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1.1 ! root 1: /* $Id: m68k-impl.h,v 1.10 2003/05/16 21:48:10 fredette Exp $ */ ! 2: ! 3: /* ic/m68k/m68k-impl.h - implementation header file for Motorola 68k emulation: */ ! 4: ! 5: /* ! 6: * Copyright (c) 2002, 2003 Matt Fredette ! 7: * All rights reserved. ! 8: * ! 9: * Redistribution and use in source and binary forms, with or without ! 10: * modification, are permitted provided that the following conditions ! 11: * are met: ! 12: * 1. Redistributions of source code must retain the above copyright ! 13: * notice, this list of conditions and the following disclaimer. ! 14: * 2. Redistributions in binary form must reproduce the above copyright ! 15: * notice, this list of conditions and the following disclaimer in the ! 16: * documentation and/or other materials provided with the distribution. ! 17: * 3. All advertising materials mentioning features or use of this software ! 18: * must display the following acknowledgement: ! 19: * This product includes software developed by Matt Fredette. ! 20: * 4. The name of the author may not be used to endorse or promote products ! 21: * derived from this software without specific prior written permission. ! 22: * ! 23: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR ! 24: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED ! 25: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE ! 26: * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, ! 27: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES ! 28: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR ! 29: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ! 30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, ! 31: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ! 32: * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE ! 33: * POSSIBILITY OF SUCH DAMAGE. ! 34: */ ! 35: ! 36: #ifndef _IC_M68K_IMPL_H ! 37: #define _IC_M68K_IMPL_H ! 38: ! 39: #include <tme/common.h> ! 40: _TME_RCSID("$Id: m68k-impl.h,v 1.10 2003/05/16 21:48:10 fredette Exp $"); ! 41: ! 42: /* includes: */ ! 43: #include <tme/ic/m68k.h> ! 44: #include <tme/generic/ic.h> ! 45: #include <setjmp.h> ! 46: ! 47: /* macros: */ ! 48: ! 49: /* CPUs: */ ! 50: #define TME_M68K_M68000 (0) ! 51: #define TME_M68K_M68010 (1) ! 52: #define TME_M68K_M68020 (2) ! 53: #define TME_M68K_M68030 (3) ! 54: ! 55: /* generic registers: */ ! 56: #define tme_m68k_ireg_uint32(x) tme_m68k_ic.tme_ic_ireg_uint32(x) ! 57: #define tme_m68k_ireg_int32(x) tme_m68k_ic.tme_ic_ireg_int32(x) ! 58: #define tme_m68k_ireg_uint16(x) tme_m68k_ic.tme_ic_ireg_uint16(x) ! 59: #define tme_m68k_ireg_int16(x) tme_m68k_ic.tme_ic_ireg_int16(x) ! 60: #define tme_m68k_ireg_uint8(x) tme_m68k_ic.tme_ic_ireg_uint8(x) ! 61: #define tme_m68k_ireg_int8(x) tme_m68k_ic.tme_ic_ireg_int8(x) ! 62: ! 63: /* flags: */ ! 64: #define TME_M68K_FLAG_C TME_BIT(0) ! 65: #define TME_M68K_FLAG_V TME_BIT(1) ! 66: #define TME_M68K_FLAG_Z TME_BIT(2) ! 67: #define TME_M68K_FLAG_N TME_BIT(3) ! 68: #define TME_M68K_FLAG_X TME_BIT(4) ! 69: #define TME_M68K_FLAG_IPM(x) TME_FIELD_EXTRACTU(x, 8, 3) ! 70: #define TME_M68K_FLAG_M TME_BIT(12) ! 71: #define TME_M68K_FLAG_S TME_BIT(13) ! 72: #define TME_M68K_FLAG_T(x) TME_FIELD_EXTRACTU(x, 14, 2) ! 73: #define TME_M68K_FLAG_CCR (TME_M68K_FLAG_C | TME_M68K_FLAG_V | \ ! 74: TME_M68K_FLAG_Z | TME_M68K_FLAG_N | \ ! 75: TME_M68K_FLAG_X) ! 76: #define TME_M68K_FLAG_SR (TME_M68K_FLAG_CCR | (0x7 << 8) | \ ! 77: TME_M68K_FLAG_M | TME_M68K_FLAG_S | \ ! 78: (0x3 << 14)) ! 79: ! 80: /* conditions: */ ! 81: #define TME_M68K_C_T (0) ! 82: #define TME_M68K_C_F (1) ! 83: #define TME_M68K_C_HI (2) ! 84: #define TME_M68K_C_LS (3) ! 85: #define TME_M68K_C_CC (4) ! 86: #define TME_M68K_C_CS (5) ! 87: #define TME_M68K_C_NE (6) ! 88: #define TME_M68K_C_EQ (7) ! 89: #define TME_M68K_C_VC (8) ! 90: #define TME_M68K_C_VS (9) ! 91: #define TME_M68K_C_PL (10) ! 92: #define TME_M68K_C_MI (11) ! 93: #define TME_M68K_C_GE (12) ! 94: #define TME_M68K_C_LT (13) ! 95: #define TME_M68K_C_GT (14) ! 96: #define TME_M68K_C_LE (15) ! 97: #define TME_M68K_COND_TRUE(ic, c) (_tme_m68k_conditions[(ic)->tme_m68k_ireg_ccr] & TME_BIT(c)) ! 98: ! 99: /* bus cycles: */ ! 100: #define TME_M68K_BUS_CYCLE_NORMAL (0) ! 101: #define TME_M68K_BUS_CYCLE_READ TME_BIT(0) ! 102: #define TME_M68K_BUS_CYCLE_FETCH TME_BIT(1) ! 103: #define TME_M68K_BUS_CYCLE_RMW TME_BIT(2) ! 104: #define TME_M68K_BUS_CYCLE_RAW TME_BIT(3) ! 105: ! 106: /* exceptions: */ ! 107: #define TME_M68K_EXCEPTION_NONE (0) ! 108: #define TME_M68K_EXCEPTION_GROUP0_RESET TME_BIT(0) ! 109: #define TME_M68K_EXCEPTION_GROUP0_AERR TME_BIT(1) ! 110: #define TME_M68K_EXCEPTION_GROUP0_BERR TME_BIT(2) ! 111: #define TME_M68K_EXCEPTION_GROUP1_TRACE TME_BIT(3) ! 112: #define TME_M68K_EXCEPTION_GROUP1_INT(ipl, vec) (((ipl) << 4) | ((vec) << 7)) ! 113: #define TME_M68K_EXCEPTION_IS_GROUP1_INT(x) (((x) >> 4) & 0x7) ! 114: #define TME_M68K_EXCEPTION_GROUP1_INT_VEC(x) (((x) >> 7) & 0xff) ! 115: #define TME_M68K_EXCEPTION_GROUP1_ILL TME_BIT(15) ! 116: #define TME_M68K_EXCEPTION_GROUP1_PRIV TME_BIT(16) ! 117: #define TME_M68K_EXCEPTION_GROUP2(x) ((x) << 17) ! 118: #define TME_M68K_EXCEPTION_IS_GROUP2(x) ((x) >> 17) ! 119: ! 120: /* exception frame formats: */ ! 121: #define TME_M68K_FORMAT_0 (0) ! 122: #define TME_M68K_FORMAT_8 (8) ! 123: ! 124: /* sizes: */ ! 125: #define TME_M68K_SIZE_SUBMAP_X (-2) ! 126: #define TME_M68K_SIZE_UNDEF (-1) ! 127: #define TME_M68K_SIZE_UNSIZED (0) ! 128: #define TME_M68K_SIZE_8 (1) ! 129: #define TME_M68K_SIZE_16 (2) ! 130: #define TME_M68K_SIZE_16U8 (3) ! 131: #define TME_M68K_SIZE_32 (4) ! 132: #define TME_M68K_SIZE_16S32 (5) ! 133: ! 134: /* special opcodes: */ ! 135: #define TME_M68K_SPECOP_UNDEF (-1) ! 136: #define TME_M68K_SPECOP_BCC (0) ! 137: #define TME_M68K_SPECOP_SPECOP16 (1) ! 138: #define TME_M68K_SPECOP_MOVES (2) ! 139: #define TME_M68K_SPECOP_MOVEMEMTOMEM (3) ! 140: #define TME_M68K_SPECOP_ILLEGAL (4) ! 141: #define TME_M68K_SPECOP_MULUL (5) ! 142: #define TME_M68K_SPECOP_DIVUL (6) ! 143: #define TME_M68K_SPECOP_CAS2 (7) ! 144: #define TME_M68K_SPECOP_MOVENONMEMTOMEM (8) ! 145: ! 146: /* major modes of the emulator: */ ! 147: #define TME_M68K_MODE_EXECUTION (0) ! 148: #define TME_M68K_MODE_EXCEPTION (1) ! 149: #define TME_M68K_MODE_RTE (2) ! 150: #define TME_M68K_MODE_STOP (3) ! 151: #define TME_M68K_MODE_HALT (4) ! 152: ! 153: /* mode-specific flags: */ ! 154: #define TME_M68K_EXECUTION_INST_CANFAULT TME_BIT(0) ! 155: ! 156: /* given a linear address, this hashes it into a TLB entry: */ ! 157: #define _TME_M68K_TLB_HASH_SIZE (1024) ! 158: #define TME_M68K_TLB_ENTRY(ic, function_code, linear_address) \ ! 159: (TME_ATOMIC_READ(struct tme_m68k_tlb *, (ic)->_tme_m68k_tlb_array) \ ! 160: + ((linear_address >> 10) & (_TME_M68K_TLB_HASH_SIZE - 1))) ! 161: ! 162: /* macros for sequence control: */ ! 163: #define TME_M68K_SEQUENCE_START \ ! 164: do { \ ! 165: ic->_tme_m68k_sequence._tme_m68k_sequence_mode_flags = 0; \ ! 166: ic->_tme_m68k_sequence._tme_m68k_sequence_transfer_faulted = 0; \ ! 167: ic->_tme_m68k_sequence._tme_m68k_sequence_transfer_next = 1; \ ! 168: } while (/* CONSTCOND */ 0) ! 169: #define TME_M68K_SEQUENCE_RESTARTING \ ! 170: (ic->_tme_m68k_sequence._tme_m68k_sequence_transfer_faulted \ ! 171: >= ic->_tme_m68k_sequence._tme_m68k_sequence_transfer_next) ! 172: #define TME_M68K_SEQUENCE_RESTART \ ! 173: do { \ ! 174: if (!TME_M68K_SEQUENCE_RESTARTING) \ ! 175: ic->_tme_m68k_sequence._tme_m68k_sequence_transfer_faulted = \ ! 176: ic->_tme_m68k_sequence._tme_m68k_sequence_transfer_next; \ ! 177: ic->_tme_m68k_sequence._tme_m68k_sequence_transfer_next = 1; \ ! 178: } while (/* CONSTCOND */ 0) ! 179: #define TME_M68K_SEQUENCE_TRANSFER_STEP \ ! 180: do { \ ! 181: ic->_tme_m68k_sequence._tme_m68k_sequence_transfer_next++; \ ! 182: } while (/* CONSTCOND */ 0) ! 183: ! 184: /* instruction handler macros: */ ! 185: #define TME_M68K_INSN_DECL(name) void name _TME_P((struct tme_m68k *, void *, void *)) ! 186: #ifdef __STDC__ ! 187: #define TME_M68K_INSN(name) void name(struct tme_m68k *ic, void *_op0, void *_op1) ! 188: #else /* !__STDC__ */ ! 189: #define TME_M68K_INSN(name) void name(ic, _op0, _op1) struct tme_m68k *ic; void *_op0, *_op1; ! 190: #endif /* !__STDC__ */ ! 191: #define TME_M68K_INSN_OP0(t) (*((t *) _op0)) ! 192: #define TME_M68K_INSN_OP1(t) (*((t *) _op1)) ! 193: #define TME_M68K_INSN_OPCODE ic->_tme_m68k_insn_opcode ! 194: #define TME_M68K_INSN_SPECOP ic->_tme_m68k_insn_specop ! 195: #define TME_M68K_INSN_OK return ! 196: #define TME_M68K_INSN_EXCEPTION(e) tme_m68k_exception(ic, e) ! 197: #define TME_M68K_INSN_PRIV \ ! 198: if (!TME_M68K_PRIV(ic)) \ ! 199: TME_M68K_INSN_EXCEPTION(TME_M68K_EXCEPTION_GROUP1_PRIV) ! 200: #define TME_M68K_INSN_ILL \ ! 201: TME_M68K_INSN_EXCEPTION(TME_M68K_EXCEPTION_GROUP1_ILL) ! 202: #define TME_M68K_INSN_CANFAULT \ ! 203: do { \ ! 204: ic->_tme_m68k_mode_flags \ ! 205: |= TME_M68K_EXECUTION_INST_CANFAULT; \ ! 206: } while (/* CONSTCOND */ 0) ! 207: #define TME_M68K_INSN_BRANCH(pc) \ ! 208: do { \ ! 209: tme_m68k_verify_end_branch(ic, pc); \ ! 210: ic->tme_m68k_ireg_pc = ic->tme_m68k_ireg_pc_next = (pc); \ ! 211: if (tme_m68k_go_slow(ic)) { \ ! 212: TME_M68K_SEQUENCE_START; \ ! 213: tme_m68k_redispatch(ic); \ ! 214: } \ ! 215: } while (/* CONSTCOND */ 0) ! 216: #define TME_M68K_INSN_CHANGE_SR(reg) \ ! 217: do { \ ! 218: TME_M68K_INSN_PRIV; \ ! 219: tme_m68k_change_sr(ic, reg); \ ! 220: } while (/* CONSTCOND */ 0) ! 221: ! 222: /* logging: */ ! 223: #define TME_M68K_LOG_HANDLE(ic) \ ! 224: (&(ic)->tme_m68k_element->tme_element_log_handle) ! 225: #define tme_m68k_log_start(ic, level, rc) \ ! 226: do { \ ! 227: tme_log_start(TME_M68K_LOG_HANDLE(ic), level, rc) { \ ! 228: if ((ic)->_tme_m68k_mode != TME_M68K_MODE_EXECUTION) { \ ! 229: tme_log_part(TME_M68K_LOG_HANDLE(ic), \ ! 230: "mode=%d ", \ ! 231: (ic)->_tme_m68k_mode); \ ! 232: } \ ! 233: else { \ ! 234: tme_log_part(TME_M68K_LOG_HANDLE(ic), \ ! 235: "pc=%c/0x%08x ", \ ! 236: (((ic)->tme_m68k_ireg_sr \ ! 237: & (TME_M68K_FLAG_M \ ! 238: | TME_M68K_FLAG_S)) \ ! 239: ? 'S' \ ! 240: : 'U'), \ ! 241: ic->tme_m68k_ireg_pc); \ ! 242: } \ ! 243: do ! 244: #define tme_m68k_log_finish(ic) \ ! 245: while (/* CONSTCOND */ 0); \ ! 246: } tme_log_finish(TME_M68K_LOG_HANDLE(ic)); \ ! 247: } while (/* CONSTCOND */ 0) ! 248: #define tme_m68k_log(ic, level, rc, x) \ ! 249: do { \ ! 250: tme_m68k_log_start(ic, level, rc) { \ ! 251: tme_log_part x; \ ! 252: } tme_m68k_log_finish(ic); \ ! 253: } while (/* CONSTCOND */ 0) ! 254: ! 255: /* miscellaneous: */ ! 256: #define TME_M68K_OPNUM_SUBMAP_X (-2) ! 257: #define TME_M68K_OPNUM_UNDEF (-1) ! 258: #define TME_M68K_PRIV(ic) ((ic)->tme_m68k_ireg_sr & TME_M68K_FLAG_S) ! 259: #define TME_M68K_FUNCTION_CODE_DATA(ic) \ ! 260: (TME_M68K_PRIV(ic) ? TME_M68K_FC_SD : TME_M68K_FC_UD) ! 261: #define TME_M68K_FUNCTION_CODE_PROGRAM(ic) \ ! 262: (TME_M68K_PRIV(ic) ? TME_M68K_FC_SP : TME_M68K_FC_UP) ! 263: #define TME_M68K_INSN_WORDS_MAX (11) ! 264: ! 265: /* structures: */ ! 266: struct tme_m68k; ! 267: ! 268: /* an memory read or write function: */ ! 269: typedef void (*_tme_m68k_xfer_memx) _TME_P((struct tme_m68k *)); ! 270: typedef void (*_tme_m68k_xfer_mem) _TME_P((struct tme_m68k *, int)); ! 271: ! 272: /* an m68k opcode map entry: */ ! 273: struct _tme_m68k_opcode { ! 274: ! 275: /* the instruction: */ ! 276: void (*_tme_m68k_opcode_func) _TME_P((struct tme_m68k *, void *, void *)); ! 277: ! 278: /* iff this opcode requires some special operand processing, this is ! 279: its type, else this is TME_M68K_SPECOP_TYPE_UNDEF: */ ! 280: int _tme_m68k_opcode_specop_type; ! 281: ! 282: /* if this opcode has an EA, this is the mask of bus cycles: */ ! 283: int _tme_m68k_opcode_eax_cycles; ! 284: }; ! 285: ! 286: /* an m68k decoder generic map entry: */ ! 287: struct _tme_m68k_decoder_gen { ! 288: ! 289: /* any known operands, else NULL: */ ! 290: void *_tme_m68k_decoder_gen_operand0; ! 291: void *_tme_m68k_decoder_gen_operand1; ! 292: ! 293: /* any known EA size, else TME_M68K_SIZE_UNDEF: */ ! 294: int _tme_m68k_decoder_gen_eax_size; ! 295: ! 296: /* any known immediate operand number, else TME_M68K_OPNUM_UNDEF: */ ! 297: int _tme_m68k_decoder_gen_imm_operand; ! 298: ! 299: /* any known immediate operand size: */ ! 300: int _tme_m68k_decoder_gen_imm_size; ! 301: }; ! 302: ! 303: /* an m68k decoder submap entry: */ ! 304: struct _tme_m68k_decoder_submap { ! 305: ! 306: /* the generic map entry: */ ! 307: struct _tme_m68k_decoder_gen _tme_m68k_decoder_submap_gen; ! 308: ! 309: /* the index for the opcode map: */ ! 310: unsigned int _tme_m68k_decoder_submap_opcode_map_index; ! 311: }; ! 312: ! 313: /* an m68k decoder root map entry: */ ! 314: struct _tme_m68k_decoder_root { ! 315: ! 316: /* the generic map entry: */ ! 317: struct _tme_m68k_decoder_gen _tme_m68k_decoder_root_gen; ! 318: ! 319: /* the opcode map: */ ! 320: const struct _tme_m68k_opcode *_tme_m68k_decoder_root_opcode_map; ! 321: ! 322: /* the submap: */ ! 323: const struct _tme_m68k_decoder_submap *_tme_m68k_decoder_root_submap; ! 324: }; ! 325: ! 326: /* an m68k sequence: */ ! 327: struct _tme_m68k_sequence { ! 328: ! 329: /* the mode of the emulator: */ ! 330: int _tme_m68k_sequence_mode; ! 331: ! 332: /* any mode-specific flags for the sequence: */ ! 333: int _tme_m68k_sequence_mode_flags; ! 334: ! 335: /* the ordinal of the next memory transfer. always starts from one: */ ! 336: unsigned short _tme_m68k_sequence_transfer_next; ! 337: ! 338: /* the ordinal of the memory transfer that faulted. if this is ! 339: greater than or equal to _tme_m68k_sequence_transfer_next, we are ! 340: restarting, and bus cycles and changes to the m68k state are ! 341: forbidden: */ ! 342: unsigned short _tme_m68k_sequence_transfer_faulted; ! 343: ! 344: /* the fault happened after this number of bytes were successfully ! 345: transferred: */ ! 346: unsigned short _tme_m68k_sequence_transfer_faulted_after; ! 347: ! 348: #ifdef _TME_M68K_VERIFY ! 349: /* the sequence unique identifier: */ ! 350: unsigned long _tme_m68k_sequence_uid; ! 351: #endif /* _TME_M68K_VERIFY */ ! 352: }; ! 353: ! 354: /* the m68k state: */ ! 355: struct tme_m68k { ! 356: ! 357: /* the IC data structure. it is beneficial to have this structure ! 358: first, since register numbers can often simply be scaled and ! 359: added without an offset to the struct tme_m68k pointer to get ! 360: to their contents: */ ! 361: struct tme_ic tme_m68k_ic; ! 362: ! 363: /* the m68k type: */ ! 364: int tme_m68k_type; ! 365: ! 366: /* the backpointer to our element: */ ! 367: struct tme_element *tme_m68k_element; ! 368: ! 369: /* our bus connection. if both are defined, the m68k bus connection ! 370: is an adaptation layer for the generic bus connection: */ ! 371: struct tme_m68k_bus_connection *_tme_m68k_bus_connection; ! 372: struct tme_bus_connection *_tme_m68k_bus_generic; ! 373: ! 374: /* a jmp_buf back to the dispatcher: */ ! 375: jmp_buf _tme_m68k_dispatcher; ! 376: ! 377: /* the current sequence: */ ! 378: struct _tme_m68k_sequence _tme_m68k_sequence; ! 379: #define _tme_m68k_mode _tme_m68k_sequence._tme_m68k_sequence_mode ! 380: #define _tme_m68k_mode_flags _tme_m68k_sequence._tme_m68k_sequence_mode_flags ! 381: #define _tme_m68k_insn_uid _tme_m68k_sequence._tme_m68k_sequence_uid ! 382: ! 383: /* the CPU-dependent functions for the different modes: */ ! 384: void (*_tme_m68k_mode_execute) _TME_P((struct tme_m68k *)); ! 385: void (*_tme_m68k_mode_exception) _TME_P((struct tme_m68k *)); ! 386: void (*_tme_m68k_mode_rte) _TME_P((struct tme_m68k *)); ! 387: ! 388: /* the instruction decoder root map, and the instruction burst count: */ ! 389: const struct _tme_m68k_decoder_root *_tme_m68k_decoder_root; ! 390: unsigned int _tme_m68k_instruction_burst; ! 391: ! 392: /* the effective address: */ ! 393: tme_uint32_t _tme_m68k_ea_address; ! 394: unsigned int _tme_m68k_ea_function_code; ! 395: ! 396: /* instruction fetch information: */ ! 397: tme_uint16_t _tme_m68k_insn_opcode; ! 398: tme_uint16_t _tme_m68k_insn_specop; ! 399: tme_uint16_t _tme_m68k_insn_specop2; ! 400: ! 401: /* the instruction buffer: */ ! 402: tme_uint8_t _tme_m68k_insn_buffer[TME_M68K_INSN_WORDS_MAX * sizeof(tme_uint32_t)]; ! 403: unsigned int _tme_m68k_insn_buffer_off; ! 404: tme_uint16_t _tme_m68k_insn_buffer_fetch_total; ! 405: tme_uint16_t _tme_m68k_insn_buffer_fetch_sizes; ! 406: ! 407: /* the TLB entry set, and a separate instruction TLB entry set ! 408: reserved for the executors: */ ! 409: TME_ATOMIC(struct tme_m68k_tlb *, _tme_m68k_tlb_array); ! 410: TME_ATOMIC(struct tme_m68k_tlb *, _tme_m68k_itlb); ! 411: ! 412: /* exception handling information: */ ! 413: tme_uint32_t _tme_m68k_exceptions; ! 414: ! 415: /* nonzero iff this CPU has a 16-bit bus: */ ! 416: int _tme_m68k_bus_16bit; ! 417: ! 418: /* group 0 exception information: */ ! 419: void (*_tme_m68k_group0_hook) _TME_P((struct tme_m68k *)); ! 420: unsigned int _tme_m68k_group0_flags; ! 421: unsigned int _tme_m68k_group0_function_code; ! 422: tme_uint32_t _tme_m68k_group0_address; ! 423: struct _tme_m68k_sequence _tme_m68k_group0_sequence; ! 424: tme_uint8_t _tme_m68k_group0_buffer_read[sizeof(tme_uint32_t)]; ! 425: unsigned int _tme_m68k_group0_buffer_read_size; ! 426: unsigned int _tme_m68k_group0_buffer_read_softrr; ! 427: tme_uint8_t _tme_m68k_group0_buffer_write[sizeof(tme_uint32_t)]; ! 428: unsigned int _tme_m68k_group0_buffer_write_size; ! 429: unsigned int _tme_m68k_group0_buffer_write_softrr; ! 430: ! 431: /* the external request lines: */ ! 432: tme_mutex_t tme_m68k_external_mutex; ! 433: tme_cond_t tme_m68k_external_cond; ! 434: unsigned int tme_m68k_external_reset; ! 435: unsigned int tme_m68k_external_halt; ! 436: unsigned int tme_m68k_external_ipl; ! 437: unsigned int tme_m68k_external_vector; ! 438: }; ! 439: ! 440: /* globals: */ ! 441: extern const tme_uint16_t _tme_m68k_conditions[32]; ! 442: extern const tme_uint32_t _tme_m68k_imm32[9]; ! 443: extern const tme_uint16_t _tme_m68k_imm16[9]; ! 444: extern const tme_uint8_t _tme_m68k_imm8[9]; ! 445: extern const _tme_m68k_xfer_memx _tme_m68k_read_memx[5]; ! 446: extern const _tme_m68k_xfer_memx _tme_m68k_write_memx[5]; ! 447: extern const _tme_m68k_xfer_mem _tme_m68k_read_mem[5]; ! 448: extern const _tme_m68k_xfer_mem _tme_m68k_write_mem[5]; ! 449: ! 450: /* prototypes: */ ! 451: int tme_m68k_new _TME_P((struct tme_m68k *, const char * const *, const void *, char **)); ! 452: void tme_m68k_redispatch _TME_P((struct tme_m68k *)); ! 453: int tme_m68k_go_slow _TME_P((const struct tme_m68k *)); ! 454: void tme_m68k_change_sr _TME_P((struct tme_m68k *, tme_uint16_t)); ! 455: void tme_m68k_external_check _TME_P((struct tme_m68k *, tme_uint32_t)); ! 456: void tme_m68k_tlb_fill _TME_P((struct tme_m68k *, struct tme_m68k_tlb *, unsigned int, tme_uint32_t, unsigned int)); ! 457: void tme_m68k_do_reset _TME_P((struct tme_m68k *)); ! 458: ! 459: /* exception support: */ ! 460: void tme_m68k_exception _TME_P((struct tme_m68k *, tme_uint32_t)); ! 461: void tme_m68k_exception_process_start _TME_P((struct tme_m68k *, unsigned int)); ! 462: void tme_m68k_exception_process_finish _TME_P((struct tme_m68k *, tme_uint8_t, tme_uint8_t)); ! 463: void tme_m68k_exception_process _TME_P((struct tme_m68k *)); ! 464: ! 465: /* rte support: */ ! 466: tme_uint16_t tme_m68k_rte_start _TME_P((struct tme_m68k *)); ! 467: void tme_m68k_rte_finish _TME_P((struct tme_m68k *, tme_uint32_t)); ! 468: ! 469: /* decoder map support: */ ! 470: void _tme_m68000_decoder_map_init _TME_P((struct tme_m68k *)); ! 471: void _tme_m68010_decoder_map_init _TME_P((struct tme_m68k *)); ! 472: void _tme_m68020_decoder_map_init _TME_P((struct tme_m68k *)); ! 473: ! 474: /* read/modify/write cycle support: */ ! 475: struct tme_m68k_tlb *tme_m68k_rmw_start _TME_P((struct tme_m68k *)); ! 476: void tme_m68k_rmw_finish _TME_P((struct tme_m68k *, struct tme_m68k_tlb *)); ! 477: ! 478: /* group 0 fault support: */ ! 479: int tme_m68k_insn_buffer_xfer _TME_P((struct tme_m68k *, tme_uint8_t *, unsigned int, int)); ! 480: void tme_m68k_group0_hook_fast _TME_P((struct tme_m68k *)); ! 481: #define tme_m68k_insn_buffer_empty(ic, r, ra) \ ! 482: tme_m68k_insn_buffer_xfer(ic, r, ra, 1) ! 483: #define tme_m68k_insn_buffer_fill(ic, r, ra) \ ! 484: tme_m68k_insn_buffer_xfer(ic, r, ra, 2) ! 485: int tme_m68k_sequence_empty _TME_P((const struct tme_m68k *, tme_uint8_t *, unsigned int)); ! 486: int tme_m68k_sequence_fill _TME_P((struct tme_m68k *, const tme_uint8_t *, unsigned int)); ! 487: ! 488: /* bitfield support: */ ! 489: unsigned int tme_m68k_bitfield_width _TME_P((struct tme_m68k *)); ! 490: tme_uint32_t _tme_m68k_bitfield_read _TME_P((struct tme_m68k *, int)); ! 491: #define tme_m68k_bitfield_read_signed(ic) ((tme_int32_t) _tme_m68k_bitfield_read(ic, TRUE)) ! 492: #define tme_m68k_bitfield_read_unsigned(ic) _tme_m68k_bitfield_read(ic, FALSE) ! 493: void tme_m68k_bitfield_write_unsigned _TME_P((struct tme_m68k *, tme_uint32_t, int)); ! 494: #define tme_m68k_bitfield_write_signed(ic, v, sf) tme_m68k_bitfield_write_unsigned(ic, (tme_uint32_t) (v), sf) ! 495: ! 496: /* verification: */ ! 497: #ifdef _TME_M68K_VERIFY ! 498: void tme_m68k_verify_init _TME_P((void)); ! 499: void tme_m68k_verify_begin _TME_P((const struct tme_m68k *, const tme_uint8_t *)); ! 500: void tme_m68k_verify_mem_any _TME_P((const struct tme_m68k *, ! 501: unsigned int, tme_uint32_t, ! 502: tme_uint8_t *, int, int)); ! 503: void tme_m68k_verify_end_branch _TME_P((const struct tme_m68k *, tme_uint32_t)); ! 504: void tme_m68k_verify_end _TME_P((const struct tme_m68k *, ! 505: void (*)(struct tme_m68k *, void *, void *))); ! 506: void tme_m68k_verify_hook _TME_P((void)); ! 507: #else /* _TME_M68K_VERIFY */ ! 508: #define tme_m68k_verify_init() do { } while (/* CONSTCOND */ 0) ! 509: #define tme_m68k_verify_begin(ic, s) do { } while (/* CONSTCOND */ 0) ! 510: #define tme_m68k_verify_mem_any(ic, fc, a, v, c, rw) do { } while (/* CONSTCOND */ 0) ! 511: #define tme_m68k_verify_end_branch(ic, pc) do { } while (/* CONSTCOND */ 0) ! 512: #define tme_m68k_verify_end(ic, f) do { } while (/* CONSTCOND */ 0) ! 513: #define tme_m68k_verify_hook() do { } while (/* CONSTCOND */ 0) ! 514: #endif /* _TME_M68K_VERIFY */ ! 515: #define tme_m68k_verify_mem8(ic, fc, a, v, rw) tme_m68k_verify_mem_any(ic, fc, a, (tme_uint8_t *) &(v), -sizeof(tme_uint8_t), rw) ! 516: #define tme_m68k_verify_mem16(ic, fc, a, v, rw) tme_m68k_verify_mem_any(ic, fc, a, (tme_uint8_t *) &(v), -sizeof(tme_uint16_t), rw) ! 517: #define tme_m68k_verify_mem32(ic, fc, a, v, rw) tme_m68k_verify_mem_any(ic, fc, a, (tme_uint8_t *) &(v), -sizeof(tme_uint32_t), rw) ! 518: ! 519: /* instruction functions: */ ! 520: TME_M68K_INSN_DECL(tme_m68k_illegal); ! 521: TME_M68K_INSN_DECL(tme_m68k_exg); ! 522: TME_M68K_INSN_DECL(tme_m68k_extw); ! 523: TME_M68K_INSN_DECL(tme_m68k_extl); ! 524: TME_M68K_INSN_DECL(tme_m68k_extbl); ! 525: TME_M68K_INSN_DECL(tme_m68k_lea); ! 526: TME_M68K_INSN_DECL(tme_m68k_move_from_ccr); ! 527: TME_M68K_INSN_DECL(tme_m68k_move_from_sr); ! 528: TME_M68K_INSN_DECL(tme_m68k_move_from_sr0); ! 529: TME_M68K_INSN_DECL(tme_m68k_swap); ! 530: TME_M68K_INSN_DECL(tme_m68k_nop); ! 531: TME_M68K_INSN_DECL(tme_m68k_scc); ! 532: TME_M68K_INSN_DECL(tme_m68k_dbcc); ! 533: TME_M68K_INSN_DECL(tme_m68k_bcc); ! 534: TME_M68K_INSN_DECL(tme_m68k_bsr); ! 535: TME_M68K_INSN_DECL(tme_m68k_pea); ! 536: TME_M68K_INSN_DECL(tme_m68k_bkpt); ! 537: TME_M68K_INSN_DECL(tme_m68k_tas); ! 538: TME_M68K_INSN_DECL(tme_m68k_tas_r); ! 539: TME_M68K_INSN_DECL(tme_m68k_move_usp); ! 540: TME_M68K_INSN_DECL(tme_m68k_trap); ! 541: TME_M68K_INSN_DECL(tme_m68k_trapv); ! 542: TME_M68K_INSN_DECL(tme_m68k_link); ! 543: TME_M68K_INSN_DECL(tme_m68k_unlk); ! 544: TME_M68K_INSN_DECL(tme_m68k_movec); ! 545: TME_M68K_INSN_DECL(tme_m68k_reset); ! 546: TME_M68K_INSN_DECL(tme_m68k_rtd); ! 547: TME_M68K_INSN_DECL(tme_m68k_rtr); ! 548: TME_M68K_INSN_DECL(tme_m68k_rts); ! 549: TME_M68K_INSN_DECL(tme_m68k_jsr); ! 550: TME_M68K_INSN_DECL(tme_m68k_jmp); ! 551: TME_M68K_INSN_DECL(tme_m68k_rte); ! 552: TME_M68K_INSN_DECL(tme_m68k_stop); ! 553: TME_M68K_INSN_DECL(tme_m68k_priv); ! 554: TME_M68K_INSN_DECL(tme_m68k_cmp2_chk2); ! 555: TME_M68K_INSN_DECL(tme_m68k_callm); ! 556: TME_M68K_INSN_DECL(tme_m68k_rtm); ! 557: TME_M68K_INSN_DECL(tme_m68k_trapcc); ! 558: TME_M68K_INSN_DECL(tme_m68k_bfchg); ! 559: TME_M68K_INSN_DECL(tme_m68k_bfclr); ! 560: TME_M68K_INSN_DECL(tme_m68k_bfexts); ! 561: TME_M68K_INSN_DECL(tme_m68k_bfextu); ! 562: TME_M68K_INSN_DECL(tme_m68k_bfffo); ! 563: TME_M68K_INSN_DECL(tme_m68k_bfins); ! 564: TME_M68K_INSN_DECL(tme_m68k_bfset); ! 565: TME_M68K_INSN_DECL(tme_m68k_bftst); ! 566: TME_M68K_INSN_DECL(tme_m68k_pack); ! 567: TME_M68K_INSN_DECL(tme_m68k_unpk); ! 568: ! 569: #endif /* !_IC_M68K_IMPL_H */ ! 570: ! 571: /* the automatically-generated header information: */ ! 572: #include <m68k-auto.h>
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