diff options
Diffstat (limited to 'src/devices/cpu/sparc/sparcdasm.cpp')
-rw-r--r-- | src/devices/cpu/sparc/sparcdasm.cpp | 126 |
1 files changed, 73 insertions, 53 deletions
diff --git a/src/devices/cpu/sparc/sparcdasm.cpp b/src/devices/cpu/sparc/sparcdasm.cpp index 584b5ab427a..c0a42cb0b79 100644 --- a/src/devices/cpu/sparc/sparcdasm.cpp +++ b/src/devices/cpu/sparc/sparcdasm.cpp @@ -13,9 +13,9 @@ namespace { - int32_t get_disp16(uint32_t op) { return DISP19; } + int32_t get_disp16(uint32_t op) { return DISP16; } int32_t get_disp19(uint32_t op) { return DISP19; } - int32_t get_disp22(uint32_t op) { return DISP19; } + int32_t get_disp22(uint32_t op) { return DISP22; } const char *bicc_comment(const sparc_disassembler::config *conf, bool use_cc, offs_t pc, uint32_t op) { @@ -176,6 +176,13 @@ const sparc_disassembler::int_op_desc_map::value_type sparc_disassembler::V7_INT { 0x3d, { false, "restore" } } }; +const sparc_disassembler::int_op_desc_map::value_type sparc_disassembler::SPARCLITE_INT_OP_DESC[] = { + { 0x0a, { false, "umul" } }, { 0x1a, { false, "umulcc" } }, + { 0x0b, { false, "smul" } }, { 0x1b, { false, "smulcc" } }, + { 0x1d, { false, "divscc" } }, + { 0x2c, { false, "scan" } } +}; + const sparc_disassembler::int_op_desc_map::value_type sparc_disassembler::V8_INT_OP_DESC[] = { { 0x0a, { false, "umul" } }, { 0x1a, { false, "umulcc" } }, { 0x0b, { false, "smul" } }, { 0x1b, { false, "smulcc" } }, @@ -570,7 +577,7 @@ const sparc_disassembler::vis_op_desc_map::value_type sparc_disassembler::VIS3B_ inline uint32_t sparc_disassembler::freg(uint32_t val, bool shift) const { - return (shift && (m_version >= 9)) ? ((val & 0x1e) | ((val << 5) & 0x20)) : val; + return (shift && (m_version >= v9)) ? ((val & 0x1e) | ((val << 5) & 0x20)) : val; } template <typename T> inline void sparc_disassembler::add_int_op_desc(const T &desc) @@ -610,24 +617,24 @@ inline void sparc_disassembler::pad_op_field(std::ostream &stream, std::streampo stream << ' '; } -sparc_disassembler::sparc_disassembler(const config *conf, unsigned version) +sparc_disassembler::sparc_disassembler(const config *conf, sparc_version version) : sparc_disassembler(conf, version, vis_none) { } -sparc_disassembler::sparc_disassembler(const config *conf, unsigned version, vis_level vis) +sparc_disassembler::sparc_disassembler(const config *conf, sparc_version version, vis_level vis) : m_version(version) , m_vis_level(vis) , m_op_field_width(9) , m_branch_desc{ EMPTY_BRANCH_DESC, - (version >= 9) ? BPCC_DESC : EMPTY_BRANCH_DESC, // branch on integer condition codes with prediction, SPARCv9 - BICC_DESC, // branch on integer condition codes - (version >= 9) ? BPR_DESC : EMPTY_BRANCH_DESC, // branch on integer register with prediction, SPARCv9 + (version >= v9) ? BPCC_DESC : EMPTY_BRANCH_DESC, // branch on integer condition codes with prediction, SPARCv9 + BICC_DESC, // branch on integer condition codes + (version >= v9) ? BPR_DESC : EMPTY_BRANCH_DESC, // branch on integer register with prediction, SPARCv9 EMPTY_BRANCH_DESC, - (version >= 9) ? FBPFCC_DESC : EMPTY_BRANCH_DESC, // branch on floating-point condition codes with prediction, SPARCv9 - FBFCC_DESC, // branch on floating-point condition codes - (version == 8) ? CBCCC_DESC : EMPTY_BRANCH_DESC // branch on coprocessor condition codes, SPARCv8 + (version >= v9) ? FBPFCC_DESC : EMPTY_BRANCH_DESC, // branch on floating-point condition codes with prediction, SPARCv9 + FBFCC_DESC, // branch on floating-point condition codes + (version == v8) ? CBCCC_DESC : EMPTY_BRANCH_DESC // branch on coprocessor condition codes, SPARCv8 } , m_int_op_desc(std::begin(V7_INT_OP_DESC), std::end(V7_INT_OP_DESC)) , m_state_reg_desc() @@ -638,12 +645,16 @@ sparc_disassembler::sparc_disassembler(const config *conf, unsigned version, vis , m_prftch_desc() , m_vis_op_desc() { - if (m_version >= 8) + if (m_version == sparclite) + { + add_int_op_desc(SPARCLITE_INT_OP_DESC); + } + else if (m_version >= v8) { add_int_op_desc(V8_INT_OP_DESC); } - if (m_version >= 9) + if (m_version >= v9) { m_op_field_width = 11; @@ -676,13 +687,17 @@ sparc_disassembler::sparc_disassembler(const config *conf, unsigned version, vis { case vis_3b: add_vis_op_desc(VIS3B_OP_DESC); + [[fallthrough]]; case vis_3: add_fpop1_desc(VIS3_FPOP1_DESC); add_vis_op_desc(VIS3_OP_DESC); + [[fallthrough]]; case vis_2p: add_asi_desc(VIS2P_ASI_DESC); + [[fallthrough]]; case vis_2: add_vis_op_desc(VIS2_OP_DESC); + [[fallthrough]]; case vis_1: m_op_field_width = std::max(m_op_field_width, 12); add_vis_op_desc(VIS1_OP_DESC); @@ -717,6 +732,7 @@ sparc_disassembler::sparc_disassembler(const config *conf, unsigned version, vis m_vis_op_desc.find(0x07c)->second.mnemonic = "ford"; m_vis_op_desc.find(0x07e)->second.mnemonic = "foned"; } + [[fallthrough]]; case vis_none: break; } @@ -740,7 +756,7 @@ offs_t sparc_disassembler::dasm(std::ostream &stream, offs_t pc, uint32_t op) co switch (OP2) { case 0: - util::stream_format(stream, "%-*s0x%06x", m_op_field_width, (m_version >= 9) ? "illtrap" : "unimp", CONST22); + util::stream_format(stream, "%-*s0x%06x", m_op_field_width, (m_version >= v9) ? "illtrap" : "unimp", CONST22); break; case 4: if (IMM22 == 0 && RD == 0) @@ -754,7 +770,7 @@ offs_t sparc_disassembler::dasm(std::ostream &stream, offs_t pc, uint32_t op) co return 4 | SUPPORTED; case 1: util::stream_format(stream, "%-*s%%pc%c0x%08x ! 0x%08x", m_op_field_width, "call", (DISP30 < 0) ? '-' : '+', std::abs(DISP30), pc + DISP30); - return 4 | SUPPORTED; + return 4 | STEP_OVER | step_over_extra(1) | SUPPORTED; case 2: switch (OP3) { @@ -857,14 +873,14 @@ offs_t sparc_disassembler::dasm(std::ostream &stream, offs_t pc, uint32_t op) co case 0x28: return dasm_read_state_reg(stream, pc, op); case 0x29: - if (m_version <= 8) + if (m_version < v9) { util::stream_format(stream, "%-*s%%psr,%s", m_op_field_width, "rd", REG_NAMES[RD]); return 4 | SUPPORTED; } break; case 0x2a: - if (m_version >= 9) + if (m_version >= v9) { if (V9_PRIV_REG_NAMES[RS1]) { @@ -879,7 +895,7 @@ offs_t sparc_disassembler::dasm(std::ostream &stream, offs_t pc, uint32_t op) co } break; case 0x2b: - if (m_version >= 9) + if (m_version >= v9) { if (!USEIMM) { @@ -896,7 +912,7 @@ offs_t sparc_disassembler::dasm(std::ostream &stream, offs_t pc, uint32_t op) co case 0x2c: return dasm_move_cond(stream, pc, op); case 0x2e: - if ((m_version >= 9) && (RS1 == 0)) + if ((m_version >= v9) && (RS1 == 0)) { if (USEIMM) util::stream_format(stream, "%-*s%d,%s", m_op_field_width, "popc", SIMM13, REG_NAMES[RD]); else util::stream_format(stream, "%-*s%s,%s", m_op_field_width, "popc", REG_NAMES[RS2], REG_NAMES[RD]); @@ -908,7 +924,7 @@ offs_t sparc_disassembler::dasm(std::ostream &stream, offs_t pc, uint32_t op) co case 0x30: return dasm_write_state_reg(stream, pc, op); case 0x31: - if (m_version >= 9) + if (m_version >= v9) { switch (RD) { @@ -936,7 +952,7 @@ offs_t sparc_disassembler::dasm(std::ostream &stream, offs_t pc, uint32_t op) co } break; case 0x32: - if (m_version >= 9) + if (m_version >= v9) { if (V9_PRIV_REG_NAMES[RD]) { @@ -963,7 +979,7 @@ offs_t sparc_disassembler::dasm(std::ostream &stream, offs_t pc, uint32_t op) co } break; case 0x33: - if (m_version <= 8) + if (m_version < v9) { if (RS1 == 0) { @@ -994,13 +1010,9 @@ offs_t sparc_disassembler::dasm(std::ostream &stream, offs_t pc, uint32_t op) co case 0x3a: return dasm_tcc(stream, pc, op); case 0x3b: - if (m_version >= 8) - { - util::stream_format(stream, "%-*s", m_op_field_width, "flush"); - dasm_address(stream, op); - return 4 | SUPPORTED; - } - break; + util::stream_format(stream, "%-*s", m_op_field_width, m_version >= v8 ? "flush" : "iflush"); + dasm_address(stream, op); + return 4 | SUPPORTED; case 0x3c: if (!USEIMM && (RS1 == RS2) && (RS2 == RD) && (RD == 0)) { @@ -1016,12 +1028,12 @@ offs_t sparc_disassembler::dasm(std::ostream &stream, offs_t pc, uint32_t op) co } break; case 0x3e: - if ((m_version >= 9) & ((op & 0x7ffff) == 0)) + if ((m_version >= v9) & ((op & 0x7ffff) == 0)) { switch (RD) { - case 0: util::stream_format(stream, "done"); return 4 | SUPPORTED; - case 1: util::stream_format(stream, "retry"); return 4 | SUPPORTED; + case 0: util::stream_format(stream, "done"); return 4 | STEP_OUT | SUPPORTED; + case 1: util::stream_format(stream, "retry"); return 4 | STEP_OUT | SUPPORTED; } } break; @@ -1072,7 +1084,7 @@ offs_t sparc_disassembler::dasm_invalid(std::ostream &stream, offs_t pc, uint32_ } else if ((OP == 2) && ((OP3 == 0x36) || (OP3 == 0x37))) { - if (m_version >= 9) + if (m_version >= v9) util::stream_format(stream, "IMPDEP%d impl-dep=%02x impl-dep=%05x", 1 + (OP3 & 1), RD, op & 0x7ffff); else util::stream_format(stream, "CPop%d opf=%03x rd=%d rs1=%d rs2=%d", 1 + (OP3 & 1), OPC, RD, RS1, RS2); @@ -1101,13 +1113,16 @@ offs_t sparc_disassembler::dasm_branch(std::ostream &stream, offs_t pc, uint32_t //const char * const comment(desc.get_comment ? desc.get_comment(m_config, desc.use_cc, pc, op) : nullptr); //if (comment) util::stream_format(stream, " - %s", comment); - return 4 | SUPPORTED; + if ((COND & 7) != 0) + return 4 | STEP_COND | step_over_extra(1) | SUPPORTED; + else + return 4 | SUPPORTED; // branch never or always } offs_t sparc_disassembler::dasm_shift(std::ostream &stream, offs_t pc, uint32_t op, const char *mnemonic, const char *mnemonicx, const char *mnemonicx0) const { - if ((m_version >= 9) && USEEXT) + if ((m_version >= v9) && USEEXT) { if (USEIMM) util::stream_format(stream, "%-*s%s,%d,%s", m_op_field_width, mnemonicx, REG_NAMES[RS1], SHCNT64, REG_NAMES[RD]); @@ -1137,9 +1152,9 @@ offs_t sparc_disassembler::dasm_read_state_reg(std::ostream &stream, offs_t pc, util::stream_format(stream, "%-*s%%y,%s", m_op_field_width, "rd", REG_NAMES[RD]); return 4 | SUPPORTED; } - else if ((m_version == 8) || ((m_version >= 9) && !USEIMM)) + else if ((m_version == v8) || (m_version == sparclite) || ((m_version >= v9) && !USEIMM)) { - if (!USEIMM && (RS1 == 15) && (RD == 0)) + if (!USEIMM && (RS1 == 15) && (RD == 0) && (m_version != sparclite)) { util::stream_format(stream, "stbar"); return 4 | SUPPORTED; @@ -1157,7 +1172,7 @@ offs_t sparc_disassembler::dasm_read_state_reg(std::ostream &stream, offs_t pc, } } } - else if ((m_version >= 9) && USEIMM && (RS1 == 15) && (RD == 0)) + else if ((m_version >= v9) && USEIMM && (RS1 == 15) && (RD == 0)) { util::stream_format(stream, "%-*s", m_op_field_width, "membar"); uint32_t mask(MMASK | (CMASK << 4)); @@ -1197,9 +1212,9 @@ offs_t sparc_disassembler::dasm_write_state_reg(std::ostream &stream, offs_t pc, } return 4 | SUPPORTED; } - else if (m_version >= 8) + else if (m_version >= v8) { - if ((m_version >= 9) && USEIMM && (RS1 == 0) && (RD == 15)) + if ((m_version >= v9) && USEIMM && (RS1 == 0) && (RD == 15)) { util::stream_format(stream, "%-*s%d", m_op_field_width, "sir", SIMM13); return 4 | SUPPORTED; @@ -1246,7 +1261,7 @@ offs_t sparc_disassembler::dasm_write_state_reg(std::ostream &stream, offs_t pc, offs_t sparc_disassembler::dasm_move_cond(std::ostream &stream, offs_t pc, uint32_t op) const { - if ((m_version < 9) || !MOVCC_CC_NAMES[MOVCC]) return dasm_invalid(stream, pc, op); + if ((m_version < v9) || !MOVCC_CC_NAMES[MOVCC]) return dasm_invalid(stream, pc, op); const std::streampos start_position(stream.tellp()); util::stream_format(stream, "mov%s", MOVCC_COND_NAMES[MOVCOND | ((MOVCC << 2) & 16)]); @@ -1261,7 +1276,7 @@ offs_t sparc_disassembler::dasm_move_cond(std::ostream &stream, offs_t pc, uint3 offs_t sparc_disassembler::dasm_move_reg_cond(std::ostream &stream, offs_t pc, uint32_t op) const { - if ((m_version < 9) || !MOVE_INT_COND_MNEMONICS[RCOND]) return dasm_invalid(stream, pc, op); + if ((m_version < v9) || !MOVE_INT_COND_MNEMONICS[RCOND]) return dasm_invalid(stream, pc, op); if (USEIMM) util::stream_format(stream, "%-*s%s,%d,%s", m_op_field_width, MOVE_INT_COND_MNEMONICS[RCOND], REG_NAMES[RS1], SIMM10, REG_NAMES[RD]); @@ -1288,7 +1303,7 @@ offs_t sparc_disassembler::dasm_fpop1(std::ostream &stream, offs_t pc, uint32_t offs_t sparc_disassembler::dasm_fpop2(std::ostream &stream, offs_t pc, uint32_t op) const { // Move Floating-Point Register on Condition - if ((m_version >= 9) && (((op >> 18) & 1) == 0) && MOVCC_CC_NAMES[OPFCC]) + if ((m_version >= v9) && (((op >> 18) & 1) == 0) && MOVCC_CC_NAMES[OPFCC]) { const char *mnemonic; bool shift; @@ -1312,7 +1327,7 @@ offs_t sparc_disassembler::dasm_fpop2(std::ostream &stream, offs_t pc, uint32_t const auto it(m_fpop2_desc.find(OPF)); if (it != m_fpop2_desc.end()) { - if (m_version >= 9) + if (m_version >= v9) { if (it->second.int_rs1) { @@ -1391,6 +1406,7 @@ offs_t sparc_disassembler::dasm_jmpl(std::ostream &stream, offs_t pc, uint32_t o if (USEIMM && (RD == 0) && ((RS1 == 15) || (RS1 == 31)) && (SIMM13 == 8)) { util::stream_format(stream, (RS1 == 31) ? "ret" : "retl"); + return 4 | STEP_OUT | step_over_extra(1) | SUPPORTED; } else { @@ -1398,16 +1414,19 @@ offs_t sparc_disassembler::dasm_jmpl(std::ostream &stream, offs_t pc, uint32_t o dasm_address(stream, op); if ((RD != 0) && (RD != 15)) util::stream_format(stream, ",%s", REG_NAMES[RD]); + if (RD != 0) + return 4 | STEP_OVER | step_over_extra(1) | SUPPORTED; + else + return 4 | SUPPORTED; } - return 4 | SUPPORTED; } offs_t sparc_disassembler::dasm_return(std::ostream &stream, offs_t pc, uint32_t op) const { - util::stream_format(stream, "%-*s", m_op_field_width, (m_version >= 9) ? "return" : "rett"); + util::stream_format(stream, "%-*s", m_op_field_width, (m_version >= v9) ? "return" : "rett"); dasm_address(stream, op); - return 4 | SUPPORTED; + return 4 | STEP_OUT | step_over_extra(1) | SUPPORTED; } @@ -1419,7 +1438,7 @@ offs_t sparc_disassembler::dasm_tcc(std::ostream &stream, offs_t pc, uint32_t op }; static const char *const cc_names[4] = { "%icc", nullptr, "%xcc", nullptr }; const char *const mnemonic(tcc_names[COND]); - if (m_version >= 9) + if (m_version >= v9) { const char *const cc(cc_names[TCCCC]); if (!cc) return dasm_invalid(stream, pc, op); @@ -1440,13 +1459,13 @@ offs_t sparc_disassembler::dasm_tcc(std::ostream &stream, offs_t pc, uint32_t op else if (RS2 == 0) util::stream_format(stream, "%s", REG_NAMES[RS1]); else util::stream_format(stream, "%s,%s", REG_NAMES[RS1], REG_NAMES[RS2]); } - return 4 | SUPPORTED; + return 4 | STEP_OVER | SUPPORTED; } offs_t sparc_disassembler::dasm_ldst(std::ostream &stream, offs_t pc, uint32_t op) const { - if (m_version >= 9) + if (m_version >= v9) { switch (OP3) { @@ -1463,6 +1482,7 @@ offs_t sparc_disassembler::dasm_ldst(std::ostream &stream, offs_t pc, uint32_t o util::stream_format(stream, "%-*s[", m_op_field_width, "ldx"); dasm_address(stream, op); util::stream_format(stream, "],%%efsr"); + return 4 | SUPPORTED; } break; case 0x25: // Store floating-point state register @@ -1529,8 +1549,8 @@ offs_t sparc_disassembler::dasm_ldst(std::ostream &stream, offs_t pc, uint32_t o dasm_address(stream, op); stream << ']'; return 4 | SUPPORTED; - case 0x26: // Store Floating-point deferred-trap Queue - case 0x36: // Store Coprocessor deferred-trap Queue + case 0x26: // Store Double Floating-point deferred-trap Queue + case 0x36: // Store Double Coprocessor deferred-trap Queue util::stream_format(stream, "%-*s%%%cq,[", m_op_field_width, "std", (OP3 == 0x36) ? 'c' : 'f'); dasm_address(stream, op); stream << ']'; @@ -1542,7 +1562,7 @@ offs_t sparc_disassembler::dasm_ldst(std::ostream &stream, offs_t pc, uint32_t o if (it == m_ldst_desc.end()) return dasm_invalid(stream, pc, op); - if (it->second.alternate && USEIMM && (m_version < 9)) + if (it->second.alternate && USEIMM && (m_version < v9)) return dasm_invalid(stream, pc, op); if (it->second.g0_synth && (RD == 0)) |