// license:BSD-3-Clause // copyright-holders:David Haywood /*********************************\ ARCompact disassembler \*********************************/ #include "emu.h" #include "arcompactdasm.h" int arcompact_disassembler::handle00_dasm(std::ostream &stream, offs_t pc, uint32_t op, const data_buffer &opcodes) { int size = 4; uint8_t subinstr = (op & 0x00010000) >> 16; op &= ~0x00010000; switch (subinstr) { case 0x00:size = handle00_00_dasm(stream, pc, op, opcodes); break; // Branch Conditionally case 0x01:size = handle00_01_dasm(stream, pc, op, opcodes); break; // Branch Unconditionally Far } return size; } int arcompact_disassembler::handle01_dasm(std::ostream &stream, offs_t pc, uint32_t op, const data_buffer &opcodes) { int size = 4; uint8_t subinstr = (op & 0x00010000) >> 16; op &= ~0x00010000; switch (subinstr) { case 0x00:size = handle01_00_dasm(stream, pc, op, opcodes); break; // Branh & Link case 0x01:size = handle01_01_dasm(stream, pc, op, opcodes); break; // Branch on Compare } return size; } int arcompact_disassembler::handle01_00_dasm(std::ostream &stream, offs_t pc, uint32_t op, const data_buffer &opcodes) { int size = 4; uint8_t subinstr2 = (op & 0x00020000) >> 17; op &= ~0x00020000; switch (subinstr2) { case 0x00:size = handle01_00_00dasm(stream, pc, op, opcodes); break; // Branch and Link Conditionally case 0x01:size = handle01_00_01dasm(stream, pc, op, opcodes); break; // Branch and Link Unconditional Far } return size; } int arcompact_disassembler::handle01_01_dasm(std::ostream &stream, offs_t pc, uint32_t op, const data_buffer &opcodes) { int size = 4; uint8_t subinstr2 = (op & 0x00000010) >> 4; op &= ~0x00000010; switch (subinstr2) { case 0x00:size = handle01_01_00_dasm(stream, pc, op, opcodes); break; // Branch on Compare Register-Register case 0x01:size = handle01_01_01_dasm(stream, pc, op, opcodes); break; // Branch on Compare/Bit Test Register-Immediate } return size; } int arcompact_disassembler::handle01_01_00_dasm(std::ostream &stream, offs_t pc, uint32_t op, const data_buffer &opcodes) { int size = 4; uint8_t subinstr3 = (op & 0x0000000f) >> 0; op &= ~0x0000000f; switch (subinstr3) { case 0x00:size = handle01_01_00_00_dasm(stream, pc, op, opcodes); break; // BREQ (reg-reg) case 0x01:size = handle01_01_00_01_dasm(stream, pc, op, opcodes); break; // BRNE (reg-reg) case 0x02:size = handle01_01_00_02_dasm(stream, pc, op, opcodes); break; // BRLT (reg-reg) case 0x03:size = handle01_01_00_03_dasm(stream, pc, op, opcodes); break; // BRGE (reg-reg) case 0x04:size = handle01_01_00_04_dasm(stream, pc, op, opcodes); break; // BRLO (reg-reg) case 0x05:size = handle01_01_00_05_dasm(stream, pc, op, opcodes); break; // BRHS (reg-reg) case 0x06:size = handle01_01_00_06_dasm(stream, pc, op, opcodes); break; // reserved case 0x07:size = handle01_01_00_07_dasm(stream, pc, op, opcodes); break; // reserved case 0x08:size = handle01_01_00_08_dasm(stream, pc, op, opcodes); break; // reserved case 0x09:size = handle01_01_00_09_dasm(stream, pc, op, opcodes); break; // reserved case 0x0a:size = handle01_01_00_0a_dasm(stream, pc, op, opcodes); break; // reserved case 0x0b:size = handle01_01_00_0b_dasm(stream, pc, op, opcodes); break; // reserved case 0x0c:size = handle01_01_00_0c_dasm(stream, pc, op, opcodes); break; // reserved case 0x0d:size = handle01_01_00_0d_dasm(stream, pc, op, opcodes); break; // reserved case 0x0e:size = handle01_01_00_0e_dasm(stream, pc, op, opcodes); break; // BBIT0 (reg-reg) case 0x0f:size = handle01_01_00_0f_dasm(stream, pc, op, opcodes); break; // BBIT1 (reg-reg) } return size; } int arcompact_disassembler::handle01_01_01_dasm(std::ostream &stream, offs_t pc, uint32_t op, const data_buffer &opcodes) // Branch on Compare/Bit Test Register-Immediate { int size = 4; uint8_t subinstr3 = (op & 0x0000000f) >> 0; op &= ~0x0000000f; switch (subinstr3) { case 0x00:size = handle01_01_01_00_dasm(stream, pc, op, opcodes); break; // BREQ (reg-imm) case 0x01:size = handle01_01_01_01_dasm(stream, pc, op, opcodes); break; // BRNE (reg-imm) case 0x02:size = handle01_01_01_02_dasm(stream, pc, op, opcodes); break; // BRLT (reg-imm) case 0x03:size = handle01_01_01_03_dasm(stream, pc, op, opcodes); break; // BRGE (reg-imm) case 0x04:size = handle01_01_01_04_dasm(stream, pc, op, opcodes); break; // BRLO (reg-imm) case 0x05:size = handle01_01_01_05_dasm(stream, pc, op, opcodes); break; // BRHS (reg-imm) case 0x06:size = handle01_01_01_06_dasm(stream, pc, op, opcodes); break; // reserved case 0x07:size = handle01_01_01_07_dasm(stream, pc, op, opcodes); break; // reserved case 0x08:size = handle01_01_01_08_dasm(stream, pc, op, opcodes); break; // reserved case 0x09:size = handle01_01_01_09_dasm(stream, pc, op, opcodes); break; // reserved case 0x0a:size = handle01_01_01_0a_dasm(stream, pc, op, opcodes); break; // reserved case 0x0b:size = handle01_01_01_0b_dasm(stream, pc, op, opcodes); break; // reserved case 0x0c:size = handle01_01_01_0c_dasm(stream, pc, op, opcodes); break; // reserved case 0x0d:size = handle01_01_01_0d_dasm(stream, pc, op, opcodes); break; // reserved case 0x0e:size = handle01_01_01_0e_dasm(stream, pc, op, opcodes); break; // BBIT0 (reg-imm) case 0x0f:size = handle01_01_01_0f_dasm(stream, pc, op, opcodes); break; // BBIT1 (reg-imm) } return size; } int arcompact_disassembler::handle04_dasm(std::ostream &stream, offs_t pc, uint32_t op, const data_buffer &opcodes) { int size = 4; // General Operations // bitpos // 11111 111 11 111111 0 000 000000 0 00000 // fedcb a98 76 543210 f edc ba9876 5 43210 // // 00100 bbb 00 iiiiii F BBB CCCCCC A AAAAA General Operations *UN*Conditional Register to Register // 00100 bbb 01 iiiiii F BBB UUUUUU A AAAAA General Operations *UN*Conditional Register (Unsigned 6-bit IMM) // 00100 bbb 10 iiiiii F BBB ssssss S SSSSS General Operations *UN*Conditional Register (Signed 12-bit IMM) // 00100 bbb 11 iiiiii F BBB CCCCCC 0 QQQQQ General Operations Conditional Register // 00100 bbb 11 iiiiii F BBB UUUUUU 1 QQQQQ General Operations Conditional Register (Unsigned 6-bit IMM) uint8_t subinstr = (op & 0x003f0000) >> 16; op &= ~0x003f0000; switch (subinstr) { case 0x00:size = handle04_00_dasm(stream, pc, op, opcodes); break; // ADD case 0x01:size = handle04_01_dasm(stream, pc, op, opcodes); break; // ADC case 0x02:size = handle04_02_dasm(stream, pc, op, opcodes); break; // SUB case 0x03:size = handle04_03_dasm(stream, pc, op, opcodes); break; // SBC case 0x04:size = handle04_04_dasm(stream, pc, op, opcodes); break; // AND case 0x05:size = handle04_05_dasm(stream, pc, op, opcodes); break; // OR case 0x06:size = handle04_06_dasm(stream, pc, op, opcodes); break; // BIC case 0x07:size = handle04_07_dasm(stream, pc, op, opcodes); break; // XOR case 0x08:size = handle04_08_dasm(stream, pc, op, opcodes); break; // MAX case 0x09:size = handle04_09_dasm(stream, pc, op, opcodes); break; // MIN case 0x0a:size = handle04_0a_dasm(stream, pc, op, opcodes); break; // MOV case 0x0b:size = handle04_0b_dasm(stream, pc, op, opcodes); break; // TST case 0x0c:size = handle04_0c_dasm(stream, pc, op, opcodes); break; // CMP case 0x0d:size = handle04_0d_dasm(stream, pc, op, opcodes); break; // RCMP case 0x0e:size = handle04_0e_dasm(stream, pc, op, opcodes); break; // RSUB case 0x0f:size = handle04_0f_dasm(stream, pc, op, opcodes); break; // BSET case 0x10:size = handle04_10_dasm(stream, pc, op, opcodes); break; // BCLR case 0x11:size = handle04_11_dasm(stream, pc, op, opcodes); break; // BTST case 0x12:size = handle04_12_dasm(stream, pc, op, opcodes); break; // BXOR case 0x13:size = handle04_13_dasm(stream, pc, op, opcodes); break; // BMSK case 0x14:size = handle04_14_dasm(stream, pc, op, opcodes); break; // ADD1 case 0x15:size = handle04_15_dasm(stream, pc, op, opcodes); break; // ADD2 case 0x16:size = handle04_16_dasm(stream, pc, op, opcodes); break; // ADD3 case 0x17:size = handle04_17_dasm(stream, pc, op, opcodes); break; // SUB1 case 0x18:size = handle04_18_dasm(stream, pc, op, opcodes); break; // SUB2 case 0x19:size = handle04_19_dasm(stream, pc, op, opcodes); break; // SUB3 case 0x1a:size = handle04_1a_dasm(stream, pc, op, opcodes); break; // MPY * case 0x1b:size = handle04_1b_dasm(stream, pc, op, opcodes); break; // MPYH * case 0x1c:size = handle04_1c_dasm(stream, pc, op, opcodes); break; // MPYHU * case 0x1d:size = handle04_1d_dasm(stream, pc, op, opcodes); break; // MPYU * case 0x1e:size = handle04_1e_dasm(stream, pc, op, opcodes); break; // illegal case 0x1f:size = handle04_1f_dasm(stream, pc, op, opcodes); break; // illegal case 0x20:size = handle04_20_dasm(stream, pc, op, opcodes); break; // Jcc case 0x21:size = handle04_21_dasm(stream, pc, op, opcodes); break; // Jcc.D case 0x22:size = handle04_22_dasm(stream, pc, op, opcodes); break; // JLcc case 0x23:size = handle04_23_dasm(stream, pc, op, opcodes); break; // JLcc.D case 0x24:size = handle04_24_dasm(stream, pc, op, opcodes); break; // illegal case 0x25:size = handle04_25_dasm(stream, pc, op, opcodes); break; // illegal case 0x26:size = handle04_26_dasm(stream, pc, op, opcodes); break; // illegal case 0x27:size = handle04_27_dasm(stream, pc, op, opcodes); break; // illegal case 0x28:size = handle04_28_dasm(stream, pc, op, opcodes); break; // LPcc case 0x29:size = handle04_29_dasm(stream, pc, op, opcodes); break; // FLAG case 0x2a:size = handle04_2a_dasm(stream, pc, op, opcodes); break; // LR case 0x2b:size = handle04_2b_dasm(stream, pc, op, opcodes); break; // SR case 0x2c:size = handle04_2c_dasm(stream, pc, op, opcodes); break; // illegal case 0x2d:size = handle04_2d_dasm(stream, pc, op, opcodes); break; // illegal case 0x2e:size = handle04_2e_dasm(stream, pc, op, opcodes); break; // illegal case 0x2f:size = handle04_2f_dasm(stream, pc, op, opcodes); break; // Sub Opcode case 0x30:size = handle04_30_dasm(stream, pc, op, opcodes); break; // LD r-r case 0x31:size = handle04_31_dasm(stream, pc, op, opcodes); break; // LD r-r case 0x32:size = handle04_32_dasm(stream, pc, op, opcodes); break; // LD r-r case 0x33:size = handle04_33_dasm(stream, pc, op, opcodes); break; // LD r-r case 0x34:size = handle04_34_dasm(stream, pc, op, opcodes); break; // LD r-r case 0x35:size = handle04_35_dasm(stream, pc, op, opcodes); break; // LD r-r case 0x36:size = handle04_36_dasm(stream, pc, op, opcodes); break; // LD r-r case 0x37:size = handle04_37_dasm(stream, pc, op, opcodes); break; // LD r-r case 0x38:size = handle04_38_dasm(stream, pc, op, opcodes); break; // illegal case 0x39:size = handle04_39_dasm(stream, pc, op, opcodes); break; // illegal case 0x3a:size = handle04_3a_dasm(stream, pc, op, opcodes); break; // illegal case 0x3b:size = handle04_3b_dasm(stream, pc, op, opcodes); break; // illegal case 0x3c:size = handle04_3c_dasm(stream, pc, op, opcodes); break; // illegal case 0x3d:size = handle04_3d_dasm(stream, pc, op, opcodes); break; // illegal case 0x3e:size = handle04_3e_dasm(stream, pc, op, opcodes); break; // illegal case 0x3f:size = handle04_3f_dasm(stream, pc, op, opcodes); break; // illegal } return size; } int arcompact_disassembler::handle04_2f_dasm(std::ostream &stream, offs_t pc, uint32_t op, const data_buffer &opcodes) { int size = 4; uint8_t subinstr2 = (op & 0x0000003f) >> 0; op &= ~0x0000003f; switch (subinstr2) { case 0x00:size = handle04_2f_00_dasm(stream, pc, op, opcodes); break; // ASL case 0x01:size = handle04_2f_01_dasm(stream, pc, op, opcodes); break; // ASR case 0x02:size = handle04_2f_02_dasm(stream, pc, op, opcodes); break; // LSR case 0x03:size = handle04_2f_03_dasm(stream, pc, op, opcodes); break; // ROR case 0x04:size = handle04_2f_04_dasm(stream, pc, op, opcodes); break; // RCC case 0x05:size = handle04_2f_05_dasm(stream, pc, op, opcodes); break; // SEXB case 0x06:size = handle04_2f_06_dasm(stream, pc, op, opcodes); break; // SEXW case 0x07:size = handle04_2f_07_dasm(stream, pc, op, opcodes); break; // EXTB case 0x08:size = handle04_2f_08_dasm(stream, pc, op, opcodes); break; // EXTW case 0x09:size = handle04_2f_09_dasm(stream, pc, op, opcodes); break; // ABS case 0x0a:size = handle04_2f_0a_dasm(stream, pc, op, opcodes); break; // NOT case 0x0b:size = handle04_2f_0b_dasm(stream, pc, op, opcodes); break; // RLC case 0x0c:size = handle04_2f_0c_dasm(stream, pc, op, opcodes); break; // EX case 0x0d:size = handle04_2f_0d_dasm(stream, pc, op, opcodes); break; // illegal case 0x0e:size = handle04_2f_0e_dasm(stream, pc, op, opcodes); break; // illegal case 0x0f:size = handle04_2f_0f_dasm(stream, pc, op, opcodes); break; // illegal case 0x10:size = handle04_2f_10_dasm(stream, pc, op, opcodes); break; // illegal case 0x11:size = handle04_2f_11_dasm(stream, pc, op, opcodes); break; // illegal case 0x12:size = handle04_2f_12_dasm(stream, pc, op, opcodes); break; // illegal case 0x13:size = handle04_2f_13_dasm(stream, pc, op, opcodes); break; // illegal case 0x14:size = handle04_2f_14_dasm(stream, pc, op, opcodes); break; // illegal case 0x15:size = handle04_2f_15_dasm(stream, pc, op, opcodes); break; // illegal case 0x16:size = handle04_2f_16_dasm(stream, pc, op, opcodes); break; // illegal case 0x17:size = handle04_2f_17_dasm(stream, pc, op, opcodes); break; // illegal case 0x18:size = handle04_2f_18_dasm(stream, pc, op, opcodes); break; // illegal case 0x19:size = handle04_2f_19_dasm(stream, pc, op, opcodes); break; // illegal case 0x1a:size = handle04_2f_1a_dasm(stream, pc, op, opcodes); break; // illegal case 0x1b:size = handle04_2f_1b_dasm(stream, pc, op, opcodes); break; // illegal case 0x1c:size = handle04_2f_1c_dasm(stream, pc, op, opcodes); break; // illegal case 0x1d:size = handle04_2f_1d_dasm(stream, pc, op, opcodes); break; // illegal case 0x1e:size = handle04_2f_1e_dasm(stream, pc, op, opcodes); break; // illegal case 0x1f:size = handle04_2f_1f_dasm(stream, pc, op, opcodes); break; // illegal case 0x20:size = handle04_2f_20_dasm(stream, pc, op, opcodes); break; // illegal case 0x21:size = handle04_2f_21_dasm(stream, pc, op, opcodes); break; // illegal case 0x22:size = handle04_2f_22_dasm(stream, pc, op, opcodes); break; // illegal case 0x23:size = handle04_2f_23_dasm(stream, pc, op, opcodes); break; // illegal case 0x24:size = handle04_2f_24_dasm(stream, pc, op, opcodes); break; // illegal case 0x25:size = handle04_2f_25_dasm(stream, pc, op, opcodes); break; // illegal case 0x26:size = handle04_2f_26_dasm(stream, pc, op, opcodes); break; // illegal case 0x27:size = handle04_2f_27_dasm(stream, pc, op, opcodes); break; // illegal case 0x28:size = handle04_2f_28_dasm(stream, pc, op, opcodes); break; // illegal case 0x29:size = handle04_2f_29_dasm(stream, pc, op, opcodes); break; // illegal case 0x2a:size = handle04_2f_2a_dasm(stream, pc, op, opcodes); break; // illegal case 0x2b:size = handle04_2f_2b_dasm(stream, pc, op, opcodes); break; // illegal case 0x2c:size = handle04_2f_2c_dasm(stream, pc, op, opcodes); break; // illegal case 0x2d:size = handle04_2f_2d_dasm(stream, pc, op, opcodes); break; // illegal case 0x2e:size = handle04_2f_2e_dasm(stream, pc, op, opcodes); break; // illegal case 0x2f:size = handle04_2f_2f_dasm(stream, pc, op, opcodes); break; // illegal case 0x30:size = handle04_2f_30_dasm(stream, pc, op, opcodes); break; // illegal case 0x31:size = handle04_2f_31_dasm(stream, pc, op, opcodes); break; // illegal case 0x32:size = handle04_2f_32_dasm(stream, pc, op, opcodes); break; // illegal case 0x33:size = handle04_2f_33_dasm(stream, pc, op, opcodes); break; // illegal case 0x34:size = handle04_2f_34_dasm(stream, pc, op, opcodes); break; // illegal case 0x35:size = handle04_2f_35_dasm(stream, pc, op, opcodes); break; // illegal case 0x36:size = handle04_2f_36_dasm(stream, pc, op, opcodes); break; // illegal case 0x37:size = handle04_2f_37_dasm(stream, pc, op, opcodes); break; // illegal case 0x38:size = handle04_2f_38_dasm(stream, pc, op, opcodes); break; // illegal case 0x39:size = handle04_2f_39_dasm(stream, pc, op, opcodes); break; // illegal case 0x3a:size = handle04_2f_3a_dasm(stream, pc, op, opcodes); break; // illegal case 0x3b:size = handle04_2f_3b_dasm(stream, pc, op, opcodes); break; // illegal case 0x3c:size = handle04_2f_3c_dasm(stream, pc, op, opcodes); break; // illegal case 0x3d:size = handle04_2f_3d_dasm(stream, pc, op, opcodes); break; // illegal case 0x3e:size = handle04_2f_3e_dasm(stream, pc, op, opcodes); break; // illegal case 0x3f:size = handle04_2f_3f_dasm(stream, pc, op, opcodes); break; // ZOPs (Zero Operand Opcodes) } return size; } int arcompact_disassembler::handle05_2f_dasm(std::ostream &stream, offs_t pc, uint32_t op, const data_buffer &opcodes) { int size = 4; uint8_t subinstr2 = (op & 0x0000003f) >> 0; op &= ~0x0000003f; switch (subinstr2) { case 0x00:size = handle05_2f_00_dasm(stream, pc, op, opcodes); break; // SWAP case 0x01:size = handle05_2f_01_dasm(stream, pc, op, opcodes); break; // NORM case 0x02:size = handle05_2f_02_dasm(stream, pc, op, opcodes); break; // SAT16 case 0x03:size = handle05_2f_03_dasm(stream, pc, op, opcodes); break; // RND16 case 0x04:size = handle05_2f_04_dasm(stream, pc, op, opcodes); break; // ABSSW case 0x05:size = handle05_2f_05_dasm(stream, pc, op, opcodes); break; // ABSS case 0x06:size = handle05_2f_06_dasm(stream, pc, op, opcodes); break; // NEGSW case 0x07:size = handle05_2f_07_dasm(stream, pc, op, opcodes); break; // NEGS case 0x08:size = handle05_2f_08_dasm(stream, pc, op, opcodes); break; // NORMW case 0x09:size = handle05_2f_09_dasm(stream, pc, op, opcodes); break; // illegal case 0x0a:size = handle05_2f_0a_dasm(stream, pc, op, opcodes); break; // illegal case 0x0b:size = handle05_2f_0b_dasm(stream, pc, op, opcodes); break; // illegal case 0x0c:size = handle05_2f_0c_dasm(stream, pc, op, opcodes); break; // illegal case 0x0d:size = handle05_2f_0d_dasm(stream, pc, op, opcodes); break; // illegal case 0x0e:size = handle05_2f_0e_dasm(stream, pc, op, opcodes); break; // illegal case 0x0f:size = handle05_2f_0f_dasm(stream, pc, op, opcodes); break; // illegal case 0x10:size = handle05_2f_10_dasm(stream, pc, op, opcodes); break; // illegal case 0x11:size = handle05_2f_11_dasm(stream, pc, op, opcodes); break; // illegal case 0x12:size = handle05_2f_12_dasm(stream, pc, op, opcodes); break; // illegal case 0x13:size = handle05_2f_13_dasm(stream, pc, op, opcodes); break; // illegal case 0x14:size = handle05_2f_14_dasm(stream, pc, op, opcodes); break; // illegal case 0x15:size = handle05_2f_15_dasm(stream, pc, op, opcodes); break; // illegal case 0x16:size = handle05_2f_16_dasm(stream, pc, op, opcodes); break; // illegal case 0x17:size = handle05_2f_17_dasm(stream, pc, op, opcodes); break; // illegal case 0x18:size = handle05_2f_18_dasm(stream, pc, op, opcodes); break; // illegal case 0x19:size = handle05_2f_19_dasm(stream, pc, op, opcodes); break; // illegal case 0x1a:size = handle05_2f_1a_dasm(stream, pc, op, opcodes); break; // illegal case 0x1b:size = handle05_2f_1b_dasm(stream, pc, op, opcodes); break; // illegal case 0x1c:size = handle05_2f_1c_dasm(stream, pc, op, opcodes); break; // illegal case 0x1d:size = handle05_2f_1d_dasm(stream, pc, op, opcodes); break; // illegal case 0x1e:size = handle05_2f_1e_dasm(stream, pc, op, opcodes); break; // illegal case 0x1f:size = handle05_2f_1f_dasm(stream, pc, op, opcodes); break; // illegal case 0x20:size = handle05_2f_20_dasm(stream, pc, op, opcodes); break; // illegal case 0x21:size = handle05_2f_21_dasm(stream, pc, op, opcodes); break; // illegal case 0x22:size = handle05_2f_22_dasm(stream, pc, op, opcodes); break; // illegal case 0x23:size = handle05_2f_23_dasm(stream, pc, op, opcodes); break; // illegal case 0x24:size = handle05_2f_24_dasm(stream, pc, op, opcodes); break; // illegal case 0x25:size = handle05_2f_25_dasm(stream, pc, op, opcodes); break; // illegal case 0x26:size = handle05_2f_26_dasm(stream, pc, op, opcodes); break; // illegal case 0x27:size = handle05_2f_27_dasm(stream, pc, op, opcodes); break; // illegal case 0x28:size = handle05_2f_28_dasm(stream, pc, op, opcodes); break; // illegal case 0x29:size = handle05_2f_29_dasm(stream, pc, op, opcodes); break; // illegal case 0x2a:size = handle05_2f_2a_dasm(stream, pc, op, opcodes); break; // illegal case 0x2b:size = handle05_2f_2b_dasm(stream, pc, op, opcodes); break; // illegal case 0x2c:size = handle05_2f_2c_dasm(stream, pc, op, opcodes); break; // illegal case 0x2d:size = handle05_2f_2d_dasm(stream, pc, op, opcodes); break; // illegal case 0x2e:size = handle05_2f_2e_dasm(stream, pc, op, opcodes); break; // illegal case 0x2f:size = handle05_2f_2f_dasm(stream, pc, op, opcodes); break; // illegal case 0x30:size = handle05_2f_30_dasm(stream, pc, op, opcodes); break; // illegal case 0x31:size = handle05_2f_31_dasm(stream, pc, op, opcodes); break; // illegal case 0x32:size = handle05_2f_32_dasm(stream, pc, op, opcodes); break; // illegal case 0x33:size = handle05_2f_33_dasm(stream, pc, op, opcodes); break; // illegal case 0x34:size = handle05_2f_34_dasm(stream, pc, op, opcodes); break; // illegal case 0x35:size = handle05_2f_35_dasm(stream, pc, op, opcodes); break; // illegal case 0x36:size = handle05_2f_36_dasm(stream, pc, op, opcodes); break; // illegal case 0x37:size = handle05_2f_37_dasm(stream, pc, op, opcodes); break; // illegal case 0x38:size = handle05_2f_38_dasm(stream, pc, op, opcodes); break; // illegal case 0x39:size = handle05_2f_39_dasm(stream, pc, op, opcodes); break; // illegal case 0x3a:size = handle05_2f_3a_dasm(stream, pc, op, opcodes); break; // illegal case 0x3b:size = handle05_2f_3b_dasm(stream, pc, op, opcodes); break; // illegal case 0x3c:size = handle05_2f_3c_dasm(stream, pc, op, opcodes); break; // illegal case 0x3d:size = handle05_2f_3d_dasm(stream, pc, op, opcodes); break; // illegal case 0x3e:size = handle05_2f_3e_dasm(stream, pc, op, opcodes); break; // illegal case 0x3f:size = handle05_2f_3f_dasm(stream, pc, op, opcodes); break; // ZOPs (Zero Operand Opcodes) } return size; } int arcompact_disassembler::handle04_2f_3f_dasm(std::ostream &stream, offs_t pc, uint32_t op, const data_buffer &opcodes) { int size = 4; uint8_t subinstr3 = (op & 0x07000000) >> 24; subinstr3 |= ((op & 0x00007000) >> 12) << 3; op &= ~0x07007000; switch (subinstr3) { case 0x00:size = handle04_2f_3f_00_dasm(stream, pc, op, opcodes); break; // illegal case 0x01:size = handle04_2f_3f_01_dasm(stream, pc, op, opcodes); break; // SLEEP case 0x02:size = handle04_2f_3f_02_dasm(stream, pc, op, opcodes); break; // SWI / TRAP9 case 0x03:size = handle04_2f_3f_03_dasm(stream, pc, op, opcodes); break; // SYNC case 0x04:size = handle04_2f_3f_04_dasm(stream, pc, op, opcodes); break; // RTIE case 0x05:size = handle04_2f_3f_05_dasm(stream, pc, op, opcodes); break; // BRK case 0x06:size = handle04_2f_3f_06_dasm(stream, pc, op, opcodes); break; // illegal case 0x07:size = handle04_2f_3f_07_dasm(stream, pc, op, opcodes); break; // illegal case 0x08:size = handle04_2f_3f_08_dasm(stream, pc, op, opcodes); break; // illegal case 0x09:size = handle04_2f_3f_09_dasm(stream, pc, op, opcodes); break; // illegal case 0x0a:size = handle04_2f_3f_0a_dasm(stream, pc, op, opcodes); break; // illegal case 0x0b:size = handle04_2f_3f_0b_dasm(stream, pc, op, opcodes); break; // illegal case 0x0c:size = handle04_2f_3f_0c_dasm(stream, pc, op, opcodes); break; // illegal case 0x0d:size = handle04_2f_3f_0d_dasm(stream, pc, op, opcodes); break; // illegal case 0x0e:size = handle04_2f_3f_0e_dasm(stream, pc, op, opcodes); break; // illegal case 0x0f:size = handle04_2f_3f_0f_dasm(stream, pc, op, opcodes); break; // illegal case 0x10:size = handle04_2f_3f_10_dasm(stream, pc, op, opcodes); break; // illegal case 0x11:size = handle04_2f_3f_11_dasm(stream, pc, op, opcodes); break; // illegal case 0x12:size = handle04_2f_3f_12_dasm(stream, pc, op, opcodes); break; // illegal case 0x13:size = handle04_2f_3f_13_dasm(stream, pc, op, opcodes); break; // illegal case 0x14:size = handle04_2f_3f_14_dasm(stream, pc, op, opcodes); break; // illegal case 0x15:size = handle04_2f_3f_15_dasm(stream, pc, op, opcodes); break; // illegal case 0x16:size = handle04_2f_3f_16_dasm(stream, pc, op, opcodes); break; // illegal case 0x17:size = handle04_2f_3f_17_dasm(stream, pc, op, opcodes); break; // illegal case 0x18:size = handle04_2f_3f_18_dasm(stream, pc, op, opcodes); break; // illegal case 0x19:size = handle04_2f_3f_19_dasm(stream, pc, op, opcodes); break; // illegal case 0x1a:size = handle04_2f_3f_1a_dasm(stream, pc, op, opcodes); break; // illegal case 0x1b:size = handle04_2f_3f_1b_dasm(stream, pc, op, opcodes); break; // illegal case 0x1c:size = handle04_2f_3f_1c_dasm(stream, pc, op, opcodes); break; // illegal case 0x1d:size = handle04_2f_3f_1d_dasm(stream, pc, op, opcodes); break; // illegal case 0x1e:size = handle04_2f_3f_1e_dasm(stream, pc, op, opcodes); break; // illegal case 0x1f:size = handle04_2f_3f_1f_dasm(stream, pc, op, opcodes); break; // illegal case 0x20:size = handle04_2f_3f_20_dasm(stream, pc, op, opcodes); break; // illegal case 0x21:size = handle04_2f_3f_21_dasm(stream, pc, op, opcodes); break; // illegal case 0x22:size = handle04_2f_3f_22_dasm(stream, pc, op, opcodes); break; // illegal case 0x23:size = handle04_2f_3f_23_dasm(stream, pc, op, opcodes); break; // illegal case 0x24:size = handle04_2f_3f_24_dasm(stream, pc, op, opcodes); break; // illegal case 0x25:size = handle04_2f_3f_25_dasm(stream, pc, op, opcodes); break; // illegal case 0x26:size = handle04_2f_3f_26_dasm(stream, pc, op, opcodes); break; // illegal case 0x27:size = handle04_2f_3f_27_dasm(stream, pc, op, opcodes); break; // illegal case 0x28:size = handle04_2f_3f_28_dasm(stream, pc, op, opcodes); break; // illegal case 0x29:size = handle04_2f_3f_29_dasm(stream, pc, op, opcodes); break; // illegal case 0x2a:size = handle04_2f_3f_2a_dasm(stream, pc, op, opcodes); break; // illegal case 0x2b:size = handle04_2f_3f_2b_dasm(stream, pc, op, opcodes); break; // illegal case 0x2c:size = handle04_2f_3f_2c_dasm(stream, pc, op, opcodes); break; // illegal case 0x2d:size = handle04_2f_3f_2d_dasm(stream, pc, op, opcodes); break; // illegal case 0x2e:size = handle04_2f_3f_2e_dasm(stream, pc, op, opcodes); break; // illegal case 0x2f:size = handle04_2f_3f_2f_dasm(stream, pc, op, opcodes); break; // illegal case 0x30:size = handle04_2f_3f_30_dasm(stream, pc, op, opcodes); break; // illegal case 0x31:size = handle04_2f_3f_31_dasm(stream, pc, op, opcodes); break; // illegal case 0x32:size = handle04_2f_3f_32_dasm(stream, pc, op, opcodes); break; // illegal case 0x33:size = handle04_2f_3f_33_dasm(stream, pc, op, opcodes); break; // illegal case 0x34:size = handle04_2f_3f_34_dasm(stream, pc, op, opcodes); break; // illegal case 0x35:size = handle04_2f_3f_35_dasm(stream, pc, op, opcodes); break; // illegal case 0x36:size = handle04_2f_3f_36_dasm(stream, pc, op, opcodes); break; // illegal case 0x37:size = handle04_2f_3f_37_dasm(stream, pc, op, opcodes); break; // illegal case 0x38:size = handle04_2f_3f_38_dasm(stream, pc, op, opcodes); break; // illegal case 0x39:size = handle04_2f_3f_39_dasm(stream, pc, op, opcodes); break; // illegal case 0x3a:size = handle04_2f_3f_3a_dasm(stream, pc, op, opcodes); break; // illegal case 0x3b:size = handle04_2f_3f_3b_dasm(stream, pc, op, opcodes); break; // illegal case 0x3c:size = handle04_2f_3f_3c_dasm(stream, pc, op, opcodes); break; // illegal case 0x3d:size = handle04_2f_3f_3d_dasm(stream, pc, op, opcodes); break; // illegal case 0x3e:size = handle04_2f_3f_3e_dasm(stream, pc, op, opcodes); break; // illegal case 0x3f:size = handle04_2f_3f_3f_dasm(stream, pc, op, opcodes); break; // illegal } return size; } int arcompact_disassembler::handle05_2f_3f_dasm(std::ostream &stream, offs_t pc, uint32_t op, const data_buffer &opcodes) // useless ZOP group, no actual opcodes { int size = 4; uint8_t subinstr3 = (op & 0x07000000) >> 24; subinstr3 |= ((op & 0x00007000) >> 12) << 3; op &= ~0x07007000; switch (subinstr3) { case 0x00:size = handle05_2f_3f_00_dasm(stream, pc, op, opcodes); break; // illegal case 0x01:size = handle05_2f_3f_01_dasm(stream, pc, op, opcodes); break; // illegal case 0x02:size = handle05_2f_3f_02_dasm(stream, pc, op, opcodes); break; // illegal case 0x03:size = handle05_2f_3f_03_dasm(stream, pc, op, opcodes); break; // illegal case 0x04:size = handle05_2f_3f_04_dasm(stream, pc, op, opcodes); break; // illegal case 0x05:size = handle05_2f_3f_05_dasm(stream, pc, op, opcodes); break; // illegal case 0x06:size = handle05_2f_3f_06_dasm(stream, pc, op, opcodes); break; // illegal case 0x07:size = handle05_2f_3f_07_dasm(stream, pc, op, opcodes); break; // illegal case 0x08:size = handle05_2f_3f_08_dasm(stream, pc, op, opcodes); break; // illegal case 0x09:size = handle05_2f_3f_09_dasm(stream, pc, op, opcodes); break; // illegal case 0x0a:size = handle05_2f_3f_0a_dasm(stream, pc, op, opcodes); break; // illegal case 0x0b:size = handle05_2f_3f_0b_dasm(stream, pc, op, opcodes); break; // illegal case 0x0c:size = handle05_2f_3f_0c_dasm(stream, pc, op, opcodes); break; // illegal case 0x0d:size = handle05_2f_3f_0d_dasm(stream, pc, op, opcodes); break; // illegal case 0x0e:size = handle05_2f_3f_0e_dasm(stream, pc, op, opcodes); break; // illegal case 0x0f:size = handle05_2f_3f_0f_dasm(stream, pc, op, opcodes); break; // illegal case 0x10:size = handle05_2f_3f_10_dasm(stream, pc, op, opcodes); break; // illegal case 0x11:size = handle05_2f_3f_11_dasm(stream, pc, op, opcodes); break; // illegal case 0x12:size = handle05_2f_3f_12_dasm(stream, pc, op, opcodes); break; // illegal case 0x13:size = handle05_2f_3f_13_dasm(stream, pc, op, opcodes); break; // illegal case 0x14:size = handle05_2f_3f_14_dasm(stream, pc, op, opcodes); break; // illegal case 0x15:size = handle05_2f_3f_15_dasm(stream, pc, op, opcodes); break; // illegal case 0x16:size = handle05_2f_3f_16_dasm(stream, pc, op, opcodes); break; // illegal case 0x17:size = handle05_2f_3f_17_dasm(stream, pc, op, opcodes); break; // illegal case 0x18:size = handle05_2f_3f_18_dasm(stream, pc, op, opcodes); break; // illegal case 0x19:size = handle05_2f_3f_19_dasm(stream, pc, op, opcodes); break; // illegal case 0x1a:size = handle05_2f_3f_1a_dasm(stream, pc, op, opcodes); break; // illegal case 0x1b:size = handle05_2f_3f_1b_dasm(stream, pc, op, opcodes); break; // illegal case 0x1c:size = handle05_2f_3f_1c_dasm(stream, pc, op, opcodes); break; // illegal case 0x1d:size = handle05_2f_3f_1d_dasm(stream, pc, op, opcodes); break; // illegal case 0x1e:size = handle05_2f_3f_1e_dasm(stream, pc, op, opcodes); break; // illegal case 0x1f:size = handle05_2f_3f_1f_dasm(stream, pc, op, opcodes); break; // illegal case 0x20:size = handle05_2f_3f_20_dasm(stream, pc, op, opcodes); break; // illegal case 0x21:size = handle05_2f_3f_21_dasm(stream, pc, op, opcodes); break; // illegal case 0x22:size = handle05_2f_3f_22_dasm(stream, pc, op, opcodes); break; // illegal case 0x23:size = handle05_2f_3f_23_dasm(stream, pc, op, opcodes); break; // illegal case 0x24:size = handle05_2f_3f_24_dasm(stream, pc, op, opcodes); break; // illegal case 0x25:size = handle05_2f_3f_25_dasm(stream, pc, op, opcodes); break; // illegal case 0x26:size = handle05_2f_3f_26_dasm(stream, pc, op, opcodes); break; // illegal case 0x27:size = handle05_2f_3f_27_dasm(stream, pc, op, opcodes); break; // illegal case 0x28:size = handle05_2f_3f_28_dasm(stream, pc, op, opcodes); break; // illegal case 0x29:size = handle05_2f_3f_29_dasm(stream, pc, op, opcodes); break; // illegal case 0x2a:size = handle05_2f_3f_2a_dasm(stream, pc, op, opcodes); break; // illegal case 0x2b:size = handle05_2f_3f_2b_dasm(stream, pc, op, opcodes); break; // illegal case 0x2c:size = handle05_2f_3f_2c_dasm(stream, pc, op, opcodes); break; // illegal case 0x2d:size = handle05_2f_3f_2d_dasm(stream, pc, op, opcodes); break; // illegal case 0x2e:size = handle05_2f_3f_2e_dasm(stream, pc, op, opcodes); break; // illegal case 0x2f:size = handle05_2f_3f_2f_dasm(stream, pc, op, opcodes); break; // illegal case 0x30:size = handle05_2f_3f_30_dasm(stream, pc, op, opcodes); break; // illegal case 0x31:size = handle05_2f_3f_31_dasm(stream, pc, op, opcodes); break; // illegal case 0x32:size = handle05_2f_3f_32_dasm(stream, pc, op, opcodes); break; // illegal case 0x33:size = handle05_2f_3f_33_dasm(stream, pc, op, opcodes); break; // illegal case 0x34:size = handle05_2f_3f_34_dasm(stream, pc, op, opcodes); break; // illegal case 0x35:size = handle05_2f_3f_35_dasm(stream, pc, op, opcodes); break; // illegal case 0x36:size = handle05_2f_3f_36_dasm(stream, pc, op, opcodes); break; // illegal case 0x37:size = handle05_2f_3f_37_dasm(stream, pc, op, opcodes); break; // illegal case 0x38:size = handle05_2f_3f_38_dasm(stream, pc, op, opcodes); break; // illegal case 0x39:size = handle05_2f_3f_39_dasm(stream, pc, op, opcodes); break; // illegal case 0x3a:size = handle05_2f_3f_3a_dasm(stream, pc, op, opcodes); break; // illegal case 0x3b:size = handle05_2f_3f_3b_dasm(stream, pc, op, opcodes); break; // illegal case 0x3c:size = handle05_2f_3f_3c_dasm(stream, pc, op, opcodes); break; // illegal case 0x3d:size = handle05_2f_3f_3d_dasm(stream, pc, op, opcodes); break; // illegal case 0x3e:size = handle05_2f_3f_3e_dasm(stream, pc, op, opcodes); break; // illegal case 0x3f:size = handle05_2f_3f_3f_dasm(stream, pc, op, opcodes); break; // illegal } return size; } // this is an Extension ALU group, maybe optional on some CPUs? int arcompact_disassembler::handle05_dasm(std::ostream &stream, offs_t pc, uint32_t op, const data_buffer &opcodes) { int size = 4; uint8_t subinstr = (op & 0x003f0000) >> 16; op &= ~0x003f0000; switch (subinstr) { case 0x00:size = handle05_00_dasm(stream, pc, op, opcodes); break; // ASL case 0x01:size = handle05_01_dasm(stream, pc, op, opcodes); break; // LSR case 0x02:size = handle05_02_dasm(stream, pc, op, opcodes); break; // ASR case 0x03:size = handle05_03_dasm(stream, pc, op, opcodes); break; // ROR case 0x04:size = handle05_04_dasm(stream, pc, op, opcodes); break; // MUL64 case 0x05:size = handle05_05_dasm(stream, pc, op, opcodes); break; // MULU64 case 0x06:size = handle05_06_dasm(stream, pc, op, opcodes); break; // ADDS case 0x07:size = handle05_07_dasm(stream, pc, op, opcodes); break; // SUBS case 0x08:size = handle05_08_dasm(stream, pc, op, opcodes); break; // DIVAW case 0x09:size = handle05_09_dasm(stream, pc, op, opcodes); break; // illegal case 0x0a:size = handle05_0a_dasm(stream, pc, op, opcodes); break; // ASLS case 0x0b:size = handle05_0b_dasm(stream, pc, op, opcodes); break; // ASRS case 0x0c:size = handle05_0c_dasm(stream, pc, op, opcodes); break; // illegal case 0x0d:size = handle05_0d_dasm(stream, pc, op, opcodes); break; // illegal case 0x0e:size = handle05_0e_dasm(stream, pc, op, opcodes); break; // illegal case 0x0f:size = handle05_0f_dasm(stream, pc, op, opcodes); break; // illegal case 0x10:size = handle05_10_dasm(stream, pc, op, opcodes); break; // illegal case 0x11:size = handle05_11_dasm(stream, pc, op, opcodes); break; // illegal case 0x12:size = handle05_12_dasm(stream, pc, op, opcodes); break; // illegal case 0x13:size = handle05_13_dasm(stream, pc, op, opcodes); break; // illegal case 0x14:size = handle05_14_dasm(stream, pc, op, opcodes); break; // illegal case 0x15:size = handle05_15_dasm(stream, pc, op, opcodes); break; // illegal case 0x16:size = handle05_16_dasm(stream, pc, op, opcodes); break; // illegal case 0x17:size = handle05_17_dasm(stream, pc, op, opcodes); break; // illegal case 0x18:size = handle05_18_dasm(stream, pc, op, opcodes); break; // illegal case 0x19:size = handle05_19_dasm(stream, pc, op, opcodes); break; // illegal case 0x1a:size = handle05_1a_dasm(stream, pc, op, opcodes); break; // illegal case 0x1b:size = handle05_1b_dasm(stream, pc, op, opcodes); break; // illegal case 0x1c:size = handle05_1c_dasm(stream, pc, op, opcodes); break; // illegal case 0x1d:size = handle05_1d_dasm(stream, pc, op, opcodes); break; // illegal case 0x1e:size = handle05_1e_dasm(stream, pc, op, opcodes); break; // illegal case 0x1f:size = handle05_1f_dasm(stream, pc, op, opcodes); break; // illegal case 0x20:size = handle05_20_dasm(stream, pc, op, opcodes); break; // illegal case 0x21:size = handle05_21_dasm(stream, pc, op, opcodes); break; // illegal case 0x22:size = handle05_22_dasm(stream, pc, op, opcodes); break; // illegal case 0x23:size = handle05_23_dasm(stream, pc, op, opcodes); break; // illegal case 0x24:size = handle05_24_dasm(stream, pc, op, opcodes); break; // illegal case 0x25:size = handle05_25_dasm(stream, pc, op, opcodes); break; // illegal case 0x26:size = handle05_26_dasm(stream, pc, op, opcodes); break; // illegal case 0x27:size = handle05_27_dasm(stream, pc, op, opcodes); break; // illegal case 0x28:size = handle05_28_dasm(stream, pc, op, opcodes); break; // ADDSDW case 0x29:size = handle05_29_dasm(stream, pc, op, opcodes); break; // SUBSDW case 0x2a:size = handle05_2a_dasm(stream, pc, op, opcodes); break; // illegal case 0x2b:size = handle05_2b_dasm(stream, pc, op, opcodes); break; // illegal case 0x2c:size = handle05_2c_dasm(stream, pc, op, opcodes); break; // illegal case 0x2d:size = handle05_2d_dasm(stream, pc, op, opcodes); break; // illegal case 0x2e:size = handle05_2e_dasm(stream, pc, op, opcodes); break; // illegal case 0x2f:size = handle05_2f_dasm(stream, pc, op, opcodes); break; // SOPs case 0x30:size = handle05_30_dasm(stream, pc, op, opcodes); break; // illegal case 0x31:size = handle05_31_dasm(stream, pc, op, opcodes); break; // illegal case 0x32:size = handle05_32_dasm(stream, pc, op, opcodes); break; // illegal case 0x33:size = handle05_33_dasm(stream, pc, op, opcodes); break; // illegal case 0x34:size = handle05_34_dasm(stream, pc, op, opcodes); break; // illegal case 0x35:size = handle05_35_dasm(stream, pc, op, opcodes); break; // illegal case 0x36:size = handle05_36_dasm(stream, pc, op, opcodes); break; // illegal case 0x37:size = handle05_37_dasm(stream, pc, op, opcodes); break; // illegal case 0x38:size = handle05_38_dasm(stream, pc, op, opcodes); break; // illegal case 0x39:size = handle05_39_dasm(stream, pc, op, opcodes); break; // illegal case 0x3a:size = handle05_3a_dasm(stream, pc, op, opcodes); break; // illegal case 0x3b:size = handle05_3b_dasm(stream, pc, op, opcodes); break; // illegal case 0x3c:size = handle05_3c_dasm(stream, pc, op, opcodes); break; // illegal case 0x3d:size = handle05_3d_dasm(stream, pc, op, opcodes); break; // illegal case 0x3e:size = handle05_3e_dasm(stream, pc, op, opcodes); break; // illegal case 0x3f:size = handle05_3f_dasm(stream, pc, op, opcodes); break; // illegal } return size; } int arcompact_disassembler::handle0c_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; uint8_t subinstr = (op & 0x0018) >> 3; op &= ~0x0018; switch (subinstr) { case 0x00:size = handle0c_00_dasm(stream, pc, op, opcodes); break; // LD_S case 0x01:size = handle0c_01_dasm(stream, pc, op, opcodes); break; // LDB_S case 0x02:size = handle0c_02_dasm(stream, pc, op, opcodes); break; // LDW_S case 0x03:size = handle0c_03_dasm(stream, pc, op, opcodes); break; // ADD_S } return size; } int arcompact_disassembler::handle0d_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; uint8_t subinstr = (op & 0x0018) >> 3; op &= ~0x0018; switch (subinstr) { case 0x00:size = handle0d_00_dasm(stream, pc, op, opcodes); break; // ADD_S case 0x01:size = handle0d_01_dasm(stream, pc, op, opcodes); break; // SUB_S case 0x02:size = handle0d_02_dasm(stream, pc, op, opcodes); break; // ASL_S case 0x03:size = handle0d_03_dasm(stream, pc, op, opcodes); break; // ASR_S } return size; } int arcompact_disassembler::handle0e_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; uint8_t subinstr = (op & 0x0018) >> 3; op &= ~0x0018; switch (subinstr) { case 0x00:size = handle0e_00_dasm(stream, pc, op, opcodes); break; // ADD_S case 0x01:size = handle0e_01_dasm(stream, pc, op, opcodes); break; // MOV_S case 0x02:size = handle0e_02_dasm(stream, pc, op, opcodes); break; // CMP_S case 0x03:size = handle0e_03_dasm(stream, pc, op, opcodes); break; // MOV_S } return size; } int arcompact_disassembler::handle0f_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; // General Register Instructions (16-bit) // 0111 1bbb ccci iiii uint8_t subinstr = (op & 0x01f) >> 0; op &= ~0x001f; switch (subinstr) { case 0x00:size = handle0f_00_dasm(stream, pc, op, opcodes); break; // SOPs case 0x01:size = handle0f_01_dasm(stream, pc, op, opcodes); break; // 0x01 case 0x02:size = handle0f_02_dasm(stream, pc, op, opcodes); break; // SUB_S case 0x03:size = handle0f_03_dasm(stream, pc, op, opcodes); break; // 0x03 case 0x04:size = handle0f_04_dasm(stream, pc, op, opcodes); break; // AND_S case 0x05:size = handle0f_05_dasm(stream, pc, op, opcodes); break; // OR_S case 0x06:size = handle0f_06_dasm(stream, pc, op, opcodes); break; // BIC_S case 0x07:size = handle0f_07_dasm(stream, pc, op, opcodes); break; // XOR_S case 0x08:size = handle0f_08_dasm(stream, pc, op, opcodes); break; // 0x08 case 0x09:size = handle0f_09_dasm(stream, pc, op, opcodes); break; // 0x09 case 0x0a:size = handle0f_0a_dasm(stream, pc, op, opcodes); break; // 0x0a case 0x0b:size = handle0f_0b_dasm(stream, pc, op, opcodes); break; // TST_S case 0x0c:size = handle0f_0c_dasm(stream, pc, op, opcodes); break; // MUL64_S case 0x0d:size = handle0f_0d_dasm(stream, pc, op, opcodes); break; // SEXB_S case 0x0e:size = handle0f_0e_dasm(stream, pc, op, opcodes); break; // SEXW_S case 0x0f:size = handle0f_0f_dasm(stream, pc, op, opcodes); break; // EXTB_S case 0x10:size = handle0f_10_dasm(stream, pc, op, opcodes); break; // EXTW_S case 0x11:size = handle0f_11_dasm(stream, pc, op, opcodes); break; // ABS_S case 0x12:size = handle0f_12_dasm(stream, pc, op, opcodes); break; // NOT_S case 0x13:size = handle0f_13_dasm(stream, pc, op, opcodes); break; // NEG_S case 0x14:size = handle0f_14_dasm(stream, pc, op, opcodes); break; // ADD1_S case 0x15:size = handle0f_15_dasm(stream, pc, op, opcodes); break; // ADD2_S case 0x16:size = handle0f_16_dasm(stream, pc, op, opcodes); break; // ADD3_S case 0x17:size = handle0f_17_dasm(stream, pc, op, opcodes); break; // 0x17 case 0x18:size = handle0f_18_dasm(stream, pc, op, opcodes); break; // ASL_S (multiple) case 0x19:size = handle0f_19_dasm(stream, pc, op, opcodes); break; // LSR_S (multiple) case 0x1a:size = handle0f_1a_dasm(stream, pc, op, opcodes); break; // ASR_S (multiple) case 0x1b:size = handle0f_1b_dasm(stream, pc, op, opcodes); break; // ASL_S (single) case 0x1c:size = handle0f_1c_dasm(stream, pc, op, opcodes); break; // LSR_S (single) case 0x1d:size = handle0f_1d_dasm(stream, pc, op, opcodes); break; // ASR_S (single) case 0x1e:size = handle0f_1e_dasm(stream, pc, op, opcodes); break; // TRAP (not a5?) case 0x1f:size = handle0f_1f_dasm(stream, pc, op, opcodes); break; // BRK_S ( 0x7fff only? ) } return size; } int arcompact_disassembler::handle0f_00_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; uint8_t subinstr = (op & 0x00e0) >> 5; op &= ~0x00e0; switch (subinstr) { case 0x00:size = handle0f_00_00_dasm(stream, pc, op, opcodes); break; // J_S case 0x01:size = handle0f_00_01_dasm(stream, pc, op, opcodes); break; // J_S.D case 0x02:size = handle0f_00_02_dasm(stream, pc, op, opcodes); break; // JL_S case 0x03:size = handle0f_00_03_dasm(stream, pc, op, opcodes); break; // JL_S.D case 0x04:size = handle0f_00_04_dasm(stream, pc, op, opcodes); break; // 0x04 case 0x05:size = handle0f_00_05_dasm(stream, pc, op, opcodes); break; // 0x05 case 0x06:size = handle0f_00_06_dasm(stream, pc, op, opcodes); break; // SUB_S.NE case 0x07:size = handle0f_00_07_dasm(stream, pc, op, opcodes); break; // ZOPs } return size; } int arcompact_disassembler::handle0f_00_07_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; // General Operations w/o Register // 01111 iii 111 00000 uint8_t subinstr3 = (op & 0x0700) >> 8; op &= ~0x0700; switch (subinstr3) { case 0x00:size = handle0f_00_07_00_dasm(stream, pc, op, opcodes); break; // NOP_S case 0x01:size = handle0f_00_07_01_dasm(stream, pc, op, opcodes); break; // UNIMP_S case 0x02:size = handle0f_00_07_02_dasm(stream, pc, op, opcodes); break; // 0x02 case 0x03:size = handle0f_00_07_03_dasm(stream, pc, op, opcodes); break; // 0x03 case 0x04:size = handle0f_00_07_04_dasm(stream, pc, op, opcodes); break; // JEQ_S [BLINK] case 0x05:size = handle0f_00_07_05_dasm(stream, pc, op, opcodes); break; // JNE_S [BLINK] case 0x06:size = handle0f_00_07_06_dasm(stream, pc, op, opcodes); break; // J_S [BLINK] case 0x07:size = handle0f_00_07_07_dasm(stream, pc, op, opcodes); break; // J_S.D [BLINK] } return size; } int arcompact_disassembler::handle17_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; uint8_t subinstr = (op & 0x00e0) >> 5; op &= ~0x00e0; switch (subinstr) { case 0x00:size = handle17_00_dasm(stream, pc, op, opcodes); break; // ASL_S case 0x01:size = handle17_01_dasm(stream, pc, op, opcodes); break; // LSR_S case 0x02:size = handle17_02_dasm(stream, pc, op, opcodes); break; // ASR_S case 0x03:size = handle17_03_dasm(stream, pc, op, opcodes); break; // SUB_S case 0x04:size = handle17_04_dasm(stream, pc, op, opcodes); break; // BSET_S case 0x05:size = handle17_05_dasm(stream, pc, op, opcodes); break; // BCLR_S case 0x06:size = handle17_06_dasm(stream, pc, op, opcodes); break; // BMSK_S case 0x07:size = handle17_07_dasm(stream, pc, op, opcodes); break; // BTST_S } return size; } int arcompact_disassembler::handle18_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; // Stack Pointer Based Instructions (16-bit) // 11000 bbb iii uuuuu uint8_t subinstr = (op & 0x00e0) >> 5; op &= ~0x00e0; switch (subinstr) { case 0x00:size = handle18_00_dasm(stream, pc, op, opcodes); break; // LD_S (SP) case 0x01:size = handle18_01_dasm(stream, pc, op, opcodes); break; // LDB_S (SP) case 0x02:size = handle18_02_dasm(stream, pc, op, opcodes); break; // ST_S (SP) case 0x03:size = handle18_03_dasm(stream, pc, op, opcodes); break; // STB_S (SP) case 0x04:size = handle18_04_dasm(stream, pc, op, opcodes); break; // ADD_S (SP) case 0x05:size = handle18_05_dasm(stream, pc, op, opcodes); break; // subtable 18_05 case 0x06:size = handle18_06_dasm(stream, pc, op, opcodes); break; // subtable 18_06 case 0x07:size = handle18_07_dasm(stream, pc, op, opcodes); break; // subtable 18_07 } return size; } int arcompact_disassembler::handle18_05_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; uint8_t subinstr2 = (op & 0x0700) >> 8; op &= ~0x0700; switch (subinstr2) { case 0x00:size = handle18_05_00_dasm(stream, pc, op, opcodes); break; // ADD_S (SP) case 0x01:size = handle18_05_01_dasm(stream, pc, op, opcodes); break; // SUB_S (SP) case 0x02:size = handle18_05_02_dasm(stream, pc, op, opcodes); break; // case 0x03:size = handle18_05_03_dasm(stream, pc, op, opcodes); break; // case 0x04:size = handle18_05_04_dasm(stream, pc, op, opcodes); break; // case 0x05:size = handle18_05_05_dasm(stream, pc, op, opcodes); break; // case 0x06:size = handle18_05_06_dasm(stream, pc, op, opcodes); break; // case 0x07:size = handle18_05_07_dasm(stream, pc, op, opcodes); break; // } return size; } int arcompact_disassembler::handle18_06_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; uint8_t subinstr2 = (op & 0x001f) >> 0; op &= ~0x001f; switch (subinstr2) { case 0x00:size = handle18_06_00_dasm(stream, pc, op, opcodes); break; // case 0x01:size = handle18_06_01_dasm(stream, pc, op, opcodes); break; // POP_S b case 0x02:size = handle18_06_02_dasm(stream, pc, op, opcodes); break; // case 0x03:size = handle18_06_03_dasm(stream, pc, op, opcodes); break; // case 0x04:size = handle18_06_04_dasm(stream, pc, op, opcodes); break; // case 0x05:size = handle18_06_05_dasm(stream, pc, op, opcodes); break; // case 0x06:size = handle18_06_06_dasm(stream, pc, op, opcodes); break; // case 0x07:size = handle18_06_07_dasm(stream, pc, op, opcodes); break; // case 0x08:size = handle18_06_08_dasm(stream, pc, op, opcodes); break; // case 0x09:size = handle18_06_09_dasm(stream, pc, op, opcodes); break; // case 0x0a:size = handle18_06_0a_dasm(stream, pc, op, opcodes); break; // case 0x0b:size = handle18_06_0b_dasm(stream, pc, op, opcodes); break; // case 0x0c:size = handle18_06_0c_dasm(stream, pc, op, opcodes); break; // case 0x0d:size = handle18_06_0d_dasm(stream, pc, op, opcodes); break; // case 0x0e:size = handle18_06_0e_dasm(stream, pc, op, opcodes); break; // case 0x0f:size = handle18_06_0f_dasm(stream, pc, op, opcodes); break; // case 0x10:size = handle18_06_10_dasm(stream, pc, op, opcodes); break; // case 0x11:size = handle18_06_11_dasm(stream, pc, op, opcodes); break; // POP_S blink case 0x12:size = handle18_06_12_dasm(stream, pc, op, opcodes); break; // case 0x13:size = handle18_06_13_dasm(stream, pc, op, opcodes); break; // case 0x14:size = handle18_06_14_dasm(stream, pc, op, opcodes); break; // case 0x15:size = handle18_06_15_dasm(stream, pc, op, opcodes); break; // case 0x16:size = handle18_06_16_dasm(stream, pc, op, opcodes); break; // case 0x17:size = handle18_06_17_dasm(stream, pc, op, opcodes); break; // case 0x18:size = handle18_06_18_dasm(stream, pc, op, opcodes); break; // case 0x19:size = handle18_06_19_dasm(stream, pc, op, opcodes); break; // case 0x1a:size = handle18_06_1a_dasm(stream, pc, op, opcodes); break; // case 0x1b:size = handle18_06_1b_dasm(stream, pc, op, opcodes); break; // case 0x1c:size = handle18_06_1c_dasm(stream, pc, op, opcodes); break; // case 0x1d:size = handle18_06_1d_dasm(stream, pc, op, opcodes); break; // case 0x1e:size = handle18_06_1e_dasm(stream, pc, op, opcodes); break; // case 0x1f:size = handle18_06_1f_dasm(stream, pc, op, opcodes); break; // } return size; } int arcompact_disassembler::handle18_07_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; uint8_t subinstr2 = (op & 0x001f) >> 0; op &= ~0x001f; switch (subinstr2) { case 0x00:size = handle18_07_00_dasm(stream, pc, op, opcodes); break; // case 0x01:size = handle18_07_01_dasm(stream, pc, op, opcodes); break; // PUSH_S b case 0x02:size = handle18_07_02_dasm(stream, pc, op, opcodes); break; // case 0x03:size = handle18_07_03_dasm(stream, pc, op, opcodes); break; // case 0x04:size = handle18_07_04_dasm(stream, pc, op, opcodes); break; // case 0x05:size = handle18_07_05_dasm(stream, pc, op, opcodes); break; // case 0x06:size = handle18_07_06_dasm(stream, pc, op, opcodes); break; // case 0x07:size = handle18_07_07_dasm(stream, pc, op, opcodes); break; // case 0x08:size = handle18_07_08_dasm(stream, pc, op, opcodes); break; // case 0x09:size = handle18_07_09_dasm(stream, pc, op, opcodes); break; // case 0x0a:size = handle18_07_0a_dasm(stream, pc, op, opcodes); break; // case 0x0b:size = handle18_07_0b_dasm(stream, pc, op, opcodes); break; // case 0x0c:size = handle18_07_0c_dasm(stream, pc, op, opcodes); break; // case 0x0d:size = handle18_07_0d_dasm(stream, pc, op, opcodes); break; // case 0x0e:size = handle18_07_0e_dasm(stream, pc, op, opcodes); break; // case 0x0f:size = handle18_07_0f_dasm(stream, pc, op, opcodes); break; // case 0x10:size = handle18_07_10_dasm(stream, pc, op, opcodes); break; // case 0x11:size = handle18_07_11_dasm(stream, pc, op, opcodes); break; // PUSH_S blink case 0x12:size = handle18_07_12_dasm(stream, pc, op, opcodes); break; // case 0x13:size = handle18_07_13_dasm(stream, pc, op, opcodes); break; // case 0x14:size = handle18_07_14_dasm(stream, pc, op, opcodes); break; // case 0x15:size = handle18_07_15_dasm(stream, pc, op, opcodes); break; // case 0x16:size = handle18_07_16_dasm(stream, pc, op, opcodes); break; // case 0x17:size = handle18_07_17_dasm(stream, pc, op, opcodes); break; // case 0x18:size = handle18_07_18_dasm(stream, pc, op, opcodes); break; // case 0x19:size = handle18_07_19_dasm(stream, pc, op, opcodes); break; // case 0x1a:size = handle18_07_1a_dasm(stream, pc, op, opcodes); break; // case 0x1b:size = handle18_07_1b_dasm(stream, pc, op, opcodes); break; // case 0x1c:size = handle18_07_1c_dasm(stream, pc, op, opcodes); break; // case 0x1d:size = handle18_07_1d_dasm(stream, pc, op, opcodes); break; // case 0x1e:size = handle18_07_1e_dasm(stream, pc, op, opcodes); break; // case 0x1f:size = handle18_07_1f_dasm(stream, pc, op, opcodes); break; // } return size; } int arcompact_disassembler::handle19_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; uint8_t subinstr = (op & 0x0600) >> 9; op &= ~0x0600; switch (subinstr) { case 0x00:size = handle19_00_dasm(stream, pc, op, opcodes); break; // LD_S (GP) case 0x01:size = handle19_01_dasm(stream, pc, op, opcodes); break; // LDB_S (GP) case 0x02:size = handle19_02_dasm(stream, pc, op, opcodes); break; // LDW_S (GP) case 0x03:size = handle19_03_dasm(stream, pc, op, opcodes); break; // ADD_S (GP) } return size; } int arcompact_disassembler::handle1c_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; uint8_t subinstr = (op & 0x0080) >> 7; op &= ~0x0080; switch (subinstr) { case 0x00:size = handle1c_00_dasm(stream, pc, op, opcodes); break; // ADD_S case 0x01:size = handle1c_01_dasm(stream, pc, op, opcodes); break; // CMP_S } return size; } int arcompact_disassembler::handle1d_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; uint8_t subinstr = (op & 0x0080) >> 7; op &= ~0x0080; switch (subinstr) { case 0x00:size = handle1d_00_dasm(stream, pc, op, opcodes); break; // BREQ_S case 0x01:size = handle1d_01_dasm(stream, pc, op, opcodes); break; // BRNE_S } return size; } int arcompact_disassembler::handle1e_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; uint8_t subinstr = (op & 0x0600) >> 9; op &= ~0x0600; switch (subinstr) { case 0x00:size = handle1e_00_dasm(stream, pc, op, opcodes); break; // B_S case 0x01:size = handle1e_01_dasm(stream, pc, op, opcodes); break; // BEQ_S case 0x02:size = handle1e_02_dasm(stream, pc, op, opcodes); break; // BNE_S case 0x03:size = handle1e_03_dasm(stream, pc, op, opcodes); break; // Bcc_S } return size; } int arcompact_disassembler::handle1e_03_dasm(std::ostream &stream, offs_t pc, uint16_t op, const data_buffer &opcodes) { int size = 2; uint8_t subinstr2 = (op & 0x01c0) >> 6; op &= ~0x01c0; switch (subinstr2) { case 0x00:size = handle1e_03_00_dasm(stream, pc, op, opcodes); break; // BGT_S case 0x01:size = handle1e_03_01_dasm(stream, pc, op, opcodes); break; // BGE_S case 0x02:size = handle1e_03_02_dasm(stream, pc, op, opcodes); break; // BLT_S case 0x03:size = handle1e_03_03_dasm(stream, pc, op, opcodes); break; // BLE_S case 0x04:size = handle1e_03_04_dasm(stream, pc, op, opcodes); break; // BHI_S case 0x05:size = handle1e_03_05_dasm(stream, pc, op, opcodes); break; // BHS_S case 0x06:size = handle1e_03_06_dasm(stream, pc, op, opcodes); break; // BLO_S case 0x07:size = handle1e_03_07_dasm(stream, pc, op, opcodes); break; // BLS_S } return size; }