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1.1.1.2 ! root 1: /* $Id: m68k-impl.h,v 1.13 2003/10/16 02:48:24 fredette Exp $ */ 1.1 root 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> 1.1.1.2 ! root 40: _TME_RCSID("$Id: m68k-impl.h,v 1.13 2003/10/16 02:48:24 fredette Exp $"); 1.1 root 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: */ 1.1.1.2 ! root 330: unsigned int _tme_m68k_sequence_mode; 1.1 root 331: 332: /* any mode-specific flags for the sequence: */ 1.1.1.2 ! root 333: unsigned int _tme_m68k_sequence_mode_flags; 1.1 root 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: 1.1.1.2 ! root 388: /* the instruction decoder root map: */ 1.1 root 389: const struct _tme_m68k_decoder_root *_tme_m68k_decoder_root; 1.1.1.2 ! root 390: ! 391: /* the instruction burst count, and the remaining burst: */ 1.1 root 392: unsigned int _tme_m68k_instruction_burst; 1.1.1.2 ! root 393: unsigned int _tme_m68k_instruction_burst_remaining; 1.1 root 394: 395: /* the effective address: */ 396: tme_uint32_t _tme_m68k_ea_address; 397: unsigned int _tme_m68k_ea_function_code; 398: 399: /* instruction fetch information: */ 400: tme_uint16_t _tme_m68k_insn_opcode; 401: tme_uint16_t _tme_m68k_insn_specop; 402: tme_uint16_t _tme_m68k_insn_specop2; 403: 404: /* the instruction buffer: */ 405: tme_uint8_t _tme_m68k_insn_buffer[TME_M68K_INSN_WORDS_MAX * sizeof(tme_uint32_t)]; 406: unsigned int _tme_m68k_insn_buffer_off; 407: tme_uint16_t _tme_m68k_insn_buffer_fetch_total; 408: tme_uint16_t _tme_m68k_insn_buffer_fetch_sizes; 409: 410: /* the TLB entry set, and a separate instruction TLB entry set 411: reserved for the executors: */ 412: TME_ATOMIC(struct tme_m68k_tlb *, _tme_m68k_tlb_array); 413: TME_ATOMIC(struct tme_m68k_tlb *, _tme_m68k_itlb); 414: 415: /* exception handling information: */ 416: tme_uint32_t _tme_m68k_exceptions; 417: 418: /* nonzero iff this CPU has a 16-bit bus: */ 419: int _tme_m68k_bus_16bit; 420: 421: /* group 0 exception information: */ 422: void (*_tme_m68k_group0_hook) _TME_P((struct tme_m68k *)); 423: unsigned int _tme_m68k_group0_flags; 424: unsigned int _tme_m68k_group0_function_code; 425: tme_uint32_t _tme_m68k_group0_address; 426: struct _tme_m68k_sequence _tme_m68k_group0_sequence; 427: tme_uint8_t _tme_m68k_group0_buffer_read[sizeof(tme_uint32_t)]; 428: unsigned int _tme_m68k_group0_buffer_read_size; 429: unsigned int _tme_m68k_group0_buffer_read_softrr; 430: tme_uint8_t _tme_m68k_group0_buffer_write[sizeof(tme_uint32_t)]; 431: unsigned int _tme_m68k_group0_buffer_write_size; 432: unsigned int _tme_m68k_group0_buffer_write_softrr; 433: 434: /* the external request lines: */ 435: tme_mutex_t tme_m68k_external_mutex; 436: tme_cond_t tme_m68k_external_cond; 437: unsigned int tme_m68k_external_reset; 438: unsigned int tme_m68k_external_halt; 439: unsigned int tme_m68k_external_ipl; 440: unsigned int tme_m68k_external_vector; 441: }; 442: 443: /* globals: */ 444: extern const tme_uint16_t _tme_m68k_conditions[32]; 445: extern const tme_uint32_t _tme_m68k_imm32[9]; 446: extern const tme_uint16_t _tme_m68k_imm16[9]; 447: extern const tme_uint8_t _tme_m68k_imm8[9]; 448: extern const _tme_m68k_xfer_memx _tme_m68k_read_memx[5]; 449: extern const _tme_m68k_xfer_memx _tme_m68k_write_memx[5]; 450: extern const _tme_m68k_xfer_mem _tme_m68k_read_mem[5]; 451: extern const _tme_m68k_xfer_mem _tme_m68k_write_mem[5]; 452: 453: /* prototypes: */ 454: int tme_m68k_new _TME_P((struct tme_m68k *, const char * const *, const void *, char **)); 455: void tme_m68k_redispatch _TME_P((struct tme_m68k *)); 456: int tme_m68k_go_slow _TME_P((const struct tme_m68k *)); 457: void tme_m68k_change_sr _TME_P((struct tme_m68k *, tme_uint16_t)); 458: void tme_m68k_external_check _TME_P((struct tme_m68k *, tme_uint32_t)); 459: void tme_m68k_tlb_fill _TME_P((struct tme_m68k *, struct tme_m68k_tlb *, unsigned int, tme_uint32_t, unsigned int)); 460: void tme_m68k_do_reset _TME_P((struct tme_m68k *)); 461: 462: /* exception support: */ 463: void tme_m68k_exception _TME_P((struct tme_m68k *, tme_uint32_t)); 464: void tme_m68k_exception_process_start _TME_P((struct tme_m68k *, unsigned int)); 465: void tme_m68k_exception_process_finish _TME_P((struct tme_m68k *, tme_uint8_t, tme_uint8_t)); 466: void tme_m68k_exception_process _TME_P((struct tme_m68k *)); 467: 468: /* rte support: */ 469: tme_uint16_t tme_m68k_rte_start _TME_P((struct tme_m68k *)); 470: void tme_m68k_rte_finish _TME_P((struct tme_m68k *, tme_uint32_t)); 471: 472: /* decoder map support: */ 473: void _tme_m68000_decoder_map_init _TME_P((struct tme_m68k *)); 474: void _tme_m68010_decoder_map_init _TME_P((struct tme_m68k *)); 475: void _tme_m68020_decoder_map_init _TME_P((struct tme_m68k *)); 476: 477: /* read/modify/write cycle support: */ 478: struct tme_m68k_tlb *tme_m68k_rmw_start _TME_P((struct tme_m68k *)); 479: void tme_m68k_rmw_finish _TME_P((struct tme_m68k *, struct tme_m68k_tlb *)); 480: 481: /* group 0 fault support: */ 482: int tme_m68k_insn_buffer_xfer _TME_P((struct tme_m68k *, tme_uint8_t *, unsigned int, int)); 483: void tme_m68k_group0_hook_fast _TME_P((struct tme_m68k *)); 484: #define tme_m68k_insn_buffer_empty(ic, r, ra) \ 485: tme_m68k_insn_buffer_xfer(ic, r, ra, 1) 486: #define tme_m68k_insn_buffer_fill(ic, r, ra) \ 487: tme_m68k_insn_buffer_xfer(ic, r, ra, 2) 488: int tme_m68k_sequence_empty _TME_P((const struct tme_m68k *, tme_uint8_t *, unsigned int)); 489: int tme_m68k_sequence_fill _TME_P((struct tme_m68k *, const tme_uint8_t *, unsigned int)); 490: 491: /* bitfield support: */ 492: unsigned int tme_m68k_bitfield_width _TME_P((struct tme_m68k *)); 493: tme_uint32_t _tme_m68k_bitfield_read _TME_P((struct tme_m68k *, int)); 494: #define tme_m68k_bitfield_read_signed(ic) ((tme_int32_t) _tme_m68k_bitfield_read(ic, TRUE)) 495: #define tme_m68k_bitfield_read_unsigned(ic) _tme_m68k_bitfield_read(ic, FALSE) 496: void tme_m68k_bitfield_write_unsigned _TME_P((struct tme_m68k *, tme_uint32_t, int)); 497: #define tme_m68k_bitfield_write_signed(ic, v, sf) tme_m68k_bitfield_write_unsigned(ic, (tme_uint32_t) (v), sf) 498: 499: /* verification: */ 1.1.1.2 ! root 500: void tme_m68k_verify_hook _TME_P((void)); 1.1 root 501: #ifdef _TME_M68K_VERIFY 502: void tme_m68k_verify_init _TME_P((void)); 503: void tme_m68k_verify_begin _TME_P((const struct tme_m68k *, const tme_uint8_t *)); 504: void tme_m68k_verify_mem_any _TME_P((const struct tme_m68k *, 505: unsigned int, tme_uint32_t, 506: tme_uint8_t *, int, int)); 507: void tme_m68k_verify_end_branch _TME_P((const struct tme_m68k *, tme_uint32_t)); 508: void tme_m68k_verify_end _TME_P((const struct tme_m68k *, 509: void (*)(struct tme_m68k *, void *, void *))); 510: #else /* _TME_M68K_VERIFY */ 511: #define tme_m68k_verify_init() do { } while (/* CONSTCOND */ 0) 512: #define tme_m68k_verify_begin(ic, s) do { } while (/* CONSTCOND */ 0) 513: #define tme_m68k_verify_mem_any(ic, fc, a, v, c, rw) do { } while (/* CONSTCOND */ 0) 514: #define tme_m68k_verify_end_branch(ic, pc) do { } while (/* CONSTCOND */ 0) 515: #define tme_m68k_verify_end(ic, f) do { } while (/* CONSTCOND */ 0) 516: #define tme_m68k_verify_hook() do { } while (/* CONSTCOND */ 0) 517: #endif /* _TME_M68K_VERIFY */ 518: #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) 519: #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) 520: #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) 521: 522: /* instruction functions: */ 523: TME_M68K_INSN_DECL(tme_m68k_illegal); 524: TME_M68K_INSN_DECL(tme_m68k_exg); 525: TME_M68K_INSN_DECL(tme_m68k_extw); 526: TME_M68K_INSN_DECL(tme_m68k_extl); 527: TME_M68K_INSN_DECL(tme_m68k_extbl); 528: TME_M68K_INSN_DECL(tme_m68k_lea); 529: TME_M68K_INSN_DECL(tme_m68k_move_from_ccr); 530: TME_M68K_INSN_DECL(tme_m68k_move_from_sr); 531: TME_M68K_INSN_DECL(tme_m68k_move_from_sr0); 532: TME_M68K_INSN_DECL(tme_m68k_swap); 533: TME_M68K_INSN_DECL(tme_m68k_nop); 534: TME_M68K_INSN_DECL(tme_m68k_scc); 535: TME_M68K_INSN_DECL(tme_m68k_dbcc); 536: TME_M68K_INSN_DECL(tme_m68k_bcc); 537: TME_M68K_INSN_DECL(tme_m68k_bsr); 538: TME_M68K_INSN_DECL(tme_m68k_pea); 539: TME_M68K_INSN_DECL(tme_m68k_bkpt); 540: TME_M68K_INSN_DECL(tme_m68k_tas); 541: TME_M68K_INSN_DECL(tme_m68k_tas_r); 542: TME_M68K_INSN_DECL(tme_m68k_move_usp); 543: TME_M68K_INSN_DECL(tme_m68k_trap); 544: TME_M68K_INSN_DECL(tme_m68k_trapv); 545: TME_M68K_INSN_DECL(tme_m68k_link); 546: TME_M68K_INSN_DECL(tme_m68k_unlk); 547: TME_M68K_INSN_DECL(tme_m68k_movec); 548: TME_M68K_INSN_DECL(tme_m68k_reset); 549: TME_M68K_INSN_DECL(tme_m68k_rtd); 550: TME_M68K_INSN_DECL(tme_m68k_rtr); 551: TME_M68K_INSN_DECL(tme_m68k_rts); 552: TME_M68K_INSN_DECL(tme_m68k_jsr); 553: TME_M68K_INSN_DECL(tme_m68k_jmp); 554: TME_M68K_INSN_DECL(tme_m68k_rte); 555: TME_M68K_INSN_DECL(tme_m68k_stop); 556: TME_M68K_INSN_DECL(tme_m68k_priv); 557: TME_M68K_INSN_DECL(tme_m68k_cmp2_chk2); 558: TME_M68K_INSN_DECL(tme_m68k_callm); 559: TME_M68K_INSN_DECL(tme_m68k_rtm); 560: TME_M68K_INSN_DECL(tme_m68k_trapcc); 561: TME_M68K_INSN_DECL(tme_m68k_bfchg); 562: TME_M68K_INSN_DECL(tme_m68k_bfclr); 563: TME_M68K_INSN_DECL(tme_m68k_bfexts); 564: TME_M68K_INSN_DECL(tme_m68k_bfextu); 565: TME_M68K_INSN_DECL(tme_m68k_bfffo); 566: TME_M68K_INSN_DECL(tme_m68k_bfins); 567: TME_M68K_INSN_DECL(tme_m68k_bfset); 568: TME_M68K_INSN_DECL(tme_m68k_bftst); 569: TME_M68K_INSN_DECL(tme_m68k_pack); 570: TME_M68K_INSN_DECL(tme_m68k_unpk); 571: 572: #endif /* !_IC_M68K_IMPL_H */ 573: 574: /* the automatically-generated header information: */ 575: #include <m68k-auto.h>
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