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dyncom: Implement UXTB16/UXTAB16
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@ -3343,10 +3343,28 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(usat16)(unsigned int inst, int index) { UN
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ARM_INST_PTR INTERPRETER_TRANSLATE(usub16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("USUB16"); }
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ARM_INST_PTR INTERPRETER_TRANSLATE(usub8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("USUB8"); }
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ARM_INST_PTR INTERPRETER_TRANSLATE(usubaddx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("USUBADDX"); }
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ARM_INST_PTR INTERPRETER_TRANSLATE(uxtab16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UXTAB16"); }
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ARM_INST_PTR INTERPRETER_TRANSLATE(uxtb16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UXTB16"); }
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ARM_INST_PTR INTERPRETER_TRANSLATE(uxtab16)(unsigned int inst, int index)
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{
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arm_inst* const inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(uxtab_inst));
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uxtab_inst* const inst_cream = (uxtab_inst*)inst_base->component;
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inst_base->cond = BITS(inst, 28, 31);
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inst_base->idx = index;
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inst_base->br = NON_BRANCH;
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inst_base->load_r15 = 0;
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inst_cream->Rm = BITS(inst, 0, 3);
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inst_cream->Rn = BITS(inst, 16, 19);
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inst_cream->Rd = BITS(inst, 12, 15);
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inst_cream->rotate = BITS(inst, 10, 11);
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return inst_base;
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}
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ARM_INST_PTR INTERPRETER_TRANSLATE(uxtb16)(unsigned int inst, int index)
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{
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return INTERPRETER_TRANSLATE(uxtab16)(inst, index);
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}
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/* Floating point VFPv3 structures and instructions */
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@ -7116,8 +7134,43 @@ unsigned InterpreterMainLoop(ARMul_State* state)
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USUB16_INST:
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USUB8_INST:
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USUBADDX_INST:
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UXTAB16_INST:
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UXTB16_INST:
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{
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INC_ICOUNTER;
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if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) {
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uxtab_inst* const inst_cream = (uxtab_inst*)inst_base->component;
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const u8 rn_idx = inst_cream->Rn;
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const u32 rm_val = RM;
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const u32 rotation = inst_cream->rotate * 8;
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const u32 rotated_rm = ((rm_val << (32 - rotation)) | (rm_val >> rotation));
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// UXTB16, otherwise UXTAB16
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if (rn_idx == 15) {
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RD = rotated_rm & 0x00FF00FF;
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}
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else {
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const u32 rn_val = RN;
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const u8 lo_rotated = (rotated_rm & 0xFF);
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const u16 lo_result = (rn_val & 0xFFFF) + (u16)lo_rotated;
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const u8 hi_rotated = (rotated_rm >> 16) & 0xFF;
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const u16 hi_result = (rn_val >> 16) + (u16)hi_rotated;
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RD = ((hi_result << 16) | (lo_result & 0xFFFF));
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}
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}
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cpu->Reg[15] += GET_INST_SIZE(cpu);
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INC_PC(sizeof(uxtab_inst));
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FETCH_INST;
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GOTO_NEXT_INST;
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}
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#define VFP_INTERPRETER_IMPL
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#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
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#undef VFP_INTERPRETER_IMPL
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