From 4a646ace1f2e026a309be084871c270e2a91d731 Mon Sep 17 00:00:00 2001 From: Lioncash Date: Wed, 17 Dec 2014 13:11:01 -0500 Subject: dyncom: Implement UMAAL --- src/core/arm/dyncom/arm_dyncom_interpreter.cpp | 48 +++++++++++++++++++++++++- 1 file changed, 47 insertions(+), 1 deletion(-) (limited to 'src/core/arm/dyncom/arm_dyncom_interpreter.cpp') diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp index 68012bff..84b4a38f 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; -- cgit v1.2.3