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-rw-r--r--src/core/arm/dyncom/arm_dyncom_dec.cpp4
-rw-r--r--src/core/arm/dyncom/arm_dyncom_dec.h37
-rw-r--r--src/core/arm/dyncom/arm_dyncom_interpreter.cpp64
3 files changed, 64 insertions, 41 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom_dec.cpp b/src/core/arm/dyncom/arm_dyncom_dec.cpp
index 9f3b90fd0..12181d0ec 100644
--- a/src/core/arm/dyncom/arm_dyncom_dec.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_dec.cpp
@@ -413,7 +413,7 @@ int decode_arm_instr(uint32_t instr, int32_t *idx) {
if (instr != arm_instruction[i].content[base + 2]) {
break;
}
- } else if (BITS(arm_instruction[i].content[base], arm_instruction[i].content[base + 1]) != arm_instruction[i].content[base + 2]) {
+ } else if (BITS(instr, arm_instruction[i].content[base], arm_instruction[i].content[base + 1]) != arm_instruction[i].content[base + 2]) {
break;
}
base += 3;
@@ -429,7 +429,7 @@ int decode_arm_instr(uint32_t instr, int32_t *idx) {
if (n != 0) {
base = 0;
while (n) {
- if (BITS(arm_exclusion_code[i].content[base], arm_exclusion_code[i].content[base + 1]) != arm_exclusion_code[i].content[base + 2]) {
+ if (BITS(instr, arm_exclusion_code[i].content[base], arm_exclusion_code[i].content[base + 1]) != arm_exclusion_code[i].content[base + 2]) {
break;
}
base += 3;
diff --git a/src/core/arm/dyncom/arm_dyncom_dec.h b/src/core/arm/dyncom/arm_dyncom_dec.h
index ee8ff5992..4b5f5ad7e 100644
--- a/src/core/arm/dyncom/arm_dyncom_dec.h
+++ b/src/core/arm/dyncom/arm_dyncom_dec.h
@@ -4,43 +4,6 @@
#pragma once
-#define BITS(a,b) ((instr >> (a)) & ((1 << (1+(b)-(a)))-1))
-#define BIT(n) ((instr >> (n)) & 1)
-
-// 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))
-
int decode_arm_instr(uint32_t instr, int32_t *idx);
enum DECODE_STATUS {
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
index cfa6de8fc..2765cb36e 100644
--- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
@@ -2156,7 +2156,22 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(revsh)(unsigned int inst, int index)
return INTERPRETER_TRANSLATE(rev)(inst, index);
}
-static ARM_INST_PTR INTERPRETER_TRANSLATE(rfe)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("RFE"); }
+static ARM_INST_PTR INTERPRETER_TRANSLATE(rfe)(unsigned int inst, int index)
+{
+ arm_inst* const inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(ldst_inst));
+ ldst_inst* const inst_cream = (ldst_inst*)inst_base->component;
+
+ inst_base->cond = AL;
+ inst_base->idx = index;
+ inst_base->br = INDIRECT_BRANCH;
+ inst_base->load_r15 = 0;
+
+ inst_cream->inst = inst;
+ inst_cream->get_addr = get_calc_addr_op(inst);
+
+ return inst_base;
+}
+
static ARM_INST_PTR INTERPRETER_TRANSLATE(rsb)(unsigned int inst, int index)
{
arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(rsb_inst));
@@ -2570,7 +2585,23 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(smulw)(unsigned int inst, int index)
inst_base->load_r15 = 1;
return inst_base;
}
-static ARM_INST_PTR INTERPRETER_TRANSLATE(srs)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SRS"); }
+
+static ARM_INST_PTR INTERPRETER_TRANSLATE(srs)(unsigned int inst, int index)
+{
+ arm_inst* const inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(ldst_inst));
+ ldst_inst* const inst_cream = (ldst_inst*)inst_base->component;
+
+ inst_base->cond = AL;
+ inst_base->idx = index;
+ inst_base->br = NON_BRANCH;
+ inst_base->load_r15 = 0;
+
+ inst_cream->inst = inst;
+ inst_cream->get_addr = get_calc_addr_op(inst);
+
+ return inst_base;
+}
+
static ARM_INST_PTR INTERPRETER_TRANSLATE(ssat)(unsigned int inst, int index)
{
arm_inst* const inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(ssat_inst));
@@ -5293,6 +5324,20 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
}
RFE_INST:
+ {
+ // RFE is unconditional
+ ldst_inst* const inst_cream = (ldst_inst*)inst_base->component;
+
+ u32 address = 0;
+ inst_cream->get_addr(cpu, inst_cream->inst, address, 1);
+
+ cpu->Cpsr = ReadMemory32(cpu, address);
+ cpu->Reg[15] = ReadMemory32(cpu, address + 4);
+
+ INC_PC(sizeof(ldst_inst));
+ goto DISPATCH;
+ }
+
RSB_INST:
{
if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) {
@@ -5934,6 +5979,21 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
}
SRS_INST:
+ {
+ // SRS is unconditional
+ ldst_inst* const inst_cream = (ldst_inst*)inst_base->component;
+
+ u32 address = 0;
+ inst_cream->get_addr(cpu, inst_cream->inst, address, 1);
+
+ WriteMemory32(cpu, address + 0, cpu->Reg[14]);
+ WriteMemory32(cpu, address + 4, cpu->Spsr_copy);
+
+ cpu->Reg[15] += GET_INST_SIZE(cpu);
+ INC_PC(sizeof(ldst_inst));
+ FETCH_INST;
+ GOTO_NEXT_INST;
+ }
SSAT_INST:
{
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 15:32:24 +0100