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authorLioncash <mathew1800@gmail.com>2014-12-22 07:09:42 +0100
committerLioncash <mathew1800@gmail.com>2014-12-22 07:09:42 +0100
commit97f3e884d2543b293dba548791151b39469983ab (patch)
treeff2248a3cfc0c1ebfbfc2fa2424be1ab95b7f391 /src/core/arm
parentMerge pull request #322 from chinhodado/master (diff)
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Diffstat (limited to 'src/core/arm')
-rw-r--r--src/core/arm/dyncom/arm_dyncom_interpreter.cpp94
1 files changed, 87 insertions, 7 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
index ae407585e..460001b1a 100644
--- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
@@ -2390,15 +2390,41 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(pld)(unsigned int inst, int index)
return inst_base;
}
ARM_INST_PTR INTERPRETER_TRANSLATE(qadd)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QADD"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(qadd16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QADD16"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(qadd8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QADD8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(qaddsubx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QADDSUBX"); }
+ARM_INST_PTR INTERPRETER_TRANSLATE(qadd16)(unsigned int inst, int index)
+{
+ arm_inst* const inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(generic_arm_inst));
+ generic_arm_inst* const 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->load_r15 = 0;
+
+ inst_cream->Rm = BITS(inst, 0, 3);
+ inst_cream->Rn = BITS(inst, 16, 19);
+ inst_cream->Rd = BITS(inst, 12, 15);
+ inst_cream->op1 = BITS(inst, 20, 21);
+ inst_cream->op2 = BITS(inst, 5, 7);
+
+ return inst_base;
+}
+ARM_INST_PTR INTERPRETER_TRANSLATE(qaddsubx)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(qadd16)(inst, index);
+}
ARM_INST_PTR INTERPRETER_TRANSLATE(qdadd)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QDADD"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(qdsub)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QDSUB"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(qsub)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QSUB"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(qsub16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QSUB16"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(qsub8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QSUB8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(qsubaddx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QSUBADDX"); }
+ARM_INST_PTR INTERPRETER_TRANSLATE(qsub16)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(qadd16)(inst, index);
+}
+ARM_INST_PTR INTERPRETER_TRANSLATE(qsubaddx)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(qadd16)(inst, index);
+}
ARM_INST_PTR INTERPRETER_TRANSLATE(rev)(unsigned int inst, int index)
{
arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(rev_inst));
@@ -5561,15 +5587,69 @@ unsigned InterpreterMainLoop(ARMul_State* state)
GOTO_NEXT_INST;
}
QADD_INST:
- QADD16_INST:
QADD8_INST:
+
+ QADD16_INST:
QADDSUBX_INST:
+ QSUB16_INST:
+ QSUBADDX_INST:
+ {
+ INC_ICOUNTER;
+ if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) {
+ generic_arm_inst* const inst_cream = (generic_arm_inst*)inst_base->component;
+ const s16 rm_lo = (RM & 0xFFFF);
+ const s16 rm_hi = ((RM >> 16) & 0xFFFF);
+ const s16 rn_lo = (RN & 0xFFFF);
+ const s16 rn_hi = ((RN >> 16) & 0xFFFF);
+ const u8 op2 = inst_cream->op2;
+
+ s32 lo_result = 0;
+ s32 hi_result = 0;
+
+ // QADD16
+ if (op2 == 0x00) {
+ lo_result = (rn_lo + rm_lo);
+ hi_result = (rn_hi + rm_hi);
+ }
+ // QASX
+ else if (op2 == 0x01) {
+ lo_result = (rn_lo - rm_hi);
+ hi_result = (rn_hi + rm_lo);
+ }
+ // QSAX
+ else if (op2 == 0x02) {
+ lo_result = (rn_lo + rm_hi);
+ hi_result = (rn_hi - rm_lo);
+ }
+ // QSUB16
+ else if (op2 == 0x03) {
+ lo_result = (rn_lo - rm_lo);
+ hi_result = (rn_hi - rm_hi);
+ }
+
+ if (lo_result > 0x7FFF)
+ lo_result = 0x7FFF;
+ else if (lo_result < -0x8000)
+ lo_result = -0x8000;
+
+ if (hi_result > 0x7FFF)
+ hi_result = 0x7FFF;
+ else if (hi_result < -0x8000)
+ hi_result = -0x8000;
+
+ RD = (lo_result & 0xFFFF) | ((hi_result & 0xFFFF) << 16);
+ }
+
+ cpu->Reg[15] += GET_INST_SIZE(cpu);
+ INC_PC(sizeof(generic_arm_inst));
+ FETCH_INST;
+ GOTO_NEXT_INST;
+ }
+
QDADD_INST:
QDSUB_INST:
QSUB_INST:
- QSUB16_INST:
QSUB8_INST:
- QSUBADDX_INST:
REV_INST:
{
INC_ICOUNTER;