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authorLioncash <mathew1800@gmail.com>2015-01-07 06:53:56 +0100
committerLioncash <mathew1800@gmail.com>2015-01-07 06:53:56 +0100
commit511e13f3e3d02da2ae8cccf7deb176b4c9c9f76b (patch)
tree7b9f9eef6ae9c7dbf0094ae10efe67594526a214 /src/core/arm/dyncom
parentMerge pull request #402 from chrisvj/master (diff)
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Diffstat (limited to 'src/core/arm/dyncom')
-rw-r--r--src/core/arm/dyncom/arm_dyncom_interpreter.cpp57
1 files changed, 56 insertions, 1 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
index 9b291862c..64264fac8 100644
--- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
@@ -947,6 +947,15 @@ typedef struct _smla_inst {
unsigned int Rn;
} smla_inst;
+typedef struct smlalxy_inst {
+ unsigned int x;
+ unsigned int y;
+ unsigned int RdLo;
+ unsigned int RdHi;
+ unsigned int Rm;
+ unsigned int Rn;
+} smlalxy_inst;
+
typedef struct ssat_inst {
unsigned int Rn;
unsigned int Rd;
@@ -2403,7 +2412,25 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(smlal)(unsigned int inst, int index)
return inst_base;
}
-ARM_INST_PTR INTERPRETER_TRANSLATE(smlalxy)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SMLALXY"); }
+ARM_INST_PTR INTERPRETER_TRANSLATE(smlalxy)(unsigned int inst, int index)
+{
+ arm_inst* const inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(smlalxy_inst));
+ smlalxy_inst* const inst_cream = (smlalxy_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->x = BIT(inst, 5);
+ inst_cream->y = BIT(inst, 6);
+ inst_cream->RdLo = BITS(inst, 12, 15);
+ inst_cream->RdHi = BITS(inst, 16, 19);
+ inst_cream->Rn = BITS(inst, 0, 4);
+ inst_cream->Rm = BITS(inst, 8, 11);
+
+ return inst_base;
+}
ARM_INST_PTR INTERPRETER_TRANSLATE(smlaw)(unsigned int inst, int index)
{
@@ -5686,6 +5713,34 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
}
SMLALXY_INST:
+ {
+ if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) {
+ smlalxy_inst* const inst_cream = (smlalxy_inst*)inst_base->component;
+
+ u64 operand1 = RN;
+ u64 operand2 = RM;
+
+ if (inst_cream->x != 0)
+ operand1 >>= 16;
+ if (inst_cream->y != 0)
+ operand2 >>= 16;
+ operand1 &= 0xFFFF;
+ if (operand1 & 0x8000)
+ operand1 -= 65536;
+ operand2 &= 0xFFFF;
+ if (operand2 & 0x8000)
+ operand2 -= 65536;
+
+ u64 dest = ((u64)RDHI << 32 | RDLO) + (operand1 * operand2);
+ RDLO = (dest & 0xFFFFFFFF);
+ RDHI = ((dest >> 32) & 0xFFFFFFFF);
+ }
+
+ cpu->Reg[15] += GET_INST_SIZE(cpu);
+ INC_PC(sizeof(smlalxy_inst));
+ FETCH_INST;
+ GOTO_NEXT_INST;
+ }
SMLAW_INST:
{