write_addr) == 0) && (cpu->exclusive_state == 1)) {
+ remove_exclusive(cpu, write_addr);
+ cpu->exclusive_state = 0;
+ // TODO(bunnei): Remove exclusive from [write_addr + 4] if we implement this in LDREXD
+
+ Memory::Write32(write_addr, cpu->Reg[inst_cream->Rm]);
+ Memory::Write32(write_addr + 4, cpu->Reg[inst_cream->Rm + 1]);
+ RD = 0;
+ }
+ else {
+ // Failed to write due to mutex access
+ RD = 1;
+ }
+ }
+ cpu->Reg[15] += GET_INST_SIZE(cpu);
+ INC_PC(sizeof(generic_arm_inst));
+ FETCH_INST;
+ GOTO_NEXT_INST;
+ }
+ STREXH_INST:
+ {
+ generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component;
+
+ if ((inst_base->cond == 0xe) || CondPassed(cpu, inst_base->cond)) {
+ unsigned int write_addr = cpu->Reg[inst_cream->Rn];
+
+ if ((exclusive_detect(cpu, write_addr) == 0) && (cpu->exclusive_state == 1)) {
+ remove_exclusive(cpu, write_addr);
+ cpu->exclusive_state = 0;
+
+ Memory::Write16(write_addr, cpu->Reg[inst_cream->Rm]);
+ RD = 0;
+ } else {
+ // Failed to write due to mutex access
+ RD = 1;
+ }
+ }
+ cpu->Reg[15] += GET_INST_SIZE(cpu);
+ INC_PC(sizeof(generic_arm_inst));
FETCH_INST;
GOTO_NEXT_INST;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 14:46:17 +0100