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-rw-r--r--src/core/arm/dyncom/arm_dyncom_interpreter.cpp48
1 files changed, 47 insertions, 1 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
index 68012bffd..84b4a38f0 100644
--- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
@@ -1266,6 +1266,13 @@ typedef struct _smla_inst {
unsigned int Rn;
} smla_inst;
+typedef struct umaal_inst {
+ unsigned int Rn;
+ unsigned int Rm;
+ unsigned int RdHi;
+ unsigned int RdLo;
+} umaal_inst;
+
typedef struct _umlal_inst {
unsigned int S;
unsigned int Rm;
@@ -3010,7 +3017,26 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(uhaddsubx)(unsigned int inst, int index) { UN
ARM_INST_PTR INTERPRETER_TRANSLATE(uhsub16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UHSUB16"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(uhsub8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UHSUB8"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(uhsubaddx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UHSUBADDX"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(umaal)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UMAAL"); }
+ARM_INST_PTR INTERPRETER_TRANSLATE(umaal)(unsigned int inst, int index)
+{
+ arm_inst* const inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(umaal_inst));
+ umaal_inst* const inst_cream = (umaal_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, 8, 11);
+ inst_cream->Rn = BITS(inst, 0, 3);
+ inst_cream->RdLo = BITS(inst, 12, 15);
+ inst_cream->RdHi = BITS(inst, 16, 19);
+
+ if (CHECK_RM || CHECK_RN)
+ inst_base->load_r15 = 1;
+
+ return inst_base;
+}
ARM_INST_PTR INTERPRETER_TRANSLATE(umlal)(unsigned int inst, int index)
{
arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(umlal_inst));
@@ -6374,6 +6400,26 @@ unsigned InterpreterMainLoop(ARMul_State* state)
UHSUB8_INST:
UHSUBADDX_INST:
UMAAL_INST:
+ {
+ INC_ICOUNTER;
+ if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) {
+ umaal_inst* const inst_cream = (umaal_inst*)inst_base->component;
+
+ const u32 rm = RM;
+ const u32 rn = RN;
+ const u32 rd_lo = RDLO;
+ const u32 rd_hi = RDHI;
+
+ const u64 result = (rm * rn) + rd_lo + rd_hi;
+
+ RDLO = (result & 0xFFFFFFFF);
+ RDHI = ((result >> 32) & 0xFFFFFFFF);
+ }
+ cpu->Reg[15] += GET_INST_SIZE(cpu);
+ INC_PC(sizeof(umaal_inst));
+ FETCH_INST;
+ GOTO_NEXT_INST;
+ }
UMLAL_INST:
{
INC_ICOUNTER;